bluuebunny/crossref_metadata_2025 huggingface dataset:
Students’ Sense of Belonging: The Development of a Predictive Retention Model
Authors: Davis Glenn M. , Hanzsek-Brill Melissa B. , Petzold Mark Carl , Robinson David H.
Published: February 2019

Educational institutions increasingly recognize the role that student belonging plays in retention. Many studies in this area focus on helping students improve a sense of belonging before they matriculate or identifying belonging as a reason for their departure. This study measures students’ sense of belonging at key transition points during the first year and finds that social belonging and academic performance are both strong predictors of retention that are not necessarily correlated. These results suggest that a comprehensive, focused outreach protocol that encompasses both social and academic factors could have a positive impact on student persistence.
Information Support Model for the Children’s Leisure and Tourism Industry within the Annual Planning Cycle
Authors: FEDYUNIN Dmitry Valerievich , BEZPALOV Valery Vasilyevich , LOCHAN Sergey Alexandrovich , GOLOVINA Vera Viktorovna , IVANOV Andrey Viktorovich
Published: February 2019

In the contemporary world, tourism is one of the most profitable and fast-growing sectors of the economy, being a stabilizer of a state’s social economic development, providing an inflow of foreign currencies, improving foreign trade and influencing the development of related sectors. The establishment of a stable tourist services market helps resolve the problem of unemployment and social support of the poor. The study’s purpose is to review seasonality factors related to the creation of a positive image of the children’s leisure and tourism system in the Russian Federation. During the study, the authors applied the systematic approach, strategic approach, analytical approach, methods of comparison and analogy, expert estimates of media monitoring and qualitative methods of text analysis. Main results relate to the theoretical substantiation and the development of methodical recommendations on information media support of the children’s leisure and tourism system. The substantiation of novelty is as follows: the authors found factors of overcoming the lack of a systematic approach and chaotic nature of information media events aimed at supporting the children’s leisure and tourism system. As a result, measures to improve the efficiency of information media support of the events conducted by children’s leisure and tourism organizers depend on the competence and qualification of employees who are in charge of children’s entertainment.
Cross-Functional Training of Front-Line Hotel Employees, In-Role and Extra-Role Job Performance, Customer Satisfaction, and Customer Loyalty: A conceptual Model Proposal
Authors: SUMANEEVA Ksenia A. , ELUWOLE Kayode Kolawole , AVCI Turgay
Published: February 2019

The purpose of this paper is to develop the theoretical conceptual model regarding benefits of cross-functional training of frontline hotel employees from interrelated departments of hospitality organizations for further investigation. This study aims to review the hospitality management literature and provide the conceptual model of cross-functional training and its connection to customer loyalty via the mediating role of individual job performance (e.g., in-role and extra-role employees’ job performance) and customer satisfaction in the hotel context.

This paper identifies the gap within existing studies regarding consequences of frontline hotel employees’ cross-functional training and proposes the new conceptual model for the further investigation through extensive literature review of relevant literature.

Hotel managers implement training programs to develop frontline hotel employees’ skills, motivate them to perform better and provide high-quality service to the customers. This paper proposes that cross-functional training of frontline hotel employees can be used to build strong coordination and integration between frontline hotel employees from interrelated hotel departments (e.g., front office, housekeeping, room service, F and B), increase employees’ awareness regarding other departments’ procedures, what, in turn, may significantly improve their individual job performance (e.g., in-role and extra-role performance), increase customer satisfaction and customers loyalty.

This study attempts to fill the existing gaps in the literature regarding the benefits of cross-functional training by suggesting the new conceptual model regarding frontline hotel employees’ cross-functional training, and its link to frontline hotel employees’ in-role and extra-role job performance, customer satisfaction, and customer loyalty for the further investigation. This proposed conceptual model integrates contribution of three main parties of the hotel organization (e.g., supervisors, frontline hotel employees, and customers) as the proposed variables should be investigated by collecting data from different sources.
Entrepreneurship in Tourism Sector in Central European Country: Hospitality Trends in the Czech Republic in 2007 - 2016
Authors: MURA Ladislav , KAJZAR Patrik
Published: February 2019

The aim of this paper is to evaluate the impact of occupancy in accommodation establishments in the Czech Republic at an average pace of real wage growth (%), GDP (%) and unemployment rate (%) in the period 2007-2016. The main sources of information utilized in contributions are based on tourism statistics and selected macroeconomic indicators obtained from the website of the Czech Statistical Office. The data was analysed using SAS software. The authors use regression analysis. It deals with dependence of the quantitative variable on one or more quantitative variables. The main results of this survey indicate an increase of  occupancy in collective acommodation establishements in the Czech Republic between 2007 - 2016, as well as a moderate increase was detected in  real wages and the GDP. While detecting an  increase of  occupancy in collective acommodation establishements in the Czech Republic, the fall of unemployment rate was recognized.
ABCB4/MDR3 in health and disease – at the crossroads of biochemistry and medicine
Authors: Prescher Martin , Kroll Tim , Schmitt Lutz
Published: February 2019

Several ABC transporters of the human liver are responsible for the secretion of bile salts, lipids and cholesterol. Their interplay protects the biliary tree from the harsh detergent activity of bile salts. Among these transporters, ABCB4 is essential for the translocation of phosphatidylcholine (PC) lipids from the inner to the outer leaflet of the canalicular membrane of hepatocytes. ABCB4 deficiency can result in altered PC to bile salt ratios, which led to intrahepatic cholestasis of pregnancy, low phospholipid associated cholelithiasis, drug induced liver injury or even progressive familial intrahepatic cholestasis type 3. Although PC lipids only account for 30–40% of the lipids in the canalicular membrane, 95% of all phospholipids in bile are PC lipids. We discuss this discrepancy in the light of PC synthesis and bile salts favoring certain lipids. Nevertheless, the in vivo extraction of PC lipids from the outer leaflet of the canalicular membrane by bile salts should be considered as a separate step in bile formation. Therefore, methods to characterize disease causing ABCB4 mutations should be considered carefully, but such an analysis represents a crucial point in understanding the currently unknown transport mechanism of this ABC transporter.
Molecular effects of dietary fatty acids on brain insulin action and mitochondrial function
Authors: Chudoba Chantal , Wardelmann Kristina , Kleinridders André
Published: February 2019

The prevalence of obesity and its co-morbidities such as insulin resistance and type 2 diabetes are tightly linked to increased ingestion of palatable fat enriched food. Thus, it seems intuitive that the brain senses elevated amounts of fatty acids (FAs) and affects adaptive metabolic response, which is connected to mitochondrial function and insulin signaling. This review will address the effect of dietary FAs on brain insulin and mitochondrial function with a special emphasis on the impact of different FAs on brain function and metabolism.
Video Steganography Using Knight Tour Algorithm and LSB Method for Encrypted Data
Authors: Younus Zeyad Safaa , Younus Ghada Thanoon
Published: February 2019

This paper aims to propose a method for data hiding in video by utilizing the least significant bit (LSB) method and improving it by utilizing the knight tour algorithm for concealing the data inside the AVI video file and using a key function encryption method for encrypting the secret message. First, the secret message is encrypted by utilizing a mathematical equation. The key used in the equation is a set of random numbers. These numbers differ in each implementation to warrant the safety of the hidden message and to increase the security of the secret message. Then, the cover video was converted from a set of frames into separated images to take the advantage of the large size of video file. Afterward, the knight tour algorithm is utilized for random selecting of the pixels inside the frame utilized for embedding the secret message inside it to overcome the shortcoming of the conventional LSB method that utilized the serial selection of pixel and to increase the robustness and security of the proposed method. Afterward, the encrypted secret message is embedded inside the selected pixels by utilizing the LSB method in bits (7 and 8). The observational results have drawn that the proposed method has a superior performance compared to the previous steganography method in terms of quality by a high PSNR of 67.3638 dB and the lowest MSE of 0.2578. Furthermore, this method preserves the security where the secret message cannot be drawn out without knowing the decoding rules.
Neighboring group effect on the thermal degradation of polyacrylamide and its derivatives
Authors: Jiang Chengyang , Xia Xiaochun , Kang Shujuan , Dong Han , Sakinejad Parastoo , Ma Qisheng , Tang Yongchun
Published: February 2019

Being an important class of water-soluble synthetic polymers, polyacrylamide (PAM) and its derivatives have found a wide range of applications in the oil and gas industry. Due to the increasingly active exploration of deep and ultra-deep wells, PAM-based polymers are more and more frequently applied under hostile subterranean conditions, particularly high temperature. Therefore, it becomes an imminent research topic to elucidate the thermal degradation pathways of PAM-based polymers in order to upgrade these chemicals for more challenging scenarios. Neighboring groups attached to the same polyvinyl backbone have been suggested to exert an effect to the degradation of the PAM-based polymers. Herein we report a combined theoretical and experimental study on the energetics of such neighboring group effect. Taking advantage of a computational method based on density functional theory, we have identified two competing degradation pathways in neutral medium and have calculated their respective activation energies. These results enable us to predict the relative thermal stabilities of a series of PAM-based polymers, and we have also used temperature-variant rheology measurements to verify these predictions. This work will guide the design of better heat-resistant PAM-based products.
Drosophilaas a Genetic Model for Hematopoiesis
Authors: Banerjee Utpal , Girard Juliet R , Goins Lauren M , Spratford Carrie M
Published: February 2019

In this FlyBook chapter, we present a survey of the current literature on the development of the hematopoietic system in Drosophila. The Drosophila blood system consists entirely of cells that function in innate immunity, tissue integrity, wound healing, and various forms of stress response, and are therefore functionally similar to myeloid cells in mammals. The primary cell types are specialized for phagocytic, melanization, and encapsulation functions. As in mammalian systems, multiple sites of hematopoiesis are evident in Drosophila and the mechanisms involved in this process employ many of the same molecular strategies that exemplify blood development in humans. Drosophila blood progenitors respond to internal and external stress by coopting developmental pathways that involve both local and systemic signals. An important goal of these Drosophila studies is to develop the tools and mechanisms critical to further our understanding of human hematopoiesis during homeostasis and dysfunction.
Modulation of Gene Silencing by Cdc7p via H4 K16 Acetylation and Phosphorylation of Chromatin Assembly Factor CAF-1 in Saccharomyces cerevisiae
Authors: Young Tiffany J , Cui Yi , Irudayaraj Joseph , Kirchmaier Ann L
Published: February 2019

CAF-1 is an evolutionarily conserved H3/H4 histone chaperone that plays a key role in replication-coupled chromatin assembly and is targeted to the replication fork via interactions with PCNA, which, if disrupted, leads to epigenetic defects. In Saccharomyces cerevisiae, when the silent mating-type locus HMR contains point mutations within the E silencer, Sir protein association and silencing is lost. However, mutation of CDC7, encoding an S-phase-specific kinase, or subunits of the H4 K16-specific acetyltransferase complex SAS-I, restore silencing to this crippled HMR, HMRae**. Here, we observed that loss of Cac1p, the largest subunit of CAF-1, also restores silencing at HMRae**, and silencing in both cac1Δ and cdc7 mutants is suppressed by overexpression of SAS2. We demonstrate Cdc7p and Cac1p interact in vivo in S phase, but not in G1, consistent with observed cell cycle-dependent phosphorylation of Cac1p, and hypoacetylation of chromatin at H4 K16 in both cdc7 and cac1Δ mutants. Moreover, silencing at HMRae** is restored in cells expressing cac1p mutants lacking Cdc7p phosphorylation sites. We also discovered that cac1Δ and cdc7-90 synthetically interact negatively in the presence of DNA damage, but that Cdc7p phosphorylation sites on Cac1p are not required for responses to DNA damage. Combined, our results support a model in which Cdc7p regulates replication-coupled histone modification via a CAC1-dependent mechanism involving H4 K16ac deposition, and thereby silencing, while CAF-1-dependent replication- and repair-coupled chromatin assembly per se are functional in the absence of phosphorylation of Cdc7p consensus sites on CAF-1.
Innovación y crecimiento inclusivo en Costa Rica: El caso del sector lácteo
Authors: Orozco Barrantes Jeffrey , Barboza Arias Luis
Published: February 2019

El propósito de este artículo es analizar la estructura del sistema de innovación agropecuario y su relación con el crecimiento inclusivo en el sector lácteo de Costa Rica. El marco conceptual que se utiliza incorpora tres conceptos principales: el desarrollo sostenible, los sistemas de innovación y el crecimiento inclusivo. Sugerimos la articulación de estos conceptos en un marco analítico conjunto con la finalidad de entender el tipo de interacciones que se establecen entre el desarrollo de las innovaciones y el crecimiento inclusivo a nivel sectorial. La ganadería de leche se ha visto afectada en los últimos veinticinco años por cambios en la producción primaria y el mercado. En consecuencia, la planificación de procesos para la innovación ha sido el resultado de un conjunto de dinámicas históricas y organizacionales fuertemente influenciadas por la participación de las cooperativas y sus objetivos de desarrollo productivo. Se identifican al menos cuatro ejes prioritarios para la gestión de la innovación y la competitividad del sector: mejoramiento genético, nutrición, manejo de pasturas y adaptación al cambio climático. Concluimos que cualquier esfuerzo para estimular la innovación y el conocimiento en la cadena láctea, sea este de carácter institucional o apoyado desde la política pública debe: corresponderse con los objetivos de la política de desarrollo nacional, contener una perspectiva de desarrollo territorial y dialogar de modo reflexivo con los diferentes actores que intervienen en la gestión del aprendizaje y el establecimiento de sinergias para la acción colectiva.
Sistemas políticos de Centroamérica. Análisis histórico comparado
Authors: Miranda Delgado Rafael Gustavo
Published: February 2019

El objetivo de este trabajo es comparar desde perspectiva histórica los sistemas políticos de Centroamérica. Aquí se afirma que Centroamérica es una región muy diversa en experiencias y en calidad de la democracia, siendo Costa Rica el caso histórico y contemporáneo más exitoso de la subregión. En el resto de los países se observan democracias relativamente jóvenes y frágiles, sin experiencias históricas de democracia, con Estados muy débiles, sin consenso social y una ciudadanía limitada que es tratada de forma clientelar y es víctima de la pobreza y la desigualdad.
Sikeres extracorporalis membránoxigenizációs (ECMO-) kezelés Legionella-pneumoniában
Authors: Madurka Ildikó , Bartók Tibor , Kormosói-Tóth Krisztina , Schönauer Nóra , Elek Jenő , Bobek Ilona
Published: February 2019

Abstract:

The mortality of severe ARDS is almost 60%. Ventilation-associated lung-injury can be avoided by low-pressure, low-volume ventilation. Potential use of ECMO in case of refractory hypoxemia beside modern ventilatory therapy can be considered. Increasing numbers of respiratory ECMO runs are seen worldwide, though the efficacy remains controversial. The authors present the first successful venovenous-ECMO treatment in severe ARDS in our Institute. We report the case of a 67-year-old male who was admitted with community-acquired pneumonia caused by Legionella. Despite empirical and later targeted antibiotic therapy, severe ARDS with sepsis evolved. Neither ventilation nor prone position resulted in permanent improvement in oxygenation. The patient was referred to our Institute for extracorporeal life support (ECLS) therapy. On admission, blood gas showed severe hypoxemia with mild hypercapnia (PaO2/FiO2: 60, pCO2: 53 mmHg at PEEP: 14 mmHg, PIP: 45 mmHg). X-ray showed bilateral patchy infiltrates while cardiac impairment (EF: 45%) and dilated right ventricle were seen on echocardiography. Elevated pulmonary artery pressure (mPAP: 41 mmHg) was measured. After implantation of femoral-jugular VV ECMO, oxygen saturation was appropriate with lung protective ventilation (FiO2: 0.5, TV: 3–4 ml/kg). Improving lung function enabled us to stop ECMO after 8 days and further 5 days later the patient was weaned off ventilation. After 21 days of intensive care we discharged him to the referral hospital. By reporting this case we emphasise the potential role of respiratory ECMO. Consideration should be given to increase the contingent of this modality in the Hungarian intensive care in accordance with international practice. Orv Hetil. 2019; 160(6): 235–240.
Mejora continua en productividad organizacional y su impacto en colaboradores. Colombia, 2017.
Authors: Zambrano-Valdivieso Oscar , Almeida-Salinas Orlando
Published: February 2019

Objetivo: El presente artículo de investigación surge del interés por analizar las estrategias de mejora continua para el proceso productivo de las organizaciones y su impacto en la calidad de vida de los colaboradores en Colombia durante el periodo 2017. Método: Se realizó una revisión sistemática de la literatura con el fin de dar respuesta a la siguiente pregunta de investigación ¿Por qué analizar las estrategias de mejora continua para el proceso productivo de las organizaciones y su impacto en la calidad de vida de los colaboradores en Colombia durante el periodo 2017? En cuanto al diseño metodológico, el enfoque de investigación es de tipo documental cualitativo, con alcance descriptivo y un diseño basado en la teoría fundamentada. Resultados: Los resultados obtenidos permiten observar que el impacto de la estrategia de mejora continua utilizada por las organizaciones para el proceso productivo juega un papel determinante en la calidad de vida de los colaboradores, siendo estos la fuente primordial para el logro de metas y objetivos estratégicos orientados hacia el crecimiento y expansión organizacional, sin embargo la alta gerencia es la responsable de propiciar una calidad de vida laboral adecuada, al involucrar y motivar a los colaboradores en la construcción y diseño de las estrategias empresariales. Discusiones: Mejorar y mantener los estándares organizacionales, resulta ser una responsabilidad principal del proceso de mejoramiento continuo que debe ser liderada por la alta gerencia para poder alcanzar los preceptos expuestos por la filosofía japonesa. En cuanto a la calidad de vida laboral se plantea la necesidad de recuperar los componentes subjetivos y sociológicos orientados al bienestar integral de la persona y su diversidad, dejando a un lado el bienestar material.  Conclusiones: El impacto de la estrategia de mejora continua utilizada por las organizaciones para el proceso productivo juega un papel determinante en la calidad de vida de los colaboradores, teniendo en cuenta que las empresas tienden a ser competitivas y luchan en el mercado global por mantener su liderazgo, han comprendido que los colaboradores son la fuente primordial para el logro de metas y objetivos estratégicos orientados hacia el crecimiento y expansión organizacional.
Gestión de la formación de los docentes en el área de administración ante los retos competitivos y tecnológicos del siglo XXI
Authors: Muñoz-Reyes Yessica , Almendrales Wendy
Published: February 2019

La corrupción, el desequilibrio financiero, el desempleo, la inflación, entre otros factores, han ocasionado crisis en la sociedad actual, estos han producido retraso en el desarrollo económico, educativo y social de los países de América Latina. Colombia no está exenta a estas problemáticas, por el contrario es un país que actualmente está siendo azotado por las dificultades económicas y financieras, los actos corruptivos en el gobierno nacional, el narcotráfico y una serie de conflictos que han originado inestabilidad en el sistema productivo del país, por lo tanto ha afectado el crecimiento en cuanto a competitividad, innovación y tecnología.

Ante estas problemáticas y desde el gobierno nacional es necesario reestructurar las políticas educativas a nivel de educación superior. Las instituciones de Educación Superior incluidas las corporaciones técnicas y tecnológicas deben reformar sus lineamientos institucionales adaptándolas a las exigencias del mercado, es por esto que dentro de los parámetros debe estar incluido la formación del docente como eje transversal del aprendizaje de los estudiantes.
Management of teachers’ education in the area of Administration facing the competitive and technological challenges of the XXI century
Authors: Muñoz-Reyes Yessica , Almendrales Wendy
Published: February 2019

Corruption, financial disequilibrium, unemployment, inflation, among other factors, have been the cause of the general crisis in today’s society, they have produced a time lag for the economic, educational and social development of Latin American countries. Colombia is not the exception to this set of problems, on the contrary, it is a country that today has been hit by economic and financial difficulties, corruptive acts at a national governmental level, drug trafficking, and a series of conflicts that have brought instability to the productive system of the country, therefore affecting growth in as much as competitiveness, innovation and technology.

Facing these problems from the national government point of view, it is necessary to shape some educative policies at a higher educational level. The Higher Educational Institutions, including technical and technological must make reforms to their institutional structures, adapting them to market demands. That is why, inside general parameters, the education of teachers must be included as a main cross sectional axis for student’s learning.
Gestión escolar y compromiso organizacional en el logro de aprendizajes de educación Intercultural Bilingüe en el nivel primario
Authors: Martínez Huamán Edgar Luis , Vásquez Villanueva Salomón
Published: February 2019

La investigación tuvo como objetivo analizar los resultados cualitativos que permiten explicar los resultados cuantitativos sobre gestión escolar y compromiso organizacional en el logro de aprendizajes en las instituciones de educación primaria: Educación Intercultural Bilingüe de la provincia de Andahuaylas. El estudio se enmarca dentro de la investigación mixta. Para la parte cuantitativa, se utilizó el cuestionario de gestión escolar adaptado de la matriz de evaluación de la calidad de la gestión de Instituciones de educación básica regular cuyo prueba de fiabilidad de Alfa de Cronbach fue de ,988; Respecto al compromiso organizacional se utilizó el cuestionario propuesto por Meyer y Allen cuya prueba de fiabilidad fue de ,987; para logros de aprendizaje se utilizó los resultados de la Evaluación Censal de Estudiantes (ECE) de cuarto grado de primaria de Educación Intercultural Bilingüe (EIB) en lectura, tanto en lengua originaria como en castellano como segunda lengua del Ministerio de Educación. La población para la parte cuantitativa consideró a 54 instituciones educativas del nivel de educación primaria que aplican la Educación Intercultural Bilingüe en la provincia de Andahuaylas, 459 estudiantes y 67 docentes. Para la parte cualitativa se consideró seis docentes, tres directores y un coordinador. Los resultados obtenidos permiten demostrar que existe relación significativa positiva entre gestión escolar y compromiso organizacional siendo la correlación de Spearman de 0,897**. Sobre gestión escolar, las instituciones educativas se encuentran ubicadas en el nivel de poco avance y los resultados sobre logros de aprendizaje se encuentran en el  nivel en proceso
KATILIMCILAR KİTLESEL AÇİK ÇEVRİMİÇİ DERSLERE NEDEN KATİLİYORLAR? ATADEMİX ÖRNEĞİ
Authors: AYDEMİR Melike , ÇELİK Embiya , KURŞUN Engin , KARAMAN Selçuk
Published: February 2019

Bu çalışmada Kitlesel Açık Çevrimiçi Derslerdeki (KAÇD) katılımcıların KAÇD’ye katılım nedenlerini performans beklentisi, çaba beklentisi, kolaylaştırıcı şartlar ve sosyal faktörler açılarından tespit etmek ve KAÇD’den haberdar oldukları kaynakları belirlemek amaçlanmıştır. Araştırmada nicel araştırma yöntemlerinden tarama yöntemi temel alınmıştır. Çalışmanın örneklemini Atatürk Üniversitesi’nin KAÇD platformu olan Atademix’teki kurslarda yer alan ve uygun örnekleme yöntemiyle seçilmiş 698 katılımcı oluşturmaktadır. Bu katılımcılar Atademix’teki kurslardan en az birine kayıtlı katılımcılardan oluşmaktadır. Bu çalışmada veri toplama aracı olarak anket kullanılmıştır. Anketin yapısı oluşturulurken Teknoloji Kabul ve Kullanım Birleştirilmiş Modeli kullanılmıştır. Bu modelde performans beklentisi, çaba beklentisi, kolaylaştırıcı şartlar ve sosyal faktörler boyutları yer almaktadır. Verilerin analizinde betimsel istatistiki yöntemler kullanılmıştır. Katılımcıların en çok sosyal medya aracılığı ile KAÇD’den haberdar oldukları tespit edilmiştir. Katılımcıların KAÇD’ye performans beklentisi, çaba beklentisi ve kolaylaştırıcı şartlar nedenleriyle katılımını belirleyen maddelerin ortalamalarının yüksek olduğu ve sosyal faktörün diğer faktörlere oranla ortalamasının düşük olduğu belirlenmiştir.
SINIF ÖĞRETMENLİĞİ ÖĞRENCİLERİNİN KONUŞMA KAYGILARININ İNCELENMESİ
Authors: KURU Oğuzhan
Published: February 2019

Bu araştırmada eğitim fakültesinde öğrenim gören
sınıf öğretmenliği öğrencilerinin yaşadıkları konuşma kaygılarının çeşitli
değişkenler açısından farklılık gösterip göstermediği değerlendirilmiştir. Bu
araştırmanın amacı, iletişimin temelini oluşturan ve sınıf öğretmeni
adaylarının mesleklerinin temel gereği olan konuşma becerilerinde kaygı yaşayıp
yaşamadıklarını veya hangi düzeyde yaşadıklarını tespit etmektir. Sınıf
öğretmeni adaylarının konuşma kaygılarını ortaya koymaya yönelik bu araştırmada
tarama modeli kullanılmıştır. Araştırmanın çalışma grubunu 2016-2017 eğitim
öğretim yılında Kahramanmaraş Sütçü İmam Üniversitesi Eğitim Fakültesi Sınıf
Öğretmenliği Anabilim Dalında tüm sınıf düzeylerinde öğrenim gören öğrenciler
oluşturmaktadır. Çalışma grubu amaçsal örnekleme çeşitlerinden tipik durum
örnekleme yöntemi ile seçilmiş 231 öğrenciden oluşturmaktadır. Araştırmada veri
toplamak amacıyla Kinay ve Özkan (2014) tarafından geliştirilen, üç alt
boyuttan oluşan ve Cronbach Alfa değeri .94 bulunan “Konuşma Kaygısı” ölçeği
kullanılmıştır. Araştırmada sayısal verilerin analizinde SPSS 22 paket programı
kullanılmıştır. Araştırmanın sonuçlarına göre cinsiyet temele alındığında
öğrencilerin fizyolojik boyutta konuşma kaygılarında anlamlı farklılık tespit
edilmiştir. Sınıf düzeylerine göre ise tüm alt boyutlarda dördüncü sınıf
öğrencilerinin diğer sınıf düzeylerine göre daha fazla konuşma kaygısı
yaşadıkları tespit edilmiştir.
FEN BİLGİSİ ÖĞRETMEN ADAYLARININ GENETİĞİ DEĞİŞTİRİLMİŞ ORGANİZMALAR (GDO) İLE İLGİLİ ALGILARININ BELİRLENMESİ
Authors: KIŞOĞLU Mustafa , KELEŞ Özgül
Published: February 2019

Bu araştırmanın amacı, fen
bilgisi öğretmen adaylarının Genetiği Değiştirilmiş Organizmalar (GDO) ile
ilgili algılarının metaforlar aracılığıyla belirlenmesidir. Araştırmanın
çalışma grubunu Aksaray Üniversitesi Eğitim Fakültesi Fen Bilgisi Eğitimi Anabilim
Dalı’nın 1., 2., 3. ve 4.  sınıfında
öğrenim görmekte olan toplam 150 (111 kız, 39 erkek) öğretmen adayı
oluşturmaktadır. Araştırmada nitel araştırma yöntemlerinden fenomonoloji deseni
kullanılmıştır. Araştırmaya katılan öğretmen adaylarının GDO’ya ilişkin
algılarını ortaya çıkarmak için her bir öğretmen adayına “Genetiği
değiştirilmiş organizmalar (GDO) … gibidir, çünkü…” cümlesinin yazılı olduğu
bir kağıt verilmiş ve bu cümleyi tamamlamaları istenmiştir. Elde edilen
verilerin analizinde NVIVO 11 programından yararlanılmıştır. Verilerin
anlamlandırılmasında ve aralarındaki ilişkilerin ortaya çıkarılmasında içerik
analizi yöntemi kullanılmıştır. Araştırma sonunda öğretmen adaylarının GDO’ya
ilişkin dokuz ayrı kategoride 110 metafor ürettikleri belirlenmiştir. En fazla
metafor “Diğer” ve “GDO Sağlık İlişkisi” kategorilerinde geliştirilmiştir.
Katılımcıların ürettikleri metaforların nedenlerinin dört farklı kategoride
toplandığı görülmüştür. Öğretmen adaylarının GDO ile ilgili ürettikleri
metaforların nedenleri en fazla “Yarattığı Riskler” kategorisinde toplanmıştır.
Bulgular sınıf düzeyi yükseldikçe GDO’lu ürün kullanmaya yönelik olumsuz
görüşlerin azaldığını göstermiştir. Birinci sınıfta okuyan öğretmen adayları
GDO’lu ürün kullanmaya yönelik hiç olumlu görüş belirtmemişlerdir. Ayrıca
araştırmaya katılan kız öğrencilerin erkek öğrencilere oranla GDO’lu ürünlere
yönelik daha olumsuz bir görüşe sahip oldukları tespit edilmiştir.
AİLELERİN SINIF ÖĞRETMENLERİNE UYGULADIĞI MOBBİNG DAVRANIŞLARI
Authors: TÜRK Harun , KIROĞLU Kasım
Published: February 2019

Mobbing; iş yerlerinde bir
bireyin, belirli bir grup tarafından düşmanca tavırlara sürekli ve sistematik
şekilde maruz bırakılması ve bu davranışlar sonucunda mağdur kişinin sağlığının
bozulması olarak açıklanabilir. Bu çalışmanın amacı, sınıf öğretmenlerinin,
ailelerin uyguladığı mobbing davranışlarına yönelik algıları ve bu
davranışlarla baş etme yöntemlerini nitel bir araştırma yoluyla incelemektir. Bu amaca ulaşabilmek için
ölçüt örnekleme yöntemi tercih edilerek, her sınıf düzeyinden beş öğretmen
olmak üzere, toplam yirmi öğretmenle (on erkek, on kadın)  yarı yapılandırılmış görüşmeler
gerçekleştirilmiştir. Araştırma verilerinin çözümlenmesinde betimsel analiz
tekniği kullanılmıştır. Araştırma bulgularına göre, çalışmaya katılan
sınıf öğretmenlerinin birçoğunun mobbing mağduru olduğu belirlenmiştir. Sınıf
öğretmenlerinin mobbing davranışlarına maruz bırakılmalarının nedenlerine
ilişkin verdiği yanıtlar, mobbing uygulayan kişiden kaynaklı nedenler ve
kurumsal nedenler olarak belirlenmiştir. Araştırma sonucuna göre, mobbing
davranışlarına maruz bırakılan sınıf öğretmenlerinin sağlıklarının bozulduğu
belirlenmiştir. Sınıf öğretmenlerinin birçoğunun, MEB’in yetersiz desteği ve
yaşadıkları endişe nedeniyle, hukuksal mücadele yolunu tercih etmedikleri
görülmektedir.
TÜRKİYE’DE ÖZEL EĞİTİM ALANINDA YAPILAN MATEMATİK ARAŞTIRMALARININ BETİMSEL ANALİZİ
Authors: Yıkmış Ahmet , Kot Mehtap , Terzioğlu Nesime Kübra , Aktaş Burcu
Published: February 2019

Araştırmanın amacı Türkiye’de özel eğitimde
matematik öğretimi ile ilgili 1998-2018 yılları arasında yapılmış olan
çalışmaların içerik ve yöntemsel analizini yapmaktır. Bu amaç doğrultusunda
araştırmada doküman incelemesi metodu kullanılmıştır. Mevcut araştırmada
dokümanlara ulaşmak amacı ile Google Akademik arama motoru, Yükseköğretim
Kurulu’nun (YÖK) Ulusal Tez Merkezi internet sitesi ve Abant İzzet Baysal
Üniversitesi Kütüphanesi abone veri tabanlarından yararlanılmıştır. Bu veri
tabanlarına “matematik”, “matematik öğretimi”, “toplama işlemi”, “çıkarma
işlemi”, “çarpma işlemi”, “bölme işlemi”, “problem çözme” gibi anahtar
kelimeler yazılarak taramalar gerçekleştirilmiştir. İnceleme sonucunda tam
metnine ulaşılamayan, kullanım izni saklı olan ve nitel çalışmalar bu
araştırmaya dahil edilmemiş ve toplamda 46 çalışma araştırma kapsamına
alınmıştır. Araştırma kapsamına alınan çalışmalar betimsel analiz ile
çözümlenmiştir. Çözümlenen veriler her bir araştırma sorusuna karşılık gelecek
şekilde verilerin frekansları hesaplanarak tablolar ve grafikler ile sunularak
yorumlanmıştır.
ORTAÖĞRETİM ÖĞRETMENLERİNİN SINIF YÖNETİMİ BECERİLERİ
Authors: SARI Buşra , BAYRAKCI Mustafa
Published: February 2019

Bu araştırmada, ortaöğretim öğretmenlerinin
sınıf yönetimi becerilerine ilişkin algı düzeyleri ile bu algılarının cinsiyet,
yaş, branş, eğitim durumu ve hizmet yılı gibi değişkenler açısından incelenmesi
amaçlanmıştır. Araştırma tarama modelinde betimsel bir çalışmadır. Araştırmada ortaöğretim
öğretmenlerinin, sınıf yönetimi becerisine yönelik algılarını ölçmek üzere,
Delson (1982) tarafından geliştirilen, Yalçınkaya ve Tonbul (2002) tarafından
Türkçe’ye uyarlanan ve daha sonrasında Korkut 
(2009) tarafından güncellenen “Sınıf Yönetimi Beceri Ölçeği”
kullanılmıştır. Ölçeğin Türkçe formunun geneline ilişkin iç tutarlık katsayısı
α=0.86 iken Cronbach alfa güvenirlik katsayısı ise çalışmamızda .79 olarak
hesaplanmıştır. Elde edilen verilerin analizinde araştırmada ele alınan problem
durumlarına uygun olarak, betimsel istatistik tekniklerinden yararlanılmıştır. Verilerin
normal dağılım gösterip göstermediğini test etmek için Kolmogorov-Smirnow testi
yapılmış, verilerin normal dağılmadığı saptandığından non-parametrik testler
kullanılmıştır. Alt problemlere bağlı olarak verilerin çözümlenmesinde yüzde,
frekans, aritmetik ortalama, standart sapma, Spearman’s korelasyon testi, Mann
Whitney U Testi, ve Kruskal Wallis testleri uygulanmıştır. Araştırma sonuçlarına
göre; ortaöğretim öğretmenlerinin sınıf yönetimi beceri düzeyleri arasında,
kendilerini en iyi algıladıkları boyutun “sınıf içi etkileşim ve davranış
düzenlemeleri” olduğu tespit edilmiştir. Plan-program etkinlikleri ve fiziksel
düzen algılarının “iyi” düzeyde olduğu, öğretmen-öğrenci ilişkisinin
düzenlenmesi ve zaman kullanımı algılarının “çok iyi” düzeyde olduğu ve
öğretmenlerinin sınıf içi etkileşim ve davranış düzenlemeleri algılarının da
“çok iyi” düzeyde olduğu belirlenmiştir. Farklı branşlardaki öğretmenlerin
sınıf yönetimi beceri algı düzeylerine bakıldığında branşa göre farklılaştığı
ve meslek dersi öğretmenlerinin, sınıf yönetiminde plan-program etkinlikleri ve
fiziksel düzenlemeyi diğer branş öğretmenlerine göre daha verimli kullandıkları
tespit edilmiştir. Cinsiyet, yaş, eğitim durumu ve hizmet yılı değişkenleri
açısından ise sınıf yönetimi beceri algı düzeylerinin anlamlı olarak
farklılaşmadığı bulgusuna ulaşılmıştır.
SEKİZİNCİ SINIF ÖĞRENCİLERİNİN ÜST BİLİŞ FARKINDALIKLARININ BİLİMSEL SÜREÇ BECERİLERİ KAPSAMINDA İNCELENMESİ
Authors: ŞAHİN KÜRŞAD Merve
Published: February 2019

Öğrencilerin
öğrendikleri bilgileri hayata geçirmelerinde üst biliş farkındalığı ve bilimsel
süreç becerileri etkin birer faktördür. Üst biliş farkındalığı öğrenme ve
problem çözümünde etkin bir faktörken; bilimsel süreç becerileri öğrencilerin
aktif birer öğrenen olmalarında önemli bir faktördür. Bu doğrultuda çalışmanın
amacı sekizinci sınıf öğrencilerinin temel ve üst düzey bilimsel süreç
becerileri ile ilgili farklı güçlükteki soruları çözme süreçlerinde, üst biliş
farkındalıklarını tespit etmektir. Araştırma, sekizinci sınıf öğrencilerinin
bilimsel süreç becerilerine ilişkin üst biliş farkındalıklarını belirlemeye
yönelik, tarama modelinde bir araştırmadır. Araştırmanın çalışma grubunu Ankara
ve Kahramanmaraş’ta, üç devlet okulunda yer alan 122, sekizinci sınıf öğrencisi
oluşturmaktadır. Araştırma sonucuna göre öğrencilerin üst biliş
farkındalıklarının ortalamanın üzerinde olduğu, cinsiyet açısından ise kadınlar
ve erkeklerin üst biliş farkındalıkları arasında manidar farklılık olmadığı
görülmüştür. Öğrencilerin üst biliş farkındalıkları ortalamanın üzerinde
olmasına karşın, soru düzeyinde değerlendirmeler yapıldığında üst biliş
becerilerini etkin bir şekilde kullanamadıkları görülmüştür.
REFINEMENT OF THE INTERVAL WITH ABRUPT CATAGENETICAL ALTERATIONS OF THE SEDIMENTARY ROCKS IN SOME OIL AND GAS FIELDS IN DDB
Authors: Karpenko O. , Tunik O.
Published: February 2019

The article elaborates on the topic about abrupt catagenetical alterations in sedimentary rocks and postulates the topicality and problematics of the study during exploration of new and already existing oil and gas deposits. The goal of the research is the identification of compacted zone which was formed under secondary physical and chemical processes within 110–120 temperature interval (including possible paleotemperature effect).

To get the most qualitative/comprehensive results, integrated analysis of lithology, petrophysical characteristics of cored intervals in the slide sections and geological information has been done by the authors. Essential part of the article is devoted to the methodology, study description and interpretation of outcome results. Four gas condensate fields were chosen based on their similarity. They have similar tectonic, structural, generation and accumulation conditions and all of them are located in the axial and pre-axial zone of the central part of Dnieper-Donets basin. After well log data processing and precise microscopy study of slide sections, the authors concluded that 110–120 temperature surfaces, which frame compacted and altered zone (identified by the Ukrainian Research Institute of Gas), have to be shifted according to new research findings.

Practical value of this work is to identify compacted and decompacted zones at a great depth, which can be an indirect indicator of traps existence for hydrocarbons and possible manifestations of abnormal pressures.
PERSONAL POLICY: CONCEPT, TYPES, PECULIARITIES IN THE STATE BORDER SERVICE OF UKRAINE
Authors: Sharap S.
Published: February 2019

The purpose of the paper is to summarize scientific approaches to the definition of the content of the concept of "personnel policy"; determine the types of personnel policy and peculiarities of the state personnel policy and personnel policy in the State Border Guard Service of Ukraine. The analysis of problems of formation of the state personnel policy in law-enforcement bodies is made, since the security of the state depends on the quality of personnel potential. Novelty is the author's definition of the concept of "personnel policy in the State Border Guard Service" in the broad sense is a complex of legal, organizational and managerial decisions and socio-psychological measures aimed at the formation of the necessary human resources and ensuring their effective work on solving tasks entrusted to the SBGS. In the narrow sense, we propose to understand the personnel policy of the State Tax Administration in the form of a complex of adopted state decisions regarding the provision of SBGS by highly skilled specialists through the implementation of a set of scientifically based methods of work with personnel. The practical significance of the research results is that they can become the basis for further scientific and theoretical research of personnel policy.
Adverse Effects of Implants in Children and Adolescents: A Systematic Review
Authors: Kamatham Rekhalakshmi , Avisa Priyanka , Vinnakota Dileep Nag , Nuvvula Sivakumar
Published: February 2019

Objective: To determine the evidence on the adverse effects of placing dental implants in healthy growing children. Study design: A systematic search was conducted in five electronic databases: PubMed, Ovid, Cochrane, EBSCO host, ProQuest. Studies on implants placed in children below the age of 19 years, with loss of tooth either due to trauma or caries were included, whereas, studies on mini implants and implants placed due to congenital absence of teeth were excluded. The articles that fulfilled the inclusion criteria were analyzed based on the predetermined criteria of success. Results: A total of 8 publications fulfilled the inclusion criteria. All the included articles were case reports/series, involving a total of 16 implants (15 maxillary, one mandibular) in 11 adolescents (7 boys and 4 girls). The age of implant placement ranged between ten to 17 years with a mean age of 13.4 years and the follow up period, 4.5 months to 13 years. Pain, paresthesia, mobility or peri-implant radiolucency was not reported in any case report, indicating good integration. Radiographic crestal bone loss, probing depth and implant esthetics were not mentioned. The infraocclusion was not reported in 5 cases (age: 11–17 years, follow up: 4.5 months-two years), however, it was an adverse effect in 6 cases (age: ten-17 years, follow up: three-13 years). Conclusion: There is insufficient evidence to contradict the placement of dental implants in healthy growing children; the only reported adverse event is infraocclusion, the management of which too is discussed. However, as all the data is from case reports, the result should be interpreted with caution. Therefore, well-designed randomized controlled trials are needed to address this gap in the literature.
Comparative Study between Revitalization of Necrotic Immature Permanent Anterior Teeth with and without Platelet Rich Fibrin: A Randomized Controlled Trial
Authors: Ragab Rasha Adel , Lattif Amr Ezzat Abd El , Dokky Norhan Abd El Wahab El
Published: February 2019

Objectives: This study was conducted to evaluate the effect of platelet rich fibrin (PRF) during revitalization of necrotic immature permanent anterior teeth after 6 months and 1 year follow up period. The following treatment protocols; Group A: revitalization using blood clot scaffold only, and Group B: revitalization using blood clot and PRF. Study design: twenty-two patients (7–12 years old) suffering from immature necrotic permanent maxillary central incisors were randomly selected and randomly allocated into 2 groups. Clinical examinations were performed to detect any pain or swelling during the follow up period. Standardized radiographs were digitally evaluated for changes in root length, periapical radiolucency size, presence of apical or cervical calcific bridges. Results: After a follow-up period of 12 months, most of the cases showed radiographic evidence of periapical healing and showed calcific bridges either cervical and/or apical. No significant differences were shown between both groups. Conclusions: The revitalization procedures succeeded to show continued development of roots in teeth with necrotic pulps. The use of PRF was not essential for repair but it helped during the procedures.
“Knee-To-Knee” Position for Minor Procedures in Infants and Toddlers- Dentists Attitudes
Authors: Fux Noy , Shmueli A , Halperson E , Ram D , Moskovitz M
Published: February 2019

Objective: The objective of this survey was to assess attitudes of pediatric dentists in Israel toward using “knee-to-knee” positioning for dental examinations and for minor procedures in infants and toddlers. Study design: An anonymous questionnaire was distributed among specialists in pediatric dentistry. Eleven questions accessed demographic data, professional experience and attitudes toward the use of the “knee-to-knee” position. Results: Of 68 respondents, 66 (97%) reported using “knee-to-knee” positioning for dental checkups. In addition, 52 (76%) reported performing other procedures in the “knee-to-knee” position. Fluoride application and oral hygiene instructions are the most common procedures performed in the “knee-to-knee” position. Conclusions: “Knee-to-knee” positioning was found very convenient for dental examinations and other simple procedures in very young children.
Profile of Hospitalized Hypertensives with Preserved and Reduced Left Ventricular Ejection Fraction in Nigeria
Authors: Olusegun-Joseph Akinsanya Daniel , Karaye Kamilu M , Akintunde Adeseye A , Okunowo Bolanle O , Opadijo Oladimeji G , Habib Abdulrazak Garba , Balarabe Suleiman A
Published: February 2019

Introduction The impact of preserved and reduced left ventricular ejection fraction (LVEF) has been well studied in heart failure, but not in hypertension. We aimed to highlight the prevalence, clinical characteristics, comorbidities and outcomes of hospitalized hypertensives with preserved and reduced LVEF from three teaching hospitals in Nigeria. Methods: This is a retrospective study of hypertensives admitted in 2013 in three teaching hospitals in Lagos, Kano and Ogbomosho, who had echocardiography done while on admission. Medical records and echocardiography parameters of the patients were retrieved and analyzed. Results: 54 admitted hypertensive patients who had echocardiography were recruited, of which 30 (55.6%) had reduced left ventricular ejection fraction (RLVEF), defined as ejection fraction <50%; while 24 (44.4%) had preserved left ventricular ejection fraction (PLVEF). There were 37(61.5%) females and 17 (31.5%) males. Of the male patients 64.7% had RLVEF, while 35.3% had PLVEF. 19(51.4%) of females had RLVEF, while 48.6% had PLVEF. Mean age of patients with PLVEF was 58.83±12.09 vs 54.83± 18.78 of RLVEF; p-0.19. Commonest comorbidity was Heart failure (HF) followed by stroke (found among 59.3% and 27.8% of patients respectively). RLVEF was significantly commoner than PLVEF in HF patients (68.8% vs 31.3%; p- 0.019); no significant difference in stroke patients (46.7% vs 53.3%; p-0.44). Mortality occurred in 1 (1.85%) patient who had RLVEF.         Conclusion: RLVEF was more common than PLVEF among admitted hypertensive patients; they also have more comorbidities. In-hospital mortality is, however, very low in both groups.
Refractory Angina Secondary to Large Unligated Side Branch of Internal Mammary Artery
Authors: Oman Zachary , Gu Lucas , Khalid Nauman , Rafeedheen Rahil , Alkhawam Hassan , Nasir Ammar
Published: February 2019

Coronary artery disease (CAD) has become a common diagnosis. Managing the symptoms of CAD continues to be an ongoing dilemma requiring optimal medication management or potential revascularization with either percutaneous coronary interventions or coronary artery bypass grafting (CABG). We present a case of debilitating refractory angina in a patient with severe CAD after optimal medical therapy and CABG secondary to coronary steal phenomenon via the left internal mammary artery conduit supplying a large unligated side branch to the internal chest wall. While current data are inconclusive on this phenomenon, our patient had complete resolution of angina following coil embolization of unligated side branch of the internal mammary artery.