bluuebunny/crossref_metadata_2025_split huggingface dataset:
The effect of osseodensification and different thread designs on the dental implant primary stability
Authors: Almutairi Abdullah Saleh , Walid Maher Abdullatif , Alkhodary Mohamed Ahmed 
Published: December 2018

Background: It is difficult to achieve good primary stability of dental implants in soft bone, such as that in the posterior maxillae. Osseodensification (OD) burs, working in a non-subtractive fashion, condense the implant osteotomy bone in lateral direction and increase in the bone implant contact. Also, dental implants with deeper threads, and decreased thread pitch can increase initial bone implant anchorage. Methods: This study utilized 48 custom-made machined surface dental implants that were 13 mm long, with a major diameter of 4.5 mm and a minor diameter of 3.5 mm, a thread pitch of 1 mm, a thread depth of 0.5 mm, and a 4 mm long cutting flute at the apex. The implants were divided into 4 groups, each group was made of 12 implants with a different thread design; V-shaped, trapezoid, buttress, and reverse buttress. The implants were inserted in 4-mm thick cancellous bone slices obtained from the head of Cow femur bone. The ostoetomies were prepared by conventional drilling and by OD drilling. Each inserted implant was then tested for primary stability using the Periotest. The Periotest values (PTVs) for the implant stability were tabulated and analyzed using a chi square test at significance level p< 0.05. Results: The results of this this study revealed no statistically significant difference between the Periotest readings for the implants in each category placed in either the OD or the regular osteotomies. However, it has been found that the implants placed in regular drilling ostoetomies had a significantly better primary stability than the implants placed in OD osteotomies. Conclusions: It was concluded that OD is not necessary in situations where there is bone of good quality and quantity.
Erfahrungsbasiertes Kontextwissen in wissensintensiven Tätigkeiten am Beispiel teambasiert arbeitender junger IngenieurInnen
Authors: Sauer Stefan , Böhle Fritz , Bolte Annegret 
Published: December 2018

Zusammenfassung
Junge IngenieurInnen benötigen nicht nur Erfahrungswissen über die Tätigkeiten ihres Teams oder ihrer Abteilung. Sie brauchen auch erfahrungsbasiertes Wissen über Tätigkeiten und Vorgehenslogiken anderer Unternehmensbereiche. Das gilt vor allem im Betriebsmittelbau, der eine Brücke zwischen Produktentwicklung und Fertigung bildet. Um dieses Wissen erwerben zu können, sind Kooperationen über das Team bzw.die Abteilung hinaus erforderlich, die jedoch in der Praxis meist nicht gefördert, oft eher behindert werden. Der Beitrag entwickelt anhand einer empirischen Studie mit jungen IngenieurInnen im Betriebsmittelbau eines Automobil-Großkonzerns das Konzept des erfahrungsbasierten Kontextwissens für dieses Wissens- und Lernziel. Er unterscheidet gegenstandsbezogenes und kooperationsbezogenes Kontextwissen in jeweils vier Dimensionen: Produkt, Prozess, Kultur und Soziales.
Stable Matching with Double Infinity of Workers and Firms
Authors: Fuentes Matías , Tohmé Fernando 
Published: December 2018

Abstract
In this paper we analyze the existence of stable matchings in a two-sided large market in which workers are assigned to firms. The market has a continuum of workers while the set of firms is countably infinite. We show that, under certain reasonable assumptions on the preference correspondences, stable matchings not only exist but are also Pareto optimal.
Metalloproteinases in non-alcoholic fatty liver disease and their behavior in liver fibrosis
Authors: Barchuk Magalí , Schreier Laura , Berg Gabriela , Miksztowicz Verónica 
Published: December 2018

Abstract
Non-alcoholic fatty liver disease (NAFLD) is a clinical entity of high prevalence in the world characterized by fatty infiltration of liver tissue in the absence of alcohol consumption. The natural history of the disease develops in successive phases reflected in different histological stages, with 10–20% of patients developing liver cirrhosis and fibrosis. Fibrosis is a basic connective tissue lesion defined by the increase of the fibrillary extracellular matrix (ECM) components in a tissue or organ. Matrix metalloproteinases (MMPs) constitute a family of endopeptidases, which are involved in ECM and basement membranes components degradation. Fibrogenic process is characterized by altered ECM composition, associated with modifications in MMPs behavior. The active cross-talk between adipose tissue and liver can be altered in pathologies associated to insulin resistance (IR), such as NAFLD. The role of adipokines on MMPs behavior in the liver could be partly responsible of liver damage during IR. The aim of this revision is to describe the behavior of MMPs in NAFLD and its role in the associated fibrosis.
Direct observations of vertebrate killing and consumption by the endangered Pyrenean desman (Galemys pyrenaicus)
Authors: Quaglietta Lorenzo , Beja Pedro 
Published: December 2018

Abstract
The Pyrenean desman (Galemys pyrenaicus) is a globally endangered semiaquatic mammal species restricted to Southwest Europe. It is thought to mostly predate on aquatic prey, particularly macroinvertebrates; yet anecdotal information and recent genetic-based findings suggest higher flexibility in its trophic niche. Here, we report on direct observations of wild-caught Pyrenean desmans attacking, killing and consuming live fish (trout – Salmo trutta fario) and amphibians (Iberian frog – Rana iberica) in semi-captivity conditions providing unquestionable evidence (photos and videos) of vertebrate attack, killing, handling and consumption by the species. This illustrates the species’ ability to kill and eat vertebrates, corroborating recent evidence on its trophic flexibility.
Confidence Region for Calibration Function Coefficients
Authors: Ráboňová Petra , Wimmer Gejza 
Published: December 2018

Abstract
The paper deals with the comparative calibration model, i.e. with a situation when both variables are subject to errors. The calibration function is supposed to be a polynomial. From the statistical point of view, the model after linearization could be represented by the linear errors-in-variables (EIV) model. There are two different ways of using the Kenward and Roger’s type approximation to obtain the confidence region for calibration function coefficients. These two confidence regions are compared on a small simulation study. Calibration process and process of measuring with calibrated device are described under the assumption that the measuring errors are normally distributed.
Crystal structure of (Z)-2-((adamantan-1-ylimino)methyl)-5-methoxyphenol, C18H23NO2
Authors: Zhong Qiong 
Published: December 2018

Abstract
C18H23NO2, monoclinic, C2/c (no. 15), a = 21.057(3) Å, b = 6.5535(7) Å, c = 24.069(4) Å, β = 113.535(3)°, V = 2780.9(5) Å3, Z = 8, R
gt(F) = 0.0607 , wR
ref(F
2) = 0.1204, T = 293(2) K.
Reconfigurable and Permanent Wetting Patterns on Polymer Surfaces Obtained Using Plasma Oxidation and Laser Ablation
Authors: Kiraz A. , Rashid Z. , Morova B. , Yaman Ö. , Soydan S. , Birer Ö. , Yilgor I. 
Published: December 2018

Abstract
Smart surfaces with preferably reconfigurable wetting properties can lead to key applications in labon- a-chip analytical and preparative systems. In this paper, we present our recent results obtained using polymer surfaces whose wetting properties are modified in a permanent manner using laser ablation and in a reconfigurable manner using plasma oxidation. Polydimethylsiloxane (PDMS) diluted in solvent is used as the polymeric material coated over microscope glass slides in our studies. In the first part, the tracks of ~ 70 μm width are defined over the surface by surface oxidation using cold plasma exposure through a microfluidic channel. In the second part, femtosecond laser micromachining is used for selective removal of polymer coating and uncovering the hydrophilic glass substrate. We experimentally demonstrate guiding of water in the form of filaments and droplets over the obtained hydrophilic tracks of ~ 110 μm. We also discuss preliminary experiments to coat light sensitive azobenzene over a glass substrate with the help of a silane in order to achieve reversible isomerization upon periodic exposure to UV/vis radiation. Furthermore, we elaborate advantages, challenges and the significant role of such patterned surfaces in future applications.
On the zagreb polynomials of benzenoid systems
Authors: Chel Kwun Young , Zahid Manzoor Ahmad , Nazeer Waqas , Ali Ashaq , Ahmad Maqbool , Kang Shin Min 
Published: December 2018

AbstractTopological indices play significant role in determining properties of chemical compound. Algebraic polynomials help to compute topological indices of studied chemical compounds. Benzenoid systems are used mainly as an intermediate to make other chemicals. In this report we aim to compute Zagreb polynomials of zigzag, rhombic, triangular, hourglass and jagged-rectangle benzenoid systems.
Effects of Different Wearable Resistance Placements on Sprint-Running Performance: A Review and Practical Applications
Authors: Macadam Paul , Cronin John B. , Uthoff Aaron M. , Feser Erin H. 
Published: December 2018

ABSTRACT
WEARABLE RESISTANCE (WR) PROVIDES THE PRACTITIONER WITH THE MEANS TO OVERLOAD SPRINT RUNNING IN A SPRINT-SPECIFIC MANNER. THIS ARTICLE INVESTIGATES THE EFFECTS OF WR ON SPRINT-RUNNING PERFORMANCE BY DISCUSSING THE MECHANISMS ASSOCIATED WITH WR, AS WELL AS THOSE FACTORS THAT MUST BE TAKEN INTO CONSIDERATION BY THE PRACTITIONER WHEN IMPLEMENTING A PROGRAM THAT USES WR. IN PARTICULAR, THE EFFECTS OF DIFFERENT WR BODY PLACEMENTS (TRUNK, LEGS, AND ARMS) WILL BE DISCUSSED. PRACTICAL APPLICATIONS AND CONCLUSIONS FROM THE ANALYSIS WILL BE PROVIDED.
Birds of a Feather Want to Talk Together: The Impact of Depressive Symptoms on Initial Stages of Friendship Formation in Older Adolescence
Authors: Schwartz-Mette Rebecca A. , Lawrence Hannah R. , Shankman Jessica , Fearey Eliot , Dueweke Aubrey 
Published: December 2018

Introduction: Peer relationships play a vital role in adolescents’ lives and are considered to be especially critical for youth who experience elevated depressive symptoms. Unfortunately, depressed youth tend to have difficulties with existing friendships (e.g., fewer and lower quality friendships), which may exacerbate their symptoms. Little is known, however, about how depressed youth approach the initial stages of friendship formation, which may have implications for the types of social support they can access.Method: Using a conversation task designed to build intimacy, older adolescents (N = 228, M age = 19.54 years) with and without elevated depressive symptoms interacted with a previously unknown, same-gender partner.Results: Results suggested that adolescents with elevated symptoms experienced interactions differently (e.g., speculated more about their conversation partner and thought their partner was speculating more about them, experienced more negative affect) than nondepressed peers. The depression status of the potential friend also mattered, as participants paired with partners of similar emotional adjustment status wanted to talk more and felt closer to one another than did mismatched partners.Discussion: Findings underscore that depressive symptoms impact even the earliest stages of friendship formation. From the perspective of interpersonal theories of depression, implications for bolstering depressed adolescents’ relationships are discussed.
ERİK VE ELMA SUYUNUN TAVUK ETİ MARİNASYONUNDA KULLANILMASI
Authors: ERGE Aydın , CİN Kevser , ŞEKER Ezgi 
Published: December 2018

Bu araştırmada kanatlı sektöründe bazı alternatif doğal
marinasyon uygulamaları ile ürün çeşitliliğini artırmak ve katma değeri yüksek
ürünlerin üretimi amaçlanmıştır. Bu amaçla doğal marinat olarak 10°Bx ve 14°Bx
konsantrasyonlarında erik ve elma suyu konsantreleri kullanılmıştır. Diğer bir
marinat olarak ise konvansiyonel bir katkı maddesi olan %1'lik sodyum
tripolifosfat (STPP) kullanılmıştır. Marine edilen tavuk etleri duyusal,
fiziksel, teknolojik ve tekstürel kalite özellikleri bakımından
değerlendirilmiştir. En yüksek marinat absorbsiyonunun %7.52 ile STPP
uygulamasına; en düşük çözünme kaybının %2.77 ile 14°Bx elma suyu uygulamasına;
en düşük pişme kaybının %25.28 ile 10°Bx elma suyu uygulamasına; en yüksek son
ürün veriminin %76.65 ile STPP uygulamasına ve en yüksek duyusal analiz genel
beğeni puanının ise 14°Bx elma suyu uygulamasına ait olduğu görülmüştür.
Sonuçta araştırma bulguları, elma suyunun piliç göğüs eti marinasyonunda ürün
çeşitliliğini artırabileceğini ve doğal bir katkı maddesi olarak kullanılabileceğini göstermiştir.
Fine-Grained Analysis of Spontaneous Mutation Spectrum and Frequency in Arabidopsis thaliana
Authors: Weng Mao-Lun , Becker Claude , Hildebrandt Julia , Neumann Manuela , Rutter Matthew T , Shaw Ruth G , Weigel Detlef , Fenster Charles B 
Published: December 2018

Abstract
Mutations are the ultimate source of all genetic variation. However, few direct estimates of the contribution of mutation to molecular genetic variation are available. To address this issue, we first analyzed the rate and spectrum of mutations in the Arabidopsis thaliana reference accession after 25 generations of single-seed descent. We then compared the mutation profile in these mutation accumulation (MA) lines against genetic variation observed in the 1001 Genomes Project. The estimated haploid single nucleotide mutation (SNM) rate for A. thaliana is 6.95 × 10−9 (SE ± 2.68 × 10−10) per site per generation, with SNMs having higher frequency in transposable elements (TEs) and centromeric regions. The estimated indel mutation rate is 1.30 × 10−9 (±1.07 × 10−10) per site per generation, with deletions being more frequent and larger than insertions. Among the 1694 unique SNMs identified in the MA lines, the positions of 389 SNMs (23%) coincide with biallelic SNPs from the 1001 Genomes population, and in 289 (17%) cases the changes are identical. Of the 329 unique indels identified in the MA lines, 96 (29%) overlap with indels from the 1001 Genomes dataset, and 16 indels (5% of the total) are identical. These overlap frequencies are significantly higher than expected, suggesting that de novo mutations are not uniformly distributed and arise at polymorphic sites more frequently than assumed. These results suggest that high mutation rate potentially contributes to high polymorphism and low mutation rate to reduced polymorphism in natural populations providing insights of mutational inputs in generating natural genetic diversity.
Rechtliche Nachwirkungen einer ausgelaufenen kartellrechtlichen Gruppenfreistellungsverordnung (GVO)
Authors: Dreher Meinrad , Burkhart Leon 
Published: December 2018

Zusammenfassung
Für Tatbestände von Gruppenfreistellungsverordnungen, die außer Kraft getreten sind, geht die Literatur verbreitet davon aus, dass sie in Form von Indizien, Vermutungen oder Leitbildern weiter rechtliche Wirkungen haben. Bis heute fehlt aber eine Untersuchung, ob überhaupt und auf welcher methodischen Grundlage Tatbestände einer ausgelaufenen GVO rechtliche Nachwirkungen haben können. Der vorliegende Beitrag will diese Lücke schließen. Außer einer methodischen und materiellen Grundlage erfolgt eine Exemplifikation der allgemeinen Ausführungen anhand der im Jahr 2017 außerkraftgetretenen GVO Versicherungswirtschaft.
Verstoßen exklusive Sportschiedsklauseln mit Schiedsort Schweiz gegen europäisches Kartellrecht?
Authors: Orth Mark-E. 
Published: December 2018

Zusammenfassung
Der Beitrag untersucht, ob exklusive Schiedsklauseln mit Schiedsort in der Schweiz – wie sie im Sport üblich sind – gegen europäisches Kartellrecht verstoßen. Der Rechtsprechung des Schweizer Bundesgerichts, wonach Kartellrechtsverstöße keinen ordre public-Verstoß darstellen, kommt dabei besondere Bedeutung zu. Die Praxis der europäischen Kommission wie auch die Rechtsprechung von EuGH und BGH werden berücksichtigt.
Beyond cognitive measures: Empirical evidence supporting holistic medical school admissions practices and professional identity formation
Authors: Yingling Sandra , Park Yoon Soo , Curry Raymond H. , Monson Verna , Girotti Jorge 
Published: December 2018

This article was migrated. The article was marked as recommended. Background: Medical schools seek admissions methods that identify applicants who hold promise to become physicians who will navigate and shape the future medical landscape. The focus on traditional cognitive measures for admission has prompted calls for holistic admissions review during the past five years. Yet, empirical evidence linking selection measures to holistic admissions practices has not been fully established, including their relationship with professional identity formation over time. A non-cognitive admissions situational judgment screening test (CASPer) measuring personal and professional characteristics was added to the University of Illinois College of Medicine admissions process two years ago, as we implemented a new curriculum that emphasizes professional identity development. Purpose: This study examined associations among admissions measures (Medical College Admission Test [MCAT], grade point average [GPA], interview, and CASPer), and their predictive relationships with curricular measures of professional identity formation (Professional Identity Essay [PIE]) and moral reasoning (Defining Issues Test [DIT2]). Methods: Data were taken from two entering cohorts (n = 596; entering class of 2017 and 2018 across 3 regional sites). Correlations and regression analyses were used to examine associations between admissions and professional identity measures. Results: CASPer and in-person admissions interview ratings had significant positive correlations, suggesting that CASPer can contribute to effective screening processes. In addition, CASPer demonstrated statistically significant positive relationships with professional identity (CASPer and PIE, r=.10, p<.05) and a measure of moral reasoning (CASPer and DIT2 type indicator, r=.09, p<.05). Association between CASPer and PIE remained consistent, even after controlling for MCAT, interview, and GPA. Conclusion: Our institutional focus on professional identity formation has provided new ways to conceptualize students' readiness for medical school – demonstrated academic rigor as well as signs of professionalism, ethics, and motivation. Non-academic factors measured in situational judgment tests may promote better alignment of admissions practices and desired educational outcomes.
Treatment Outcomes and Sensitivity to Hormone Therapy of Aggressive Angiomyxoma: A Multicenter, International, Retrospective Study
Authors: Fucà Giovanni , Hindi Nadia , Ray-Coquard Isabelle , Colia Vittoria , Dei Tos Angelo Paolo , Martin-Broto Javier , Brahmi Mehdi , Collini Paola , Lorusso Domenica , Raspagliesi Francesco , Pantaleo Maria Abbondanza , Vincenzi Bruno , Fumagalli Elena , Gronchi Alessandro , Casali Paolo Giovanni , Sanfilippo Roberta 
Published: December 2018

AbstractBackgroundAggressive angiomyxoma (AA) is a rare, locally aggressive tumor usually arising from pelvis or perineum, with a high local-recurrence rate after complete surgery. Anecdotal responses to hormone therapy have been reported. In the present study we aimed at studying surgical treatment outcomes and sensitivity to hormone therapy of AA.Materials and MethodsWe conducted a multicenter, international retrospective effort including patients with AA treated at three European referral centers (Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy and the Italian Rare Cancer Network; Centre Léon Bérard, Lyon, France; and Hospital Universitario Virgen del Rocio, Seville, Spain).ResultsA total of 36 patients were included. Median follow-up was 51.3 months. Thirty-three patients (92%) underwent complete (R0 + R1) surgery, with a local relapse rate of 50% and a median relapse-free survival of 39 months (95% confidence interval [CI], 27–68.1). Thirteen patients received a first-line systemic treatment with hormone therapy for locally advanced disease, with an overall response rate of 62% and a median progression-free survival of 24.6 months (95% CI, 11.0–39.7). In two patients, adding an aromatase inhibitor (AI) on progression to first-line GnRH agonist (GnRHa) resulted in a new tumor response.ConclusionOur findings confirm that in AA, surgical local control may be challenging, with a significant rate of local relapse despite complete surgery. Hormone therapy is an active treatment option, with a potential of disease control and of being combined with surgery. The addition of an AI to first-line GnRHa could be an effective second-line systemic therapy in premenopausal female patients with AA.
Ingreso y egreso de alumnos de Posgrado en Universidades Estatales
Authors: Recalde Aritz 
Published: December 2018

El 21 de agosto de 2014 se realizó en la Universidad Nacional de Lanús, una jornada acerca de las “Problemáticas actuales para la culminación de Tesis y de Trabajos Finales de Posgrado”. El objetivo del encuentro, fue el de analizar algunas de las causas por la cuales los alumnos no culminan las Carreras de Posgrado.La jornada contó con la participación del vicerrector de la UNLa Nerio Neirotti; de Esther Díaz, de Cristina Ambrosini y de Andrés Mombrú del Departamento de Humanidades y Artes; de Jorge Arakaki en representación del Departamento de Salud Comunitaria; del docente investigador de la Universidade do Estado do Río de Janeiro, Kenneth Camargo y de quien escribe el presente artículo.
Ciencia económica y valores. Riquezas y Fortunas
Authors: Guichòn Diego 
Published: December 2018

En el campo de la economía, la teoría económica clásica y neoclásica propusieron distinguir en su interior una rama científica o positiva y otra denominada arte, práctica, o enfoque normativo, donde, sólo en este último tendrían cabida valores no epistémicos. Este trabajo investiga dos mecanismos por los cuales, valores no epistémicos influyen sobre el contenido de la disciplina considerada como ciencia o economía positiva. El primero es que cambio en estos valores modifica el contenido de la ciencia positiva, haciendo que determinadas prácticas o medios sean estudiados o no, o bien que se estudien determinados aspectos de los mismos y otros no se estudien.El método científico, aun cuando pudiera consensuarse cual es específicamente para la ciencia económica, no podría influir sobre este tipo de cambio científico. En segundo lugar, se encuentra la introducción de juicios de valor en la parcialidad de las teorías o de la evidencia empírica considerada.Para ilustrar ambos mecanismos se estudia un caso histórico, sobre cómo ha sido tratado un objetivo, el hacerse rico, y los medios para lograrlo.
Responsabilidad social en la gestión de la energía: el papel del Estado y de los funcionarios públicos involucrados. A propósito del aumento de las tarifas de gas natural. Su repercusión
Authors: Roveda María de los Ángeles , Toso Matías 
Published: December 2018

Al inicio del presente año, el Ministerio de Energía y Minería de la Nación, mediante Resoluciones N° 28/2016 y N° 31/2016, dispuso la determinación de nuevos precios en Punto de Ingreso al Sistema de Transporte (en adelante PIST), las tarifas de transporte y distribución para el gas natural, que comenzarían a regir a partir del 1° de abril del año 2016, aplicándose a las diferentes categorías de usuarios – con bonificaciones para aquellosque registraran un ahorro igual o superior al 15% con respecto al mismo período del año anterior – y los criterios de elegibilidad para ser beneficiarios de una tarifa social. En este trabajo nos ocuparemos de analizar las repercusiones de esa resolución.