bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimización de un ruteo vehicular usando algoritmo genético simple chu-beasley
Authors: Solarte Martínez Guillermo Roberto , Castillo Sanz Andrés Gaspar , Rodríguez Gahona Guillermo 
Published: April 2015

genéticos en la optimización de recursos y procesos; a continuación se establece un estudio de caso fundamentado en el ruteo vehicular y la optimización del mismo, aplicando el algoritmo genético de Chu-Beasley. Este estudio, que inició en noviembre de 2013 y terminó en marzo de 2014, se aplicó en la ciudad de Bogotá, D.C., por ser la capital de Colombia. Esta metrópoli cuenta con innumerables zonas industriales, centros de acopio, almacenes y demás actividades comerciales. De la misma manera, el crecimiento de la capital en los últimos años ha sido significativo, lo que ha generado una extensión territorial exponencial, causando problemas de movilidad y transporte. Por ello es imperioso para algunas empresas que deben distribuir sus productos optimizar los recorridos y garantizar efectividad y eficiencia en las entregas.
La ética en la formación del ingeniero de minas: representaciones sociales de actores educativos
Authors: Pérez Gómez Raimundo Alonso , Gamboa Suárez Audin Aloiso , Hernández Suárez César Augusto 
Published: April 2015

El presente artículo muestra los resultados de una investigación cualitativa que buscó comprender las representaciones sociales de docentes y estudiantes sobre la ética en una institución de educación superior en Cúcuta, Colombia. Se utilizó el método hermenéutico, lo cual posibilitó comprender un tipo de conocimiento que se construye en el diálogo, la interacción, la intersubjetividad y la cotidianidad. La muestra fue intencional y la conformaron 25 estudiantes y 2 profesores. Los resultados del estudio evidencian que para los actores educativos la ética está relacionada con los valores de los sujetos, los cuales son aprendidos del entorno. Relacionan la ética con la sociedad y la definen como una ciencia que les da a las personas ciertos parámetros que deben seguir para cumplir con las buenas acciones dentro de la sociedad.
Division algebras and transitivity of group actions on buildings
Authors: Zaremsky Matthew C. B. 
Published: April 2015

Abstract
Let D be a division algebra with center F and degree d > 2. Let K|F be any splitting field.We analyze the action of D× and SL1(D) on the spherical and affine buildings that may be associated to GLd(K) and SLd(K), and in particular show it is never strongly transitive. In the affine case we find examples where the action is nonetheless Weyl transitive. This extends results of Abramenko and Brown concerning the d = 2 case, where strong transitivity is in fact possible. Our approach produces some explicit constructions, and we find that for d > 2 the failure of the action to be strongly transitive is quite dramatic.
Projections of del Pezzo surfaces and Calabi–Yau threefolds
Authors: Kapustka Grzegorz 
Published: April 2015

Abstract
We study the syzygetic structure of projections of del Pezzo surfaces in order to construct singular Calabi-Yau threefolds. By smoothing those threefolds,we obtain new examples of Calabi-Yau threefolds with Picard group of rank 1. We also give an example of type II primitive contraction whose exceptional divisor is the blow-up of the projective plane at a point.
Warum die Leistungen von Bibliotheken vergleichen?
Authors: Kreische Joachim 
Published: April 2015

Zusammenfassung:
Die bibliothekspolitisch immer noch aktuelle Frage, ob und wie ein öffentlicher Leistungsvergleich von Bibliotheken sinnvoll und möglich ist, soll aus dem Schatten der Diskussion um die mangelnde Akzeptanz des Bibliotheksindex herausgeführt werden. Mit der Unterscheidung zwischen funktionalem und wettbewerbsorientiertem Benchmarking werden für beide unterschiedliche Werkzeuge empfohlen, die im BIX methodisch unzulässig miteinander verknüpft werden. Kritisch beleuchtet wird auch die Frage, wie mit Kennzahlen überhaupt eine Gesamtbewertung von Bibliotheksleistungen möglich ist.
Einer für alle? – Gemeinsames Befragungsdesign für vier FH-Bibliotheken in NRW im Leistungsvergleich
Authors: Fühles-Ubach Simone 
Published: April 2015

Zusammenfassung:
Im Fokus des Projekts stand die Erstellung eines gemeinsamen Kundenfragebogens und einer daran anschließenden Leistungsmessung, die neben den individuellen Ergebnissen für die teilnehmenden Bibliotheken zu einer Meta-Auswertung geführt hat, die die eigene Leistung relativiert an der Gesamtbewertung aufzeigen konnte. Dargestellt und erläutert werden die wichtigsten Ergebnisse der Gesamtauswertung, die überwiegend positiv ausgefallen sind. In diesem Kontext sind die Ergebnisse der Frage zur Wirkungsmessung und zur zukünftigen Nutzung besonders interessant.
Weighing algorithms of classification and identification of situations
Authors: Chudnov Alexander M. 
Published: April 2015

AbstractThe paper gives lower bounds for the minimum number m of weighings that are necessary for identification of up to t non-standard objects out of the total number of n objects being tested. For the problem with fixed deviation of weights of non-standard objects we construct a perfect algorithms with parameters n = 11, m = 5, t = 2 corresponding to the parameters of the ternary Virtakallio-Golay code. The nonexistence of a perfect weighing code with such parameters is proved.
The Influence of Word Retrieval and Planning on Phonetic Variation: Implications for Exemplar Models
Authors: Fink Angela , Goldrick Matthew 
Published: April 2015

AbstractOver the past several decades, an increasing number of empirical studies have documented the interaction of information across the traditional linguistic modules of phonetics, phonology, and lexicon. For example, the frequency with which a word occurs influences its phonetic properties of its sounds; high frequency words tend to be reduced relative to low frequency words. Lexicalist Exemplar Models have been successful in accounting for this body of results through a single mechanism,exemplars– memory representations that integrate lexical, phonological, and phonetic information into a single structure. We review recent studies that suggest there are critical limitations to assuming that phonetic variation solely reflects the storage of word labels and sound structure in exemplars. Specifically, these studies show that factors related to the on-line retrieval and planning of lexical items also influence phonetic variation. The implications of these findings for exemplar models are discussed; the relationship of exemplar storage to the broader cognitive system is examined, as well as alternative theoretical frameworks incorporating gradience at all levels of linguistic representation.
Crystal structure of N-(tert-butyl)-2-(N-(2-fluorophenyl)-2-(4-nitrophenyl) acetamido)-3-oxo-3-phenylpropanamide, C27H26FN3O5
Authors: Zhang Meng-Di , Cao Yan-Tong , Tong Lin-Lin , Guo Chang-Bin 
Published: April 2015

Abstract C27H26FN3O5, triclinic, P1̄ (no. 2), a = 10.8141(6) Å, b = 11.0261(6) Å, c = 11.9967(7) Å, α = 83.398(4)°, β = 65.586(3)°, γ = 81.088(4)°, V = 1284.7 Å3, Z = 2, Rgt(F) = 0.0490, wRref(F2) = 0.1519, T = 296 K.
Crystal structure of [2-(4-bromophenyl)pyridine-κ2C,N)bromo[1,3-bis- (4-methylphenyl)imidazol-2-ylidene-κC)] palladium(II), C28H23Br2N3Pd
Authors: Xu Chen , Song Ying-Li , Wang Zhi-Qiang 
Published: April 2015

Abstract C28H23Br2N3Pd, monoclinic, P21/c (no. 14), a = 10.627(1) Å, b = 10.337(1) Å, c = 23.945(3) Å, β = 99.919(2)°, V = 2591.1 Å3, Z = 4, Rgt(F) = 0.0375, wRref(F2) = 0.1148, T = 296 K.
Crystal structure of bis((μ2-hydroxo)-aqua-(1,10-phenanthroline-κ2N,N’)- copper(II))bis((μ2-hydroxo)-(carbonato-κO)-(1,10-phenanthroline- κ2N,N’)-copper(II)) tetradecahydrate, C50H64Cu4N8O26
Authors: Clark Candyce , Sephton Bereneice , Sephton Abigail , Dugmore Travis , Hickson Matthew , Betz Richard 
Published: April 2015

Abstract C50H64Cu4N8O26, triclinic, P1̄ (no. 2), a = 11.0000(3) Å, b = 11.2890(3) Å, c = 12.4370(4) Å, α = 107.976(1)°, β = 90.676(1)°, γ = 95.937(1)°, V = 1459.6 Å3, Z = 1, Rgt(F) = 0.0262, wRref(F2) = 0.0727, T = 200 K.
Predicting Neonatal Intubation Competency in Trainees
Authors: DeMeo Stephen D. , Katakam Lakshmi , Goldberg Ronald N. , Tanaka David 
Published: April 2015

BACKGROUND AND OBJECTIVES:
Pediatric residency training programs are graduating residents who are not competent in neonatal intubation, a vital skill needed for any pediatrician involved in delivery room resuscitations. However, a precise definition of competency during training is lacking. The objective of this study was to more precisely define the trajectory toward competency in neonatal intubation for pediatric residents, as a framework for later evaluating complementary training tools.

METHODS:
This is a retrospective single-center observational study of resident-performed neonatal intubations at Duke University Medical Center between 2005 and 2013. Using a Bayesian statistical model, intubation competency was defined when the resident attained a 75% likelihood of intubating their next patient successfully.

RESULTS:
A total of 477 unique intubation attempts by 105 residents were analyzed. The path to proficiency was defined by a categorical or milestone learning event after which all learners move toward competency in a similar manner. In our cohort, 4 cumulative successes were needed to achieve competency. Only 24 of 105 (23%) achieved competency during the study period. Residents who failed their first 2 opportunities, compared with those successful on their first 2 opportunities, needed nearly double the intubation exposure to achieve competency.

CONCLUSIONS:
Bayesian statistics may be useful to more precisely describe neonatal intubation competency in residents. Achieving competency in neonatal intubation appears to be a categorical or milestone learning event whose timing varies between residents. The current educational environment does not provide adequate procedural exposure to achieve competency for most residents.
Social and Clinical Descriptors of Antipsychotic Prescription
Authors: Piccinni Carlo , Piazza Antonella , Poluzzi Elisabetta , Tarricone Ilaria , Koci Ariola , Berardi Domenico , Fioritti Angelo , de Ponti Fabrizio 
Published: April 2015

Objective To identify descriptors of Antipsychotic (AP) prescription, focusing on second generation antipsychotics (SGAs), polypharmacy, and long-acting injections (LAIs). Methods Outpatients of the Bologna-Community-Mental-Health-Centres with at least one AP prescription were selected. Patients' characteristics, service utilization, and AP prescriptions were collected from administrative databases. Prescriptions were grouped by class (SGA vs. First Generation Antipsychotics), drug combination (polypharmacy vs. monotherapy), and preparation (LAIs vs. regular administration). Multi-variate analyses were performed to identify prescription descriptors among socio-demographic and clinical variables. Results Among 6,074 patients and 41,121 AP prescriptions, SGAs were used in 70.7% of subjects, AP polypharmacy in 25.3%, and LAIs in 17.5%. SGAs were prescribed more often for young, Italian patients, with higher education, voluntary hospital-ization, and high number of visits. Descriptors of AP polypharmacy were: high number of visits and hospitalization, length of treatment, non-urban residency, male gender, unemployment. Characteristics associated to LAI prescription were: long duration of treatment, high number of visits, compulsory admissions, non-Italian nationality, male gender, age > 34, low education, unmarried status. Conclusions Besides illness severity, this study identified different socio-demographic descriptors of AP choices, raising concerns on the equity of treatments. Efforts should be directed to investigate appropriateness of AP treatments especially in social disadvantaged populations.
Seeing Double: Sertraline and Diplopia: A Case Report
Authors: Alao Adekola , Lewkowicz Claire 
Published: April 2015

Objective To describe the first case of sertraline-induced diplopia. Method Medline and PubMed data search using the words sertraline, Zoloft, diplopia, double vision. A case summary of a patient who developed diplopia from sertraline. Result This case describes a 34-year-old man who developed diplopia after treatment with sertraline. The diplopia resolved after discontinuation of sertraline and redeveloped upon rechallenge. Conclusion Although incidences of diplopia caused by citalopram, another SSRI, have been described, to the best of our knowledge, this is the first reported case of sertraline-induced diplopia. More studies are needed to describe the full mechanism of action of sertraline-induced diplopia.
Suspected Intraoperative Anaphylaxis to Gelatin Absorbable Hemostatic Sponge
Authors: Ji Joonyoung , Barrett Edward J. 
Published: April 2015

Abstract
Anaphylaxis under anesthesia is a life-threatening medical emergency that requires rapid identification and treatment. Allergies to agents with which the general population are likely to come into contact are usually identified, but patients are exposed to uncommon agents during anesthesia and surgery. Here, we describe a case of anaphylaxis under anesthesia implicating Gelfoam sponges.
L’Afrique subsaharienne à l’épreuve de la crise
Authors: Bedossa Bastien , Bellocq François-Xavier , Jacquet Pierre , Letilly Gäelle 
Published: April 2015

Sub-Saharan Africa towards the Crisis.
Sub-Saharan African countries are still less integrated into global financial markets than emerging economies. However, spillover effects from global crisis after the Lehman Brothers bankruptcy in 2008 also hit African economies. The international trade collapse and the downturn of foreign capital inflows led to a major growth slowdown in 2009 ; this slowdown differed according to African countries’ exposure to the globalization. The implementation of countercyclical budgetary policies certainly provided support for economic activities but resulted in higher fiscal deficit and public indebtedness. The decline of international trade weakened current accounts of many Sub-Saharan African countries ; however, no specific tension
Notre système financier nous sert-il bien ?
Authors: Friedman Benjamin M. 
Published: April 2015

Is our Financial System Serving Us Well ?
The financial crisis that occured in 2007 has put the way the financial system works at the heart of the economists and politicians preoccupations. If the causes and effects of this crisis have been explored in depth, a fundamental question has not been addressed : does the financial system allocates the savings efficiently and is its efficiency worth its cost ? For the last thirty years, this system has become more and more costly whereas the performances of the American economy as a whole have been on a decreasing trend. The author considers that economists face the challenge to measure this efficiency with regard to its cost. This question might seem straightforward but it is practically highly complex. That is why he suggests a few concrete steps that might reduce the risks of a new financial crisis in the meanwhile.
Classification JEL : C0, E44, G0, G01.
Les collectivités locales et les produits structurés
Authors: Bouvard Michel 
Published: April 2015

Les difficultés financières de plusieurs collectivités locales en France et dans d’autres pays européens du fait du recours à un endettement à base de produits structurés ont été mises en avant au cours de ces derniers mois. L’utilisation de ces produits doit cependant être relativisée : ainsi en 2009, seuls 9 % de la dette des collectivités locales françaises reposaient sur des produits structurés volatiles. La charte Gissler s’est attaquée aux problèmes d’information et de transparence de ces produits. Se pose malgré tout la nécessité d’une meilleure formation de l’encadrement et des élus locaux. Mais un des problèmes majeurs reste celui du niveau d’information des assemblées délibérantes sur la gestion de la trésorerie et de la dette, sur le niveau de risque induit et sur la prise de décisions. Par ailleurs, il importe aussi que les prêteurs aient une vision complète de la situation financière des emprunteurs.
Classification JEL : G21, H74.
Diagnosis and presurgical orthopedics in infants with cleft lip and palate
Authors: Bilgic Fundagul , Sozer Ozlem Akinci 
Published: April 2015

AbstractCleft lip and palate are one of the most common congenital craniofacial malformations. While preoperative treatment for infants with cleft lip and palate is still a scientific debate, patients with this malocclusion usually have to be treated from infancy to adulthood. Orthodontist plays an important role in the treatment of patients with cleft lip and palate. The purpose of this review is to give information about cleft lip and palate and presurgical nasoalveolar molding.
Comparison of human pulp tissue dissolution capacities of different irrigating solutions: An in vitro study
Authors: Jain Atul , Shrivastava Tarun Vijay , Tabassum Sameena , Bahuguna Rachana 
Published: April 2015

Abstract
Background: Organic tissue dissolution is considered as one of the most important and desirable property of endodontic irrigant, any soft tissue remnant, harboring bacteria, left in the canal after endodontic therapy may be the cause of failure. Aim: The present study aimed at assessing and comparing the human pulp dissolution (thereby eliminating the bacteria) capacity of some potential endodontic irrigants viz., sodium hypochlorite (NaOCl) (2.5% and 5.25%), chlorine dioxide (5%) and peracetic acid (5%). Materials and Methods: Forty human pulp specimens from extracted premolars were taken and weighed. They were immersed in test solution for 30 min, dried on filter paper and weighed again. The percentage weight loss was calculated and statistically analyzed. Conclusion: It can be concluded that NaOCl showed the best tissue dissolution capacity, followed by 5% peracetic acid.
Interdental cleaning: A cross-sectional survey of patients attending a tertiary health institution in Nigeria
Authors: Dosumu Elizabeth B. , Lawal Folake B. 
Published: April 2015

Abstract
Background: Removal of bacterial plaque, the primary etiological factor for periodontal disease, from the oral cavity is one of the modes of preventing this disease, however it is not known if bacterial plaque formed in interdental areas are being cleaned effectively like other tooth surfaces since they are relatively inaccessible. Aim: The aim was to determine the interdental cleaning behavior of patients attending dental clinics of a tertiary health institution in a developing country. Materials and Methods: A cross-sectional study in which information such as; tooth surfaces being cleaned regularly, interdental cleaning aids, cleaning frequency, knowledge of interdental cleaning and its source was collected using structured questionnaires from adult patients attending the Dental Centre of the University College Hospital, Ibadan, Nigeria. Data were analyzed using SPSS version 21. Results: A total of 246 patients participated in the study and the mean age was 40.4years (standard deviation = 17.4). There were 134 (54.5%) females. Only 86 (35%) were aware of interdental cleaning and 57 (23.2%) practiced it regularly; 39 (15.9%) used dental floss, 12 (4.9%) interdental brushes, 5 (2.0%) wood sticks and 1 (0.4%) used rubber tip stimulators. Two patients used blade and broomstick in addition. The main reason for not cleaning interdentally was no prior knowledge in 160 (65.0%) patients. Conclusion: Less than a quarter of the patients in this study engaged in regular cleaning of the interdental surfaces and lack of knowledge was the major reason for not doing so. Dissemination of information about the importance of interdental cleaning is therefore recommended.
Prevalence of permanent anterior tooth fracture due to trauma in South Indian population
Authors: Hegde Mithra Nidharsh , Sajnani Ankit Rajesh 
Published: April 2015

Abstract
Aim: The aim of the study is to determine the prevalence of permanent anterior teeth fracture due to trauma in South Indian population. Materials and Methods: After formal consent, study was conducted on 2000 patients reporting for treatment in A B Shetty Memorial Institute of Dental Sciences and Rural Satellite Centers from June to December 2013. They were examined under good illumination using sterilized mouth mirror, explorer and cotton rolls. Results were evaluated using Pearson Chi-square test. Results: Of 2000 patients, overall prevalence of anterior teeth fracture due to trauma was 14.85%, 53.9% cases were noticed in the age group of 15-30 years, 20.2% cases in an age group of 12-15 years. Of 14.85% (297) cases, 53.9% males and 46.1% females had anterior teeth fracture, 88.67% cases were with respect to maxillary arch and 11.33% cases were with respect to mandibular arch. 43.9% patients had enamel and dentin fracture, only enamel fracture was seen in 31.6% patients and the least was 6.01% which showed displacement of tooth without crown or root fracture, 67% were because of falls and rest of the 33% of patients had anterior tooth fracture because of violence, sports and traffic accidents, 71.42% cases had fracture with maxillary central incisor. Furthermore, 59.6% cases were seen with Class II Division I malocclusion. Conclusions: In the present study we noticed that fall was the most frequent cause and are seen more in males with an increased prevalence in 15-30 years of age. Furthermore, fracture of maxillary central incisor was most common and among all, fractures involving enamel and dentin were most common.
Systematic Representation of Relationship Quality in Conflict and Dispute: for Construction Projects
Authors: Babaeian Jelodar Mostafa , Wing Yiu Tak , Wilkinson Suzanne 
Published: April 2015

The construction industry needs to move towards more relational procurement procedures to reduce extensive losses of value and avoid conflicts and disputes. Despite this, the actual conceptualization and assessment of relationships during conflict and dispute incidents seem to be neglected. Via a review of literature, relationship quality is suggested as a systematic framework for construction projects. General system theory is applied and a framework consistent of four layers respectively labelled as triggering, antecedent, moderation and outcome is suggested. Two different case studies are undertaken to represent the systematic framework; which verifies that changes in contracting circumstances and built environment culture can affect the identified layers.Through system reliability theories a fault tree is derived to represent a systematic framework of relationship quality. The combinations of components, causes, and events for two case studies are mapped out through fault tree. By analysing the fault tree the combination of events that lead to relationship deterioration may be identified. Consequently the progression of simple events into failure is formulized and probabilities allocated. Accordingly the importance and the contribution of these events to failure become accessible. The ability to have such indications about relationship quality may help increase performance as well as sustainable procurement. Paper Type: Research article
On Solvability of an Inverse Boundary Value Problem for Pseudo Hyperbolic Equation of the Fourth Order
Authors: T. Mehraliyev Yashar , Huseynova Afaq F. 
Published: April 2015

We analyze the solvability of the inverse boundary problem with an unknown coefficient depended on time for the pseudo hyperbolic equation of fourth order with periodic and integral conditions.The initial problem is reduced to an equivalent problem. With the help of the Fourier method, the equivalent problem is reduced to a system of integral equations. The existence and uniqueness of the solution of the integral equations is proved. The obtained solution of the integral equations is also the only solution to the equivalent problem. Basing on the equivalence of the problems, the theorem of the existence and uniqueness of the classical solutions of the original problem is proved.