bluuebunny/crossref_metadata_2025 huggingface dataset:
Experimental Study of the Effect of Core Aging on Fluid Distribution in Middle Bakken Cores
Authors: Karimi Somayeh , Saidian Milad , Kazemi Hossein
Published: April 2016

Formation wettability is a critical parameter when designing enhanced oil recovery (EOR) for field applications both in conventional and unconventional reservoirs. In this study, we focused on one unconventional resource only—the Bakken. Specifically, we conducted laboratory experiments in five clean Middle Bakken cores having different initial fluid saturations to determine (1) where the fluids reside within the pores, and (2) the effect of aging on wettability change.

The experimental protocol included measuring porosity and permeability of five clean Middle Bakken cores. We saturated three cores with Bakken oil only, aged the cores at 180°F and 2,500 psi pressure for four weeks, and stored them in crude oil for one year at ambient laboratory conditions. Next, we used synthetic brine to produce oil from the aged cores by spontaneous imbibition in Amott cell; then, we produced additional oil with high-speed centrifuge.

For the remaining two cores, we saturated them with synthetic brine, displaced the brine with crude oil using centrifuge, and stored the cores in crude oil at ambient laboratory conditions for four months; then, we measured oil production from the cores by imbibition in Amott cell. For all the cores, we conducted NMR measurements after each fluid saturation/desaturation experiment to determine the effect of aging time and temperature on the core wettability and fluid distribution in the pores.

The experimental results indicated that Bakken crude, in absence of formation brine, did not alter the wettability of cores to oil-wet. NMR measurements indicated that brine resides in smaller pores and as a brine film on grains regardless of aging time, and the core fluids redistributed with time indicating a strong rock-fluid interaction. Finally, the analysis of oil production indicated the preponderance of chemical osmosis over imbibition as the mechanism of oil displacement.
Copper-based nanoparticles prepared from copper (II) acetate bipyridine complex
Authors: Lastovina Tatiana , Budnyk Andriy , Khaishbashev Gevorg , Kudryavtsev Egor , Soldatov Alexander
Published: April 2016

We report the synthesis of CuO, Cu/Cu2O and Cu2O/CuO nanoparticles (NPs) from
the single copper (II) acetate bipyridine complex by three different
methods:microwave-assisted, solvothermal and borohydride. Presence of
bipyridine ligand in the copper complex would impose no need in additional
stabilization during synthesis. The phases of formed NPs were identified by
X-ray diffraction. CuO NPs of ~11 nm were obtained via solvothermal synthesis
from alkaline solution at 160?C. The Cu/Cu2O NPs of ~80 nm were produced via
microwave-assisted polyol procedure at 185-200?C, where ethylene glycol can
play a triple role as a solvent, a reducing agent and a surfactant. The
Cu2O/CuO NPs of ~16 nm were synthesized by a borohydride method at room
temperature. Interplanar spacing calculated from the selected-area electron
diffraction data confirmed the formation of Cu, CuO and Cu2O phases in
respective samples. All NPs are stable and can be used for various
applications including biomedicine.
Comparison of the humoral response between sheep vaccinated with a killed-virus vaccine and those vaccinated with a modified-live virus vaccine against bluetongue virus serotype 17
Authors: Speiser Kelsie L. , Schumaker Brant A. , Cook Walter E. , Cornish Todd E. , Cammack Kristi M. , Miller Myrna M.
Published: April 2016

OBJECTIVE To compare the humoral response between sheep vaccinated with a killed-virus (KV) vaccine and those vaccinated with a modified-live virus (MLV) vaccine against bluetongue virus (BTV) serotype 17.

DESIGN Randomized clinical trial followed by a field trial.

ANIMALS 30 yearling crossbred ewes (phase 1) and 344 sheep from 7 Wyoming farms (phase 2).

PROCEDURES In phase 1, ewes seronegative for anti-BTV antibodies received sterile diluent (control group; n = 10) or an MLV (10) or KV (10) vaccine against BTV-17 on day 0. Ewes in the KV group received a second dose of the vaccine on day 21. Ewes were bred 5 months after vaccination and allowed to lamb. Anti-BTV antibodies were measured in ewes at predetermined times after vaccination and in their lambs once at 5 to 10 days after birth. In phase 2, 248 commercial sheep were screened for anti-BTV antibodies and vaccinated with a KV vaccine against BTV-17 on day 0. Sheep seronegative for anti-BTV antibodies on day 0 (n = 90) underwent follow-up serologic testing on day 365 along with 96 unvaccinated cohorts (controls).

RESULTS In phase 1, all vaccinated ewes developed anti-BTV antibodies by 14 days after vaccination and remained seropositive for 1 year; all of their lambs were also seropositive. All control ewes and lambs were seronegative. In phase 2, the prevalence of vaccinated sheep with anti-BTV antibodies 1 year after vaccination was 93% and 76% as determined by a serum neutralization assay and competitive ELISA, respectively.

CONCLUSIONS AND CLINICAL RELEVANCE Both vaccines induced antibodies against BTV-17 that persisted for at least 1 year and provided passive immunity for lambs and may be a viable option to protect sheep against disease.
What Can Veterinary Educators Learn from PE Teachers?
Authors: Hofmeister Erik H. , McCullick Bryan A.
Published: April 2016

Veterinary education requires the training of students in cognitive, affective, and psychomotor domains. However, the veterinary education literature tends to focus more on the cognitive domain, with less emphasis on the affective and psychomotor domains. Physical education (PE) teachers have been teaching psychomotor skills to students for decades using a variety of teaching models. Teaching models provide a framework encompassing theory, student and teacher interactions, instructional themes, research support, and valid assessments. This paper reviews some of the models used by PE teachers, including the Direct Instruction Model, the Cooperative Learning Model, the Personalized System for Instruction, and the Peer Teaching Model. We posit that these models might be particularly helpful for novice teachers in veterinary education settings, providing a structure for the teaching and assessment of psychomotor skills.
The Role of Hydrogen Bond in Designing Molecular Optical Materials
Authors: Dos Santos Leonardo , Macchi Piero
Published: April 2016

In this perspective article, we revise some of the empirical and semi-empirical strategies for predicting how hydrogen bonding affects molecular and atomic polarizabilities in aggregates. We use p-nitroaniline and hydrated oxalic acid as working examples to illustrate the enhancement of donor and acceptor functional-group polarizabilities and their anisotropy. This is significant for the evaluation of electrical susceptibilities in crystals; and the properties derived from them like the refractive indices.
The Free Energy Requirements of Biological Organisms; Implications for Evolution
Authors: Wolpert David
Published: April 2016

Recent advances in nonequilibrium statistical physics have provided unprecedented insight into the thermodynamics of dynamic processes. The author recently used these advances to extend Landauer’s semi-formal reasoning concerning the thermodynamics of bit erasure, to derive the minimal free energy required to implement an arbitrary computation. Here, I extend this analysis, deriving the minimal free energy required by an organism to run a given (stochastic) map π from its sensor inputs to its actuator outputs. I use this result to calculate the input-output map π of an organism that optimally trades off the free energy needed to run π with the phenotypic fitness that results from implementing π. I end with a general discussion of the limits imposed on the rate of the terrestrial biosphere’s information processing by the flux of sunlight on the Earth.
An Optimization System for Concrete Life Cycle Cost and Related CO2 Emissions
Authors: Kim Tae , Tae Sung , Suk Sung , Ford George , Yang Keun
Published: April 2016

An optimization system that supports the production of concrete while minimizing carbon dioxide (CO2) emissions or costs is presented that incorporates an evolution algorithm for the materials’ mix design stage, a trigonometric function for the transportation stage, and a stochastic model for the manufacturing stage. A case study demonstrates that applying the optimization system reduced CO2 emissions by 34% compared to the standard concrete production processes typically used. When minimizing the cost of concrete production was prioritized, the cost dropped by 1% compared to the cost of conventional concrete production. These findings confirm that this optimization system helps with the design of the concrete mix and the choice of a material supplier, thus reducing both CO2 emissions and costs.
Investigating organic multilayers by spectroscopic ellipsometry: specific and non-specific interactions of polyhistidine with NTA self-assembled monolayers
Authors: Solano Ilaria , Parisse Pietro , Cavalleri Ornella , Gramazio Federico , Casalis Loredana , Canepa Maurizio
Published: April 2016

Background: A versatile strategy for protein–surface coupling in biochips exploits the affinity for polyhistidine of the nitrilotriacetic acid (NTA) group loaded with Ni(II). Methods based on optical reflectivity measurements such as spectroscopic ellipsometry (SE) allow for label-free, non-invasive monitoring of molecule adsorption/desorption at surfaces.

Results: This paper describes a SE study about the interaction of hexahistidine (His6) on gold substrates functionalized with a thiolate self-assembled monolayer bearing the NTA end group. By systematically applying the difference spectra method, which emphasizes the small changes of the ellipsometry spectral response upon the nanoscale thickening/thinning of the molecular film, we characterized different steps of the process such as the NTA-functionalization of Au, the adsorption of the His6 layer and its eventual displacement after reaction with competitive ligands. The films were investigated in liquid, and ex situ in ambient air. The SE investigation has been complemented by AFM measurements based on nanolithography methods (nanografting mode).

Conclusion: Our approach to the SE data, exploiting the full spectroscopic potential of the method and basic optical models, was able to provide a picture of the variation of the film thickness along the process. The combination of δΔi+1,i(λ), δΨi+1,i(λ) (layer-addition mode) and δΔ†i',i+1(λ), δΨ†i',i+1(λ) (layer-removal mode) difference spectra allowed us to clearly disentangle the adsorption of His6 on the Ni-free NTA layer, due to non specific interactions, from the formation of a neatly thicker His6 film induced by the Ni(II)-loading of the NTA SAM.
Le deuil périnatal : la question de la reconnaissance sociale et juridique des bébés mort-nés
Authors: Alexandre Mélissa , Gaugue Justine
Published: April 2016

Peu importe le terme, vivre une perte périnatale implique une grande souffrance. Le manque de reconnaissance que les couples peuvent ressentir est susceptible de compliquer davantage le processus d’élaboration du deuil. Dans ce cadre, les gouvernements successifs tentent, depuis plusieurs années, en France et en Belgique, de modifier le cadre légal afin de reconnaître les bébés mort-nés plus précocement. Sur la base de la littérature existante, l’article se questionne dès lors sur les possibles évolutions du deuil périnatal à la lumière de ce contexte social et juridique. Bien que la mise en place de rituels et l’accompagnement proposé aux couples puissent les aider, il semble que la dimension sociale et collective, nécessaire à l’élaboration du deuil, continue de manquer.
Cancer en phase avancée et obstination déraisonnable
Authors: Misset Jean-Louis
Published: April 2016

Avec le développement des thérapeutiques médicales, la maladie cancéreuse parvenue au stade d’incurabilité évolue de plus en plus souvent selon un mode chronique, avec des épisodes de progression de la maladie séparés par des périodes de rémission, et ce sur plusieurs années. Au stade terminal, le patient est le plus souvent conscient, parfois valide et pourvu d’une certaine autonomie. Ces diverses caractéristiques rendent très difficile la détermination de la « fin de vie » et la mise en œuvre du concept d’« obstination déraisonnable » défini par la loi Leonetti.
Découverte d’une malformation de membre
Authors: Brennetot Naïma
Published: April 2016

L’annonce d’une malformation de membre chez le fœtus arrive comme une effraction violente dans l’imaginaire des futurs parents. Face à l’angoisse qu’elle suscite, la consultation anténatale propose un accompagnement pluridisciplinaire, organisé de manière à favoriser les échanges dans un climat de confiance. Ce qui s’y joue a valeur d’action préventive à part entière : pour le couple bien sûr, mais aussi pour les professionnels, voire pour l’enfant à venir.
Sémantique distributionnelle en linguistique de corpus
Authors: Heylen Kris , Bertels Ann
Published: April 2016

Dans le domaine du Traitement Automatique des Langues Naturelles (TALN), les modèles sémantiques distributionnels sont les piliers pour modéliser la sémantique lexicale à grande échelle (Turney & Pantel 2010). Ils sont fondés sur le calcul de la proximité sémantique entre mots sur la base des contextes partagés. La modélisation distributionnelle permet aux linguistes d’appuyer leurs analyses sur de grandes quantités de données authentiques et d’élargir la base empirique, pour ainsi détecter des motifs sémantiques intéressants (Geeraerts, 2010 : 165-178). Dans cet article, nous procédons à une présentation non technique de la modélisation sémantique distributionnelle et nous discutons une application lexicologique pour l’analyse de la polysémie. Finalement, nous présentons une méthode de visualisation qui permet aux experts humains d’interpréter les structures sémantiques cernées par les modèles distributionnels.
La traduction comme partage d’une instabilité originaire
Authors: Van Rooden Aukje
Published: April 2016

Dans cet article, l’auteur se concentre sur le raisonnement donné par Blanchot dans l’essai « Traduire » consacré au texte célèbre « La tâche du traducteur » de Benjamin. Elle montre que la conception de la traduction développée par Blanchot a motivé ses efforts pour l’édition de la Revue Internationale . L’auteur avance que cette revue était une tentative de penser et de construire autrement la communauté, non pas dans le giron d’une seule langue partagée, mais entre les langues.
Apprendre auprès des œuvres : la linguistique à l’école de la littérature
Authors: Rastier François
Published: April 2016

Si les études littéraires gagnent à resserrer leurs liens avec la linguistique, la réciproque n’est pas moins vraie. Cela contribue à émanciper cette discipline du positivisme ordinaire, l’engage à redéfinir ses unités et à prendre à considération la dimension textuelle de ses objets empiriques. Elle renoue ainsi avec la philologie et l’herméneutique, ainsi qu’avec le projet initial d’une discipline noblement auxiliaire attachée à la lecture des textes. Cette étude souligne les enjeux théoriques et descriptifs d’une connaissance ainsi objectivée de la littérature.
Décorum migratoire pour fable sociale
Authors: Damont Nicolas , Pégard Olivier
Published: April 2016

Le lien entre football et immigration ne se résume pas à l’accueil des footballeurs étrangers, mais renvoie à la société française dans son ensemble dès lors que des joueurs « issus de l’immigration » entrent en scène. Et quand une crise éclate au sein d’une équipe qu’on a rêvé en couleur, l’attachement des joueurs à la France est interrogé et la couleur de la peau fait problème. Ces questions traversent aussi les centres de formation, voie d’entrée obligatoire pour des jeunes qui visent le terrain professionnel.
Bleus et beurs ?
Authors: Blanchard Emmanuel
Published: April 2016

Le sport, et le football en particulier, sont généralement érigés en exemples quand il s’agit d’insister sur les vertus « intégratrices » de certaines activités et institutions. L’équipe de France de football est ainsi considérée comme la vitrine d’un « creuset français » au sein duquel se seraient successivement fondus les descendants des principales composantes de l’immigration ouvrière. Au-delà des exemples constamment brandis, une analyse des effectifs de l’équipe de France montre que les descendants d’Algériens ont été bien peu nombreux à être appelés chez les « Bleus ». Les rares élus ont d’ailleurs régulièrement vu la sincérité de leur patriotisme mise en cause.
Parcours d’obstacles
Authors: Damont Nicolas
Published: April 2016

Le football fait rêver et le destin, souvent mythifié, des joueurs des grands clubs européens alimente la fantasmagorie de jeunes à travers le monde. Au point que certains n’hésitent pas à tout quitter, attirés par l’eldorado européen, oubliant bien vite que la sélection est rude et les places très rares. Portrait de trois jeunes étrangers dont le rêve n’a pas viré au cauchemar… ni au conte de fées.
Protection des mineurs ou discrimination ?
Authors: Daadouch Christophe
Published: April 2016

En 2009, à la demande d’un club de football amateur parisien, la Ligue des droits de l’Homme alertait différentes autorités sur les pratiques discriminatoires à l’égard de joueurs mineurs étrangers sous couvert d’une législation protectrice édictée par les instances internationales du football. Si les abus dont sont victimes des milliers de jeunes étrangers rêvant de jouer dans des clubs européens sont réels, peut-on pour autant pénaliser les pratiques amateurs ?
Sobolev Embedding Theorem for Irregular Domains and Discontinuity of $p \to p^*(p,n)$
Authors: Roskovec Tomáš G.
Published: April 2016

For a domain

\Omega\subset\mathbb{R}^n

we denote

\begin{aligned}q_{\Omega}(p):=\operatorname{sup}\big\{r\in[1,\infty];\text{ for all } f:\Omega\rightarrow\mathbb{R}:(f\in W^{1,p}(\Omega)\Rightarrow f\in L^{r}(\Omega))\big\}. \end{aligned}

Let

p_0 \!\in \! [2,\infty).

We construct a domain

\Omega \! \subset \! \mathbb{R}^2

such that

q_{\Omega}(p)

is discontinuous at

p_0.
An Example of a Non-Trivial, Non-Self-Adjoint Huygens Differential Equation in Four Independent Variables
Authors: Czapor Stephanie R. , McLenaghan Raymond G.
Published: April 2016

A family of non-trivial, essentially non-self-adjoint wave equations which satisfy Huygens' principle is given. It is constructed on a 4-dimensional Lorentzian space which is a product of two 2-dimensional spaces of constant curvature. Prior to this example, the only known non-trivial Huygens equation was the scalar wave equation on the exact plane wave spacetime as presented by Günther.
О некоторых свойствах динамики коллапса в массивной и безмассовой релятивистской теории гравитации
Authors: Antipin Konstantin Vladislavovich , Dubikovsky Andrei , Silaev Petr Konstantinovich
Published: April 2016

Проведено численное и аналитическое исследование динамики коллапса в массивной и безмассовой релятивистской теории гравитации для разных уравнений состояния вещества. Это позволило уточнить характер динамики коллапса в случае массивной релятивистской теории гравитации, в частности, была установлена зависимость от массы гравитона для времени достижения точки поворота (т. е. точки перехода от сжатия к расширению). Для безмассовой релятивистской теории гравитации уточнена связь между известным решением общей теории относительности для холодной пыли и соответствующим решением релятивистской теории гравитации. Показано, что гармоническое время сингулярно, в том числе для гладкого распределения материи, соответствующего компактному объекту с существенно размытой границей, т. е. решение Оппенгеймера-Снайдера не может быть целиком вложено в пространство Минковского. Кроме того, исследовано влияние ненулевого давления на динамику коллапса.
Social Inequality and County-Level Correlates of State Prison Releases and Releases from Community Supervision
Authors: Helms Ronald , Costanza S. E. , Gutierrez Ricky S.
Published: April 2016

Prisoner reentry is an important contemporary policy concern as many ex-convicts reenter communities uneducated and unprepared to compete in local labor markets. This study uses data from the 2003 National Corrections Reporting Program (NCRP) for the states of California, Illinois and Washington to examine contextual correlates of reentry patterns. The analyses reveal systematic correlates of releases from both incarceration and community supervision that highlight a diverse array of difficulties for offenders returning to their home community. The results of this study underscore the often-difficult transitions facing reentering offenders and support policy implications for those who oversee reentry processes.
Distal phalangeal osteomyelitis of bilateral thumbs secondary to onychodystrophy – a case report with review of literature
Authors: Banshelkikar Santosh N. , Sheth Binoti A. , Goregaonkar Arvind B.
Published: April 2016

Distal phalangeal osteomyelitis of the thumb occurs rarely. Bilateral affection of the distal phalanges has not been described in the literature so far. Here, we present a case study of a patient who was successfully treated for distal phalangeal osteomyelitis of bilateral thumbs. A 65-year-old woman presented with bilateral thumb pain and swelling. She had dyschromic changes in the right nail and onychodystrophic changes in the left nail. On inquiry, she gave a history of applying nail enamel only to both thumbs for several years. Radiography of both the thumbs showed changes suggestive of osteomyelitis of the distal phalanges. She was treated successfully with debridement and sequestrectomy. Culture from necrotic tissue yielded polymicrobial flora. Onychodystrophy is relatively common and occurs secondary to infective as well as non-infective disorders of nails. Compulsive nail biting (onychophagia), nail picking, and allergic and irritant contact dermatitis secondary to cosmetic agents and household detergents are common predisposing factors. A high degree of suspicion of infective nail bed can aid in the early treatment of such cases with favorable outcome.
Effectiveness of Stress Management Consultation for Quality of Life and Stress of Women Suffering from Breast Cancer
Authors: Shayan Arezoo , Jamshidi Farkhondeh , Masoumi Seyedeh Zahra , Ataollahi Maryam , Gholamzadeh Saead , Zarenezhad Mohamad
Published: April 2016

BACKGROUND: Breast cancer is the most common cancer among women which endangers different aspects like individual, public health, and life quality.

OBJECTIVES: The aim of the present study is to investigate the consultation effectiveness of stress management on the quality of life and stress of women suffering from breast cancer.

METHODS: A semi-experimental research was performed with pre- and post-test design as well as control and test groups. For this purpose, 104 women suffering from breast cancer who referred to Mahdiyeh MRI and Hamedan Donors Assembly in 2015 were selected based on convenience sampling and randomly placed in two test and control groups including 52 people using permutation blocks. The test group received 9 two-hour consultation sessions of stress management, but the control group did not receive any consultation. Tools of gathering data included the questionnaire about demographic characteristics and standard questionnaire of life quality, (SF 36) and Harry's questionnaire completed by the patients of two groups before and at the end of the treatment. For the data analysis, descriptive statistics, two-factor variance, and multivariate covariance were used.

RESULTS: The results of the research showed that cognitive-behavioral therapy group of stress management showed an increase in the quality of life in dimensions of physical performance, emotional health, social performance, and public health, and total score of quality of life, but there was no significant effect in limitation dimensions causing emotional, energy and exhilaration, pain, and physical problems. A significant difference was observed in the average scores of stress in the test and control groups before and after the intervention (P 0.000) and stress of the test group compared to the control was reduced in the post-test and follow-up.

CONCLUSION: The obtained results showed that cognitive-behavioral therapy group of stress management had an increase inquality of life and its subscales and also experienced reduced stress in the test group after the intervention. Therefore, this method can be used as one of the complementary therapies besides medical therapy in oncology centers.
Concerns of Vietnamese Producing-exporting Seafood SMEs (VPESSMEs) on Supply Chain
Authors: Shieh-Liang Chen , Tran Nguyen Thi Huyen , Ha Nguyen Thi Thu
Published: April 2016

Supply chain has been discussed for many decades, however, previous researches have focused on the supply chain in general, in industrial fields or in developed countries. It is rare to find articles about supply chain in agricultural and fishing industries in a developing country like Vietnam. Moreover, there have been few researches using FsQCA in analyzing the factors affecting supply chain of small and medium enterprises (SMEs). This research focuses on using FsQCA to analyze the weight of factors that influence a supply chain of an industry which is one of the key exporting industries in Vietnam especifically seafood industry. Findings show that Vietnamese producing-exporting seafood SMEs (VPESSMEs) do not have any clear supply chain structure and sufficient consideration into building an effective supply chain. The authors would like to draw up some limitations of the supply chain management of Vietnamese producing-exporting seafood SMEs (VPESSMEs) then offer some suggestions especially for the fishing and agricultural industry.
Graft Copolymerization of Methlymethacrylate on Lignin Produced from Agricultural Wastes
Authors: Omotoso Mopelola Abeke , Ajagun Samuel Oluwatosin
Published: April 2016

Lignin was isolated from banana pseudo stem, palm frond and coconut husk. The moisture content of the banana pseudo stem and palm frond was determined gravimetrically. The lignin was isolated by alkaline hydrolysis with NaOH followed by precipitation with 72% H2SO4. The isolated lignin was then copolymerized with methyl methacrylate via free radical mechanism. The lignin and the corresponding copolymers were characterised by FTIR analysis.

The lignin content in banana pseudo stem, palm frond and coconut husk were respectively 16%, 14% and 13% while the grafting percentage of the corresponding lignin with methlymethacrylate (MMA) are 24%, 21% and 19%. These implied that production of lignin from agricultural wastes could reduce the latter solid wastes.

The FTIR analysis of the different lignin showed important peaks such as O-H band between 3433 cm-1 and 3450 cm-1; C=C band around 1515 cm-1 was absent in palm frond lignin; and C=O band was only observed in coconut husk lignin at 1696 cm-1.  There was a significant difference in the absorption band of the C-O (ether) of the lignin between 1107 cm-1and 1198 cm-1. The shift in the absorption peaks in the spectra of the isolated lignin for the different sources of the lignin and the grafting percentage corroborate the fact that the properties and composition of lignin depend on the source of the lignin. The FTIR analysis of the copolymers also showed two prominent peaks for C=O band between 1680 cm-1 and 1708 cm-1; and C-O (ester) between 1220 cm-1 and 1320 cm-1 that were absent in the lignin.  These confirm the presence of the acrylate functional groups.
A Study of 13C Chemical Shifts for a Series of 2-(4-methoxyphenyl)-substituted-3-phenyl-1,3-thiazolidin-4-ones
Authors: Mannikarottu Chino , Tierney John , Cannon Kevin C. , Mascavage Linda , Lagalante Anthony
Published: April 2016

The 13C substituent chemical shifts C-2, C-4 and C-5 (with a particular focus at C-2) for disubstituted 2,3-diphenylthiazolidin-4-ones with one substituent in each phenyl ring are systematically being investigated. The substituents in question are p-NO2, m-NO2, p-F, m-F, p-Cl, m-Cl, p-Br, m-Br, H, p-CH3, m-CH3, p-OCH3 and m-OCH3. This combination of substituents leads to a 13 x 13 matrix array of compounds with the fixed substituents in the 2-phenyl ring constituting the columns and the fixed substituents in the 3-phenyl rings constituting the rows. Including this present study, 81 of the total 169 compounds in the matrix have been analyzed. A single para-methoxy group interacting with another fixed substituent, as measured by 13C substituent chemical shift values at C-2 in either the C-2 phenyl or N-3 phenyl rings, shows little deviation. This changes however when the moiety is either an alkyl group at N-3 or when a para-methoxy group is the fixed substituent on the N-3 phenyl ring. This present study shows that a para-methoxy group on a C-2 phenyl ring shows a similar deviation in the efficacy in the transmission of electronic effects witnessed in this set of matrix compounds and mimics the issues seen with a previously studied para-methoxy substituted system with the para-methoxy group on the N-3 phenyl ring. Reasons for these aberrations are discussed.
Dynamic Long Memory High Frequency Multipower Variation Volatility Evaluations for S&P500
Authors: Chin Wen Cheong , Cherng Lee Min , Pei Pei Tan , Ching Yap Grace Lee , Nya Ling ChristineTan
Published: April 2016

This study explores the multipower variation integrated volatility estimates using high frequency data in financial stock market. The different combinations of multipower variation estimators are robust to drastic financial jumps and market microstructure noise. In order to examine the informationally market efficiency, we proposed a rolling window estimate procedures of Hurst parameter using the modified rescale-range approach. In order to test the robustness of the method, we have selected the S&P500 as the empirical data. The empirical study found that the long memory cascading volatility is fluctuating across the studied period and drastically trim down after the subprime mortgage crisis. This time-varying long memory analysis allow us to understand the informationally market efficiency before and after the subprime mortgage crisis in U.S.
Evaluation of Maturity Level of QSE Management Systems: Empirical Analysis, Case of Moroccan Companies
Authors: Moumen Mariyam , El Aoufir Houda
Published: April 2016

Nowadays, the adoption of management systems dedicated to quality, environment and safety in company have become real issues, a competitive argument. They also have a reputation and international recognition. For some companies, they become like a prerequisite for their proper development.The aims of this paper is to understand how the Moroccan organizations who have an Integrated Management System integrate their management systems and the way that they perceive the challenges of managing several management systems in parallel over time. According to a survey carried out with thirty four Moroccan firms, we analyze empirically the implementation of different MSs such as: ISO 9001, ISO 14001 and OHSAS 18001. Specially, we evaluate the integration levels of different management systems elements such as humans and documentation resources, objectives, procedures and audit. We analyze also the perceptions of companies about the advantages and the challenges encountered into the integration of Management Systems in organizations with more than one Management system.
Optimization of Nurse Numbers in Emergency Department of a District Hospital in a Developing Country Iran, 2014
Authors: Janati Ali , Nejad Djavad Ghoddoosi , Ariafar Mehdi , Roghayyeh Mirshojaee Seyyedeh , Mahdavi Moghaddam Mohammad , Ghodousi Nejad Saaied , Ghodousi Nejad Majid , Arab Zozani Morteza , Vafaee Ali , Baghban Baghestan Elham
Published: April 2016

Background: this study aims to optimize nurse numbers in emergency department of a district hospital in Iran using linear programming.

Material and methods: through observation and checklist data about average patient arrival, delivery time of care services needed for patients and number of nurses were obtained. Using linear programming optimum number of nurse needed for right delivery of services was calculated.

Results: optimum number of nurses was calculated as 12 nurses, but because of some issues in 3rd shift, real number of nurses needed for a 24 hours period is equal to 16 (12+4) nurses (12 as minimum needed plus nurses who stay and don’t leave the 3rd shift till tomorrow morning).
Conclusion: Using LP models can be useful for estimating optimum number of nurses for different wards of hospitals, so they can reduce their costs and reach more productivity.
Impact of Location-Behavior on Sense of Belonging to Place
Authors: Sakhaeifar Alaleh , Ghoddusifar S. Hadi
Published: April 2016

Sense of belonging is one of criteria of evaluating high quality environments and is addressed by environmental designers and it emphasizes on environment social activities and relations of physical component. A lot of activities and social interaction between individuals take place in a specific location over time and this brings about such expectation that those activities are specified to that space or location and over time the emerged behavior in that space induce sense of belonging and local identity for that space among those individuals. Sense of belonging to an environment arises from social interactions in the environment including information and social common signs. This research is conducted with the aim of examining location behaviors and its impact on local sense of belonging. It is examined the literature with cognitive research method and with approach of ontology and epistemology. in this paper with the aim of introduction and defining concepts such as location-behavior, identity and sense of belonging to place, based on review of relating documents and resources in this respect one examines the impact of location behavior in the Enqelab street and district of college bridge. Research results suggest that among effective parameters in sense of place, location behaviors and activity influence greatly on identity of urban spaces.
La ética del cuidado y Carol Gilligan: una crítica a la teoría del desarrollo moral de Kohlberg para la definición de un nivel moral postconvencional contextualista
Authors: Medina Vicent Maria
Published: April 2016

El presente artículo pretende realizar un acercamiento a los estudios sobre el razonamiento moral humano desarrollados por Lawrence Kohlberg[1] así como a la crítica realizada por parte de Carol Gilligan a dicho trabajo. Abordaremos pues, la teoría del desarrollo moral de Kohlberg, adentrándonos en los niveles morales preconvencional, convencional y postconvencional, con el objetivo de discernir si esta explicación evolutiva de la moralidad humana adquiere un carácter universal, o si por el contrario, se refiere a las estructuras morales de un grupo humano concreto. Más tarde, nos introduciremos en la crítica de Gilligan[2] hacia dichos niveles morales, haciendo hincapié en la necesidad de incorporar las particularidades contextuales en la noción de razonamiento moral para definir un nivel postconvencional contextualista, que nos permita confrontar las nociones de ética de la justicia y ética del cuidado.

[1] Kohlberg, L., The Philosophy of Moral Development, San Francisco, Harper & Row, 1981.

[2] Gilligan, C., In a Different Voice: Psychological Theory and Women’s Development, Cambridge, Harvard University Press, 1982.
With or without you: does partner satisfaction and partner-directed violence influence the presence of a partner on women’s Facebook cover profile photographs?
Authors: Prokop Pavol , Morvayová Natália , Fedor Peter
Published: April 2016

Social network sites (SNSs) provide new opportunities for online self-presentation of millions of users. The cover profile photograph (CPP) along with written information regarding relationship status is a central component of online self-presentation, although their associations with actual romantic relationships are not clear. We investigated relationships between the presence of a current romantic partner on the CPP and the displayed relationship status and partner satisfaction, partner-directed violence and women’s intrasexual competition with peers. A total of 28 % of the 158 women with a Facebook profile and being involved in a romantic relationship had their romantic partners on their CPP. As predicted, women with their partners on the CPP were more satisfied with their romantic relationship than others. Furthermore, women who did not have their partner on the CPP tended to conceal or lie in their displayed mating status suggesting that this may be a strategy how to attract another potential mate. The partner-directed violence and intrasexual competition hypotheses were not supported. Overall, the CPP and an honestly displayed relationship status is an expression of relationship satisfaction amongst women. 
Action-Emotion Style, Learning Approach and Coping Strategies, in Undergraduate University Students
Authors: De la Fuente Jesús , Martínez-Vicente José Manuel , Salmerón José Luis , Vera Manuel M. , Cardelle-Elawar María
Published: April 2016

Action-Emotion Style (AES) is an affective-motivational construct that describes the achievement motivation that is characteristic of students in their interaction with stressful situations. Using elements from the Type-A Behavior Pattern (TABP), characteristics of competitiveness and overwork occur in different combinations with emotions of impatience and hostility, leading to a classification containing five categories of action-emotion style (Type B, Impatient-hostile type, Medium type, Competitive-Overworking type and Type A). The objective of the present research is to establish how characteristics of action-emotion style relate to learning approach (deep and surface approaches) and to coping strategies (emotion-focused and problem-focused). The sample was composed of 225 students from the Psychology degree program. Pearson correlation analyses, ANOVAs and MANOVAs were used. Results showed that competitiveness-overwork characteristics have a significant positive association with the deep approach and with problem-focused strategies, while impatience-hostility is thus related to surface approach and emotion-focused strategies.  The level of action-emotion style had a significant main effect. The results verified our hypotheses with reference to the relationships between action-emotion style, learning approaches and coping strategies. 
Un modelo explicativo de la adaptación subacuática
Authors: Colodro Joaquín , Garcés-de-los-Fayos Enrique J. , López-García Juan J. , Colodro-Conde Lucía
Published: April 2016

The underwater environment is an extreme environment that requires a process of human adaptation with specific psychophysiological demands to ensure survival and productive activity. From the standpoint of existing models of intelligence, personality and performance, in this explanatory study we have analyzed the contribution of individual differences in explaining the adaptation of military personnel in a stressful environment. Structural equation analysis was employed to verify a model representing the direct effects of psychological variables on individual adaptation to an adverse environment, and we have been able to confirm, during basic military diving courses, the structural relationships among these variables and their ability to predict a third of the variance of a criterion that has been studied very little to date. In this way, we have confirmed in a sample of professionals (N = 575) the direct relationship of emotional adjustment, conscientiousness and general mental ability with underwater adaptation, as well as the inverse relationship of emotional reactivity. These constructs are the psychological basis for working under water, contributing to an improved adaptation to this environment and promoting risk prevention and safety in diving activities.
Ad hoc procedure for optimising agreement between observational records
Authors: Arana Javier , Lapresa Daniel , Anguera María Teresa , Garzón Belén
Published: April 2016

Observational studies in the field of sport are complicated by the added difficulty of having to analyse multiple, complex events or behaviours that may last just a fraction of a second. In this study, we analyse three aspects related to the reliability of data collected in such a study. The first aim was to analyse and compare the reliability of data sets assessed quantitatively (calculation of kappa statistic) and qualitatively (consensus agreement method). The second aim was to describe how, by ensuring the alignment of events, we calculated the kappa statistic for the order parameter using SDIS-GSEQ software (version 5.1) for data sets containing different numbers of sequences. The third objective was to describe a new consultative procedure designed to remove the confusion generated by discordant data sets and improve the reliability of the data. The procedure is called “consultative” because it involves the participation of a new observer who is responsible for consulting the existing observations and deciding on the definitive result.
Acteurs et économie des métadonnées du livre en France : analyse et avenir
Authors: Odeh Souad , Chartron Ghislaine
Published: April 2016

Dans le cadre de la transformation numérique de la filière du livre, cet article s’intéresse aux enjeux renouvelés des métadonnées associées au livre. Dans le contexte français, nous analysons l’offre de métadonnées portée par différents acteurs marchands et non marchands, et nous comparons la valeur de chacune d’entre elles. Le développement du livre numérique installe un nouveau contexte et sont pointés, même limités, des partenariats émergents de production des métadonnées entre bibliothèques, éditeurs et intermédiaires. La question de la pérennité de l’offre intermédiaire marchande est examinée ainsi que l’avenir de l’économie des métadonnées du livre de plus en plus diversifiées pour répondre à de nouveaux services.
Práticas de empoderamento feminino na América Latina
Authors: Paloma Abelin Saldanha Marinho , Hebe Signorini Gonçalves
Published: April 2016

Through a brief presentation of the debates regarding the concept of women’s empowerment and the insertion of the term in the perspective of gender studies, this article presents a bibliographical review of the women’s empowerment practices in Latin America between 2002 and 2012. The categories of analysis encountered in these practices were the following: empowerment based on women’s income, practices originating in women’s daily activities and strategies based on women’s groups, with valorization according to specificities. It was possible to observe the convergence between the results and the classic debates regarding the term, the need to insert the gender debate into women’s empowerment practices, and, as the main result, there has been an expressive number of practices based on workshops and other group strategies, aimed at the understanding of empowerment as a process permeated and nurtured by collective construction, reinforcing historical perspectives of feminism.
Homelessness and Risk of End-Stage Kidney Disease and Death in Veterans With Chronic Kidney Disease
Authors: Koyama Alain K. , Nee Robert , Yu Wei , Choudhury Devasmita , Heng Fei , Cheung Alfred K. , Cho Monique E. , Norris Keith C. , Yan Guofen
Published: September 2024

Importance

Adults experiencing homelessness in the US face numerous challenges, including the management of chronic kidney disease (CKD). The extent of a potentially greater risk of adverse health outcomes in the population with CKD experiencing homelessness has not been adequately explored.

Objective

To evaluate the association between a history of homelessness and the risk of end-stage kidney disease (ESKD) and death among veterans with incident CKD.

Design, Setting, and Participants

This retrospective cohort study was conducted between January 1, 2005, and December 31, 2017. Participants included veterans aged 18 years and older with incident stage 3 to 5 CKD utilizing the Veterans Health Administration health care network in the US. Patients were followed-up through December 31, 2018, for the occurrence of ESKD and death. Analyses were performed from September 2022 to October 2023.

Exposure

History of homelessness, based on utilization of homeless services in the Veterans Health Administration or International Classification of Diseases, Ninth Revision or International Statistical Classification of Diseases and Related Health Problems, Tenth Revision codes. Homelessness was measured during the 2-year baseline period prior to the index date of incident CKD.

Main Outcomes and Measures

The primary outcomes were ESKD, based on initiation of kidney replacement therapy, and all-cause death. Adjusted hazard ratios (HRs) were calculated to compare veterans with a history of homelessness with those without a history of homelessness.

Results

Among 836 361 veterans, the largest proportion were aged 65 to 74 years (274 371 veterans [32.8%]) or 75 to 84 years (270 890 veterans [32.4%]), and 809 584 (96.8%) were male. A total of 26 037 veterans (3.1%) developed ESKD, and 359 991 (43.0%) died. Compared with veterans who had not experienced homelessness, those with a history of homelessness showed a significantly greater risk of ESKD (adjusted HR, 1.15; 95% CI, 1.10-1.20). A greater risk of all-cause death was also observed (HR, 1.48; 95% CI, 1.46-1.50). After further adjustment for body mass index, comorbidities, and medication use, results were attenuated for all-cause death (HR, 1.09; 95% CI, 1.07-1.11) and were no longer significant for ESKD (HR, 1.04; 95% CI, 0.99-1.09).

Conclusions and Relevance

In this cohort study of veterans with incident stage 3 to 5 CKD, a history of homelessness was significantly associated with a greater risk of ESKD and death, underscoring the role of housing as a social determinant of health.