@article{AkimbekovDigelTastambeketal.2022,
  author    = {Akimbekov, Nuraly S. and Digel, Ilya and Tastambek, Kuanysh T. and Marat, Adel K. and Turaliyeva, Moldir A. and Kaiyrmanova, Gulzhan K.},
  title     = {Biotechnology of Microorganisms from Coal Environments: From Environmental Remediation to Energy Production},
  series = {Biology},
  volume    = {11},
  journal   = {Biology},
  number    = {9},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2079-7737},
  doi       = {10.3390/biology11091306},
  pages     = {47 Seiten},
  year      = {2022},
  abstract  = {It was generally believed that coal sources are not favorable as live-in habitats for microorganisms due to their recalcitrant chemical nature and negligible decomposition. However, accumulating evidence has revealed the presence of diverse microbial groups in coal environments and their significant metabolic role in coal biogeochemical dynamics and ecosystem functioning. The high oxygen content, organic fractions, and lignin-like structures of lower-rank coals may provide effective means for microbial attack, still representing a greatly unexplored frontier in microbiology. Coal degradation/conversion technology by native bacterial and fungal species has great potential in agricultural development, chemical industry production, and environmental rehabilitation. Furthermore, native microalgal species can offer a sustainable energy source and an excellent bioremediation strategy applicable to coal spill/seam waters. Additionally, the measures of the fate of the microbial community would serve as an indicator of restoration progress on post-coal-mining sites. This review puts forward a comprehensive vision of coal biodegradation and bioprocessing by microorganisms native to coal environments for determining their biotechnological potential and possible applications.},
  language  = {en}
}
@incollection{AkimbekovDigelSherelkhanetal.2022,
  author    = {Akimbekov, Nuraly S. and Digel, Ilya and Sherelkhan, Dinara K. and Razzaque, Mohammed S.},
  title     = {Vitamin D and Phosphate Interactions in Health and Disease},
  series = {Phosphate Metabolism},
  booktitle = {Phosphate Metabolism},
  publisher = {Springer},
  address   = {Cham},
  isbn      = {978-3-030-91621-3},
  doi       = {10.1007/978-3-030-91623-7_5},
  pages     = {37 -- 46},
  year      = {2022},
  abstract  = {Vitamin D plays an essential role in calcium and inorganic phosphate (Pi) homeostasis, maintaining their optimal levels to assure adequate bone mineralization. Vitamin D, as calcitriol (1,25(OH)2D), not only increases intestinal calcium and phosphate absorption but also facilitates their renal reabsorption, leading to elevated serum calcium and phosphate levels. The interaction of 1,25(OH)2D with its receptor (VDR) increases the efficiency of intestinal absorption of calcium to 30-40\% and phosphate to nearly 80\%. Serum phosphate levels can also influence 1,25 (OH)2D and fibroblast growth factor 23 (FGF23) levels, i.e., higher phosphate concentrations suppress vitamin D activation and stimulate parathyroid hormone (PTH) release, while a high FGF23 serum level leads to reduced vitamin D synthesis. In the vitamin D-deficient state, the intestinal calcium absorption decreases and the secretion of PTH increases, which in turn causes the stimulation of 1,25(OH)2D production, resulting in excessive urinary phosphate loss. Maintenance of phosphate homeostasis is essential as hyperphosphatemia is a risk factor of cardiovascular calcification, chronic kidney diseases (CKD), and premature aging, while hypophosphatemia is usually associated with rickets and osteomalacia. This chapter elaborates on the possible interactions between vitamin D and phosphate in health and disease.},
  language  = {en}
}
@incollection{AkimbekovDigelRazzaque2022,
  author    = {Akimbekov, Nuraly S. and Digel, Ilya and Razzaque, Mohammed S.},
  title     = {Role of vitamins in maintaining structure and function of intestinal microbiome},
  series = {Comprehensive Gut Microbiota},
  booktitle = {Comprehensive Gut Microbiota},
  publisher = {Elsevier},
  address   = {Amsterdam},
  isbn      = {978-0-12-822036-8},
  doi       = {10.1016/B978-0-12-819265-8.00043-7},
  pages     = {320 -- 334},
  year      = {2022},
  abstract  = {The recent advances in microbiology have shed light on understanding the role of vitamins beyond the nutritional range. Vitamins are critical in contributing to healthy biodiversity and maintaining the proper function of gut microbiota. The sharing of vitamins among bacterial populations promotes stability in community composition and diversity; however, this balance becomes disturbed in various pathologies. Here, we overview and analyze the ability of different vitamins to selectively and specifically induce changes in the intestinal microbial community. Some schemes and regularities become visible, which may provide new insights and avenues for therapeutic management and functional optimization of the gut microbiota.},
  language  = {en}
}
@article{AbbasBalcBremenetal.2022,
  author    = {Abbas, Karim and Balc, Nicolae and Bremen, Sebastian and Skupin, Marco},
  title     = {Crystallization and aging behavior of polyetheretherketone PEEK within rapid tooling and rubber molding},
  series = {Journal of Manufacturing and Materials Processing},
  volume    = {6},
  journal   = {Journal of Manufacturing and Materials Processing},
  number    = {5},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2504-4494},
  doi       = {10.3390/jmmp6050093},
  pages     = {1 -- 12},
  year      = {2022},
  abstract  = {In times of short product life cycles, additive manufacturing and rapid tooling are important methods to make tool development and manufacturing more efficient. High-performance polymers are the key to mold production for prototypes and small series. However, the high temperatures during vulcanization injection molding cause thermal aging and can impair service life. The extent to which the thermal stress over the entire process chain stresses the material and whether it leads to irreversible material aging is evaluated. To this end, a mold made of PEEK is fabricated using fused filament fabrication and examined for its potential application. The mold is heated to 200 ◦C, filled with rubber, and cured. A differential scanning calorimetry analysis of each process step illustrates the crystallization behavior and first indicates the material resistance. It shows distinct cold crystallization regions at a build chamber temperature of 90 ◦C. At an ambient temperature above Tg, crystallization of 30\% is achieved, and cold crystallization no longer occurs. Additional tensile tests show a decrease in tensile strength after ten days of thermal aging. The steady decrease in recrystallization temperature indicates degradation of the additives. However, the tensile tests reveal steady embrittlement of the material due to increasing crosslinking.},
  language  = {en}
}
@misc{OPUS4-10302,
  title     = {Dimensionen 1-2022: Magazin der FH Aachen University of Applied Sciences - Auf dem Weg zur Nachhaltigkeit},
  address   = {Aachen},
  organization    = {Fachhochschule Aachen},
  pages     = {62 Seiten},
  year      = {2022},
  abstract  = {Inhaltsverzeichnis: 06| "WIR" werden nachhaltig 10| Der Kraft-Stoff aus dem Bioreaktor 14| Energieverbrauch des Campus J{\"u}lich optimieren 16| „Eine große Hilfestellung f{\"u}r Flutopfer" 20| Von der ersten Skizze zu den Blumen in der Vase 22|Wie schl{\"a}ft es sich im All, Herr Maurer? 24| Expedition Arktis 28| Eine Frage, zwei Antworten 30| Der sch{\"o}nste Arbeitsplatz der Welt 32| Im Einklang 36| Ein Vorgeschmack auf die echte Arbeitswelt 38| Den R{\"a}tseln des Universums auf der Spur 40| Auf Umwegen in die Spitzenforschung 42| Klappe FH Aachen, die erste … Kamera l{\"a}uft! 44| Auszeit 46| „Fotografie {\"o}ffnet T{\"u}ren zu Parallelwelten" 50| Es gibt viel zu tun 52| Durch-Blick 54| Weichen stellen f{\"u}r einen ganz besonderen Job 58| Souta, Iver und der Wind 60| Die FH Aachen ist systemakkreditiert 61| Der Vulkan 62| Kopfnuss, Impressum},
  language  = {de}
}
@misc{OPUS4-10711,
  title     = {Dimensionen 2-2022: Magazin der FH Aachen University of Applied Sciences - Werkstatt Zukunft},
  address   = {Aachen},
  organization    = {Fachhochschule Aachen},
  pages     = {63 Seiten},
  year      = {2022},
  abstract  = {Werkstatt Zukunft - Die FH Aachen versteht sich als interdisziplin{\"a}re Ideenschmiede 04| Aufbruch ins Ungewisse 08| Mit Altpapierresten aus der Energiekrise 14| Mehr Power f{\"u}r die Energiewende 20| Pfadfinder im Datendschungel 23| Ein historischer Schritt 24| Gemeinsam vorw{\"a}rts 30| F{\"u}r eine gerechte Hochschule. F{\"u}r alle. 32| Der gr{\"u}ne Reiter 34| Vom Flugsimulator bis zum Roboter 36| Unsere Azubis sind top! 38| WIR sind ein Sportteam! 40| Effizient und sicher: Der Bergbau der Zukunft 46| Mit Sonnenlicht zu sauberem Trinkwasser 48| Neue Brandmeldeanlage f{\"u}r den Dom zu Aachen 50| Auszeichnung f{\"u}r außergew{\"o}hnliches Engagement 52| Neue Ideen f{\"u}r Schloss Lichtenburg 55| Kopfnuss 56| One-Man-Show 60| K{\"a}mpferin f{\"u}r das Sch{\"o}ne 61| Ein charmanter Diplomat 62| Teamplay f{\"u}r die Zukunft 63| Impressum},
  language  = {de}
}