@article{LehnertzBialonskiHorstmannetal.2009, author = {Lehnertz, Klaus and Bialonski, Stephan and Horstmann, Marie-Therese and Krug, Dieter and Rothkegel, Alexander and Staniek, Matth{\"a}us and Wagner, Tobias}, title = {Synchronization phenomena in human epileptic brain networks}, series = {Journal of neuroscience methods}, volume = {183}, journal = {Journal of neuroscience methods}, number = {1}, issn = {0165-0270}, doi = {10.1016/j.jneumeth.2009.05.015}, pages = {42 -- 48}, year = {2009}, language = {en} } @inproceedings{BuxbaumSchwarteRingbeck2000, author = {Buxbaum, Bernd and Schwarte, Rudolf and Ringbeck, Thorsten}, title = {Synchronization in spread spectrum laser radar systems based on PMD-DLL}, series = {Laser radar technology and applications V : 26 - 28 April 2000, Orlando, USA. - (SPIE proceedings series ; 4035)}, booktitle = {Laser radar technology and applications V : 26 - 28 April 2000, Orlando, USA. - (SPIE proceedings series ; 4035)}, editor = {Kamerman, Gary W.}, publisher = {SPIE}, address = {Bellingham, Wash.}, isbn = {0-8194-3661-5}, issn = {0038-7355}, pages = {204 -- 216}, year = {2000}, language = {en} } @book{StaatDigelTrzewiketal.2024, author = {Staat, Manfred and Digel, Ilya and Trzewik, J{\"u}rgen and Sielemann, Stefanie and Erni, Daniel and Zylka, Waldemar}, title = {Symposium Proceedings; 4th YRA MedTech Symposium 2024 : February 1 / 2024 / FH Aachen}, publisher = {Universit{\"a}t Duisburg-Essen}, address = {Duisburg}, organization = {MedTech Symposium}, isbn = {978-3-940402-65-3}, doi = {10.17185/duepublico/81475}, pages = {40 Seiten}, year = {2024}, language = {en} } @book{StaatErni2019, author = {Staat, Manfred and Erni, Daniel}, title = {Symposium Proceedings; 3rd YRA MedTech Symposium 2019: May 24 / 2019 / FH Aachen}, publisher = {Universit{\"a}t Duisburg-Essen}, address = {Duisburg}, organization = {MedTech Symposium}, isbn = {978-3-940402-22-6}, doi = {10.17185/duepublico/48750}, pages = {49 Seiten}, year = {2019}, language = {en} } @book{GrotendorstDornseifferSchoberth1994, author = {Grotendorst, Johannes and Dornseiffer, J{\"u}rgen and Schoberth, Siegfried M.}, title = {Symbolic-numeric computation techniques for problem-solving in Physical Chemistry and Biochemistry . Stand 08.06.1994 / Grotendorst, Johannes ; Dornseiffer, J{\"u}rgen ; Schoberth, Siegfried M.}, publisher = {ZAM, KFA}, address = {J{\"u}lich}, pages = {9 S.}, year = {1994}, language = {en} } @book{GrotendorstDornseifferSchoberth1994, author = {Grotendorst, Johannes and Dornseiffer, J{\"u}rgen and Schoberth, Siegfried M.}, title = {Symbolic-numeric computation techniques for problem-solving in Physical Chemistry and Biochemistry . Stand 08.06.1994 / Grotendorst, Johannes ; Dornseiffer, J{\"u}rgen ; Schoberth, Siegfried M.}, publisher = {ZAM, KFA}, address = {J{\"u}lich}, pages = {9 S.}, year = {1994}, language = {en} } @masterthesis{Balthazar2023, type = {Bachelor Thesis}, author = {Balthazar, Kim}, title = {SWASH : endlich bequem waschen}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {195 Seiten}, year = {2023}, abstract = {Der S W A S H ist eine innovative Produktl{\"o}sung zur Reduzierung von Pain Points beim allt{\"a}glichen Reinigen von Textilien. Schmutzige Kleidungsst{\"u}cke m{\"u}ssen in Zukunft weniger mit Wasser und Waschmitteln in Ber{\"u}hrung kommen. Dadurch minimiert sich der Ressourcenverbrauch, die Langlebigkeit der Kleidung wird erh{\"o}ht und die umfangreiche Aufgabe des Waschens wird bequemer, ohne Einbußen in Sauberkeit und Hygiene haben zu m{\"u}ssen. Der S W A S H wird durch KI gesteuert und gew{\"a}hrleistet so eine kinderleichte Nutzbarkeit. Da er mit Wassertanks betrieben wird, ben{\"o}tigt man keinen Wasseranschluss und kann die Platzierung frei w{\"a}hlen. Durch den modularen und minimalistischen Aufbau kann er auf die {\"A}sthetik des individuellen Wohnraums angepasst werden. Der Refresher mit Waschfunktion kann als freistehendes M{\"o}belst{\"u}ck erworben oder in einen vorhandenen Kleiderschrank integriert werden.}, language = {de} } @article{KodomskoiKotliarSchroederetal.2019, author = {Kodomskoi, Leonid and Kotliar, Konstantin and Schr{\"o}der, Andreas and Weiss, Michael and Hille, Konrad}, title = {Suture-Probe Canaloplasty as an Alternative to Canaloplasty using the iTrack™ Microcatheter}, series = {Journal of Glaucoma}, journal = {Journal of Glaucoma}, number = {Epub ahead of print}, publisher = {Lippincott Williams \& Wilkins}, address = {Philadelphia}, issn = {1057-0829}, doi = {10.1097/IJG.0000000000001321}, year = {2019}, language = {en} } @article{HacklAndermahrStaatetal.2017, author = {Hackl, M. and Andermahr, J. and Staat, Manfred and Bremer, I. and Borggrefe, J. and Prescher, A. and M{\"u}ller, L. P. and Wegmann, K.}, title = {Suture button reconstruction of the central band of the interosseous membrane in Essex-Lopresti lesions: a comparative biomechanical investigation}, series = {The Journal of Hand Surgery (European Volume)}, volume = {42}, journal = {The Journal of Hand Surgery (European Volume)}, number = {4}, publisher = {Sage}, address = {London}, issn = {2043-6289 (Online)}, doi = {10.1177/1753193416665943}, pages = {370 -- 376}, year = {2017}, language = {en} } @article{BerneckerKlierSternetal.2018, author = {Bernecker, Andreas and Klier, Julia and Stern, Sebastian and Thiel, Lea}, title = {Sustaining high performance beyond public-sector pilot projects.}, number = {September 2018}, organization = {McKinsey\&Company}, year = {2018}, language = {en} } @article{LeiseEsserEichenlaubetal.2021, author = {Leise, Philipp and Eßer, Arved and Eichenlaub, Tobias and Schleiffer, Jean-Eric and Altherr, Lena and Rinderknecht, Stephan and Pelz, Peter F.}, title = {Sustainable system design of electric powertrains - comparison of optimization methods}, series = {Engineering Optimization}, journal = {Engineering Optimization}, publisher = {Taylor \& Francis}, address = {London}, issn = {0305-215X}, doi = {10.1080/0305215X.2021.1928660}, year = {2021}, abstract = {The transition within transportation towards battery electric vehicles can lead to a more sustainable future. To account for the development goal 'climate action' stated by the United Nations, it is mandatory, within the conceptual design phase, to derive energy-efficient system designs. One barrier is the uncertainty of the driving behaviour within the usage phase. This uncertainty is often addressed by using a stochastic synthesis process to derive representative driving cycles and by using cycle-based optimization. To deal with this uncertainty, a new approach based on a stochastic optimization program is presented. This leads to an optimization model that is solved with an exact solver. It is compared to a system design approach based on driving cycles and a genetic algorithm solver. Both approaches are applied to find efficient electric powertrains with fixed-speed and multi-speed transmissions. Hence, the similarities, differences and respective advantages of each optimization procedure are discussed.}, language = {en} } @article{HafidiElHatkaSchmitzetal.2024, author = {Hafidi, Youssef and El Hatka, Hicham and Schmitz, Dominik and Krauss, Manuel and Pettrak, J{\"u}rgen and Biel, Markus and Ittobane, Najim}, title = {Sustainable soil additives for water and micronutrient supply: swelling and chelating properties of polyaspartic acid hydrogels utilizing newly developed crosslinkers}, series = {Gels}, volume = {10}, journal = {Gels}, number = {3}, publisher = {MDPI}, address = {Basel}, issn = {2310-2861}, doi = {10.3390/gels10030170}, pages = {Artikel 170}, year = {2024}, abstract = {Drought and water shortage are serious problems in many arid and semi-arid regions. This problem is getting worse and even continues in temperate climatic regions due to climate change. To address this problem, the use of biodegradable hydrogels is increasingly important for the application as water-retaining additives in soil. Furthermore, efficient (micro-)nutrient supply can be provided by the use of tailored hydrogels. Biodegradable polyaspartic acid (PASP) hydrogels with different available (1,6-hexamethylene diamine (HMD) and L-lysine (LYS)) and newly developed crosslinkers based on diesters of glycine (GLY) and (di-)ethylene glycol (DEG and EG, respectively) were synthesized and characterized using Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM) and regarding their swelling properties (kinetic, absorbency under load (AUL)) as well as biodegradability of PASP hydrogel. Copper (II) and zinc (II), respectively, were loaded as micronutrients in two different approaches: in situ with crosslinking and subsequent loading of prepared hydrogels. The results showed successful syntheses of di-glycine-ester-based crosslinkers. Hydrogels with good water-absorbing properties were formed. Moreover, the developed crosslinking agents in combination with the specific reaction conditions resulted in higher water absorbency with increased crosslinker content used in synthesis (10\% vs. 20\%). The prepared hydrogels are candidates for water-storing soil additives due to the biodegradability of PASP, which is shown in an exemple. The incorporation of Cu(II) and Zn(II) ions can provide these micronutrients for plant growth.}, language = {en} } @article{Biewendt2020, author = {Biewendt, Marcel}, title = {Sustainable development: A quantitative analysis regarding the impact of resource rents on state welfare from 2002 to 2017}, series = {SocioEconomic Challenges}, volume = {4}, journal = {SocioEconomic Challenges}, number = {4}, publisher = {ARMG Publishing}, address = {Sumy}, issn = {2520-6214}, doi = {10.21272/sec.4(4).119-131.2020}, pages = {119 -- 131}, year = {2020}, abstract = {This paper uses a quantitative analysis to examine the interdependence and impact of resource rents on socio-economic development from 2002 to 2017. Nigeria and Norway have been chosen as reference countries due to their abundance of natural resources by similar economic performance, while the ranking in the Human Development Index differs dramatically. As the Human Development Index provides insight into a country's cultural and socio-economic characteristics and development in addition to economic indicators, it allows a comparison of the two countries. The hypothesis presented and discussed in this paper was researched before. A qualitative research approach was used in the author's master's thesis "The Human Development Index (HDI) as a Reflection of Resource Abundance (using Nigeria and Norway as a case study)" in 2018. The management of scarce resources is an important aspect in the development of modern countries and those on the threshold of becoming industrialised nations. The effects of a mistaken resource management are not only of a purely economic nature but also of a social and socio-economic nature. In order to present a partial aspect of these dependencies and influences this paper uses a quantitative analysis to examine the interdependence and impact of resource rents on socio-economic development from 2002 to 2017. Nigeria and Norway have been chosen as reference countries due to their abundance of natural resources by similar economic performance, while the ranking in the Human Development Index differs significantly. As the Human Development Index provides insight into a country's cultural and socio-economic characteristics and development in addition to economic indicators, it allows a comparison of the two countries. This paper found out in a holistic perspective that (not or poorly managed) resource wealth in itself has a negative impact on socio-economic development and significantly reduces the productivity of the citizens of a state. This is expressed in particular for the years 2002 till 2017 in a negative correlation of GDP per capita and HDI value with the share respectively the size of resources in the GDP of a country.}, language = {en} } @inproceedings{Huening2021, author = {H{\"u}ning, Felix}, title = {Sustainable changes beyond covid-19 for a second semester physics course for electrical engineering students}, series = {Blended Learning in Engineering Education: challenging, enlightening - and lasting?}, booktitle = {Blended Learning in Engineering Education: challenging, enlightening - and lasting?}, isbn = {978-2-87352-023-6}, pages = {1424 -- 1428}, year = {2021}, abstract = {The course Physics for Electrical Engineering is part of the curriculum of the bachelor program Electrical Engineering at University of Applied Science Aachen. Before covid-19 the course was conducted in a rather traditional way with all parts (lecture, exercise and lab) face-to-face. This teaching approach changed fundamentally within a week when the covid-19 limitations forced all courses to distance learning. All parts of the course were transformed to pure distance learning including synchronous and asynchronous parts for the lecture, live online-sessions for the exercises and self-paced labs at home. Using these methods, the course was able to impart the required knowledge and competencies. Taking the teacher's observations of the student's learning behaviour and engagement, the formal and informal feedback of the students and the results of the exams into account, the new methods are evaluated with respect to effectiveness, sustainability and suitability for competence transfer. Based on this analysis strong and weak points of the concept and countermeasures to solve the weak points were identified. The analysis further leads to a sustainable teaching approach combining synchronous and asynchronous parts with self-paced learning times that can be used in a very flexible manner for different learning scenarios, pure online, hybrid (mixture of online and presence times) and pure presence teaching.}, language = {en} } @article{DigelWehlitzKayseretal.2018, author = {Digel, Ilya and Wehlitz, V. and Kayser, Peter and Figiel-Lange, A. and Bassam, R. and Rundstedt, F. von}, title = {Suspension depletion approach for exemption of infected Solanum jasminoides cells from pospiviroids}, series = {Plant Pathology}, volume = {67}, journal = {Plant Pathology}, number = {2}, publisher = {Wiley}, address = {Oxford}, issn = {1365-3059}, doi = {10.1111/ppa.12750}, pages = {358 -- 365}, year = {2018}, abstract = {Despite numerous studies, viroid elimination from infected plants remains a very challenging task. This study introduces for the first time a novel 'suspension depletion' approach for exemption of Solanum jasminoides plants from viroids. The proposed method implies initial establishment of suspension cultures of the infected plant cells. The suspended cells were then physically treated (mild thermotherapy, 33 °C), which presumably delayed the replication of the viroid. The viroid concentration in the treated biomass was monitored weekly using pospiviroid-specific PCR. After 10-12 weeks of continuous treatment, a sufficient decrease in viroid concentration was observed such that the infection became undetectable by PCR. The treated single cells then gave rise to microcolonies on a solid culture medium and the obtained viroid-negative clones were further promoted to regenerate into viroid-free plants. Three years of accumulated experimental data suggests feasibility, broad applicability, and good efficacy of the proposed approach.}, language = {en} } @inproceedings{BraunChengDoweyetal.2020, author = {Braun, Sebastian and Cheng, Chi-Tsun and Dowey, Steve and Wollert, J{\"o}rg}, title = {Survey on Security Concepts to Adapt Flexible Manufacturing and Operations Management based upon Multi-Agent Systems}, series = {2020 IEEE 29th International Symposium on Industrial Electronics (ISIE), Proceedings}, booktitle = {2020 IEEE 29th International Symposium on Industrial Electronics (ISIE), Proceedings}, publisher = {IEEE}, address = {New York, NY}, doi = {10.1109/ISIE45063.2020.9152210}, pages = {5 Seiten}, year = {2020}, abstract = {The increasing digitalization brings new opportunities but also puts new challenges to modern industrial systems. Software agents are one of the key technologies towards self-optimizing factories and are currently used to address the needs of cyber-physical production systems (CPPS). However their interplay in industrial settings needs to be understood better.This paper focusses on securing a cloud infrastructure for multi-agent systems for industrial sites. An industrial site contains multiple production processes that need to communicate with each other and each physical resource is abstracted with a software agent. This volatile architecture needs to be managed and protected from manipulation. The proposed infrastructure presents a security concept for TCP/IP communication between agents, machines, and external networks. It is based on open-source software and tested on a three-node edge cloud controlling a model-plant.}, language = {en} } @article{HerrmannKearney2002, author = {Herrmann, Ulf and Kearney, David W.}, title = {Survey of Thermal Energy Storage for Parabolic Trough Power Plants}, series = {Journal of Solar Energy Engineering}, volume = {124}, journal = {Journal of Solar Energy Engineering}, number = {2}, issn = {1528-8986 (Online)}, doi = {10.1115/1.1467601}, pages = {145 -- 152}, year = {2002}, language = {en} } @article{KernDrumm1994, author = {Kern, Alexander and Drumm, F.}, title = {Survey of the lightning threat for aircraft based on natural lightning data and fixed in the German Standard DIN VG 95371 / Part 10}, series = {Proceedings of the 1994 International Aerospace and Ground Conference on Lightning and Static Electricity : May 14 - 27, 1994, Bundesakademie f{\"u}r Wehrverwaltung und Wehrtechnik Mannheim ; final report / [conference chairman Jan Luiken TerHaseborg]}, journal = {Proceedings of the 1994 International Aerospace and Ground Conference on Lightning and Static Electricity : May 14 - 27, 1994, Bundesakademie f{\"u}r Wehrverwaltung und Wehrtechnik Mannheim ; final report / [conference chairman Jan Luiken TerHaseborg]}, publisher = {Bundesakad. f{\"u}r Wehrverwaltung und Wehrtechnik}, address = {Mannheim}, pages = {IX, 492 S : Ill., graph. Darst}, year = {1994}, language = {en} } @article{BhattaraiJabbariAndingetal.2018, author = {Bhattarai, Aroj and Jabbari, Medisa and Anding, Ralf and Staat, Manfred}, title = {Surgical treatment of vaginal vault prolapse using different prosthetic mesh implants: a finite element analysis}, series = {tm - Technisches Messen}, volume = {85}, journal = {tm - Technisches Messen}, number = {5}, publisher = {De Gruyter}, address = {Berlin}, issn = {2196-7113}, doi = {10.1515/teme-2017-0115}, pages = {331 -- 342}, year = {2018}, abstract = {Particularly multiparous elderly women may suffer from vaginal vault prolapse after hysterectomy due to weak support from lax apical ligaments. A decreased amount of estrogen and progesterone in older age is assumed to remodel the collagen thereby reducing tissue stiffness. Sacrocolpopexy is either performed as open or laparoscopic surgery using prosthetic mesh implants to substitute lax ligaments. Y-shaped mesh models (DynaMesh, Gynemesh, and Ultrapro) are implanted in a 3D female pelvic floor finite element model in the extraperitoneal space from the vaginal cuff to the first sacral (S1) bone below promontory. Numerical simulations are conducted during Valsalva maneuver with weakened tissues modeled by reduced tissue stiffness. Tissues are modeled as incompressible, isotropic hyperelastic materials whereas the meshes are modeled either as orthotropic linear elastic or as isotropic hyperlastic materials. The positions of the vaginal cuff and the bladder base are calculated from the pubococcygeal line for female pelvic floor at rest, for prolapse and after repair using the three meshes. Due to mesh mechanics and mesh pore deformation along the loaded direction, the DynaMesh with regular rectangular mesh pores is found to provide better mechanical support to the organs than the Gynemesh and the Ultrapro with irregular hexagonal mesh pores. Insbesondere {\"a}ltere, mehrgeb{\"a}hrende Frauen leiden h{\"a}ufiger an einem Scheidenvorfall nach einer Hysterektomie aufgrund der schwachen Unterst{\"u}tzung durch laxe apikale B{\"a}nder. Es wird angenommen, dass eine verringerte Menge an {\"O}strogen und Progesteron im h{\"o}heren Alter das Kollagen umformt, wodurch die Gewebesteifigkeit reduziert wird. Die Sakrokolpopexie ist eine offene oder laparoskopische Operation, die mit prothetischen Netzimplantaten durchgef{\"u}hrt wird, um laxe B{\"a}nder zu ersetzen. Y-f{\"o}rmige Netzmodelle (DynaMesh, Gynemesh und Ultrapro) werden in einem 3D-Modell des weiblichen Beckenbodens im extraperitonealen Raum vom Vaginalstumpf bis zum Promontorium implantiert. Numerische Simulationen werden w{\"a}hrend des Valsalva-Man{\"o}vers mit geschw{\"a}chtem Gewebe durchgef{\"u}hrt, das durch eine reduzierte Gewebesteifigkeit modelliert wird. Die Gewebe werden als inkompressible, isotrop hyperelastische Materialien modelliert, w{\"a}hrend die Netze entweder als orthotrope linear elastische oder als isotrope hyperlastische Materialien modelliert werden. Die Positionen des Vaginalstumpfs, der Blase und der Harnr{\"o}hrenachse werden anhand der Pubococcygeallinie aus der Ruhelage, f{\"u}r den Prolaps und nach der Reparatur unter Verwendung der drei Netze berechnet. Aufgrund der Netzmechanik und der Netzporenverformung bietet das DynaMesh mit regelm{\"a}ßigen rechteckigen Netzporen eine bessere mechanische Unterst{\"u}tzung und eine Neupositionierung des Scheidengew{\"o}lbes, der Blase und der Urethraachse als Gynemesh und Ultrapro mit unregelm{\"a}ßigen hexagonalen Netzporen.}, language = {en} } @article{BalakirskiKotliarPaulyetal.2018, author = {Balakirski, Galina and Kotliar, Konstantin and Pauly, Karolin J. and Krings, Laura K. and R{\"u}bben, Albert and Baron, Jens M. and Schmitt, Laurenz}, title = {Surgical Site Infections After Dermatologic Surgery in Immunocompromised Patients: A Single-Center Experience}, series = {Dermatologic Surgery}, journal = {Dermatologic Surgery}, number = {44 (12)}, publisher = {Wolters Kluwer}, doi = {10.1097/DSS.0000000000001615}, pages = {1525 -- 1536}, year = {2018}, abstract = {BACKGROUND Immunosuppression is often considered as an indication for antibiotic prophylaxis to prevent surgical site infections (SSI) while performing skin surgery. However, the data on the risk of developing SSI after dermatologic surgery in immunosuppressed patients are limited. PATIENTS AND METHODS All patients of the Department of Dermatology and Allergology at the University Hospital of RWTH Aachen in Aachen, Germany, who underwent hospitalization for a dermatologic surgery between June 2016 and January 2017 (6 months), were followed up after surgery until completion of the wound healing process. The follow-up addressed the occurrence of SSI and the need for systemic antibiotics after the operative procedure. Immunocompromised patients were compared with immunocompetent patients. The investigation was conducted as a retrospective analysis of patient records. RESULTS The authors performed 284 dermatologic surgeries in 177 patients. Nineteen percent (54/284) of the skin surgery was performed on immunocompromised patients. The most common indications for surgical treatment were nonmelanoma skin cancer and malignant melanomas. Surgical site infections occurred in 6.7\% (19/284) of the cases. In 95\% (18/19), systemic antibiotic treatment was needed. Twenty-one percent of all SSI (4/19) were seen in immunosuppressed patients. CONCLUSION According to the authors' data, immunosuppression does not represent a significant risk factor for SSI after dermatologic surgery. However, larger prospective studies are needed to make specific recommendations on the use of antibiotic prophylaxis while performing skin surgery in these patients. The available data on complications after dermatologic surgery have improved over the past years. Particularly, additional risk factors have been identified for surgical site infections (SSI). Purulent surgical sites, older age, involvement of head, neck, and acral regions, and also the involvement of less experienced surgeons have been reported to increase the risk of the SSI after dermatologic surgeries.1 In general, the incidence of SSI after skin surgery is considered to be low.1,2 However, antibiotics in dermatologic surgeries, especially in the perioperative setting, seem to be overused,3,4 particularly regarding developing antibiotic resistances and side effects. Immunosuppression has been recommended to be taken into consideration as an additional indication for antibiotic prophylaxis to prevent SSI after skin surgery in special cases.5,6 However, these recommendations do not specify the exact dermatologic surgeries, and were not specifically developed for dermatologic surgery patients and treatments, but adopted from other surgical fields.6 According to the survey conducted on American College of Mohs Surgery members in 2012, 13\% to 29\% of the surgeons administered antibiotic prophylaxis to immunocompromised patients to prevent SSI while performing dermatologic surgery on noninfected skin,3 although this was not recommended by Journal of the American Academy of Dermatology Advisory Statement. Indeed, the data on the risk of developing SSI after dermatologic surgery in immunosuppressed patients are limited. However, it is possible that due to the insufficient evidence on the risk of SSI occurrence in this patient group, dermatologic surgeons tend to overuse perioperative antibiotic prophylaxis. To make specific recommendations on the use of antibiotic prophylaxis in immunosuppressed patients in the field of skin surgery, more information about the incidence of SSI after dermatologic surgery in these patients is needed. The aim of this study was to fill this data gap by investigating whether there is an increased risk of SSI after skin surgery in immunocompromised patients compared with immunocompetent patients.}, language = {en} } @article{HamouKotliarTanetal.2020, author = {Hamou, Hussam Aldin and Kotliar, Konstantin and Tan, Sonny Kian and Weiß, Christel and Blume, Christian and Clusmann, Hans and Schubert, Gerrit Alexander and Albanna, Walid}, title = {Surgical nuances and placement of subgaleal drains for supratentorial procedures—a prospective analysis of efficacy and outcome in 150 craniotomies}, series = {Acta Neurochirurgica}, volume = {2020}, journal = {Acta Neurochirurgica}, number = {162}, publisher = {Springer Nature}, address = {Cham}, issn = {0942-0940}, doi = {10.1007/s00701-019-04196-6}, pages = {729 -- 736}, year = {2020}, abstract = {Background For supratentorial craniotomy, surgical access, and closure technique, including placement of subgaleal drains, may vary considerably. The influence of surgical nuances on postoperative complications such as cerebrospinal fluid leakage or impaired wound healing overall remains largely unclear. With this study, we are reporting our experiences and the impact of our clinical routines on outcome in a prospectively collected data set. Method We prospectively observed 150 consecutive patients undergoing supratentorial craniotomy and recorded technical variables (type/length of incision, size of craniotomy, technique of dural and skin closure, type of dressing, and placement of subgaleal drains). Outcome variables (subgaleal hematoma/CSF collection, periorbital edema, impairment of wound healing, infection, and need for operative revision) were recorded at time of discharge and at late follow-up. Results Early subgaleal fluid collection was observed in 36.7\% (2.8\% at the late follow-up), and impaired wound healing was recorded in 3.3\% of all cases, with an overall need for operative revision of 6.7\%. Neither usage of dural sealants, lack of watertight dural closure, and presence of subgaleal drains, nor type of skin closure or dressing influenced outcome. Curved incisions, larger craniotomy, and tumor size, however, were associated with an increase in early CSF or hematoma collection (p < 0.0001, p = 0.001, p < 0.01 resp.), and larger craniotomy size was associated with longer persistence of subgaleal fluid collections (p < 0.05). Conclusions Based on our setting, individual surgical nuances such as the type of dural closure and the use of subgaleal drains resulted in a comparable complication rate and outcome. Subgaleal fluid collections were frequently observed after supratentorial procedures, irrespective of the closing technique employed, and resolve spontaneously in the majority of cases without significant sequelae. Our results are limited due to the observational nature in our single-center study and need to be validated by supportive prospective randomized design.}, language = {en} } @misc{PierHummenStellberg1996, author = {Pier, Arnold and Hummen, J{\"o}rg and Stellberg, Michael}, title = {Surgical clip applicator}, pages = {16, 7, 2 S. : graph. Darst.}, year = {1996}, language = {en} } @article{BronderPoghossianJessingetal.2019, author = {Bronder, Thomas and Poghossian, Arshak and Jessing, Max P. and Keusgen, Michael and Sch{\"o}ning, Michael Josef}, title = {Surface regeneration and reusability of label-free DNA biosensors based on weak polyelectrolyte-modified capacitive field-effect structures}, series = {Biosensors and Bioelectronics}, volume = {126}, journal = {Biosensors and Bioelectronics}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0956-5663}, doi = {10.1016/j.bios.2018.11.019}, pages = {510 -- 517}, year = {2019}, language = {en} } @article{FoersterLueth1989, author = {F{\"o}rster, Arnold and L{\"u}th, H.}, title = {Surface reactions of trimethylgallium and trimethylarsenic on silicon surfaces}, series = {Journal of Vacuum Science \& Technology B: Microelectronics and Nanometer Structures. 7 (1989), H. 4}, journal = {Journal of Vacuum Science \& Technology B: Microelectronics and Nanometer Structures. 7 (1989), H. 4}, isbn = {1071-1023}, pages = {720 -- 724}, year = {1989}, language = {en} } @inproceedings{PijanowskaRemiszewskaPederzollietal.2006, author = {Pijanowska, Dorota G. and Remiszewska, Elzbieta and Pederzolli, Cecilia and Lunelli, Lorenzo and Vendano, Michele and Canteri, Roberto and Dudzinski, Konrad and Kruk, Jerzy and Torbicz, Wladyslaw}, title = {Surface modification for microreactor fabrication}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-1480}, year = {2006}, abstract = {In this paper, methods of surface modification of different supports, i.e. glass and polymeric beads for enzyme immobilisation are described. The developed method of enzyme immobilisation is based on Schiff's base formation between the amino groups on the enzyme surface and the aldehyde groups on the chemically modified surface of the supports. The surface of silicon modified by APTS and GOPS with immobilised enzyme was characterised by atomic force microscopy (AFM), time-of-flight secondary ion mass spectroscopy (ToF-SIMS) and infrared spectroscopy (FTIR). The supports with immobilised enzyme (urease) were also tested in combination with microreactors fabricated in silicon and Perspex, operating in a flow-through system. For microreactors filled with urease immobilised on glass beads (Sigma) and on polymeric beads (PAN), a very high and stable signal (pH change) was obtained. The developed method of urease immobilisation can be stated to be very effective.}, subject = {Biosensor}, language = {en} } @article{ArreolaOberlaenderMaetzkowetal.2017, author = {Arreola, Julio and Oberl{\"a}nder, Jan and M{\"a}tzkow, M. and Keusgen, Michael and Sch{\"o}ning, Michael Josef}, title = {Surface functionalization for spore-based biosensors with organosilanes}, series = {Electrochimica Acta}, volume = {241}, journal = {Electrochimica Acta}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0013-4686}, doi = {10.1016/j.electacta.2017.04.157}, pages = {237 -- 243}, year = {2017}, abstract = {In the present work, surface functionalization of different sensor materials was studied. Organosilanes are well known to serve as coupling agent for biomolecules or cells on inorganic materials. 3-aminopropyltriethoxysilane (APTES) was used to attach microbiological spores time to an interdigitated sensor surface. The functionality and physical properties of APTES were studied on isolated sensor materials, namely silicon dioxide (SiO2) and platinum (Pt) as well as the combined material on sensor level. A predominant immobilization of spores could be demonstrated on SiO2 surfaces. Additionally, the impedance signal of APTES-functionalized biosensor chips has been investigated.}, language = {en} } @article{JakobMartinezMandaweetal.2013, author = {Jakob, Felix and Martinez, Ronny and Mandawe, John and Hellmuth, Hendrik and Siegert, Petra and Maurer, Karl-Heinz and Schwaneberg, Ulrich}, title = {Surface charge engineering of a Bacillus gibsonii subtilisin protease}, series = {Applied microbiology and biotechnology}, volume = {Vol. 97}, journal = {Applied microbiology and biotechnology}, number = {Iss. 15}, publisher = {Springer}, address = {Berlin}, issn = {1432-0614 (E-Journal); 0171-1741 (Print); 0175-7598 (Print); 0340-2118 (Print)}, pages = {6793 -- 6802}, year = {2013}, language = {en} } @article{Heuermann1996, author = {Heuermann, Holger}, title = {Sure Methods of On-Wafer Scattering Parameter Measurements with Self-Calibration Procedures}, pages = {136 -- 145}, year = {1996}, language = {en} } @article{FoersterLachenmannFridrichetal.1999, author = {F{\"o}rster, Arnold and Lachenmann, S. G. and Fridrich, I. and Sch{\"a}pers, T.}, title = {Supression of the surface-inversion layer of p-type InAs. Lachenmann, S. G.; Fridrich, I.; F{\"o}rster, A.; Sch{\"a}pers, Th.}, series = {Journal of Applied Physics. 85 (1999), H. 12}, journal = {Journal of Applied Physics. 85 (1999), H. 12}, isbn = {1089-7550}, pages = {8242 -- 8246}, year = {1999}, language = {en} } @article{ChwallekNawrathKrastinaetal.2024, author = {Chwallek, Constanze and Nawrath, Lara and Krastina, Anzelika and Bruksle, Ieva}, title = {Supportive research on sustainable entrepreneurship and business practices}, series = {SECA Sustainable Entrepreneurship for Climate Action}, journal = {SECA Sustainable Entrepreneurship for Climate Action}, number = {3}, publisher = {Lapland University of Applied Sciences Ltd}, address = {Rovaniemi}, isbn = {978-952-316-514-4 (pdf)}, issn = {2954-1654 (on-line publication)}, pages = {67 Seiten}, year = {2024}, language = {en} } @inproceedings{BeckerBergenerDelfmannetal.2011, author = {Becker, J{\"o}rg and Bergener, Philipp and Delfmann, Patrick and Eggert, Mathias and Weiss, Burkhard}, title = {Supporting Business Process Compliance in Financial Institutions - A Model-Driven Approach}, series = {Proceedings of the 10th International Conference on Wirtschaftsinformatik : 16 - 18 February 2011, Zurich, Switzerland}, booktitle = {Proceedings of the 10th International Conference on Wirtschaftsinformatik : 16 - 18 February 2011, Zurich, Switzerland}, pages = {355 -- 364}, year = {2011}, language = {en} } @inproceedings{KraftNagl2003, author = {Kraft, Bodo and Nagl, Manfred}, title = {Support of Conceptual Design in Civil Engineering by Graph-based Tools}, year = {2003}, abstract = {WS GTaD-2003 - The 1st Workshop on Graph Transformations and Design ed Grabska, E., Seite 6-7, Jagiellonian University Krakow. 2 pages}, subject = {CAD}, language = {de} } @incollection{Mertens1997, author = {Mertens, Josef}, title = {Supersonic laminar flow}, series = {New design concepts for high speed air transport. - (Courses and lectures / International Centre for Mechanical Sciences ; 366)}, booktitle = {New design concepts for high speed air transport. - (Courses and lectures / International Centre for Mechanical Sciences ; 366)}, editor = {Sobieczky, H.}, publisher = {Springer}, address = {Wien [u.a.]}, isbn = {3-2118-2815-X}, doi = {10.1007/978-3-7091-2658-5_18}, pages = {275 -- 290}, year = {1997}, abstract = {Supersonic transports are very drag sensitive. Technology to reduce drag by application of laminar flow, therefore, will be important; it is a prerequisite to achieve very long range capability. In earlier studies it was assumed that SCTs would only become possible by application of laminar flow [376]. But today, we request an SCT to be viable without application of laminar flow in order to maintain its competitiveness when laminar flow becomes available for subsonic and supersonic transports. By reducing fuel burned, laminar flow drag reduction reduces size and weight of the aircraft, or increases range capability -whereas otherwise size and weight would grow towards infinity. Transition mechanisms from laminar to turbulent state of the boundary layer flow (ALT, CFI, TSI) function as for transonic transports, but at more severe conditions: higher sweep angles, cooled surfaces; higher mode instabilities (HMI) must at least be taken into account, although they may not become important below Mach 3. Hitherto there is a worldwide lack of ground test facilities to investigate TSI at the expected cruise Mach numbers between 1.6 and 2.4; in Stuttgart, Germany one such facility -a Ludwieg tube- is still in the validation phase. A quiet Ludwieg tunnel could be a favourable choice for Europe. But it will require a new approach in designing aircraft which includes improved theoretical predictions, usage of classical wind tunnels for turbulent flow and flight tests for validation.}, language = {en} } @article{AlKaidyTippkoetter2016, author = {Al-Kaidy, Huschyar and Tippk{\"o}tter, Nils}, title = {Superparamagnetic hydrophobic particles as shell material for digital microfluidic droplets and proof-of-principle reaction assessments with immobilized laccase}, series = {Engineering in Life Sciences}, volume = {16}, journal = {Engineering in Life Sciences}, number = {3}, publisher = {Wiley-VCH}, address = {Weinheim}, doi = {10.1002/elsc.201400124}, pages = {222 -- 230}, year = {2016}, abstract = {In the field of biotechnology and molecular biology, the use of small liquid volumes has significant advantages. In particular, screening and optimization runs with acceptable amounts of expensive and hardly available catalysts, reagents, or biomolecules are feasible with microfluidic technologies. The presented new microfluidic system is based on the inclusion of small liquid volumes by a protective shell of magnetizable microparticles. Hereby, discrete aqueous microreactor drops with volumes of 1-30 μL can be formed on a simple planar surface. A digital movement and manipulation of the microreactor is performed by overlapping magnetic forces. The magnetic forces are generated by an electrical coil matrix positioned below a glass plate. With the new platform technology, several discrete reaction compartments can be moved simultaneously on one surface. Due to the magnetic fields, the reactors can even be merged to initiate reactions by mixing or positioned above surface-immobilized catalysts and then opened by magnetic force. Comparative synthesis routes of the magnetizable shell particles and superhydrophobic glass slides including their performance and stability with the reaction platform are described. The influence of diffusive mass transport during the catalyzed reaction is discussed by evaluation finite element model of the microreactor. Furthermore, a first model dye reaction of the enzyme laccase has been established.}, language = {en} } @article{FoersterLachenmannFriedrichetal.1999, author = {F{\"o}rster, Arnold and Lachenmann, S. G. and Friedrich, I. and Uhlisch, D.}, title = {Superconductor/semiconductor step junctions: the basic element for hybrid three terminal devices. Lachenmann, S. G., F{\"o}rster, A.; Friedrich, I.; Uhlisch, D.; Sch{\"a}pers, Th.; Kastalsky, A.; Golubov, A. A.}, series = {Applied Superconductivity. 6 (1999), H. 10-12}, journal = {Applied Superconductivity. 6 (1999), H. 10-12}, isbn = {0964-1807}, pages = {681 -- 688}, year = {1999}, language = {en} } @article{Grotendorst2012, author = {Grotendorst, Johannes}, title = {Supercomputer programmieren - ein besonderes Studienangebot in J{\"u}lich}, series = {Junge Wissenschaft. 27 (2012), H. 94}, journal = {Junge Wissenschaft. 27 (2012), H. 94}, publisher = {-}, isbn = {0179-8529}, pages = {12 -- 14}, year = {2012}, language = {de} } @article{Jeromin2009, author = {Jeromin, G{\"u}nter Erich}, title = {Superabsorbed alcohol dehydrogenase—a new catalyst for asymmetric reductions}, series = {Biotechnology Letters. 31 (2009), H. 11}, journal = {Biotechnology Letters. 31 (2009), H. 11}, isbn = {0141-5492}, pages = {1717 -- 1721}, year = {2009}, language = {en} } @article{XuLueMaetal.2005, author = {Xu, Jung-Ming and L{\"u}, Min and Ma, Meijie and Hellwig, Angelika}, title = {Super connectivity of line graphs}, series = {Information processing letters}, volume = {Vol. 94}, journal = {Information processing letters}, number = {Iss. 4}, issn = {1872-6119 (E-Journal); 0020-0190 (Print)}, pages = {191 -- 195}, year = {2005}, language = {en} } @article{WeemstraEilmannSassKlaassenetal.2013, author = {Weemstra, Monique and Eilmann, Britta and Sass-Klaassen, Ute G. W. and Sterck, Frank J.}, title = {Summer droughts limit tree growth across 10 temperate species on a productive forest site}, series = {Forest Ecology and Management}, volume = {2013}, journal = {Forest Ecology and Management}, number = {306}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0378-1127 (Print)}, doi = {doi:10.1016/j.foreco.2013.06.007}, pages = {142 -- 149}, year = {2013}, language = {en} } @book{TuennemannAzzab2018, author = {T{\"u}nnemann, Thomas and Azzab, Miriam}, title = {Sulla Strada : Workshop Formine 2018}, publisher = {FH Aachen, Fachbereich Architektur}, address = {Aachen}, isbn = {978-3-9820159-0-3}, publisher = {Fachhochschule Aachen}, pages = {122 Seiten}, year = {2018}, abstract = {Impressum | Inhalt 03 Thomas T{\"u}nnemann | Unterwegs...am Wege 04 Projekte 06 Annelie Wirtz | Arrivato 08 Sebastian Rupp | Tracce Passate 18 Henri Boh | Terrazze sopra il lago 28 Hermann Stuzmann | L´Ammissione {\`e} Gratuita 32 Vivienne Scheidz | IL Potere dei Simboli 34 Felix Keller | Strada Infinita 38 Moran Dorner | Catturato nel Posto 42 Kevin Osterkamp | Vortice 46 Kristina Foidle | La Vespa e il Fico 52 Simon Rix | Sognare Sulla Strada 58 Jennifer Sikora | Strada Pietrosa 66 Sabrina Fr{\"o}mbgen | Bolla di Pensiero 72 Miriam Azzab | Il Momento 78 Georg M{\"o}rke | Sentiero stretto 84 Saskia Fr{\"o}mbgen | Nuova Prospetiva 90 Frank Drehsen | A grado a grado 96 Caronlin Gr{\"u}n | Le prospettive 100 Thomas T{\"u}nnemann | Flusso nella Foresta 104 Atmosph{\"a}risches Auf die K{\"u}che | Kulinarisches 114 Carpe Diem | Fotografisches 116}, language = {de} } @article{SelmerRecksiekDierksetal.1998, author = {Selmer, Thorsten and Recksiek, Michael and Dierks, Thomas and Schmidt, Bernhard}, title = {Sulfatases, Trapping of the Sulfated Enzyme Intermediate by Substituting the Active Site Formylglycine / Recksiek, Michael ; Selmer, Thorsten ; Dierks, Thomas ; Schmidt, Bernhard ; Figura, Kurt von}, series = {Journal of Biological Chemistry. 273 (1998), H. 11}, journal = {Journal of Biological Chemistry. 273 (1998), H. 11}, isbn = {1083-351X}, pages = {6096 -- 6103}, year = {1998}, language = {en} } @article{HellwigVolkmann2004, author = {Hellwig, Angelika and Volkmann, Lutz}, title = {Sufficient conditions for λ′-optimality in graphs of diameter 2}, series = {Discrete mathematics}, volume = {Vol. 283}, journal = {Discrete mathematics}, number = {Iss. 1-3}, issn = {1872-681X (E-Journal); 0012-365X (Print)}, pages = {113 -- 120}, year = {2004}, language = {en} } @article{HellwigVolkmann2005, author = {Hellwig, Angelika and Volkmann, Lutz}, title = {Sufficient conditions for graphs to be λ′-optimal, super-edge-connected, and maximally edge-connected}, series = {Journal of graph theory}, volume = {Vol. 48}, journal = {Journal of graph theory}, number = {Iss. 3}, issn = {03649024}, pages = {228 -- 246}, year = {2005}, language = {en} } @masterthesis{Geilhausen2022, type = {Bachelor Thesis}, author = {Geilhausen, Ayleen}, title = {SUE : Restauranterlebnisse neu gestalten}, publisher = {FH Aachen}, address = {Aachen}, pages = {121 Seiten}, year = {2022}, abstract = {Gastronomiebetriebe, insbesondere diese ohne zeitgem{\"a}ße und durchdachte Konzepte wurden durch die Pandemie stark getroffen. W{\"a}hrend große Fast-Food-Ketten bereits vor der Pandemie digitale L{\"o}sungen einsetzten, stehen nun auch andere Restaurantbetreiber:innen vor der Herausforderung der Digitalisierung. Gerade die Pandemie hat an dieser Stelle verdeutlicht, welche Restaurants ihre Prozesse im Sinne der User Experience durchdacht haben und welche nicht. Die Tisch-Stuhl-Kombination der „SUE"-Serie bietet Restaurants, smarte und elegante Gastronomiem{\"o}bel, die je nach Konzept in Materialit{\"a}t und Farbe frei anpassbar sind. Wandelbarkeit, Komfort und die Integration digitaler L{\"o}sungen sind die Kernkompetenzen und Anforderungen, die das Gastronomie-Interior in Zukunft erf{\"u}llen muss. Der smarte Bistrotisch und der wandelbare Stuhl der „SUE"-Serie zeigt einen digitalisierten und anpassbaren L{\"o}sungsansatz.}, language = {de} } @book{Samm1989, author = {Samm, Doris}, title = {Suche nach skalaren und pseudoskalaren Teilchen am Kernreaktor Merlin der KFA J{\"u}lich}, pages = {109 S. : graph. Darst.}, year = {1989}, language = {de} } @article{SammFaissnerGoettlicheretal.1988, author = {Samm, Doris and Faissner, H. and G{\"o}ttlicher, P. and Matela, H.}, title = {Suche nach skalaren und pseudoskalaren Teilchen am Kernreaktor Merlin der KFA Juelich / Faissner, H.; Goettlicher, P.; Matela, H.; Samm, D.}, series = {Verhandlungen der Deutschen Physikalischen Gesellschaft. 23 (1988), H. 5}, journal = {Verhandlungen der Deutschen Physikalischen Gesellschaft. 23 (1988), H. 5}, year = {1988}, language = {de} } @article{MuellerVeggianGonoLiederetal.1975, author = {M{\"u}ller-Veggian, Mattea and Gono, Y. and Lieder, R. M. and Mayer-B{\"o}ricke, C.}, title = {Suche nach isomeren Zust{\"a}nden in ¹³⁶ Ce}, series = {Fr{\"u}hjahrstagung ... des Fachausschusses Kernphysik und Hochenergiephysik der DPG (Sektion A: Kernphysik) / Deutsche Physikalische Gesellschaft. (VI) 10 (1975)}, journal = {Fr{\"u}hjahrstagung ... des Fachausschusses Kernphysik und Hochenergiephysik der DPG (Sektion A: Kernphysik) / Deutsche Physikalische Gesellschaft. (VI) 10 (1975)}, publisher = {Physik-Verlag}, address = {Weinheim}, pages = {781}, year = {1975}, language = {de} } @article{SelmerAndreiPieriketal.2004, author = {Selmer, Thorsten and Andrei, Paula I. and Pierik, Antonio J. and Zauner, Stefan}, title = {Subunit composition of the glycyl radical enzyme p-hydroxyphenylacetate decarboxylase. A small subunit, HpdC, is essential for catalytic activity / Andrei, PI. ; Pierik, AJ. ; Zauner , S. ; Andrei-Selmer, LC. ; Selmer, T.}, series = {European Journal of Biochemistry. 271 (2004), H. 11}, journal = {European Journal of Biochemistry. 271 (2004), H. 11}, isbn = {0014-2956}, pages = {2225 -- 2230}, year = {2004}, language = {en} } @misc{BesslerMaurerMerkeletal.2009, author = {Bessler, Cornelius and Maurer, Karl-Heinz and Merkel, Marion and Siegert, Petra and Wieland, Susanne}, title = {Subtilisin from Bacillus Pumilus and detergent and cleaning agents containing said novel subtilisin [US Patentanmeldung / Internationale Patentanmeldung]}, publisher = {USPTO; WIPO}, address = {Washington; Genf}, pages = {1 -- 39}, year = {2009}, language = {en} } @misc{BesslerMaurerMerkeletal.2007, author = {Bessler, Cornelius and Maurer, Karl-Heinz and Merkel, Marion and Siegert, Petra and Wieland, Susanne}, title = {Subtilisin aus Bacillus pumilus und Wasch- und Reinigungsmittel enthaltend dieses neue Subtilisin [Offenlegungsschrift]}, publisher = {Deutsches Patent- und Markenamt / Europ{\"a}isches Patentamt / WIPO / CIPO}, address = {M{\"u}nchen / Den Hague / Genf}, pages = {1 -- 47}, year = {2007}, language = {de} }