bluuebunny/crossref_metadata_2025_split huggingface dataset:
Large amplitude oscillatory shear (LAOS) measurements as a promising tool to predict electrospinnability of pectin solutions
Authors: Ozmen Duygu , Akinalan Balik Busra , Argin Sanem , Yildirim‐Mavis Cigdem , Toker Omer Said 
Published: September 2021

AbstractThe response of the polymer solution to % strain is critical since the polymer solution is drawn by the electrical field during electrospinning process. To date, all studies relating electrospinning to rheological parameters have been conducted in the linear region where small strain values are applied to the polymer solutions. This is the first study attempting to correlate the behavior of the solutions in the nonlinear region with smooth nanofiber formation. For this aim, fiber forming solutions were prepared with pectin at different concentrations (3%, 4%, 5%, and 6%) and PEO with different molecular weights (600, 1000, and 2000 kDa). Deformation was applied in the range of 0.05% and 500% and normalized Lissajous curves were obtained. Both elastic and viscous curves confirmed one another, suggesting a profound contribution of PEO 2000 to the elasticity of the polymer solution at all pectin concentrations even at large strain values. This finding might explain why smooth fibers can only be achieved with PEO 2000 while only beaded fibers were formed with PEO 600 and PEO 1000. The results suggest that LAOS measurements might be used as a promising tool to predict whether a polymer solution can be electrospun into smooth nanofibers.
Integration between the cranial boundaries of the nasopharynx and the upper cervical vertebrae in Homo and Pan
Authors: Villamil Catalina Isabel , Santiago‐Nazario Alejandro 
Published: September 2021

AbstractThe nasopharynx is an important anatomical structure involved in respiration. Its bony boundaries, including the basicranium and upper cervical vertebrae, may be subject to selective pressures and constraints related to respiratory function. Here, we investigate phenotypic integration, or covariation, between the face, the basicranial boundaries of the nasopharynx, and the atlas and axis to understand constraints affecting these structures. We collected three‐dimensional coordinate data from a sample of 80 humans and 44 chimpanzees, and used two‐block partial least squares to assess RV (a multivariate generalization of Pearson's r2), rPLS, the covariance ratio, and effect size for integration among structures. We find that integration is significant among some of these structures, and that integration between the basicranial nasopharynx and vertebrae and between the face and vertebrae is likely independent. We also find divergences in the pattern of integration between humans and chimpanzees suggesting greater constraints among the human face and nasopharynx, which we suggest are linked to divergent developmental trajectories in the two taxa. Evolutionary changes in human basicranial anatomy, coupled with human‐like developmental trajectories, may have required that the face grow to compensate any variation in nasopharyngeal structure. However, we were unable to determine whether the nasopharynx or the face is more strongly integrated with the vertebrae, and therefore whether respiration or biomechanical considerations related to positional behavior may be more strongly tied to vertebral evolution. Future work should focus on greater sample sizes, soft tissue structures, and more diverse taxa to further clarify these findings.
A review of the rock art of Palau, Micronesia in local and regional contexts
Authors: LISTON JOLIE , HOERMAN RACHEL , SASAO MACSTYL O. , KLOULUBAK SYLVIA 
Published: September 2021

AbstractThe style and iconography of the ten rock art sites known so far in Palau, Micronesia, including two newly discovered rock painting sites, are described and linked to their geographic locations, archaeological associations, oral traditions and local iconographies. Following a brief review of rock art in Micronesia and parts of Island Southeast Asia and New Guinea, Palau's eight rock painting sites and two rock engraving sites are regionally contextualized. We found no apparent relationships with rock art elsewhere in Micronesia but stylistic similarities with eastern Indonesia and West Papua painting traditions are clear. This may suggest the Palau paintings were created early in the archipelago's cultural sequence. Palau's rock paintings are clearly within the Austronesian painting tradition while the single well‐recorded carving site does not conform with the Austronesian engraving style. Palau's rock art is also closely aligned to the Oceanic Rock Art Tradition.
Einfluss exzentrischer Belastungen auf das Tragverhalten von Einzelfundamenten
Authors: Ungermann Jan , Schmidt Philipp , Hegger Josef 
Published: September 2021

AbstractWährend das Durchstanzen zentrisch belasteter Einzelfundamente bereits häufig untersucht wurde, liegen zu den in der Praxis vorwiegend auftretenden Fundamenten mit exzentrischen Belastungen nur wenige Untersuchungen vor. Um diese Wissenslücke zu schließen, wurden vierzehn exzentrisch belastete und vier zentrisch belastete Durchstanzversuche unter Einsatz eines neu entwickelten Hydrauliksystems durchgeführt. Die einaxialen und zweiaxialen Lastausmitten wurden systematisch abgestuft, um die Auswirkungen der Lastexzentrizität in Verbindung mit weiteren Einflüssen wie unterschiedlicher Schubschlankheit, Stützengeometrie und ‐größe zu analysieren. Die experimentellen Untersuchungen an Stahlbetonfundamenten im Realmaßstab belegen den signifikanten Einfluss der Lastexzentrizitäten sowohl auf die Durchstanztragfähigkeit als auch auf das Tragverhalten. Infolge der exzentrischen Belastungen nehmen die Verformungen und die Änderung der Plattendicke deutlich zu und führen sowohl zu einer Verschiebung der Rissbildung in die höherbelastete Fundamenthälfte als auch zu einer unvollständigen Ausbildung des Durchstanzkegels. Der abschließende Vergleich der Versuchsergebnisse mit den Normansätzen nach EC2+NA(D) und aktuellem Entwurf des EC2 der nächsten Generation bestätigt einen höheren Einfluss der Lastexzentrizität bei größerer Schlankheit und lässt erkennen, dass die Bewertung des β‐Faktors nicht unabhängig vom Ausgangspunkt des Grundwerts für das zentrische Durchstanzen erfolgen kann.
Synthesis and Anti‐Proliferation Activity Evaluation of Novel 2‐Chloroquinazoline as Potential EGFR‐TK Inhibitors
Authors: Zheng Quan , Xu Xuan‐Bo , Jin Hao , Zhang Wen , Rao Guo‐Wu 
Published: September 2021

AbstractA novel series of 2‐chloroquinazoline derivatives had been synthesized and their anti‐proliferation activities against the four EGFR high‐expressing cells A549, NCI‐H1975, AGS and HepG2 cell lines were evaluated. The preliminary SAR study of the scaffold of new compounds showed that the compounds with a chlorine substituent on R3 had a better anti‐proliferation activity than those substituted by hydrogen atom or vinyl group. Among them, 2‐chloro‐N‐[2‐chloro‐4‐(3‐chloro‐4‐fluoroanilino)quinazolin‐6‐yl]acetamide (10b) had the best activity, and the corresponding IC50 were 3.68, 10.06, 1.73 and 2.04 μM, respectively. And compound 10b had better or equivalent activity against four cell lines than Gefitinib. The activity of the compound 10b on the EGFR enzyme was subsequently tested. The Wound Healing of A549, AGS and HepG2 cells by this compound showed that the compound can inhibit the migration of cancer cells. Finally, the action channel of the compound 10b was supported by western blotting experiments. It provides useful information for the design of EGFR‐TK inhibitors.
Impaired glucose tolerance with neurological manifestations in insulinoma
Authors: Villanueva‐Rodríguez Luis Geraldine , Reza‐Albarrán Alfredo Adolfo , Cárdenas Enrique , Ángeles Arturo , Lester Jacobo 
Published: September 2021

AbstractInsulinoma may have an atypical presentation and it should be suspected in patients with neurological manifestations in spite of an atypical insulin and proinsulin levels associated with hypoglycemia. Fast test is an important tool to reach the diagnosis.
Unusual presentation of a five‐month‐old boy with NaPi2a homozygous mutation without hyperphosphaturia: Case report and review of the literature
Authors: Yakubov Renata , Ayman Asaly , Klein Kremer Adi , Bael An , van den Akker Machiel 
Published: September 2021

AbstractDeletions of the NaPi2a gene and mutations in the SLC34A gene should be considered in patients with atypical presentation, without phosphaturia, with mild hypo to normal phosphatemia, and nephrocalcinosis.
Orbital compression syndrome in a Ugandan child with sickle cell disease: A case report
Authors: Olum Ronald , Nabaggala Catherine , Mwebe Victoria Katasi , Namazzi Ruth , Munube Deogratias , Kitaka Sabrina Bakeera 
Published: September 2021

AbstractOrbital compression syndrome is a rare acute complication of sickle cell disease that may impair vision. Assessment by a multidisciplinary team incorporates detailed history and physical examination, fundoscopy, and appropriate imaging to exclude infections or neoplasms. Supportive treatment is adequate unless there is evidence of life‐threatening space‐occupying lesion warranting surgery.
Systematic extended posterior right sectionectomy with simultaneous resection of the dorsal part of segment 1 and middle hepatic vein detachment
Authors: Burlaka Anton Anatoliyovych , Gogo‐Abite Awofaa , Paliichuk Ariadna V. , Makhmudov Dmytro E. , Zvirych Vitalii V. , Lukashenko Andrii V. 
Published: September 2021

AbstractParenchymal sparing surgery should be the strategy of choice for patients with bilobar liver metastases and lesions within the central liver sites.
Overall of kidney transplant recipients with a pretransplantation cancer history
Authors: Chargui Soumaya , Braiek Nesrine , Bacha Mohamed Mongi , Harzallah Amel , Hedri Hafedh , Ouinissi Mondher , Abderrahim Ezzeddine 
Published: September 2021

AbstractNo significant morbidity from recurrence cancer and no development of secondary type of cancers in pre‐existing malignancies. We must be careful about risk of rejection.
Ominous combination: COVID‐19 disease and Candida auris fungemia—Case report and review of the literature
Authors: Goravey Wael , Ali Gawahir A. , Ali Masia , Ibrahim Emad B. , Al Maslamani Muna , Abdel Hadi Hamad 
Published: September 2021

AbstractThe identification of Candida auris fungemia in critically ill COVID‐19 patients is detrimental, with huge implications on patient mortality and infectious control measures.
Evaluation of incorporated phosphorus fertilizer recommendations on no‐till managed winter wheat
Authors: Reed Vaughn , Watkins Patrick , Souza Joao , Arnall Brian 
Published: September 2021

AbstractThe current Oklahoma State University Soil, Water, and Forage Analytical Laboratory (OSU) phosphorus (P) recommendations were developed for conventional tillage systems with P fertilizer incorporated in the soil. The rate recommendations were based on a sufficiency approach, and included a pH adjustment factor. Increased adoption of no‐till (NT) management across the region has resulted in more surface application of fertilizer, without concomitant changes in OSU recommendations. In the 2014–2015 and 2015–2016 growing seasons, nine on‐farm trials were conducted in north‐central Oklahoma to evaluate current winter wheat (Triticum aestivum L.) P recommendations, and grain yield responses to fertilizer in both P‐sufficient and P‐deficient soils, and acidic or non‐acidic conditions. Phosphorus fertilizer was recommended for eight of the nine locations, while responses were recorded at only five of those eight locations. The results indicate that OSU P recommendations, with a soil acidity adjustment factor, did not limit winter wheat grain yields in NT management. In addition, the application of 30 lb acre–1 P2O5 offset the effects of soil acidity on P uptake regardless of the degree of acidity. Finally, OSU recommended P on some locations where there was no response, suggesting more work is needed to understand crop response dynamics and build recommendations with increased location specificity.
Aus der Krise für die Zeit ohne Krise lernen – wie agiles Vorgehen uns in Zukunft helfen kann…
Authors: Paulus Gerd , Jeggle Christoph , Meuten Markus 
Published: September 2021

AbstractAgilität bedeutet aktiv agieren und dabei das Wissen aller Beteiligten zur Optimierung einzubeziehen. Um Prozesse in agiler Vorgehensweise zu verbessern, ist eine Veränderung in inkrementellen Schritten geeignet. Bereits während des Projektverlaufs wird das Optimierungspotenzial erkannt und kann schrittweise umgesetzt werden. Am Beispiel eines Data Warehouse der Pharmaindustrie wird Aufwand und Nutzen gegenübergestellt.
Multiphysikmodellierung in der Biopharmaindustrie
Authors: Conrad Zack 
Published: September 2021

AbstractEin führendes multinationales biopharmazeutisches Unternehmen, nutzt multiphysikalische Simulations‐Apps um Prozesse zu rationalisieren, Arbeitsabläufe zu verbessern und die Sicherheit und Wirksamkeit von Arzneimitteln zu gewährleisten. Am Beispiel von Trocknungsprozessen, die zu einem Engpass in der Herstellung einer Arzneimittelsubstanz hätten werden können, wird dargestellt, wie sich mithilfe der Simulations‐App die Trocknungsvorgänge optimieren ließen.
Extrusion von Batteriemassen
Authors: Lorenzoni Anselm 
Published: September 2021

AbstractDas Maschinenbauunternehmen Coperion mit Sitz in Stuttgart unterstützt als Projektpartner die Technische Universität Braunschweig bei der Erforschung smarter Produktionslösungen in der Extrusion von Batteriemassen. Ziel des DaLion 4.0‐Projekts (Data‐Mining als Basis cyber‐physischer Systeme in der Lithium‐Ionen‐Batteriezellproduktion) ist es, neue Industrie 4.0‐Ansätze für die Produktion von Lithium‐Ionen‐Batterien zu entwickeln und die Erkenntnisse für eine effizientere Herstellung nutzen zu können.
Flow‐Chemistry‐Anlage im World‐Scale Maßstab umgesetzt
Authors: Raffa Carmine , Kaaden Anne 
Published: September 2021

AbstractNach einer anfänglichen Euphorie stagnierte der Einsatz der Mikroreaktionstechnik, doch nun ist sie auf dem Weg, sich in der Produktion zu etablieren. In China wird derzeit eine World‐Scale‐Anlage aufgebaut, die die Miprowa‐Technologie von Ehrfeld Mikrotechnik nutzt.
Neue Pflichten für Verpackungen
Authors: Reuter Kristin 
Published: September 2021

AbstractAuf die Inverkehrbringer von industriellen Verpackungen kommen einige neue Pflichten wie z.B. erweiterte Registrierungs‐ und Nachweispflichten zu. Hintergrund ist die Novelle des Verpackungsgesetzes (VerpackG), das in seiner neuen Fassung grundsätzlich ab dem 03. Juli 2021 gültig ist. Das Datum des Inkrafttretens der Anforderungen liegt z.T. erst nach dem 03. Juli 2021. Der Verband der Chemischen Industrie hat einen Leitfaden für industrielle Verpackungen verfasst und eine unverbindliche Praxisempfehlung zur Novelle des Verpackungsgesetzes ausgesprochen.
Automatisierte Fass‐Etikettierung
Authors: Aufdermauer Antoinette 
Published: September 2021

AbstractAn ihrem Standort in Lampertheim stellt die BASF Additive für Kunststoffe her. Bei der Kennzeichnung der Behälter setzt das Chemieunternehmen Anlagen von Bluhm Systeme ein. Herausforderungen waren die Automatisierung der Verpackungsprozesse sowie das Aufbringen individueller Druckdaten mit einem scharfen Druckbild. Außerdem war sicherzustellen, dass die Etiketten blasenfrei aufgebracht sind.
How to establish a coordinated supervisory mechanism of internet finance companies in China?
Authors: Zhang Zhiyuan , Song Yang , Sahut Jean‐Michel , Hong Pan 
Published: September 2021

AbstractThis paper aims to explore how local government can be involved in regulating the digital innovations of internet finance companies in China. Game models were used to study the behaviors between internet finance companies and local government, and between local government and central regulatory agencies. The following phenomena were observed: in a static game, internet finance companies will tend to choose high‐risk innovation activities, while local government can effectively prevent the high risks inherent to innovation by participating in supervision. In a dynamic game, internet finance companies will take rent‐seeking approaches to evade punishment, which lower the likelihood of local government supervision. From these results we can propose policy implications for regulating digital innovation of internet finance companies.
Synthesis, Characterization of Rare‐Earth Metal Chlorides Bearing Indolyl‐Based NCN Pincer Ligand and Their Catalytic Activity toward 1,4‐cis Polymerization of Isoprene
Authors: Huang Zeming , Wang Shaowu , Zhu Xiancui , Wei Yun , Yuan Qingbing , Zhou Shuangliu , Mu Xiaolong , Wang Hua 
Published: September 2021

Main observation and conclusionA novel indolyl‐based NCN pincer ligand precursor HL (HL = (1‐(2‐(CH2)4NCH2CH2)‐3‐(2,6‐iPr2C6H3N=CH)C8H5N)) was rationally and precisely designed, and successfully prepared in a high yield. Lithiation of HL with nBuLi in n‐hexane, followed by treatment with RECl3 in THF led to the isolation of rare‐earth metal chlorides in monomeric form (κ3‐L)RECl2(THF) (RE = Sc(2), Yb(3)), and dimeric form [(κ3‐L)RECl(THF)(μ‐Cl)]2 (RE = Er(4), Y(5)) bearing the novel indolyl‐based NCN pincer ligand in designed pincer ligation depending on different metal ionic radii; and the chloride bridged rare‐earth metal and lithium mixed complexes in form (κ2‐L)2RE(μ‐Cl)2Li(THF)2 (RE = Y(6), Dy(7). All complexes were fully characterized and their structures were determined. The diamagnetic complexes 2, 5 and 6 were furtherly characterized by the NMR spectroscopic method. The catalytic activity studies revealed that the central metal ions, borates, aluminum alkyls, and ligation of the central metal ions have influences on catalytic activity, and regio‐ and stereoselectivity for the polymerization of isoprene. With cooperation of the cocatalysts, the pincer‐type yttrium chloride 5 initiated the isoprene polymerization with a high activity producing polymers with high regio‐ and stereoselectivity (1,4‐cis polymers up to 99.6%), and the Mn as high as 8.76 × 105.
Color preference and contributing factors of urban architecture based on the selection of color samples—Case study: Shanghai
Authors: Gou Aiping , Shi Binli , Wang Jiangbo , Wang Hongwei 
Published: September 2021

AbstractThe research on citizens' color preference is an important prerequisite for the scientific formulation of urban color planning. Color preferences are normally identified over the Internet or through questionnaire surveys and adjective descriptions. But the analysis has its limitations due to the uncertainty of color descriptions. Based on the quantitative analysis of the three attributes of hue, blackness, and chromaticness, this article obtains the inherent law of color preference of citizens, and compares it with the results of color adjective preference done by our research group before, which can supplement the accuracy of adjective description, so as to provide a reference for the color positioning of urban color planning. This article obtains the three attributes of color samples chosen by the public in the form of questionnaires as well as color sample selections. Among which 36 representative sites in Shanghai were selected according to the six types of land use. Adopting a more detailed method of dividing nine color series, viz. yellow (Y), red‐yellow (YR), red (R), red‐blue (RB), blue (B), blue‐green (BG), green (G), green‐yellow (GY), and the neutrals (WS). Moreover, chi‐square test and multiple logistic regression model were used to analyze the color preference factors and explore the relationship between citizen attributes and the three attributes of color sample selection. Research findings are as follows: (a) The citizens' favorite colors of urban architecture center round red, high whiteness, and mid‐low chromaticness. (b) The main factors that influence citizens' hue preference include gender, age, and monthly income; the main factors that influence citizens' blackness preference include: questionnaire distribution points, the frequency of coming to Shanghai, and whether to go abroad; gender and age are the main factors that affect citizens' chromaticness preference. (c) Compared with the previous studies on adjective selection among citizens, it is found that the effect of gender, age, monthly income, and educational background on color preference is similar; differences are in the occupational types, frequency of coming to Shanghai, and whether travels abroad.
Multilevel authentication protocol for enabling secure communication in Internet of Things
Authors: Singh Khushal , Singh Nanhay 
Published: September 2021

AbstractThe Internet of Things (IoT) is the domain of interest for researchers with exponential growth in technology. This article develops an authentication protocol based on the Chebyshev polynomial, hashing function, session password, and encryption. The proposed authentication protocol is named as proposed Elliptic, Chebyshev, Session password, and Hash function (ECSH)‐based multilevel authentication. For authenticating the incoming user, there are two phases, registration and authentication. In the registration phase, the user is registered with the server and authentication center (AC), and the authentication follows, which is an eight‐step criterion. The authentication is duly based on the scale factor of the user and server, session password, and verification messages. The authentication at the eight levels assures the security against various types of attacks and renders secure communication in IoT with minimal communication overhead and packet loss. The performance is analyzed using black‐hole, and denial‐of‐service (DOS) attacks with 50 and 100 nodes in the simulation environment. The proposed ECSH‐based multilevel authentication acquired the maximal detection rate, PDR, and QoS of 15.2%, 35.7895%, and 26.4623%, respectively, for 50 nodes with DOS attacks. By contrast, the minimal delay of 135.922 ms is acquired in the presence of 100 nodes and DOS attacks.
Genetic diversity determined by agronomic traits and SSR markers in two South American orange‐fleshed sweetpotato breeding populations with potential for population hybrid breeding
Authors: Diaz Federico C. , Eyzaguirre Raul , David Maria C. , Blas Sevillano Raul , Low Jan W. , Grüneberg Wolfgang J. 
Published: September 2021

AbstractOrange‐fleshed sweetpotato [Ipomoea batatas (L.) Lam.] (OFSP) breeding populations have gained importance for food security and health reasons. This study's main objectives were to determine genetic diversity in parental material of two OFSP populations developed in Peru (Jewel [PJ] and Zapallo [PZ]) relative to mega‐clones (MCs) using agronomic traits and simple sequence repeat (SSR) markers and to determine whether PJ and PZ are mutually heterotic by developing a PJ × PZ hybrid population (H0). Field trials were performed with clones for PJ (n = 49), PZ (n = 31), MC (n = 21), and H0 (n = 6,898) in Peru. Traits recorded were storage root yield (RYTHA), number of commercial roots per plant, foliage yield, biomass, harvest index, and dry matter (RDM), β‐carotene (RBC), protein, starch, sucrose, iron, zinc, and calcium content of storage roots. Sixty‐six pairs of SSR primers were used to determine molecular diversity. Statistics used were linear mixed models, principal component analysis, and standard procedures for molecular data. New genetic variation was found in PJ and PZ (e.g., RDM ≥29% with RBC ≥25 mg 100 g−1 dry weight basis). For most traits, genetic variance in PJ and PZ was as large as in MC. The SSR marker data clearly separated PJ and PZ into two gene‐pools, together covering nearly the entire MC molecular diversity. Average RYTHA in H0 was high (40.7 t ha−1) with average heterosis increment of 21.8% and range −30.6 to 139.4%. The PJ and PZ lend themselves to study of the efficiency of reciprocal recurrent selection in sweetpotato population hybrid breeding.