bluuebunny/crossref_metadata_2025_split huggingface dataset:
Identificação da artéria de Adamkiewicz usando angiotomografia computadorizada por multidetectores (ATCM)
Authors: Piola Flávio P.F. , Nogueira-Barbosa Marcello H. , Maranho Daniel A.C. , Martins Adélson A. , Barbosa Maurício F. , Herrero Carlos F.P. Silva 
Published: December 2019

Resumo
Objetivo Avaliar a artéria de Adamkiewicz por angiotomografia computadorizada por multidetectores (ATCM) em uma população brasileira.
Métodos Dois observadores independentes avaliaram 86 exames de ACTM. As variáveis estudadas incluíram a identificação da artéria de Adamkiewicz no nível de origem e o lado de entrada da artéria na coluna vertebral.
Resultados A artéria de Adamkiewicz foi identificada em 71 (82,5%) exames. O nível de origem foi identificado entre a 9a e a 11a vértebras torácicas (T9 e T11) em 56 (79,2%) pacientes. Em 65 (91,5%) pacientes, a artéria foi identificada no lado esquerdo. A identificação da artéria de Adamkiewicz usando ACTM mostrou elevada reprodutibilidade.
Conclusões Obtivemos resultados consistentes com os da literatura prévia quanto à identificação da artéria de Adamkiewicz utilizando angiotomografia computadorizada por multidetectores. Nossos resultados sugerem que a ATCM pode ser considerada como uma opção para identificar a artéria de Adamkiewicz. Além disso, encontramos uma distribuição da artéria de Adamkiewicz na população brasileira semelhante à de outras populações, com a artéria de Adamkiewicz originando-se mais comumente no lado esquerdo, entre a 8a e a 12a vértebras torácicas (T8–T12).
Latarjet artroscópico: Descrição de técnica cirúrgica e resultados preliminares. Estudo de 30 primeiros casos
Authors: Castropil Wagner , Schor Breno , Bitar Alexandre , Medina Giovanna , Ribas Luiz Henrique , Mendes Carlos 
Published: December 2019

Resumo
Objetivo A realização da cirurgia de Latarjet por via artroscópica tem sido possível pelo desenvolvimento de instrumentais adequados e um protocolo para cirurgia estabelecido e reprodutível, que promete uma técnica mais precisa e com menor incidência de complicações. O objetivo do presente estudo foi fazer uma breve descrição de técnica cirúrgica e avaliar as complicações de curto prazo após a cirurgia de Latarjet por via artroscópica para correção de luxação anterior do ombro com perda óssea glenoidal.
Método Estudo retrospectivo com 30 pacientes com instabilidade anterior do ombro, operados com a técnica de Latarjet por via artroscópica. Foram feitas avaliação das complicações intraoperatórias e pós-operatório de curto prazo e documentação de necessidade de reintervenções.
Resultados Cinco casos tiveram complicação (16,7%), sendo que nos últimos 10 casos nenhuma complicação foi observada. Em 1 caso (3,3%) foi necessária conversão para cirurgia aberta por fratura do processo coracoide no momento de fixação na glenoide. Nenhum outro caso apresentou complicação intraoperatória. Não houve infecção nos casos operados. Dois casos (6,7%) evoluíram com neuropraxia temporária do musculocutâneo, revertida com fisioterapia. Em tempo de seguimento de 6 a 26 meses, 2 pacientes (6,7%) necessitaram de nova intervenção para retirada do material de síntese e liberação articular por excessiva limitação da rotação externa. Não houve caso de recidiva.
Conclusão O procedimento de Latarjet artroscópico se mostrou seguro e com baixa incidência de complicações de curto prazo para correção da luxação anterior no ombro com perda óssea na glenoide mesmo em curva inicial de aprendizagem.
Analysis of Outcomes in Living Donor Liver Transplants Involving Reconstructive Microsurgeons
Authors: Hernandez Jorge Andres , Mullens Cody L. , Aoyama Julien T. , Ligh Cassandra A. , Shaked Abraham , Olthoff Kim M. , Abt Peter L. , Levin L. Scott , Kovach Stephen J. 
Published: December 2019

Abstract
Background Living donor transplantation is becoming increasingly popular as a modality for patients necessitating liver transplantation. Hepatic artery thrombosis (HAT) remains the most feared acute postoperative complication associated with living-donor liver transplantation. Preoperative planning, including scheduling reconstructive microsurgeons to perform the hepatic artery anastomosis using a surgical microscope or loupes, can decrease HAT rates.
Methods A retrospective review of two reconstructive microsurgeons at a single institution was performed to analyze postoperative outcomes of adult and pediatric live donor liver transplants where reconstructive microsurgeons performed the hepatic artery anastomosis. One surgeon utilized the surgical microscope, while the other surgeon opted to use surgical loupes for the anastomosis.
Results A total of 38 patients (30 adult and eight pediatric) met inclusion criteria for this study, and average patient age in the adult and pediatric population studied was 48.5 and 3.6 years, respectively. Etiologies of adult patients' liver failure were most commonly cholestatic (43%), followed by alcohol (23%), hepatitis C virus-related cirrhosis (17%), and nonalcoholic steatohepatitis (7%), while etiologies of pediatric liver failure were most commonly cholestatic (62.5%). None of the patients (0%) experienced acute postoperative HAT. On average, 22 and 25 months of postoperative follow-up was obtained for the adult and pediatric cohorts, respectively, and only one adult patient was found to have any liver-related complication.
Conclusion A collaborative relationship between reconstructive microsurgeons and transplant surgeons mitigates the risk of HAT and improves patient outcomes in living donor liver transplantation.
Finitely presented nilsemigroups: complexes with the property of uniform ellipticity
Authors: Ivanov-Pogodaev I. A. , Kanel-Belov A. Ya. 
Published: December 2019

Abstract
This paper is the first in a series of three devoted to constructing a finitely presented infinite nilsemigroup satisfying the identity

. This solves a problem of Lev Shevrin and Mark Sapir.
In this first part we obtain a sequence of complexes formed of squares (

-cycles) having the following geometric properties.
1) Complexes are uniformly elliptic. A space is said to be uniformly elliptic if there is a constant

such that in the set of shortest paths of length

connecting points

and

there are two paths such that the distance between them is at most

. In this case, the distance between paths with the same beginning and end is defined as the maximal distance between the corresponding points.
2) Complexes are nested. A complex of level

is obtained from a complex of level

by adding several vertices and edges according to certain rules.
3) Paths admit local transformations. Assume that we can transform paths by replacing a path along two sides of a minimal square by the path along the other two sides. Two shortest paths with the same ends can be transformed into each other locally if these ends are vertices of a square in the embedded complex.
The geometric properties of the sequence of complexes will be further used to define finitely presented semigroups.
Photodissociation transition states characterized by chirped pulse millimeter wave spectroscopy
Authors: Prozument Kirill , Baraban Joshua H. , Changala P. Bryan , Park G. Barratt , Shaver Rachel G. , Muenter John S. , Klippenstein Stephen J. , Chernyak Vladimir Y. , Field Robert W. 
Published: December 2019

Significance
Transition states control results of molecular reactions. However, it is difficult to extract details about the transition state solely from the chemical products born from the transition state. This inability to experimentally characterize transition state limits our ability to predict and steer the outcomes of chemical processes. Here we describe the use of a recently developed, simultaneously broadband and high-resolution technique, chirped-pulse millimeter-wave spectroscopy, to measure the nascent product state distribution that results from the photolysis of vinyl cyanide and, from it, to infer properties of the transition state(s) involved. Insights gleaned from studies such as these are crucial to a detailed understanding of molecular quantum dynamics at a level that promises to allow us to calculate and manipulate chemistry.
Acquisition of quantified partitivity in Catalan-Spanish bilingualism
Authors: Soto-Corominas Adriana 
Published: December 2019

Abstract
Child-level factors such as input quantity and quality have received little attention by studies of bilingual
language acquisition in situations of societal bilingualism. The present study addresses this gap by investigating the acquisition
of quantified partitivity in Catalan-Spanish bilingualism. The two languages present different licensing conditions for noun
ellipsis in quantified partitive objects: Catalan requires quantitative clitic en whereas Spanish requires only the quantifier.
Bilingual participants (N = 338), ages 4–9, were administered two Oral Production Tasks, one for each language.
Analyses of participants’ responses showed that a different combination of child-level factors accounted for their performance in
each language, revealing dominance effects. Once participants were classified into three groups (Catalan-dominant, Balanced
bilingual, and Spanish-dominant) according to their language dominance, between-group differences were found in each language with
respect to the acquisition timeline of the respective structure.
Left is right, right is not
Authors: Her One-Soon , Tsai Hui-Chin 
Published: December 2019

AbstractThis paper argues for the left-branching constituency of the Chinese classifier phrase and demonstrates that the right-branching approach assumed by the majority of current syntactic works is not viable. The rejection of the right-branching approach entails the rejection of the “split” approach, where both left- and right-branching structures are required. In this debate, we offer a vital fresh perspective from the syntax and mathematics of complex numerals. We examine the right-branching argumentation inA. Li (2014), which, crucially, extendsIonin & Matushansky’s (2006)non-constituent account of complex numerals, e.g.two hundred, in non-classifier languages like English to Chinese and must rely on ellipsis and a silent element YIDIAR ‘a bit’. Yet, complex numerals in Chinese, e.g.liang bai‘200’, are in fact constituents (He 2015), and the alleged YIDIAR ‘a bit’ does affect the semantics of the noun phrase and is thus by definition illicit (Her & Tsai 2014;2015). Other evidence comes from Chinese synchronic and diachronic syntax as well as the typology of classifier word orders. While the overall argumentation centers on Chinese, it has significant cross-linguistic implications.
The use of the Korean first person possessive pronounnayvis-à-viswuli
Authors: Lee Hye-Kyung 
Published: December 2019

AbstractThis paper takes a corpus-driven approach to the Korean first person possessive pronounnaywith reference to its plural counterpartwuli. The examination of the frequent noun collocates of the two pronouns in Sejong Corpus reveals the close connection betweennayand inalienable entities as well as persons lower than the speaker. Meanwhile,wuliis strongly coupled with places or organizations alongside persons higher than the speaker. Pragmatic principles account for the difference between the kinship term collocates of the two pronouns, such as Horn’s (1984;1989) R-principle orLevinson’s (2000)M-principle. The non-prototypical singular use ofwulitriggers a pragmatic effect of expressing, for example, affection. The frequent collocation ofnaywith foreign/loan nouns is a reflection of the tendency that people more interested in social mobility (younger generation and women) are more ready to employnayrather than the singularwuliand to accept foreign/loan words. The meaning ofnayemerging from its interaction with noun collocates is that it is closely connected with being inalienable, private, or unshared. Meanwhile, the singular meaning ofwuliis pragmatically derived, which is construed as being grouped, deferent, or general.
The structure of Num+CL in the Zhōutún dialect
Authors: Zhou Chenlei 
Published: December 2019

AbstractThe structure of Num+CL in the Zhōutún dialect can be divided into two kinds: VCP and NCP. The VCP in VCP+V is the adverbial, while the NCP can either precede or follow the N it modifies. In NCP+N, the NCP is the attribute; however, in N+NCP, the NCP can be the post-attribute and the adverbial, according to the syntactic property of N. The language contact of the Zhōutún dialect with Amdo Tibetan (AT) plays a role in leading to the peculiarities of Num+CL in the Zhōutún dialect.
Public Libraries as Partners in Confronting the Overdose Crisis: A Qualitative Analysis
Authors: Lowenstein Margaret , Feuerstein-Simon Rachel , Sheni Risha , Dupuis Roxanne , Kinsey Eliza Whiteman , Luna Marti Xochitl , Cannuscio Carolyn 
Published: December 2019

Background The overdose crisis is affecting public libraries. In a 2017 survey of public librarians, half reported providing patrons support regarding substance use and mental health in the previous month, and 12% reported on-site drug overdose at their library in the previous year. Given the magnitude of the overdose crisis and the fact that public libraries host 1.4 billion visits annually, our aim was to understand how libraries currently assist with substance use and overdose and how they can further address these issues. Methods We conducted semi-structured interviews with 44 public library staff from across the U.S. attending a national meeting in March 2018. Interviews addressed attitudes and experiences regarding drug use, overdose, and overdose response in libraries. We analyzed interviews using thematic content analysis guided by the Consolidated Framework for Implementation Research. Results Participants were from 26 states. Among libraries in this sample, 14% had experienced an on-site drug overdose and 7% stocked naloxone at the time of study. Nearly all participants reported substance use as a prominent concern among patrons and their families, as well as in the library itself. Many participants were willing to provide support to patrons and even administer naloxone, but they often lacked preparation, resources, or institutional support. Participants also expressed interest in providing information or referrals to people who use drugs (PWUD), but such efforts were often stymied by inadequate community resources. Finally, participants expressed interest in strengthening partnerships between public libraries and health and social service organizations. Conclusions and Relevance Public library staff routinely engage PWUD, and based on prior studies, nearly 2,000 of U.S. public libraries can expect an on-site overdose in the next year. Findings from our work highlight the need for further study about how public libraries can act as part of comprehensive, community-based strategies to address the opioid epidemic.
Multiple Killing horizons: the initial value formulation for

Λ

-vacuum
Authors: Mars Marc , Paetz Tim-Torben , Senovilla José M M 
Published: December 2019

Abstract
In Mars et al (2018 Class. Quantum Grav. 35 155015) we have introduced the notion of ‘multiple Killing horizon’ and analyzed some of its general properties. Multiple Killing horizons are Killing horizons for two or more linearly independent Killing vectors simultaneously. In this paper we focus on the vacuum case, possibly with cosmological constant, and study the emergence of multiple Killing horizons in terms of characteristic initial value problems for two transversally intersecting null hypersurfaces. As a relevant outcome, a more general definition of near horizon geometry is put forward. This new definition avoids the use of Gaussian null coordinates associated to the corresponding degenerate Killing vector and thereby allows for inclusion of its fixed points.
Five degrees of freedom test mass readout via optical levers
Authors: Huarcaya V , Apelbaum G , Haendchen V , Wang Q , Heinzel G , Mehmet M 
Published: December 2019

Abstract
High precision measurement of all six degrees of freedom of freely floating test masses is necessary for future gravitational space missions as the sensing noise is frequently a limiting factor in the overall performance of the instrument. Femto-meter sensitivity has been demonstrated with LISA Pathfinder which used a complex laser interferometric setup. However, these measurements where restricted to the length changes in one degree of freedom only. When aiming for sensing multiple degrees of freedom, typically capacitive sensing is used, which facilitates a compact setup but does not provide competitive precision. An alternative approach to improve the sensitivity beyond capacitance readout systems and to reduce the complexity of the setup, is to use optical levers. Here, we report on the realization of a test mass sensing system by means of a modulation/demodulation technique in combination with four optical levers detected by quadrant photodiodes. The results of our table-top experiment show that this configuration allows us to extract information on five degrees of freedom of a cubic test mass. With basic off-the-shelf laser diodes we demonstrate an angular resolution of below 600 nrad

at frequencies between 10 mHz and 1 Hz (which is better than a conventional autocollimator) while simultaneously measuring the linear motion of the test mass with a precision of better than 300 nm

in the same frequency band. Extension of the geometry will enable optical sensing of all six degrees of freedom of the test mass.
Adaptive background noise bias suppression in contrast-free ultrasound microvascular imaging
Authors: Nayak Rohit , Fatemi Mostafa , Alizad Azra 
Published: December 2019

Abstract
Non-invasive, contrast-free imaging of small vessel blood flow is diagnostically invaluable for detection, diagnosis and monitoring of disease. Recent advances in ultrafast imaging and tissue clutter-filtering have considerably improved the sensitivity of power Doppler (PD) imaging in detecting small vessel blood flow. However, suppression of tissue clutter exposes the depth-dependent time-gain compensated noise bias that noticeably degrades the PD image. We hypothesized that background suppression of PD images based on noise bias estimated from the entire clutter-filtered singular value spectrum can considerably improve flow signal visualization compared to currently existing techniques.
To test our hypothesis, in vivo experiments were conducted on suspicious breast lesions in 10 subjects and deep-seated hepatic and renal microvasculatures in four healthy volunteers. Ultrasound PD images were acquired using a clinical ultrasound scanner, implemented with compounded plane wave imaging. The time gain compensated noise field was computed from the clutter-filtered Doppler ensemble (CFDE) based on its local spatio-temporal correlation, combined with low-rank signal estimation. Subsequently, the background bias in the PD images was suppressed by subtracting the estimated noise field.
Background-suppressed PD images obtained using the proposed technique substantially improved visualization of the blood flow signal. The background bias in the noise suppressed PD images varied  <0.6 dB, independent of depth, which otherwise increased up to 13.8 dB. Further, the results demonstrated that the proposed technique efficaciously suppressed the background noise bias associated with smaller Doppler ensembles, which are challenging due to increased overlap between blood flow and noise components in the singular value spectrum.
These preliminary results demonstrate the utility of the proposed technique to improve the visualization of small vessel blood flow in contrast-free PD images. The results of this feasibility study were encouraging, and warrant further development and additional in vivo validation.
Characteristics and Optical Properties of Fluorine Doped SnO2 Thin Film Prepared by a Sol–Gel Spin Coating
Authors: Susilawati  , Doyan A. , Muliyadi L. , Hakim S. , Taufik M. , Nazarudin  
Published: December 2019

Abstract
This study aims to determine the optical properties of thin films which include absorbance, transmittance, energy band gap, and activation energy characterized by UV-Visible spectrophotometer (UV-vis) with a wavelength of 200-1100 nm. Tin dioxide (SnO2) films are prepared by doping various Fluoride ion (F-) concentrations (0, 5, 10, 15, 20 and 25%) on glass substrates using the sol-gel spin coating method. The absorption edge of SnO2 thin films was found to accrue from 2.90 to 4.41 at 300 nm wavelength when the F- doped concentration increased from 0 to 25%. Furthermore, the transmittance also increased from 65.5 to 97.8% towards the wavelengths from 300 to 350 nm. However, the band gap and activation energies obtained decreased with a percentage increase in fluorine doping. The energy band gap decreased from 3.55-3.41 eV and 3.90-3.84 eV for direct as well as indirect allowed respectively, while the activation energy decreased from 4.04-1.99 eV. The band-gap energy of SnO2 thin films also decreased, and the electrons adjustment from the valence to conduction band caused the conductivity of the film to increase.
The effect of immersion temperature using chlorophyll sensitizer (Amaranthus hybridus L.) on the performance of dye-sensitized solar cells
Authors: Nurosyid F. , Pratiwi D. D. , Kusumandari K. 
Published: December 2019

Abstract
This article investigated the effect of immersion temperature on the TiO2 film using chlorophyll extract for dye-sensitized solar cells (DSSC). The chlorophyll was extracted from spinach leaves with ethanol solvent. The solution of spinach extract was used for the immersion process on the TiO2 film. The immersion temperatures were varied of 283 K, 303 K and 323 K. The optical properties of TiO2/dye films were analyzed by UV-Vis and Fourier Transform Infrared (FTIR) spectrophotometers. The DSSCs performance were characterized by I-V meter. The highest absorbance was revealed from the immersion temperature of 303 K. Characteristic of FTIR spectra resulted a maximum transmittance of 67.2% at the frequency peak of 3341 cm−1. Additionally, these results directly proportional with the maximum performance of DSSC at immersion temperature of 303 K. The best performance of DSSCs was obtained the Voc, Isc, and conversion efficiency values of 0.43 V, 0.16 mA and 0.04%, respectively.
Profile of Students’ Creative Thinking Skills using Open-ended Multiple Choice Test in Science Learning
Authors: Pratiwi R. D. , Ashadi  , Sukarmin  
Published: December 2019

Abstract
This study aimed to know the profile of students’ creative thinking skills in grade VII of junior high school during the process of science learning. This study was carried out using quantitative-descriptive method. Data collection were done by using open-ended multiple-choice tests based on students’ creative thinking skills indicators. The test was previously validated by learning evaluation experts. Validity of test items were determined using Karl-Pearson formula related to product moment correlation coefficient. Reliability of tests were determined using Alpha-Cronbach formula. Difficulty level and discriminating power were also used as item parameters development of test instruments in this study. The sample taken in this study was 256 students which consisted of all seventh grade students in SMP Negeri 1 Jaten selected through purposive sampling technique due to identify students’ creative thinking skills. The results of this study showed that students’ creative thinking skills on each indicator were 49% of fluency which was in the low category, 72% of flexibility which was in the medium category, 34% of originality which is in the low category, and 35% of elaboration which is in the low category. The conclusion from this research is that creative thinking skill of the students still was in low category, so that needed a way to enhance it on some indicators.