bluuebunny/crossref_metadata_2025_split huggingface dataset:
Role of Consortium in Academic Libraries: a case study of IISERs
Authors: Srivastava Ruchi 
Published: July 2017

With the information revolution brought about by the development of the World Wide Web, libraries at every level have graduated from their traditional role as store houses of information to vigorous disseminators of information. This is necessary given the changing information seeking habits and spiraling expectations of users. Online periodicals have also encroached upon acquisitions budgets. Any library consortia often focuses on the benefits a member library expects to receive in return for its paid membership in a consortium. This paper discusses the need and role of consortia specially in academic libraries with special reference to Indian Institute of Science Education and Research established by MHRD to promote basic science education in India
Characterization of Birkhoff’s Conditions by Means of Cover-Preserving and Partially Cover-Preserving Sublattices
Authors: Łazarz Marcin 
Published: July 2017

In the paper we investigate Birkhoff’s conditions (Bi) and (Bi*). We prove that a discrete lattice L satisfies the condition (Bi) (the condition (Bi*)) if and only if L is a 4-cell lattice not containing a cover-preserving sublattice isomorphic to the lattice S*7 (the lattice S7). As a corollary we obtain a well known result of J. Jakub´ık from [6]. Furthermore, lattices S7 and S*7 are considered as so-called partially cover-preserving sublattices of a given lattice L, S7 ≪ L and S7 ≪ L, in symbols. It is shown that an upper continuous lattice L satisfies (Bi*) if and only if L is a 4-cell lattice such that S7 ≪/ L. The final corollary is a generalization of Jakubík’s theorem for upper continuous and strongly atomic lattices. Keywords: Birkhoff’s conditions, semimodularity conditions, modular lattice, discrete lattices, upper continuous lattice, strongly atomic lattice, cover-preserving sublattice, cell, 4-cell lattice.
Some Algebraic and Algorithmic Problems in Acoustocerebrography
Authors: Kolany Adam , Wrobel Miroslaw 
Published: July 2017

Progress in the medical diagnostic is relentlessly pushing the measurement technology as well with its intertwined mathematical models and solutions. Mathematics has applications to many problems that are vital to human health but not for all. In this article we describe how the mathematics of acoustocerebrography has become one of the most important applications of mathematics to the problems of brain monitoring as well we will show some algebraic problems which still have to be solved. Acoustocerebrography ([4, 1]) is a set of techniques of visualizing the state of (human) brain tissue and its changes with use of ultrasounds, which mainly rely on a relation between the tissue density and speed of propagation for ultrasound waves in this medium. Propagation speed or, equivalently, times of arriving for an ultrasound pulse, can be inferred from phase relations for various frequencies. Since, due to Kramers-Kronig relations, the propagation speeds depend significantly on the frequency of investigated waves, we consider multispectral wave packages of the form W (n) = ∑Hh=1 Ah · sin(2π ·fh · n/F + ψh), n = 0, . . . , N – 1 with appropriately chosen frequencies fh, h = 1, . . . ,H, amplifications Ah, h = 1, . . . ,H, start phases ψh, h = 1, . . . , H and sampling frequency F. In this paper we show some problems of algebraic and, to some extend, algorithmic nature which raise up in this topic. Like, for instance, the influence of relations between the signal length and frequency values on the error on estimated phases or on neutralizing alien frequencies. Another problem is finding appropriate initial phases for avoiding improper distributions of peaks in the resulting signal or finding a stable algorithm of phase unwinding which is resistant to sudden random disruptions.
Chronic Health Conditions and Key Health Indicators Among Lesbian, Gay, and Bisexual Older US Adults, 2013–2014
Authors: Fredriksen-Goldsen Karen I. , Kim Hyun-Jun , Shui Chengshi , Bryan Amanda E. B. 
Published: July 2017

Objectives. To examine disparities in chronic conditions and health indicators among lesbian, gay, and bisexual (LGB) adults aged 50 years or older in the United States. Methods. We used data from the 2013 and 2014 National Health Interview Survey to compare disparities in chronic conditions, health outcomes and behaviors, health care access, and preventive health care by sexual orientation and gender. Results. LGB older adults were significantly more likely than heterosexual older adults to have a weakened immune system and low back or neck pain. In addition, sexual minority older women were more likely than their heterosexual counterparts to report having arthritis, asthma, a heart attack, a stroke, a higher number of chronic conditions, and poor general health. Sexual minority older men were more likely to report having angina pectoris or cancer. Rates of disability and mental distress were higher among LGB older adults. Conclusions. At substantial cost to society, many disparities in chronic conditions, disability, and mental distress observed in younger LGB adults persist, whereas others, such as cardiovascular disease risks, present in later life. Interventions are needed to maximize LGB health.
Designing and using informal learning spaces to enhance student engagement with mathematical sciences.
Authors: Waldock Jeff 
Published: July 2017

By helping create a shared, supportive, learning community, the creative use of custom designed spaces outside the classroom has a major impact on student engagement. The intention is to create spaces that promote peer interaction within and across year groups, encourage closer working relationships between staff and students and support specific coursework activities - particularly group work. Such spaces make better use of time since students are motivated to stay and work during long gaps in their timetable, provide a sense of 'home' within the institution and can lead to a cohesive community of practice. We describe how this has been achieved and currently delivered in Mathematics at Sheffield Hallam University and provide evidence for its success.
Playing Games: A Case Study in Active Learning Applied to Game Theory
Authors: Knight Vincent 
Published: July 2017

This paper describes two active learning activities which aims to introduce
students to the game theoretic concepts of best response dynamics and
repeated game analysis.

An overview of some literature on active learning and the benefits therein
is provided. This highlights that activities such as the one described
in this manuscript, not only help engage students but more importantly
improve their learning and understanding.

The final section of this work describes how these activities fit in the
pedagogic framework of a particular undergraduate mathematics class.
Students generate data that can be used as context for the understanding of
theoretic concepts. It is suggested that this framework is not restricted to
the subject of game theory.
Clinical and radiological assessment of the use of Bio-Gen Mix xenografts in jaw bone defects
Authors: Rahnama Mansur , Łobacz Michał , Czupkałło Łukasz 
Published: July 2017

Wstęp: Tradycyjne metody postępowania i wykonywania zabiegów z zakresu chirurgii stomatologicznej zazwyczaj prowadzą do bezpowrotnej utraty uzębienia i powstania typowego ubytku wysokości i szerokości kości grzbietu wyrostka zębodołowego. Celem niniejszego badania była ocena gojenia się ubytków kostnych po zastosowaniu materiału kościozastępczego Bio-Gen Mix.Materiały i metody: Grupę badaną stanowiło 42 pacjentów leczonych z powodu obecności torbieli zębopochodnych, zmian okołowierzchołkowych przy zębach wymagających przeprowadzenia zabiegu resekcji wierzchołka korzenia oraz pacjentów wymagających poekstrakcyjnych zabiegów augmentacyjnych, jak również zabiegów sterowanej regeneracji kości przed planowanymi zabiegami implantacji z użyciem ksenogennego materiału kościozastępczego Bio-Gen Mix.Wyniki: Wyniki oceny radiologicznej i klinicznej podsumowano za pomocą 3-stopniowej skali oceniającej proces gojenia ubytków śródkostnych, zaproponowanej przez Gutmanna i Harrison, a zmodyfikowanej przez Taschieri i wsp.Wnioski: W przypadku niewielkich deficytów tkanki kostnej wystarczające jest wykorzystanie substytutów kości, chociażby preparatów pochodzenia wołowego, takich jak Bio-Gen Mix. Uzyskuje się w ten sposób dobry rezultat, dość szybką przebudowę tkanki kostnej, której jakość w dużej mierze wystarcza do prowadzenia dalszego leczenia implantoprotetycznego.
Preferencje pracowników ochrony zdrowia w zakresie form zatrudnienia
Authors: Kolwitz Marcin , Pierzak-Sominka Joanna , Radlińska Iwona , Kemicer-Chmielewska Ewa 
Published: July 2017

Wstęp: Pracownicy ochrony zdrowia: pielęgniarki, położne oraz ratownicy medyczni wykonują swą pracę na podstawie rożnych form zatrudnienia (umowy opracę, praktyki prywatnej, umowy cywilnoprawnej).Celem pracy było poznanie preferencji przedstawicieli tych zawodów w zakresie najbardziej pożądanych przez siebie form zatrudnienia oraz zbadanie, czy pracownicy wykonują pracę w preferowanej przez siebie formie, a także poznanie czynników wpływających na te preferencje.Materiały metody: Badaniem objęto 202 osoby wykonujące pracę w zawodach medycznych (128 pielęgniarek, 42 położne, 32 ratowników medycznych). Wbadaniach wykorzystano autorski kwestionariusz ankiety pozwalający na realizację celów badań.Wyniki: Zarówno wśród pracowników medycznych zatrudnionych w podmiotach leczniczych na umowę o pracę, jak i prowadzących własną praktykę oraz zatrudnionych na podstawie tzw. kontraktu odnotowano istotną statystycznie zależność pomiędzy wykonywaną a deklarowaną formą zatrudnienia. W obu grupach większość pracowników deklarowała chęć kontynuowania dotychczasowej formy zatrudnienia, przy czym znacznie większy odsetek takich osób zanotowano wśród zatrudnionych na podstawie umowy o pracę (p < 0,000001).Wnioski: Większość badanych preferuje jako formę zatrudnienia umowę o pracę. Wpływ na tę preferencję mają takie czynniki jak „ochrona zatrudnienia” i„ochrona socjalna”. Wśród osób preferujących samozatrudnienie czynnikiem motywującym jest możliwość uzyskania wyższych dochodów. Pracownikom ochrony zdrowia należy zapewnić rzeczywistą swobodę wyboru formy zatrudnienia zgodnie z ich preferencjami.
The Information Content and Integration of Distributed-Temperature-Sensing Data for Near-Wellbore-Reservoir Characterization
Authors: Xu Bohan , Forouzanfar Fahim 
Published: July 2017

SummaryDownhole-temperature measurements provide valuable data for characterizing the flow between the reservoir and wellbore, which in turn is a function of the individual-reservoir-layer properties. In this paper, we investigate the use of downhole-temperature-profile data, provided from distributed-temperature-sensing (DTS) systems, as a cost-effective and robust alternative to other common approaches, such as use of data from production-logging tools, for estimating the formation properties and production profile along the wellbore. Previous applications of history-matching techniques by use of downhole-temperature-profile data have been mostly limited to simple reservoirs, and the quality of their results was unacceptable for more-complex cases. In this work, we present the evaluation and application of temperature-profile data from DTS systems for uncertainty reduction in the reservoir description. We focus on the characterization of multilayer multiphase reservoir cases with a high degree of vertical heterogeneity. First, by use of the principles of information theory, we investigate the information content of the temperature-profile data regarding various reservoir properties. By computing the mutual information between the reservoir parameters and the temperature-profile data, the reservoir properties with higher influence on the reservoir- and wellbore-temperature-profile data are identified. The associated uncertainty in these reservoir properties can be reduced by assimilating the downhole-temperature-profile data. Through these analyses, we also present an estimation for the expected reduction of uncertainty in the reservoir properties by assimilating the temperature data. Then, we apply the ensemble-smoother-with-multiple-data-assimilation (ES-MDA) algorithm to estimate the reservoir properties selected by use of our previous analysis. The set of observed data contains the wellbore-temperature profile, the temperature profile of the reservoir adjacent to the wellbore, and the flowing bottomhole pressure (BHP) of the well at a reference depth. We investigate the performance of the history-matching algorithm by use of various combinations of these observed data for estimating the properties of a synthetic layered reservoir. In addition, the implementation of a doubly stochastic model is also investigated to account for possible uncertainties in the prior mean of the reservoir properties. Our results show that the downhole-temperature-profile data contain a significant amount of information regarding the permeability and porosity of the reservoir layers. Moreover, the use of temperature-profile data within the ES-MDA history-matching algorithm is able to provide a good estimation of these properties and significantly reduce the uncertainty in the reservoir description.
Nondestructive Leaf Area Estimation for Chia
Authors: Mack Laura , Capezzone Filippo , Munz Sebastian , Piepho Hans‐Peter , Claupein Wilhelm , Phillips Tim , Graeff‐Hönninger Simone 
Published: July 2017

Core Ideas
Leaf area in chia cannot be accurately predicted by the product of leaf width and length.
Regressing leaf area log linearly on width and length accounts for change of shape with size.
We provide accurate prediction models valid across experiments, populations, and N levels.
Mixed‐model meta‐regression allows integrating leaf area data across experiments.
Leaf area (LA) is an important agronomic trait but is difficult to measure directly. It is therefore of interest to estimate LA indirectly using easily measured correlated traits. The most commonly used approach to predict LA uses the product of leaf width (LW) and leaf length (LL) as single predictor variable. However, this approach is insufficient to estimate LA of chia (Salvia hispanica L.) because the leaves are differently shaped depending on leaf size. The objectives of this study were to develop a nondestructive LA estimation model for chia using LW and LL measurements that can take differences in leaf shape into account and to determine whether population and nitrogen fertilizer level have an effect on the accuracy of a LA estimation model. A total of 840 leaves were collected from five different field experiments in 2015 and 2016 conducted in southwestern Germany. The experiments comprised eight populations of black‐ and white‐seeded chia (07015 ARG, 06815 BOL, 06915 ARG, G8, G7, G3, W13.1, and Sahi Alba 914) and three nitrogen fertilizer levels (0, 20, and 40 kg N ha−1). We used meta‐regression to integrate the data accounting for heterogeneity between experiments, populations, and nitrogen levels. The proposed LA estimation model with two measured predictor variables (LL and LW) was LA = 0.740 × LL0.866 × LW1.075 and provided the highest accuracy across populations and nitrogen levels [r = 0.989; mean squared deviation (MSD) = 2.944 cm4]. The model LA = 1.396 × LW1.806 with only LW was almost as accurate (r = 0.977; MSD = 5.831 cm4).
The Impact of Inquiry-based Learning approach on Critical Thinking Skill of EFL Students
Authors: Ghaemi Farid , Mirsaeed Seyed Javad Ghazi 
Published: July 2017

To modify the way how the students are getting ready to encounter the needs of the new era, some other different teaching approaches are under research. Inquiry-based learning is such a method supposed to empower the skills students need to master. The hypothesis was that inquiry-based learning can have impact on critical thinking ability of students. The data was from language learners at Guyesh language institute placed in Alborz(Iran). To homogenize the participants, they had a language proficiency test (PET) as pre-test. Out of 62 students, 38 students were selected. The learners were put into one experimental and one control group based on their exam results. The researchers used independent sample T–Test to measure the statistical differences between the two groups. Before receiving instruction the students completed a critical thinking questionnaire. After sessions of inquiry-based instruction, the researchers gave the post-tests to both experimental and control groups. Finally, the results of the analysis of the data ensured that doing inquiry-based activities increased critical thinking ability of the subjects. The outcome of this study confirmed that participation in inquiry-based learning class had a significant impact on learners’ critical thinking skill.
Survival of Hypercapnic Patients with COPD and Obesity Hypoventilation Syndrome Treated with High Intensity Non Invasive Ventilation in the Daily Routine Care
Authors: Blankenburg Thomas , Benthin Christin , Pohl Stefanie , Bramer Anett , Kalbitz Frank , Lautenschläger Christine , Schütte Wolfgang 
Published: July 2017

Background:Home ventilation is an effective treatment option for obesity hypoventilation syndrome (OHS). This therapy is still controversial for stable chronic obstructive pulmonary disease (COPD). A recent study showed reduced mortality for COPD patients receiving home ventilation with high inflation pressures and back-up respiratory rates [so called High Intensity non-invasive ventilation (NIV)].Objective:The purpose of this study is whether High Intensity NIV applied in the routine care of COPD and OHS patients can lead to CO2reduction and survival data comparable to data from controlled studies.Method:In this prospective non interventional study fifty-one patients with COPD (FEV1 0.95l, corr. 32.8%) and 34 patients with OHS (VC 1.74l, corr. 50.7%) with chronic hypercapnic respiratory failure, who were treated with NIV were followed up for four years.Results:Elevated CO2values before NIV in COPD patients (8.6kPa), and in OHS patients (8.3kPa), could be lowered significantly to the upper normal range (COPD: 5.9kPa; OHS: 5.85kPa). The one-, two-, and three-year survival rates for COPD patients were 83%, 73%, and 55%, respectively. The one-, two-, and three-year survival rates for OHS patients were 85%, 72%, and 68%, respectively.Conclusion:High intensity NIV within routine care is effective in reducing blood CO2levels in COPD- and in OHS- related chronic respiratory insufficiency. The survival rates obtained here are comparable to data from controlled clinical trials on COPD.
Landlocked Fall Chinook Salmon Maternal Liver and Egg Thiamine Levels in Relation to Reproductive Characteristics
Authors: Doyle Andrew , Barnes Michael E. , Kientz Jeremy L. , Zehfus Micheal H. 
Published: July 2017

Object:Landlocked fall Chinook SalmonOncorhynchus tshawytschain Lake Oahe, South Dakota, typically experience poor reproductive success.Introduction:Salmon diets consist of rainbow smeltOsmerus mordaxand other potentially thiaminase-containing fish that could impact reproduction.Methods:The thiamine levels of spawning female Salmon, eggs, and reproductive characteristics, were measured in 2000, 2001, 2002, 2003, and 2005.Results:Thiamine concentrations varied significantly from year-to-year, with the highest mean values recorded in 2001 at 8.70 nmol/g in maternal livers and 28.80 nmol/g in eggs. Most of the thiamine in the eggs was present as free thiamine, while most of the thiamine in maternal livers was present as thiamine pyrophosphate. The lowest recorded egg total thiamine level was 2.75 nmol/g in 2000. Egg survival to hatch ranged from 20.7% in 2005 to 35.4% in 2002, and was not correlated to egg thiamine levels. Twenty-two spawns experienced total mortality prior to hatch, and had significantly lower egg free thiamine and total thiamine concentrations than eggs from the 77 successful spawns. The eggs from spawns with total mortality were also significantly smaller than those eggs from spawns that did survive, and were produced by females that weighed significantly less. Several small, but significant, correlations were observed between egg size and egg thiamine levels, and female size and liver thiamine.There was also a significant negative correlation between the number of eggs per spawning female and egg thiamine pyrophosphate, liver thiamine monophosphate, and liver total thiamine levels.Conclusion:In general, Lake Oahe Chinook Salmon eggs show little indication of thiamine deficiency in the years sampled, indicating other factors are likely responsible for poor egg survival.
HUBUNGAN KETERPAPARAN MEDIA MASSA, PERAN TEMAN SEBAYA TERHADAP TINDAKAN SEKSUAL DI SMA AN-NAAS
Authors: Istawati Rika 
Published: July 2017

<p><em>Masa remaja merupakan masa peralihan antara tahap anak dan dewasa dimana pada masa ini mereka sangat rentan terpapar informasi dari media massa dan teman sebaya terutama seks bebas. Data SKRRI mempunyai teman yang pernah berhubungan seksual pada usia 14-19 tahun dengan persentasi perempuan 37,7% dan laki-laki 30,9% dan Kementerian Komunikasi dan Informasi menyebut 62,1% siswa mengaku penah melakukan hubungan seks. Observasi yang di lakukan oleh peneliti di SMA AN-NAAS Pekanbaru diketahui adanya 2 siswa yang tertangkap menyimpan dan menonton video porno di handphone dan melalui wawancara peneliti dengan 8 siswi mereka mengatakan adanya 1 siswi yang hamil diluar nikah dan 2 siswi diantaranya mengaku sering datang ketempat yang berisiko terhadap tindakan seksual. Tujuan Penelitian ini untuk mengetahui hubungan keterpaparan media massa dan peran teman sebaya terhadap tindakan seksual. Desain penelitian yang digunakan adalah cross sectional, populasi penelitian adalah seluruh siswa kelas SMA AN-NAAS Pekanbaru yaitu 123 responden. Sampel penelitian 94 orang dengan teknik stratified random sampling. Alat ukur yang digunakan adalah angket, data diolah menggunakan komputer. Analisa data secara univariat dan bivariat dengan uji chi square dengan ketentuan α (0,5). Hasil penelitian didapatkan uji statistik menunjukkan adanya hubungan keterpaparan media massa dengan tindakan seksual dimana nilai p value 0,000 &lt; 0,05, terdapat hubungan yang bermakna antara peran teman sebaya dengan tindakan seksual, dimana p value 0,001 &lt; 0,05. Bagi pihak sekolah diharapkan untuk meningkatkan kegiatan di sekolah seperti ekstrakurikuler dan guru membimbing serta memberi pengawasan yang ketat terhadap siswanya.</em></p><p> </p><p><em> </em></p><p> </p>