bluuebunny/crossref_metadata_2025_split huggingface dataset:
Crystal structure of incommensurate ηʺ-Cu1.235Sn intermetallic
Authors: Leineweber Andreas , Wieser Christian , Hügel Werner 
Published: August 2020

Abstract
The crystallographic parameters of the incommensurately ordered phase ηʺ of the composition Cu1.235Sn are reported. This phase belongs to the group of ordered Ni2In/NiAs-type phases, with a NiAs-type arrangement Cu(1)Sn and additional Cu(2) atoms partially occupying trigonal-bipyramidal interstices in an ordered fashion, leading to the formula Cu(1)Cu(2)0.235Sn = Cu1.235Sn. The structure model, afterward refined on the basis of powder X-ray diffraction data, has been derived on the basis of the slightly Cu-poorer commensurately ordered η′-Cu6Sn5 (=Cu1.2Sn) phase but also on previously reported commensurate structure models η8-Cu1.25Sn and η4+1-Cu1.243Sn derived from selected area electron diffraction data. In line with a recent work (Leineweber, Wieser & Hügel, Scr. Mater. 2020, 183, 66–70), the incommensurate ηʺ phase is regarded as a metastable phase formed upon partitionless ordering of the η high-temperature phase with absent long-range ordering of the Cu(2) atoms. The previously described η8 and η4+1 superstructure are actually of the same phase, and the corresponding superstructure models can be regarded as approximant structures of the ηʺ phase.
The refined structure model is described in 3+1 dimensional superspace group symmetry C2/c(q
10-q
3)00 with a unit cell of the average structure with lattice parameters of a
av
= 4.21866(3) Å, b
av = 7.31425(5) Å, c
av = 5.11137(3) Å and b
av = 90.2205(5)° and a unit cell volume V = 157.717(2) Å3. The modulation vector is with q
1 = 0.76390(4), q
3 = 1.51135(5), and governs the spatial modulation of the occupancy of the Cu(2) atoms described by a Crenel function. The occupational ordering is accompanied by displacive modulations of the atoms constituting the crystal structure, ensuring reasonable interatomic distances on a local level. In particular, the spatial requirements of pairs of edge-sharing Cu(2)Sn5 trigonal bipyramids (Cu(2)2Sn8) lead to a measurable splitting of some fundamental reflections in the powder diffraction data. This splitting is considerable smaller in η′-Cu1.20Sn, which lacks such pairs due to the lower Cu content.
Increased Joint Mobility Is Associated With Impaired Transversus Abdominis Contraction
Authors: Mitchell Ulrike H. , Owen Patrick J. , Rantalainen Timo , Belavý Daniel L. 
Published: August 2020

Abstract
Mitchell, UH, Owen, PJ, Rantalainen, T, and Belavý, DL. Increased joint mobility is associated with impaired transversus abdominis contraction. J Strength Cond Res 36(9): 2472–2478, 2022—Increased joint mobility is a risk factor for joint injury, but muscle function may be able to compensate for it. Current evidence suggests reduced force production capacity in people with hypermobility. However, little is known about the lumbar spine. The purpose of this cross-sectional study was to assess whether there was a link between joint mobility and transverse abdominis and multifidus muscles contraction, muscles ascribed a core-stability role. Using a modified quantitative version of the Beighton scale (BOM score), we measured joint mobility of 30 middle-aged individuals without low back pain. These scores were correlated with magnetic resonance imaging–derived measures of transverse abdominis and multifidus muscle contraction during a spinal loading maneuver. The level of significance was set for p ≤ 0.05. The results showed greater joint mobility (a higher BOM score) correlated (r = 0.468; p = 0.009) with reduced transversus abdominis (TrA) shortening during contraction (i.e., less muscle shortening in people with greater joint mobility). The trunk subdomain score exhibited a correlation of 0.354 with TrA length change, but this did not reach statistical significance (p = 0.055). The subdomains of the BOM score did not correlate significantly with each other (p ≥ 0.097). No association was seen between multifidus contraction and joint mobility. The results suggest that greater general joint mobility is associated with impaired contraction of the TrA muscle. This should be considered when coaching athletes or treating patients with (functional) spinal instability. The quantitative approach we developed to measure joint mobility could be used in the future studies of global flexibility.
Evaluation of the At-Rest Coefficient of Earth Pressure in Unsaturated Residual Soil with a New Suction-Controlled Device
Authors: de Campos Tácio M. P. , de C. Viana Ana Carolina , Silva Thaiana A. , Abrantes Lorena G. 
Published: August 2020

Abstract
Data on the at-rest coefficient of earth pressure (K0) in undisturbed, unsaturated residual soils are rarely found in the literature. This article describes a new suction-controlled system developed for measuring K0 in residual soil samples, as well as corrections required to get a sensible evaluation of K0. The K0 device comprises a rigid chamber containing a 4-in diameter triaxial sample. Suction is controlled using the axis translation technique. The results of tests performed in mature and young residual soils originated from phacoidal gneiss are presented and discussed. The testing interpretation using either Bishop’s or Fredund’s approaches provide similar results. It is shown that K0 varies with both suction and net stress and is affected by the degree of weathering of residual soils.
Average charge of superheavy recoil ion in helium gas
Authors: Kaji D. , Morita K. , Morimoto K. , Haba H. , Kudo H. 
Published: August 2020

Abstract
The average equilibrium charges q
ave of heavy recoil ions moving in helium gas were measured by a gas-filled recoil ion separator (GARIS). A new empirical formula to calculate q
ave for superheavy recoil ions with a low velocity was derived. This formula was applicable to the search for a superheavy nuclide of 266Bh.
Determination of plutonium, uranium and americium/curium isotopes in environmental samples with anion exchange, UTEVA, Sr and DGA resin
Authors: Lee M.H. , Park J.-H. , Song K. 
Published: August 2020

Abstract
This study presents a quantitative sequential radiochemical separation method for the Pu, U, Sr and Am/Cm isotopes with an anion exchange resin, UTEVA resin, Sr resin and DGA resin in environmental samples. After the radionuclides were leached from samples with 8 M HNO3, the Pu, U, Sr and Am/Cm isotopes were sequentially adsorbed on the anion exchange column, UTEVA column connected with Sr Spec column and DGA column. The Pu isotopes were purified from other nuclides through the anion exchange column, and the uranium isotopes were separated from other nuclides through the UTEVA column. Also, 90Sr was separated from other hindrance elements such as Ca2+, Ba2+ and Y3+ with the Sr Spec column. Finally, Am/Cm fractions were purified with the DGA and anion exchange resins. After α source preparation for the purified Pu, U and Am/Cm isotopes with the micro-coprecipitation method, the Pu, U and Am/Cm isotopes were measured by an alpha spectrometry. Strontium-90 was measured by a low level liquid scintillation counter. The radiochemical procedure for Pu, U and Am nuclides investigated in this study has been validated by application to IAEA Reference soils.
Heavy metal elements in toiletries analyzed by INAA, ICP-MS and SEM-EDX
Authors: Furuta E. , Minowa H. , Tagami K. , Okada Y. , Nakahara H. 
Published: August 2020

Abstract
Recently, many toiletries claiming inclusion of platinum (Pt), silver (Ag) and gold (Au) as additives are sold in ordinary cosmetics shops. However, their concentrations are not clearly indicated. In the present work, these toiletries were analyzed for heavy metal elements by instrumental neutron activation analysis (INAA) and inductively coupled plasma mass spectrometry (ICP-MS), and the particle sizes were observed by scanning electron microscope (SEM) and the constitutions of the small particles were analyzed by energy dispersive X-ray spectroscopy (EDX). The concentrations of Pt in the toiletries observed were from 1 to 80 ppm. The lower detection limit of Pt by INAA was about 1 ppm because of the presence of sodium in high concentrations for those samples. Consequently, some toiletries which should have had Pt according to the manufactures were found not to contain Pt probably because it was less than the detection limit. On the other hand, there were a few toiletries that were found to contain Ag although the addition of Ag was not mentioned by the manufactures. It is considered that these non-indicated Ag were included as impurities of the added Au. The concentrations of the non-indicated Ag were even higher than those of the indicated Ag. A very small amount of Sr, which was nominated in the negative list of Japan, was also detected in 2 out of 5 kinds of toiletries analyzed by ICP-MS.
The extraction of past environmental information using 137Cs and some elements in terrestrial carbonate deposits
Authors: Sugihara S. , Kurisaki K. , Morinaga I. , Momoshima N. , Yoshimura K. 
Published: August 2020

Abstract
Terrestrial carbonate deposits with a banded layer structure can be good tools for the extraction of past environmental information on global and local scales. The absolute age dating is most important for the reconstruction of an environmental chronicle. The terrestrial carbonate deposits(tufa) was collected at Hirao-dai Plateau in Fukuoka, Japan. Tufa has wide banded layers in which the growth rates are about a few mm a year. The activity of 137Cs that was a global or local fallout radionuclide was measured in each layer of the tufa sample. The absolute age was determined by the numbering of a banded layer and 137Cs activity profiles. The trace of the atomic bombing at Nagasaki was detected. The growth rate of the tufa is related to the environment of the year. The variations of a depositional condition of tufa sample were checked by some metal concentrations determined by neutron activation analysis. The relationship between the variation of environmental condition and the historical event at Hirao-dai was discussed using these metal concentration profiles.
Chromosome-Scale Assembly of the Bread Wheat Genome Reveals Thousands of Additional Gene Copies
Authors: Alonge Michael , Shumate Alaina , Puiu Daniela , Zimin Aleksey V , Salzberg Steven L 
Published: August 2020

Abstract
Bread wheat (Triticum aestivum) is a major food crop and an important plant system for agricultural genetics research. However, due to the complexity and size of its allohexaploid genome, genomic resources are limited compared to other major crops. The IWGSC recently published a reference genome and associated annotation (IWGSC CS v1.0, Chinese Spring) that has been widely adopted and utilized by the wheat community. Although this reference assembly represents all three wheat subgenomes at chromosome-scale, it was derived from short reads, and thus is missing a substantial portion of the expected 16 Gbp of genomic sequence. We earlier published an independent wheat assembly (Triticum_aestivum_3.1, Chinese Spring) that came much closer in length to the expected genome size, although it was only a contig-level assembly lacking gene annotations. Here, we describe a reference-guided effort to scaffold those contigs into chromosome-length pseudomolecules, add in any missing sequence that was unique to the IWGSC CS v1.0 assembly, and annotate the resulting pseudomolecules with genes. Our updated assembly, Triticum_aestivum_4.0, contains 15.07 Gbp of nongap sequence anchored to chromosomes, which is 1.2 Gbps more than the previous reference assembly. It includes 108,639 genes unambiguously localized to chromosomes, including over 2000 genes that were previously unplaced. We also discovered &gt;5700 additional gene copies, facilitating the accurate annotation of functional gene duplications including at the Ppd-B1 photoperiod response locus.
Using Copula Functions to Estimate The AUC for Two Dependent Diagnostic Tests
Authors: Bravo Melo Luis Carlos , Portilla Yela Jennyfer , Tovar Cuevas José Rafael 
Published: August 2020

When performing validation studies on diagnostic classification procedures, one or more biomarkers are typically measured in individuals. Some of these biomarkers may provide better information; moreover, more than one biomarker may be significant and may exhibit dependence between them. This proposal intends to estimate the Area Under the Receiver Operating Characteristic Curve (AUC) for classifying individuals in a screening study. We analyze the dependence between the results of the tests by means of copula-type dependence (using FGM and Gumbel-Barnett copula functions), and studying the respective AUC under this type of dependence. Three different dependence-level values were evaluated for each copula function considered. In most of the reviewed literature, the authors assume a normal model to represent the performance of the biomarkers used for clinical diagnosis. There are situations in which assuming normality is not possible because that model is not suitable for one or both biomarkers. The proposed statistical model does not depend on some distributional assumption for the biomarkers used for diagnosis procedure, and additionally, it is not necessary to observe a strong or moderate linear dependence between them.
Задачі зв’язності для узагальнених гіпергеометричних многочленів Аппеля
Authors: Luno Nataliia 
Published: August 2020

В статті використано загальний підхід до розв’язування задач зв’язності для многочленів Аппеля, який базується на тому, що відношення трансферних функцій, які представляють собою формальні степеневі ряди, даних двох сімейств многочленів Аппеля є відомим рядом. Використовуючи рекурентні формули для знаходження коефіцієнтів ряду, який є відношенням двох даних формальних степеневих рядів, ми отримали розв’язок оберненої задачі для узагальнених гіпергеометричних многочленів Аппеля. В загальному випадку розв’язок визначається рекурентними формулами, але у деяких часткових випадках, коли породжуюча функція має простий вигляд, розв’язок оберненої задачі виражається у замкнутій формі, зокрема, для многочленів Гоулда-Хоппера, або для узагальнених гіпергеометричних многочленів Аппеля, породжуюча функція яких співпадає із функцією Бесселя першого роду.
Користуючись цим же методом і відомим представленням узагальнених гіпергеометричних многочленів Аппеля у формі звичайного диференціального оператора, ми знайшли рекурентні формули розв'язку задачі зв'язності між узагальненими гіпергеометричними многочленами Аппеля та многочленами Бернуллі, між узагальненими гіпергеометричними многочленами Аппеля - многочленами Гоулд-Хоппера та між двома різними сімействами узагальнених гіпергеометричних многочленів Аппеля. Використовуючи схожий підхід, ми отримали нове рекурентне рівняння для узагальнених гіпергеометричних многочленів Аппеля, коефіцієнти якого визначаються рекурентно, і встановили замкнуту форму декількох перших з них. Частковими випадками отриманого рівняння є, зокрема, відомі рекурентні рівняння для многочленів Гоулда-Хоппера і для многочленів Ерміта.
Крім того, розв'язок задачі зв'язності для двох різних сімейств узагальнених гіпергеометричних многочленів Аппеля отримано в іншій формі - з використанням значень цих многочленів в нулі.
Study related knowledge management process at the university department: theoretical approach
Authors: Misiūnaitė - Bačiauskienė Eglė , Jucevičienė Palmira 
Published: August 2020

Educating professionals for knowledge organizations becomes a relevant goal of education. The underlying asset of knowledge organizations is unique knowledge possessing the essential worth for organizations’ value creation. In the dynamic structure of professionals’ competences the abilities of organizational learning are fundamental. Thus knowledge management increasingly becomes the paradigm uniting education and management. In this context universities identify themselves as knowledge organizations, the basic structural units of which – departments – have to distinguish themselves in the essential features of knowledge management if they wish to be able to educate future professionals for knowledge organizations. As research publications on studies related to knowledge management process at the university department are missing, modelling of such knowledge management process is a relevant research problem, which presupposes the question: what aspects of studies related knowledge management process are characteristic of the university department?This article provides a theoretical rationale for study related knowledge management process at the university department.
As a result of research literature analysis, the following conclusions have been drawn:
• The paradigm of knowledge management expands the concept of study related performance of the university department by adding the concept of study related knowledge management process.
• The concept of organizational learning as learning on individual and collective levels as well as at their interface, which creates organizational knowledge for empowering the construction, implementation and development of study programmes, is insufficientfor encouraging indepth changes of study related performance that respond to the challenges of the contemporary universit y.
• The process of study related knowledge management process is defined as an integrated whole of activities initiated and (or) supported at the university department for the sake of identifying, acquiring, creating, disseminating study related knowledge, storing valuable knowledge and applying it in studies. Organizational learning and its empowerment are of special importance in the process of study related knowledge management.
KEARIFAN LOKAL ARSITEKTURE RUMAH ADAT OSING DALAM PEMBELAJARAN IPS
Authors: Zulfikar Fachri 
Published: August 2020

This study described the local wisdom of Osing community as reflected on the architecture of traditional houses that could be used as instructional resources for social studies. The approach in this research was qualitative. Data were collected through observation and literature studies of books, journals, papers, written texts, and others related to the local wisdom and social studies education. This study shows that the architecture of the Osing traditional house has specific values that can be used for instructional purpose of social studies education. Students could visit Kemiren village and learn directly from the architerture of the traditional house and other artifacts in the village.
Diversos procedimientos aplicables en el tratamiento de la vejiga neurogénica
Authors: Ney Charles , Ramírez Gutiérrez Alfonso 
Published: August 2020

Los problemas envueltos en el tratamiento de la vejiga neurogénica, son bien conocidos para la mayoría de los urólogos y en los últimos años, como resultado de las heridas de la médula, en la segunda guerra mundial. Se ha notado un resurgimiento de interés en este campo.
Algunas consideraciones sobre placentas y sangres del cordón umbilical y materno
Authors: Forero Neira Jesús M. 
Published: August 2020

Desempeñando la placenta la función de pulmón del feto durante su vida intrauterina, pensé que pudiera haber alguna relación entre el tamaño de la placenta entre su superficie de inserción o entre su peso comparado con el del feto y la cantidad de hemoglobina o de glóbulos rojos en el feto.
Misión de nuestra sociedad
Authors: Silva Mojica C. R. 
Published: August 2020

La mesa Directiva actual de la Sociedad Colombiana de obstetricia y Ginecología se encuentra seriamente intencionada en una labor de orientación científica. El Presidente, doctor Arturo Aparicio, fué bastante enfático desde el momento mismo de tomar posesión de su cargo y dar comienzo a las labores de este nuevo período de la corporación. Puso de presente en forma clara que la finalidad de la Sociedad es ante todo científica y secundariamente gremial máxime ante las circunstancias presentes en que obstetras y ginecólogos deben prestar atención especialísima a la organización del ya muy próximo primer Congreso Nacional de Obstetricia y Ginecología.
Una orientación terapéutica en la eclampsia
Authors: Cubillos R. Luis Guillermo 
Published: August 2020

Consigno mi reconocimiento muy sincero al señor Director de la Clínca Primero de Mayo, doctor José Vicente Sánchez Zapata, quien en representación del I. C. S. S. aceptó e hizo posible la realización de esta nueva orientación terapéutica.
Improving the use of ICT through online professional development platform based on metacognitive strategies
Authors: Celen Fatma Kubra , Seferoglu Suleyman Sadi 
Published: August 2020

In this study, it is aimed to developing an online professional development practice to support teachers’ use of ICT. The study was conducted as an action research. Within the scope of action research, the data collection/analysis process, the situation and problems have been identified and the action/implementation plan has been developed. Within the scope of the action/implementation plan, the process of structuring the professional development programme and the development of the online learning environment was carried out. The study group consists of teachers with different ICT usage competency levels, professional experiences and branches. The data were collected through different data collection tools, which were personal information form, semi-structured interview forms and valid and reliable scales. As a result of the study, it was determined that the online professional development practice contributed positively to teachers’ use of ICT and the use of meta cognitive learning strategies. In this context, an online professional development model has been proposed that can support the use of ICT in the teaching–learning process in the context of developing ICT knowledge and skills, using meta cognitive learning strategies, and awareness of new technologies.

Keywords: Online learning, ICT, professional development, metacognition, technology use.