bluuebunny/crossref_metadata_2025_split huggingface dataset:
Die Verdampfungsvorgänge an Arsenolith‐ und Claudetit‐Kristallen
Authors: Becker K. A. , Forth H.‐J. , Stranski I. N. 
Published: October 2023

AbstractEs wird eine elektrische Doppelwaage beschrieben, mit der es möglich ist, während einer freien Verdampfung gleichzeitig die Verdampfungsgeschwindigkeit und den Impuls, den die Teilchen der Unterlage, von der sie verdampfen, erteilen, zu messen. Unter Anwendung der Hertz‐Knudsenschen Gleichung läßt sich aus beiden Meßgrößen, die automatisch registriert werden, in Verbindung mit der Oberflächentemperatur ein wirksames (mittleres) Molekulargewicht der verdampfenden Teilchen bestimmen. Die Waage wurde durch Messungen an Cadmium und Zink geeicht.Bei Arsenolith und Claudetit, Modifikationen des polymorphen Arsentrioxyds As2O3, ergaben die Molekulargewichtsbestimmungen, daß Arsenolith als As4O6 verdampft, während Claudetit je nach der Oberflächenbeschaffenheit als As2O3 oder As4O6, überwiegend jedoch als Gemisch von beiden verdampft.In der Diskussion wird eine Deutung der Ergebnisse an Hand des strukturellen Gitteraufbaues der betreffenden Substanzen und der sich daraus ergebenden Möglichkeiten für den Abbau bei der Verdampfung angegeben und für Claudetit ein entsprechendes Termschema aufgestellt.
Die katalytische Wirksamkeit von photographisch entwickeltem Silber für die Reduktion von Silberkomplexen
Authors: Eggenschwiller Hermann , Jaenicke Walther 
Published: October 2023

AbstractPhotographische Emulsionen werden verschiedene Zeiten anentwickelt und dann fixiert. An den entstandenen Silberfäden wird durch eine Zweitentwicklung Silber aus löslichen Citratkomplexen abgeschieden. Die dabei gefundene Reduktionsgeschwindigkeit geht bei kurz anentwickelten Schichten (kleinen Keimen) durch ein scharfes Maximum. Dies rührt daher, daß zwar die Fadenoberfläche mit der Anentwicklung stetig zunimmt, gleichzeitig aber die Zahl der Wachstumsstellen zurückgeht. Die Wachstumsstellen sind durch vorsichtige Anoxydation des entwickelten Silbers weitgehend unwirksam zu machen. Die Ergebnisse werden zur Deutung des Silbersalz‐Diffusionsverfahrens herangezogen. Sie zeigen weiterhin, daß der geschwindigkeitsbestimmende Schritt bei der photographischen Entwicklung im allgemeinen nicht die Elektronenabgabe des Entwicklers, sondern Reduktion und Einbau des Silbers in den Keim ist.
Über Voltaspannungen von Oxid‐ und Sauerstoffchemisorptions‐Schichten auf Silber
Authors: Göhr H. , Reinhard H. 
Published: October 2023

AbstractAn Silber mit O‐Chemisorptions‐[(Ag)xO‐], Ag2O‐ und AgO‐Bedeckung werden die Voltaspannungen gegen cine Pt‐Bezugsoberfläche (B) nach der Kondensatormethode [2,3,4] gemessen. Die stationären Endwerte
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sind spezifisch von der Natur der Ag‐Oberflächenschicht, nicht aber von der Art ihrer Herstellung abhängig. Sie sind um gekehrt abgestuft wie die entsprechenden gemessenen Ruhe‐Bezugsspannungen in 1 n KOH
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Aus dem ersten Wert UH,r = 0,06 Volt wird ferner die differentielle Bildungsaffinität einer O‐Chemisorptionsschicht auf Ag bei praktisch vollständiger O‐Bedeckung abgeschätzt zu etwa 17 kcal je Mol O. Während der nicht‐stationären ‐ durch Spuren von H2O katalytisch beschleunigten ‐ Bildung von O‐Chemisorptions‐ und Ag2O‐Schichten auf Ag durch O2‐Gas ändert sich die Voltaspannung meist logarithmisch mit der Einwirkungsdauer des O2.Ag2O‐ und Ago‐Schichten bleiben interessanterweise auch nach stundenlangem Erhitzen bis auf 400°C, trotz hoher Zersetzungsaffinitäten besonders des Ago, teilweise erhalten.
Polarisation der Elektronenbanden von Aromaten 3. Mitteilung: Chinolin, Isochinolin, Indol
Authors: Zimmermann Herbert , Joop Normann 
Published: October 2023

AbstractDie Absorptions‐, Fluoreszenz‐ und Polarisationsspektren von Chinolin, Chinolin‐Perchlorat, Isochinolin, Isochinolin‐Perchlorat und von Indol wurden im nahen Ultraviolett gemessen und mit den Spektren des Naphthalins verglichen. Die Absorptionsspektren aller Verbindungen gehören zum gleichen Typ. Die Absorptionsbanden wurden mit Hilfe der Polarisationsspektren klassifiziert. Isochinolin besitzt außer den allen Verbindungen gemeinsamen Absorptionsbanden zwei weitere Elektronenübergänge. Es ließ sich wahrscheinlich machen, daß bei Indol die Fluoreszenz aus zwei dicht benachbarten Elektronenzuständen erfolgt.
Experimentelle und theoretische Untersuchungen der Mehrkomponenten‐Diffusion mit stöchiometrisch gekoppelten Stoffstromdichten II. Quaternäre Gasdiffusion
Authors: Hesse D. 
Published: October 2023

AbstractDie Maxwell‐Stefanschen Diffusionsgleichungen sagen voraus, daß bei einer durch Gasgrenzschicht‐Diffusion bestimmten chemischen Umsetzung vom Typ v1R1 + v2R2 ⇄ V3R3 ein den Reaktionsteilnehmern beigemischtes Inertgas im stationären Zustand im allgemeinen einen Konzentrationsgradienten aufweisen muß Am Beispiel der diffusionsbestimmten C2H4‐Hydrierung mit CO2 als Inertgas wird diese Vorhersage experimentell bestätigt. Außerdem wird der Inertgasgradient für die Fälle berechnet, in denen die C2H4‐Hydrierung mit. He bzw SF6 als Inertgas durchgeführt wird. Die grundsätzliche Bedeutung dieses “Mehrkomponenten‐Effektes” für die Chemische Reaktionstechnik, die Gastrennung und das Verständnis des Stofftransportes in biologischen Systemen wird kurz diskutiert.
Construction of multiplexed transcriptome NGS libraries of microdissected tissue samples based on combinational DNA barcode microbeads
Authors: Dang Kaitong , Zhao Yue , Ye Kaiqiang , Guo Yunxia , Wang Wenjia , Ge Qinyu , Zhao Xiangwei 
Published: October 2023

AbstractThe combination of single‐cell RNA sequencing and microdissection techniques that preserves positional information has become a major tool for spatial transcriptome analyses. However, high costs and time requirements, especially for experiments at the single cell scale, make it challenging for this approach to meet the demand for increased throughput. Therefore, we proposed combinational DNA barcode (CDB)‐seq as a medium‐throughput, multiplexed approach combining Smart‐3SEQ and CDB magnetic microbeads for transcriptome analyses of microdissected tissue samples. We conducted a comprehensive comparison of conditions for CDB microbead preparation and related factors and then applied CDB‐seq to RNA extracts, fresh frozen (FF) and formalin‐fixed paraffin‐embedded (FFPE) mouse brain tissue samples. CDB‐seq transcriptomic profiles of tens of microdissected samples could be obtained in a simple, cost‐effective way, providing a promising method for future spatial transcriptomics.
Poncet's disease: An uncommon presentation of a common disease in Sudan
Authors: Mohamedali Abdalla Mohamed Abdalla , Sayedahmed Ahmed Mahmoud Sayed , Elmustafa Fatima Abdelmoneim Ahmed , Ebrahim Abdelrahman Abdelgader Mohammed Alkhair , Mahgoub Mahmoud Saeed Saad , Mohamedkheir Nihad Abdelghayoum Abbass , Ali Ahmed Mohamed Abdalla Mohamed 
Published: October 2023

Key Clinical MessagePoncet's disease is an acute onset reactive polyarthritis associated with tuberculosis infection. Although uncommon, the diagnosis should be considered among patients presenting with symmetrical polyarthritis in tuberculosis‐endemic regions.AbstractThis is a case report of Poncet's disease presenting as bilateral knee and wrist pain associated with swelling. Joint x‐rays and immunological assays were normal. A chest x‐ray and Gene‐Xpert diagnosed tuberculosis. A complete resolution of symptoms was attained following the completion of antituberculous therapy regimen.
Synthesis of Copper Nanosheets Coatings onto Glass and Glass/CrSe2 Substrates Using Ion Coating Technique for Terahertz Technology
Authors: Alfhaid Latifah Hamad Khalid , Qasrawi Atef Fayez 
Published: October 2023

AbstractIn this study, copper (Cu) nanosheets are utilized as semitransparent conducting optical windows for the fabrication of terahertz band filters based on chromium selenide (CrSe2). The deposition of CrSe2 thin films onto glass substrates is performed via the thermal evaporation technique followed by the application of Cu nanosheets using the ion coating technique. The interaction between Cu windows and CrSe2 films resulted in a slight widening of the energy bandgap and a remarkable reduction in the Urbach tail states from 2.24 to 1.23 eV. Furthermore, the coating of CrSe2 with Cu optical windows led to a decrease in the dielectric constant values of more than 35% and an increase in the terahertz cutoff frequency by more than 70%. The application of Cu windows increased the cutoff frequency to 23 THz. The correlation between electrical and optical conduction in the terahertz band filters is investigated through the utilization of Drude–Lorentz models, revealing that although Cu windows reduced the free carrier density and conductivity, they enhanced drift mobility, resulting in more efficient terahertz filter properties. The calculated optical constants and optical conductivity parameters provided evidence of the suitability of Cu‐coated CrSe2 films for applications in terahertz technology.
Preoperative sST2 levels relate to myocardial remodeling and cardiac function improvement after cardiac valve surgery
Authors: Zhu Yan , Pei Lipeng , Li Ning , Zhu Yan 
Published: October 2023

AbstractAimsWe aim to investigate the correlation between preoperative soluble suppression of tumourigenicity 2 (sST2) and postoperative myocardial remodelling and cardiac function in patients with valvular heart disease.Methods and resultsThis retrospective study included patients who underwent heart valve surgery at the General Hospital of Northern Theatre Command from July 2019 to June 2020. Preoperative, early postoperative, and 1‐month postoperative cardiac ultrasound data were collected. Multivariable linear regression was used to analyse the factors associated with preoperative sST2 and postoperative cardiac function parameters. A receiver operator characteristic curve analysis was used to analyse the predictive value of sST2 for left ventricular ejection fraction (LVEF) reduction at 1 month after surgery. This study included 156 patients. Left ventricular end‐systolic volume (b = 0.125, P = 0.004), atrial fibrillation (b = 7.933, P = 0.003), and coronary artery disease (b = 5.826, P = 0.043) were correlated with the preoperative sST2 levels. Preoperative sST2 was independently associated with early postoperative left ventricular end‐systolic volume (b = −0.136, P = 0.035), left ventricular end‐diastolic volume (b = −0.225, P = 0.036), and LVEF (b = 0.056, P = 0.008). At 1 month after surgery, LVEF (r = −0.234, P = 0.023) and reduction in LVEF (r = −0.316, P = 0.002) were negatively correlated with preoperative sST2. The area under the receiver operator characteristic curve of preoperative sST2 in predicting LVEF reduction at 1 month was 0.646, with a sensitivity of 0.357 and a specificity of 0.918.ConclusionsPreoperative sST2 levels are related to early postoperative myocardial remodelling and have a predictive value for the improvement of cardiac function 1 month after surgery.
Free‐standing δ‐MnO2 atomic sheets
Authors: Chahal Sumit , Sahu Tumesh Kumar , Kar Subhasmita , Ranjan Harsh , Ray Soumya Jyoti , Kumar Prashant 
Published: October 2023

Abstractδ‐Manganese dioxide (δ‐MnO2) is a 2D material which possesses distinct properties and features due to its unique atomic structure and has already been utilized in numerous disciplines recently, especially in the field of magnetism, energy storage, magnetic resonance imaging, biocatalysts, and fluorescence sensing. Keeping an eye on the huge potential of this 2D material, we report our recent discovery of single‐step synthesis of MnO2 nanosheets via bottom‐up laser crystallization (of aqueous KMnO4 solution) and top‐down sonochemical exfoliation of bulk MnO2 powder. The successful synthesis of δ‐MnO2 nanosheets has been proved through the observation of characteristic Raman peaks at 173 and 634 cm−1 and characteristic X‐ray diffraction peaks. The optical band gap was found to be 1.64 and 1.45 eV for both methods. We also demonstrated that 2D‐MnO2 is a prominent candidate material for ammonia sensing and strain sensing. δ‐MnO2 powder, when employed as cathode material in Li‐ion batteries, results in a stable voltage of ˜0.5 V and in contrast, gives ˜1 V when used in Li‐S batteries and the attained voltage is stable even for >5 h. New methods of synthesis of δ‐MnO2 and its hybrids with graphene will lead to future generation devices, it is expected.
Energy analysis of the absorption cooling cycle from the waste heat of the hospital sterilization unit
Authors: Şahin Mehmet Erhan , Elbir Ahmet 
Published: October 2023

AbstractAutoclave devices are used to perform high‐temperature sterilization processes under pressure. Autoclaves can be integrated with an absorption refrigeration cycle to utilize the waste heat generated at high temperature during the process. Today, many studies are carried out on the evaluation of energy resources. In this study, it is designed to obtain a cooling load by adding an integrated sub‐cycle to the waste steam heat of the autoclave device in a sterilization unit. In the lower cycle, the ammonia/water absorption refrigeration cycle is used. According to the energy analysis; With the condition that the cooling temperature is 7°C, the generator temperature of 95°C and a cooling load of 130.9 W occurred with 531.7 W of waste heat received by the absorption cooling system. Accordingly, an efficiency of COP 0.246 was obtained. The energy analysis of the absorption refrigeration cycle can improve the energy efficiency of the autoclave and save energy. In addition, the obtained cooling load will be preserved in medical supplies that need to be kept cold.
The effect of lyophilized dried cornelian cherry (Cornus mas L.) intake on anthropometric and biochemical parameters in women with insulin resistance: A randomized controlled trial
Authors: Celık Zehra Margot , Sargin Mehmet , Tamer Havva Gonca , Gunes Fatma Esra 
Published: October 2023

AbstractThe aim of this study was to determine the effect on the anthropometric and biochemical parameters for women with insulin resistance when lyophilized dried cornelian cherry (Cornus mas L., CM) was added to medical nutrition therapy (MNT). The study was conducted with 84 women aged 18–45, who had been diagnosed with insulin resistance. Participants were randomized into four groups: MNT + 20 g lyophilized dried CM group (DCm, n = 22), MNT group (D, n = 21), only 20 g lyophilized dried CM group (Cm, n = 21), and the control group (C, n = 20). All participants were followed for 12 weeks. While pre‐ and post‐intervention biochemical parameters were recorded from patient files, anthropometric measurements and food consumption records were taken every 15 days. Pre‐intervention groups were homogeneously distributed. Post‐intervention, among the groups, all anthropometric measurements were similar between the DCm and D, while the percentage of decrease in insulin resistance‐related parameters was approximately two times greater in DCm than in D (p < .05). When the Cm and C were compared, it was found that all post‐intervention anthropometric measurements were similar, but the percentage of decrease in fasting blood glucose, fasting insulin, and HOMA‐IR (Homeostasis Model Assessment‐Insulin Resistance) values were greater in C (p < .05). In this study, it was concluded that CM consumption resulted with a decrease in insulin resistance‐related biochemical parameters independent of body weight change. Nevertheless, MNT has positive effects on women with insulin resistance, and adding lyophilized dried CM to MNT improves insulin resistance‐related parameters and may be beneficial for preventing the development of diabetes.
Attenuative effects of collagen peptide from milkfish (Chanos chanos) scales on ovariectomy‐induced osteoporosis
Authors: Chuu Jiunn‐Jye , Lu Jeng‐Wei , Chang Hung‐Ju , Chu You‐Hsiang , Peng Yi‐Jen , Ho Yi‐Jung , Shen Pei‐Hung , Cheng Yu‐Shuan , Cheng Chia‐Hui , Liu Yi‐Chien , Wang Chih‐Chien 
Published: October 2023

AbstractOsteoporosis is characterized by low bone mass, bone microarchitecture disruption, and collagen loss, leading to increased fracture risk. In the current study, collagen peptides were extracted from milkfish scales (MS) to develop potential therapeutic candidates for osteoporosis. MS was used to synthesize a crude extract of fish scales (FS), collagen liquid (COL), and hydroxyapatite powder (HA). COL samples were further categorized according to the peptide size of total COL (0.1 mg/mL), COL < 1 kDa (0.1 mg/mL), COL: 1–10 kDa (0.1 mg/mL), and COL > 10 kDa (0.1 mg/mL) to determine it. Semi‐quantitative reverse transcription polymerase chain reaction (sqRT‐PCR) and immunofluorescence labeling were used to assess the expression levels of specific mRNA and proteins in vitro. For in vivo studies, mice ovariectomy (OVX)‐induced postmenopausal osteoporosis were developed, while the sham surgery (Sham) group was treated as a control. Collagen peptides (CP) from MS inhibited osteoclast differentiation in RAW264.7 cells following an insult with nuclear factor kappa‐B ligand (RANKL). CP also enhanced osteoblast proliferation in MG‐63 cells, possibly through downregulating NFATc1 and TRAP mRNA expression and upregulating ALP and OPG mRNA levels. Furthermore, COL1 kDa also inhibited bone density loss in osteoporotic mice. Taken together, CP may reduce RANKL‐induced osteoclast activity while promoting osteoblast synthesis, and therefore may act as a potential therapeutic agent for the prevention and control of osteoporosis.
Development of a 2nd Generation Process for 3‐Ethyl‐4‐Hydroxy‐5‐Methylbenzonitrile – A Key Building Block of S1P1 Receptor Modulator Cenerimod – through a Non‐Classical Nitrile Formation Using Hydroxylamine‐O‐sulfonic Acid (HOSA)
Authors: Schäfer Gabriel , Fleischer Tony 
Published: October 2023

AbstractA new, improved 2nd generation route for the synthesis of 3‐ethyl‐4‐hydroxy‐5‐methylbenzonitrile has been developed. The original route started from 2‐ethyl‐6‐methylaniline, which was converted by a classical sequence of para‐bromination, cyanation and Sandmeyer hydroxylation into the desired phenol. This route was used on multi‐kg scale and delivered the product with the desired purity. However, the route was not ideal, as it featured safety critical steps (cyanation), employed undesirable solvents (DMF), included laborious workup and isolation procedures, and suffered from a low overall yield (40–45 %) and suboptimal green metrics (PMI: 210). We envisioned a new, non‐classical approach to the product by introducing the nitrile through a para‐selective formylation, followed by transformation of the intermediate aldehyde into the nitrile with hydroxylamine‐O‐sulfonic acid (HOSA). The new sequence of Sandmeyer hydroxylation, Duff formylation and HOSA‐promoted nitrile formation was thoroughly optimized and finally scaled up to 400 g. This novel 3‐step sequence delivered 3‐ethyl‐4‐hydroxy‐5‐methylbenzonitrile in 69 % overall yield with excellent purity (99.3 % a/a) and a vastly improved PMI of 81.
Perinatal outcomes following uterine rupture during a trial of labor after cesarean: A 12‐year single‐center experience
Authors: Amikam Uri , Hochberg Alyssa , Segal Roy , Abramov Shani , Lavie Anat , Yogev Yariv , Hiersch Liran 
Published: October 2023

AbstractObjectiveTo determine perinatal outcomes following uterine rupture during a trial of labor after one previous cesarean delivery (CD) at term.MethodsA retrospective single‐center study examining perinatal outcomes in women with term singleton pregnancies with one prior CD, who underwent a trial of labor after cesarean (TOLAC) and were diagnosed with uterine rupture, between 2011 and 2022. The primary outcome was a composite maternal outcome, and the secondary outcome was a composite neonatal outcome. Additionally, we compared perinatal outcomes between patients receiving oxytocin during labor with those who did not.ResultsOverall, 6873 women attempted a TOLAC, and 116 were diagnosed with uterine rupture. Among them, 63 (54.3%) met the inclusion criteria, and 18 (28%) had the maternal composite outcome, with no cases of maternal death. Sixteen cases (25.4%) had the composite neonatal outcome, with one case (1.6%) of perinatal death. No differences were noted between women receiving oxytocin and those not receiving oxytocin in the rates of maternal composite (35.7% vs 26.5%, P = 0.502, respectively) or neonatal composite outcomes (21.4% vs 26.5%, P = 0.699).ConclusionUterine rupture during a TOLAC entails increased risk for myriad adverse outcomes for the mother and neonate, though possibly more favorable than previously described. Oxytocin use does not affect these risks.
Biomechanical analysis of tendon regeneration capacity of Iberian ribbed newts following transection injury: Comparison to a mouse model
Authors: Sato Fumiya , Masuda Yu , Suzuki Daisuke , Hayashi Toshinori , Iwasaki Tomohito , Kim Jeonghyun , Matsumoto Takeo , Maeda Eijiro 
Published: October 2023

AbstractAdult mammals are known for their poor ability to regenerate tissues, including tendons. On the other hand, urodeles have become an important model in regenerative studies for their remarkable ability to regenerate various body parts and organs throughout life, such as limbs, retinas, or even the brain. However, little is known about their capacity to regenerate injured tendons. If newts can also repair tendons without scar formation, they may be a suitable animal model for tendon regeneration studies in other adult vertebrates. Therefore, the present study used Iberian ribbed newts to characterize mechanical and structural regeneration of tendons following transection, using tensile tests and multiphoton microscopy. A digital flexor tendon in a hindlimb was transected either partially or completely, and regenerated tendon was examined 6 and 12 weeks after the operation. Tensile strength of regenerated tendons was significantly less than normal at 6 weeks, but was remarkably recovered at 12 weeks, reaching levels comparable to those of uninjured tendons. On the other hand, mouse tendons demonstrated poor recovery of strength even after 12 weeks. Multiphoton microscopy revealed that tendon‐like collagenous tissue bridges residual tendon stubs in newts, but disorganized scar‐like tissue filled the injured location in mice. These findings highlight the remarkable capacity of newts to recover from tendon injury and confirm the utility of newts as a model to study tendon regeneration.