bluuebunny/crossref_metadata_2025 huggingface dataset:
THE DEVELOPMENT AND IMPLEMENTATION OF BIOLOGY TEACHING KITS USING SELF REGULATED LEARNING (SRL) STRATEGIES
Authors: Agusta Erie , . Djukri
Published: January 2017

Abstract: This study was aimed to develop Biology teaching kits using Self Regulated Learning (SRL)-based strategy in senior high schools that have been validated and tested. The study was carried out by using the development strategy of Borg and Gall. The subjects were the tenth grade students of SMA Negeri 1 Sentolo in the academic year of 2014/2015. The data for the validation process and the implementation of the teaching kits were collected through questionnaires and observations. The data of the validator assessment were analyzed using the categorization formula and Borich formula. The data on the try-out were analyzed using the paired sample test. The findings were in the form of teaching kits product for Bryophyta materials for the tenth grade students. The teaching kits had been validated theoretically by experts and teachers, the lesson plans had been validated and simulated, and the teaching kits and research instruments had been tried out in a small scale and implemented in the field. Keywords: teaching kits, Self Regulated Learning (SRL) strategies PENGEMBANGAN DAN IMPLEMENTASI PERANGKAT PEMBELAJARAN BIOLOGI DENGAN STRATEGI SELF REGULATED LEARNING (SRL) Abstrak: Tujuan penelitian pengembangan ini adalah dihasilkannya perangkat pembelajaran biologi berbasis Self Regulated Learningdi SMA yang telah tervalidasi dan teruji. Metode penelitian menggunakan strategi pengembangan Borg dan Gall. Subjek penelitian perangkat pembelajaran adalah siswa kelas X SMAN 1 Sentolo. Teknik pengumpulan data dalam proses validasi dan implementasi perangkat pembelajaran menggunakan angket dan observasi. Data penilaian validator dianalisis dengan rumus kategorisasi, sedang persamaan validator terhadap lembar validasi menggunakan rumus Borich. Data hasil uji coba dianalisis dengan paired sample test. Hasil penelitian berupa produk perangkat pembelajaran pada materi tumbuhan lumut di kelas X SMA. Perangkat pembelajaran tersebut telah divalidasi secara teoretis yang dilakukan oleh ahli dan guru, rencana pelaksanaan pembelajaran tertentu telah diuji secara terbatas keterbacaan dan disimulasikan, perangkat pembelajaran dan instrumen penelitian telah diuji coba terbatas dan lebih luas. Kata kunci: perangkat pembelajaran, strategi self regulated learning
THE IMPACT OF ORGANIZATIONAL CULTURE, ORGANIZATIONAL STRUCTURE, AND JOB-SATISFACTION ON HIGH SCHOOL TEACHERS’ JOB-PERFORMANCE
Authors: Hutabarat Wesly
Published: January 2017

Abstract: This study was a causal espouse fact study intended to find out and uncover direct and indirect effects of organizational culture, organizational structure, and job-satisfaction on teachers’ jobperformance. The sample consisting of 143 out of 645 public high school teachers were selected from 10 senior high schools by using the stratified random sampling technique. The teachers were those having teaching experience of at least 10 years and they had been certified as professional teachers and received certification fees continuously, except for guidance and counseling teachers. The findings showed that organizational culture, organizational structure and job-satisfaction had a positive impact on teachers’ job-performance. The direct and indirect effects of organizational culture on job-satisfaction were 21.20%, and 10.00% respectively. The direct and indirect effects of organizational culture on job-performance were 23.20% and 22.80% respectively. The direct effect of organizational structure on job-performance was 29.50%. Meanwhile, the indirect effect of organizational structure on job-performance was not significant. Finally, the direct effect of job-satisfaction on job-performance was 18.60%. Keywords: organizationa culture, organizational structure, job-performance, job-satisfaction DAMPAK BUDAYA ORGANISASI, STRUKTUR ORGANISASI DAN KEPUASAN KERJA TERHADAP KINERJA GURU SMA Abstrak: Penelitian ini merupakan penelitian kausal espouse facts yang dimaksudkan untuk meng- ungkap efek langsung dan tidak langsung budaya organisasi, struktur organisasi, dan kepuasan kerja terhadap kinerja. Sampel terdiri atas 143 dari 645 guru SMA yang diambil dari 10 SMA di Medan yang diambil dengan teknik stratified random sampling techmiques. Sampel guru paling tidak memiliki pengalaman mengajar 10 tahun dan telah disertifikasi sebagai guru profesional. Data dianalisis dengan teknik regresi dan sebelumnya telah diuji normalitas dan linearitas sebarannya. Temuan penelitian menunjukkan bahwa budaya organisasi, struktur organisasi dan kepuasan kerja memberi dampak positif terhadap kinerja guru SMA Kota Medan. Pengaruh langsung dan pengaruh tidak langsung budaya organisasi terhadap kepuasan kerja masing-masing 21,20%, dan 10,00%. Efek langsung dan tidak langsung budaya organisasi terhadap kinerja masing-masing 23,20% dan 22.80%. Efek langsung dari struktur organisasi terhadap kinerja ada 29,50%, sedangkan pengaruh tidak langsung dari struktur organisasi terhadap kinerja tidak fignificant. Akhirnya, efek langsung dari kepuasan kerja terhadap kinerja ada 18,60%. Kata Kunci: budaya organisasi, struktur organisasi, kepuasan kerja, kinerja
Orientasi Ideologi dan Pragmatisme Politik Model Pembentukan Koalisi dalam Pilkada Serentak di Jawa Tengah 2015
Authors: Makhasin Luthﬁ
Published: January 2017

This article explains the making of intra party coalition prior to and during simultaneous local direct election phase I in Central Java Province, held in 9 December 2015. Referring to and modifying from the current scholarly works on the coalition making and politico-ideological orientation of political party in Indonesia, it oﬀers four typologies of intra party coalition which are small ideological coalition, small pragmatic coalition, grand ideological coalition, and grand pragmatic coalition. The case of coalition making in the local direct election in 21 districts/municipalities in Central Java Province reveals that political party is a powerful and irreplaceable political player in democratic setting. As a formal political institution, it is and will remain considerably inﬂuential in nominating and endorsing candidates to run in the local direct election.
Qualidade da água e seu uso em pisciculturas
Authors: Leira Matheus , Hernandes Leira Matheus , Tavares da Cunha Luciane , Silvia Braz Mirian , Cicinato Vieira Melo Carlos , Aparecida Botelho Hortência , Silva Reghim Lucas
Published: January 2017

With the increase in the number of farms and consequently an increase in demand and use of water, fish farmers can or even are already becoming favorite targets of environmental organizations, proven by the imposition of rules, laws and requirements, both in the aspect of land use, use / reuse and disposal of water, choice, introduction and translocation of alien or native species, as the health aspects of the product. The development of aquaculture activity, along with the relatively recent awareness of environmental problems, fully justifies the attention it must offer the item "water quality", in particular to that arising from the action of intensive and semiintensivas creations. For water used in aquaculture, it is suggested that farmers should establish rules of conduct as their production, use and reuse your mood and worry in applying evaluation methods and simple recovery and objectives.
Desarrollo y validación de un método ambientalmente amigable para determinación de metales pesados en pastos
Authors: Chaparro G. Amanda Lucia , García F. Jhon Jairo , Cardona R. Yaneth , Bustamante C. Jhon Jairo , Peláez P. Manuel
Published: January 2017

Los metales pesados son peligrosos para los seres vivos y el medio ambiente, pues no pueden ser degradados y pueden llegar a los seres humanos a través la cadena trófica, por lo tanto, su determinación en diferentes matrices para consumo humano y animal, es de vital importancia. La metodología más utilizada para su extracción, es cenizas, la cual conlleva a tiempos largos de análisis y elevado consumo de energía, por esta razón, en el presente trabajo se desarrolló y validó un método ambientalmente amigable para la digestión y extracción de Cd+2 y Pb+2 en pastos, utilizando ultrasonido y espectroscopia de absorción atómica. Se evaluaron diferentes variables que afectan la digestión, como posición en el ultrasonido, peso de muestra, solvente, volumen del solvente, tiempo de sonicación y tipo de recipiente, en muestras de pastos dopadas con los metales, teniéndose como variable de respuesta, el porcentaje de recuperación. Las condiciones para extraer Cd+2 y Pb+2 en estas pasturas, fueron: 0,50g de tejido vegetal; 3,00mL de HCl:HNO3-3:1 expuestos 60min al ultrasonido, en tubos de vidrio cónicos. Este procedimiento mostró un comportamiento lineal en el rango de 0,50 - 8,00mg/Kg con R2 de 0,99 tanto para Cd como para Pb. Los límites de detección y cuantificación, fueron 0,25 y 0,43mg/Kg para Cd; 0,22 y 0,37mg/Kg para Pb. La metodología propuesta, se comparó con la técnica clásica y permitió determinar niveles trazas de estos metales tóxicos, en forraje proveniente del Magdalena medio, con porcentajes de recuperación de97,54 y 98,62%, respectivamente.
Caracterización molecular de cubios (Tropaeolum tuberosum Ruíz y Pavón) en el departamento de Boyacá
Authors: Morillo C. Ana Cruz Cruz , Morillo C. Yacenia , Tovar L. Yeily Paola
Published: January 2017

El cubio (Tropaeolum tuberosum Ruiz y Pavón) es un tubérculo básico en la dieta de las comunidades andinas. Es un cultivo rústico, con buena adaptación y usos medicinales. Los agricultores de las zonas altas de Boyacá conservan cultivares de tubérculos como cubios, rubas e ibias, que hacen parte de su patrimonio cultural, sin embargo, en los últimos años, este germoplasma está siendo amenazado por la erosión genética causada por factores ambientales y antrópicos. No existen estudios de caracterización molecular de este germoplasma en Boyacá, por lo cual esta investigación se orientó hacia la identificación de la diversidad de once genotipos de cubios, procedentes de los municipios de Ventaquemada y San Pedro de Iguaque, utilizando siete marcadores Microsatélites Amplificados al Azar (RAMs). El análisis de similitud diferenció a los cultivares en dos grandes grupos, de acuerdo con características relacionadas con el tubérculo (color y forma). Los valores de heterocigosidad estimada estuvieron comprendidos entre 0,25 y 0,42 para los cebadores CGA y AG, respectivamente, lo cual es bajo si se compara con los resultados obtenidos en otras especies tuberosas. El valor promedio de heterocigosidad de la población fue de 0,35 y junto con el análisis de varianza molecular y el Fst muestran la existencia de variabilidad genética en los cultivares evaluados, la cual debe tenerse en cuenta en los programas de conservación y mejoramiento genético de los tubérculos andinos.
El suelo y su relación con los servicios ecosistémicos y la seguridad alimentaria
Authors: Burbano-Orjuela Hernán
Published: January 2017

En este escrito, se reflexiona sobre el suelo y se destaca su importancia como recurso natural, por esta razón, se esboza su papel y los beneficios que de él se derivan para la sociedad y la naturaleza, a través de las funciones o servicios ecosistémicos que presta y de su participación para garantizar la seguridad alimentaria.
Factors affecting cattle producers’ willingness to adopt an Escherichia coli O157:H7 vaccine: a probit analysis
Authors: Ochieng’ Brian J. , Hobbs Jill E.
Published: January 2017

E. coli O157:H7 bacteria – a major cause of foodborne illness – occur naturally in the intestine of cattle but do not affect the health or productivity of the animal. A cattle vaccine that significantly reduces the risk of E. coli contamination was developed and commercialized in Canada and internationally, however, adoption by cattle producers remained extremely low. Utilizing data from a survey of cow-calf producers in western Canada, this paper examines the factors affecting cattle producers’ willingness to adopt the E. coli vaccine. Education, prior awareness of the vaccine, perception of who holds primary responsibility for E. coli risk reduction, and a producer’s external (versus internal) locus of control with respect to their ability to mitigate E. coli risks within the production environment are significant determinants of willingness to adopt. Adoption incentives are also evaluated, including policy interventions, market/supply chain incentives, production protocol, and producer reputation incentives. The analysis provides lessons for the development and commercialization of vaccines and other food safety intervention strategies that yield societal and supply chain benefits beyond the individual adopter.
Sobre a musicalidade do surdo: representação e estigma
Authors: Mathias Mercia Santana
Published: January 2017

Tendo como ponto de partida suas vivências no percurso profissional, a música como fonte de prazer e auto-realização, não tem ocupado um lugar de destaque nos programas de educação do surdo. E, partindo da constatação de que a música é parte integrante na vida do homem, que permeia toda a sua trajetória, a autora empenhou-se na tarefa de resgatá-la para o surdo, como sujeito de possibilidades musicais.
Crianças com doença renal crônica não estudam?
Authors: Friszman de Laplane Adriana Lia , Fiorezi Jajbhay Samira , Costa Frederico Jacqueline Caroline
Published: January 2017

A participação de um grupo de estudantes na enfermaria de diálise pediátrica de um serviço de saúde público estadual cujo objetivo era levar atividades lúdicas às crianças e adolescentes que realizam o procedimento revelou que a maioria das crianças com doença renal crônica que necessitam hemodiálise não frequenta a escola. O presente estudo propõe uma discussão sobre o direito à educação e sobre as condições do sistema de ensino para atender esses alunos.
Ensino de astronomia nos anos iniciais do ensino fundamental: um estudo sobre a aquisição de conceitos científicos para alunos com surdez
Authors: Di Roma Alessandra Ferreira , De Camargo Eder Pires
Published: January 2017

Esta pesquisa procurou investigar como ocorre o processo de escolarização de crianças com surdez nos anos iniciais do ensino fundamental. Objetivou-se investigar o acesso de alunos com perdas auditivas ao conhecimento científico em aulas de ciências naturais, articuladas aos princípios da astronomia. Como objetivos específicos, pretendeu-se analisar os processos de interação dos alunos surdos em sala de aula, sobretudo durante uma atividade pedagógica mediada pela pesquisadora e por dois professores da área de Física, participantes deste estudo. Além disso, buscou-se examinar as possibilidades e limitações para a construção do conceito fases da Lua para essas crianças. Os resultados da pesquisa apontam para a necessidade de alterações no atual paradigma da educação de surdos no Brasil. Destacamos a necessidade da implantação de práticas inclusivas que orientem uma educação bilíngue para os surdos. Independente da abordagem comunicativa utilizada pelos alunos com surdez seja ela oral ou gestual, o processo educativo deve garantir a essas crianças um ensino que contemple suas necessidades comunicativas e pedagógicas.Palavras-chave: Educação em ciências naturais. Educação de surdos. Ensino de astronomia. Formação de conceitos científicos.
A educação especial em Angola, Moçambique e Brasil: marcos históricos e a política de educação inclusiva das agências multilaterais
Authors: Chambal Luis  Alfredo , Rafante Heulalia Charalo , Selingardi Sérgio Cristóvão
Published: January 2017

Este artigo constitui uma análise dos marcos históricos da Educação Especial em Angola, Moçambique e Brasil, países que, não obstante distinções, possuem pontos em comum, como o passado colonial e a língua portuguesa como idioma oficial. Tem-se por objetivo ressaltar as singularidades históricas, políticas, econômicas e sociais de cada país e também a adoção da proposta de política para atendimento das pessoas com deficiência, da Declaração de Salamanca, de 1994, sob a égide da Conferência Mundial de Educação para Todos (1990) e promovida pelas agências multilaterais, como a Organização das Nações Unidas (ONU) e o Banco Mundial. Para maior compreensão da abordagem da Educação Especial nos três países, primeiramente é feita uma abordagem acerca do perfil histórico e social de cada um deles, destacando, especificamente, nos casos de Angola e Moçambique, uma realidade marcada pela pobreza, agravada por décadas de guerras civis. No que diz respeito à Educação Especial, os três países têm promovido políticas destinadas ao atendimento das crianças com necessidades educativas especiais, no entanto, seguindo os pressupostos dos organismos multilaterais que, na perspectiva de implementação de uma política inclusiva, não leva em consideração as distintas realidades entre os países.
Implicações da política de educação especial na construção da identidade docente
Authors: Santos Ivone Rodrigues , Silva Régis Henrique dos Reis
Published: January 2017

Resumo: Este texto tem como objetivo analisar as implicações da política de Educação Especial na constituição da identidade dos profissionais que atuam nesta modalidade de ensino. Para tanto, inicialmente, adotamos uma perspectiva crítica e dialética para compreender o processo de construção da identidade profissional docente, partindo do reconhecimento que, embora esteja em constante transformação e seja resultante de opções pessoais, fundamentalmente, está condicionada ao seu contexto histórico e social. Na sequência, situamos a finalidade da Educação Especial e o papel do professor que atua nesta modalidade de ensino e por fim, discutimos as atuais diretrizes da política de Educação Inclusiva (BRASIL, 2008), com destaque para a função do trabalho docente, apontando suas implicações na constituição da identidade dos profissionais que trabalham com alunos com deficiência. O texto conclui com a análise de que, diante do atual modelo de política de educação especial/educação inclusiva, na qual a educação é interpretada em termos de equalização social, cabe a política inclusiva mobilizar um conjunto de competências e habilidades aos profissionais que atuam neste segmento de modo idealista e discuPolítica de Educação Especial; Educação Inclusiva; Identidade docente.rsiva, contribuindo para um sentimento de desvalorização e de perda de identidade profissional.Palavras – chaves:
Como uma onda no mar: o jogo de forças entre regulação e emancipação no processo de construção do Plano Municipal de Educação em Sorocaba - São Paulo
Authors: Ferreira Dulcinéia De Fátima , Corrochano Maria Carla , Brito Ana Paula Souza , Bergamini Debora , Ginzel Flávia , José Caio Rennó
Published: January 2017

O presente artigo tem como objetivo central realizar uma discussão em torno do jogo de força entre a regulação e a emancipação no processo de construção do Plano Municipal de Educação na cidade de Sorocaba. Mobilizados por um cenário político no qual forças conservadoras colocam em risco a nossa jovem democracia, buscamos discutir, à luz da perspectiva freireana, as possibilidades que nascem a partir de movimentos de participação democrática, tendo como foco de nosso estudo a emergência do Fórum Popular de Educação de Sorocaba. Através da análise do processo antidemocrático conduzido pelo executivo municipal e pelo Conselho Municipal de Educação durante a elaboração do Plano, identificamos que mesmo em um momento político marcado pelo autoritarismo e pela falta de diálogo, surgem forças contra-hegemônicas capazes não somente de resistir, mas de criar novas formas de participação, como a experiência cristalizada na constituição do Fórum Popular de Educação.
The relationship between cross-sectional volatility, tracking-error and active positions: the case for South Africa
Authors: van Heerden Jakobus Daniël
Published: January 2017

International research suggests that tracking-error is influenced mainly by two components, namely market volatility and a portfolio manager’s active positions. Of these components, market volatility cannot be controlled by a manager while active positions can be adjusted to maintain a desired or mandated level of tracking-error. Focusing on the South African market, this study found that a strong positive relationship exists between cross sectional volatility and the level of tracking-error, and that active managers respond to changes in cross sectional volatility by adjusting their active positions. Based on these findings, this study firstly suggests that in order to outperform the market during times of low cross sectional volatility whilst maintaining desired tracking-error levels, stock picking skills becomes more important than ever. Secondly this study suggests that being able to identify those factors leading to a decrease in cross sectional volatility may enable investors to proactively increase their exposure to more passively managed funds in order to decrease management fees, thereby shifting their focus to alternative sources of alpha.
Agency vs. stewardship: performance, strategic flexibility and risk
Authors: Scordis Nicos , Barrese James
Published: January 2017

With taxpayers subsidizing the survival of publicly traded firms, questions of corporate governance, including the steward versus agency design of the firm, are now public policy issues. We use publicly traded insurance firms in the United States to study the value and risk relationship of agency versus stewardship firms. We find that stewardship and agency firms have different timing-related performance perspectives, have different degrees of strategic flexibility, and manage short term, or operational risk, and longer term risk differently. Our findings are consistent with the predictions of corporate governance theory.
Railway corporate governance in a free-functioning freight transport market: a South African position
Authors: Pienaar Wessel
Published: January 2017

Defining the economic role of rail freight transport in the national transport system of South Africa should be one of the basic ingredients of both an economically rational transport policy and the effective functioning of Transnet Freight Rail. In the interest of the national economy and in its own commercial interest, Transnet Freight Rail must only specialise in those fields where it can provide services tailored to the needs of customers at prices which are competitive and defensible in terms of economic principles. The institutional framework governing Transnet Freight Rail’s operations should create an environment conducive to the management of its operations as a fully competitive and profit-oriented business by: fostering a competitive freight transport market; providing any required socio-economic rail services under special agreements; Transnet’s board of directors defining management objectives and granting real management autonomy to Transnet Freight Rail; and Transnet Freight Rail defining clear and adequate performance indicators for itself. On the basis of these conditions, this paper outlines a governance structure under which Transnet Freight Rail as a public corporation can operate within a climate of free and effective competition.
Evidence on board size and its impact on CEO pay-performance sensitivity
Authors: Gao Ning , Small Kenneth
Published: January 2017

Recent literature asserts that board size is one of the crucial determinants in board monitoring. We conjecture optimal board size leads to effective and efficient decision-making. Using a U.S. firm sample from year 1996 to 2005, we examine whether board size has any impact on one of the main tasks of board monitoring – appropriate compensation for CEOs. Specifically, we investigate if board size is associated with CEOs’ pay-performance sensitivity. Agency theory suggests top managers’ compensation be structured in alignment with shareholder wealth. If a board is vigilant, managers who create (destroy) wealth should be rewarded (penalized). By using value added models, we construct a new sensitivity measure of CEO compensation to wealth added per share. Our findings indicate that there is a non-linear relationship between board size and CEO pay-performance sensitivity. As the board size becomes bigger, the pay-performance sensitivity follows a pattern that first increases and then decreases.
Corporate governance in the extractive industry – comparing Russian oil and gas companies and South African gold producers
Authors: Gstraunthaler Thomas , Ulyanova Maria
Published: January 2017

The influence of local culture on the way business is conducted has been recognized by a whole array of literature (e.g. Hofstede, 2001). Due to the focus on the financial industry throughout the last years, other vital sectors like the extractive industry have been neglected by academic research. This is even more surprising given the fact that the extractive industry is a particularly exciting study object. Its main capital is mining rights to explore and exploit the natural resources in a specific geographic area. Once a corporation decides to start exploitation, the venture is most likely to employ lots of workers out of the communities around the plant. This entangles the companies unavoidably closely with local and national politics. This paper inquires into the reporting of corporate governance in the extractive industry. For the purpose of this study, four Russian companies in the Oil and Gas sector and four South African gold producers were chosen. Besides obvious differences in the mining process, both sectors are vital to the economies of both nations and both are under strong influence of regulations and politics. Both groups report about their corporate governance on a very high level. The paper concludes that the notion of closed and opaque Russian companies does not hold any longer.
Bank governance and bank performance in Turkish banking industry: the analysis of static, selection and dynamic ownership effects
Authors: Taşkin F. Dilvin
Published: January 2017

Turkish banking has undergone a rapid consolidation process in the forms of domestic mergers and acquisitions and foreign acquisitions. This paper analyzes the effects of corporate governance on the performance of the Turkish commercial banks, using the data from 1995 to 2008. The paper considers the static, selection and dynamic effects of domestic, foreign and state-ownership on bank performance. The results show that state-owned banks have strong long-term performance, whereas the foreign banks have poor long-term performance. The selected banks for domestic M&As and for foreign acquisitions tend to perform better. The dynamic indicators show that the merged banks show inferior performance than their counterparts.
A review of Pb-Sb(As)-S, Cu(Ag)-Fe(Zn)-Sb(As)-S, Ag(Pb)-Bi(Sb)-S and Pb-Bi-S(Te) sulfosalt systems from the Boranja orefield, West Serbia
Authors: Radosavljevic Slobodan , Stojanovic Jovica , Pacevski Aleksandar , Radosavljevic-Mihajlovic Ana , Kasic Vladan
Published: January 2017

Recent mineralogical, chemical, physical, and crystallographic investigations
of the Boranja orefield showed very complex mineral associations and
assemblages where sulfosalts have significant role. The sulfosalts of the
Boranja orefield can be divided in four main groups: (i) Pb-Sb(As)-S system
with ?Fe and ?Cu; (ii) Cu(Ag)-Fe(Zn)-Sb(As)-S system; (iii) Ag(Pb)-Bi(Sb)-S;
(iv) and Pb-Bi-S(Te) system. Spatially, these sulfosalts are widely spread,
however, they are the most abundant in the following polymetallic deposits
and ore zones: Cu(Bi)-FeS Kram-Mlakva; Pb(Ag)-Zn-FeS2 Veliki Majdan
(Kolarica-Centralni revir-Kojici); Sb-Zn-Pb-As Rujevac; and Pb-Zn-FeS2-BaSO4
Bobija. The multi stage formation of minerals, from skarnhydrothermal to
complex hydrothermal with various stages and sub-stages has been determined.
All hydrothermal stages and sub-stages of various polymetallic deposits and
ore zones within the Boranja orefield are followed by a variety of
sulfosalts.
Chert blocks in the ophiolitic mélange of Zlatibor Mt. (SW Serbia): Age and geodynamic implications
Authors: Gerzina Natasa , Djeric Nevenka
Published: January 2017

Cherts are quite frequently occurring rocks in the Internal Dinarides, an
extremely complex area composed of several tectonostratigraphic units in
which oceanic sediments, ophiolites and partly metamorphosed parts of the
distal continental margin of Adria are preserved. Therefore, these cherts
differ in age and the original depositional environment in which they were
formed. Results of investigations carried out in the chert blocks found in
the melange in the vicinity of Jasenovo village on SE slopes of Zlatibor Mt.
are presented here. Radiolarian cherts from the studied localities represent
blocks in melange of the East-Bosnian-Durmitor Unit, exposed in a large
tectonic window below the Triassic carbonates of Drina-Ivanjica Unit.
Biostratigraphic data revealed Callovian-early Kimmeridgian ages of the
studied chert blocks, thus implying a Kimmeridgian or younger age of
obduction of the West Vardar ophiolites.
Semiology of pathological conditions in patients indicated for stereotactic biopsy
Authors: Golubovic Jagos , Vulekovic Petar , Djilvesi Djula , Karan Mladen , Jelaca Bojan , Cigic Tomislav
Published: January 2017

Introduction. Brain tumors produce symptoms and signs which are often
non-specific, and therefore they may occur for more than a few months prior
to diagnosis. The aim of this study was to determine the frequency of
referent signs and symptoms among patients referred for stereotactic brain
biopsy. Material and Methods. In this study, we retrospectively analyzed
medical history of 65 patients (67.7% males and 32.3% females) between the
ages of 16 and 81 years. The following symptoms and signs were included in
the analysis: organic brain syndrome, lateralization of crossed pyramidal
tract, cranial nerve dysfunction, speech disorders, cerebellar-vestibular
syndrome, nausea, vomiting, headache, the occurrence of at least one
epileptic seizure and respondents? physical weakness. Results. Physical
weakness was the most frequent symptom to be recognized (76.9%), whereas
pyramidal neurological lateralization was the most commonly recognized sign
(58.5%). There was a significant correlation between the course of disease
and physical weakness (rho = -0.34, p = 0.005), as well as the course of
disease and lateralization of the pyramidal tract (rho = 0.65, p = 0.00). No
significant correlation was found between other clinical signs and symptoms.
Conclusion. An accurate diagnosis and early recognition of signs and
symptoms may be useful in determining indications for stereotactic brain
biopsy.
Short vs long posterior fixation of thoracolumbar spine injuries
Authors: Stankovic Milan , Janjic Natasa , Lalic Ivica , Gvozdenovic Nemanja , Elez Igor , Vranjes Miodrag
Published: January 2017

Introduction. More than a quarter of total number of posterior fixations of
thoracolumbar spine is unsuccessful. Material and methods. The aim is to
compare short and long fixation of thoracolumbar spine injuries. During the
period of 2006 to 2015 we examined 99 patients at the Department of
Orthopedic Surgery and Traumatology of Clinical Center of Vojvodina. Short
fixation was performed in 63 cases and long fixation in 36 cases. All
patients underwent clinical, radiographic and neurological evaluation. Mean
age in the short fixation group was 47 (18-66) and in the long fixation
group it was 43 (17-70). Mean follow-up time was 4,5 years. Results.
Implants were extracted in 14 cases of short and in 4 cases of long
fixation. Collapse of anterior part of vertebral body developed in 28,45%
in the short fixation group and in 22,43% in the long fixation group whereas
angulation value was 10,2o and 12,3o respectively. Mean low back outcome
scale value was 61 points in the short fixation group and 50 in the long
fixation group. There were 22 patients with neurological deficit. Full
recovery was recorded in 8 patients (36,4%) of the short fixation group and
in 17 patients (22,7%) of the long fixation group. Complications developed
in 15 patients (23,8%) of the short fixation group and 11 (30,6%) of the
long fixation group. Conclusion. Short fixation is biomechanically weaker
but provides a better functional recovery than long fixation.
Arthroplasty of the hip joint
Authors: Savic Dragan , Lazetic Aleksandar , Bojat Veselin , Radic Srdjan , Gojkovic Zoran , Harhaji Vladimir
Published: January 2017

Total hip arthroplasty has completely revolutionized the nature in which the
arthritic hip is treated, and it is considered to be one of the most
successful orthopedic interventions of its generation. It has been practiced
at the Department of Orthopedic Surgery and Traumatology, Clinical Center
of Vojvodina, Novi Sad since 1970, and several thousand interventions like
this have been performed. A continuous increase in the number of such
interventions is noticed, this particularly applies to revision hip
arthroplasty procedures by implanting cementless, hybrid and cemented
prostheses. In routine clinical practice fresh frozen allotransplants from
bone bank are used to fill the bone defect, and 671 revision hip
interventions were performed in the last 15 years. A large number of
arthroplasty procedures and good postoperative outcome result from long
tradition in performing these interventions, and they are achieved by well
educated orthopedic surgeons, excellent anesthesiology care and very
professional staff assisting in treatment of these patients.
Morphometric characteristics of the patellar tendon
Authors: Vranjes Milodrag , Vukasinovic Ivan , Obradovic Mirko , Bjelobrk Mile , Budinski Zlatko , Milankov Miroslav
Published: January 2017

Introduction. The most common injuries of the knee joint are injuries of the
anterior cruciate ligament. The golden standard in reconstruction of this
ligament is graft bone - patellar tendon - bone. Knowing the morphometric
characteristics of these ligaments is crucial for anterior cruciate ligament
reconstruction. This study was aimed at determining morphometric
characteristics of the patellar tendon in vivo, measured intraoperatively,
and at defining the correlation between the obtained values and body weight,
height, gender and sport activity among different groups of athletes.
Material and Methods. This study included 184 patients suffering from
anterior cruciate ligament injuries who were admitted to the Clinical Center
of Vojvodina, Department of Orthopedics and Traumatology. Results. The
patellar tendon width ranged from 28 mm to 43 mm, averaging at 32.02 mm. The
length of the patellar tendon ranged from 35 mm to 62 mm, averaging at 46.34
mm. The thickness of the patellar tendon ranged from 3 mm to 6 mm, averaging
at 3.78 mm. The measured results were positively and statistically relevant
with the body mass, height and body mass index. Discussion and Conclusion.
The patellar tendon was thicker, longer and wider in persons with higher
values of body weight and height. Men have statistically longer, thicker and
wider patellar tendon than women. There was no statistically significant
difference between morphometric characteristics of the patellar tendon
among professional athletes and recreational athletes, neither was there one
in the obtained geometric data of the patellar tendon among tested groups of
professional athletes.
In step with contemporary trends-stem-celltherapy as a key driver of regenerative orthopedics at the Clinical Center of Vojvodina - preliminary data for the treatment of knee osteoarthritis and osteochondral lesions
Authors: Dulic Oliver , Lalic Ivica , Janjic Natasa , Rasovic Predrag , Gavrilovic Gordan , Abazovic Dzihan
Published: January 2017

Introduction. In the treatment of various orthopedic conditions,
regenerativetherapies, including platelet rich plasma and autologous
stem-cell therapy, have recently been advancing. Knee cartilage lesions are
a debilitating disease resulting in fibrillation and subsequent degradation
which can also involve the subchondral bone and lead to the development of
osteoarthritis. Bone marrow mesenchymal stem cells are a heterogeneous
mixture of cells involved in cartilage formation and regenerative repair,
whereas other mesenchymal stem cells have the capacity to play a role as
immunomodulatory and trophic factors. Nowadays, stem-cell therapy is widely
used for the treatment of knee osteoarthritis and cartilage lesions. The
purpose of this study was to evaluate preliminary clinical data of treatment
of knee osteoarthritis with stem cell injection and treatment of
osteochondral lesions with stem-cell scaffold. Material and Methods. Stem
cells were obtained by concentrating the content taken with aspiration
needles from the bone marrow my means of Arthrex Angel Bone Marrow Aspirate
Concentrate centrifuge. Results. The study sample consisted of 39 patients
who were included in knee osteoarthritis treatment. Surgical implantation
was performed in 7 patients from the osteochondral group. In the first
group, an average Visual Analogue Scale pain felt before intervention
decreased statistically significantly three days after the intervention
(from 7.27 to 2.12, p?0.05) and remained 1.2 until the check-up after 3
months. The same results were achieved in the average Western Ontario and
McMaster Universities Arthritis Index score (prior to intervention = 51.5;
after 1 month = 72 and after 3 months = 76). For the second group, an average
preintervention Visual Analogue Scale pain decreased statistically
significantly three days after intervention (from 8.1 to 2.7) and remained
1.2 until the check-up after months. The same results were achieved on the
Knee injury and Osteoarthritis Outcome Score pain (p?0.05). Both procedures
were proved as safe providing pain relief and function improvement of
treated knee joints.
Biochemical liver function test parameter levels in relation to treatment response in liver metastatic colorectal patients treated with FOLFOX4 with or without bevacizumab
Authors: Denic Kristina , Tarabar Dino , Obradovic Slobodan , Ristic Marija , Spasic Jelena , Radosavljevic Davorin , Ugresic Nenad
Published: January 2017

Introduction. Combined use of bevacizumab and conventional anticancer drugs
leads to a significant improvement of treatment response in patients with
metastatic colorectal carcinoma (CRC). Conventional treatment protocols exert
undesired effects on the liver tissue. Hepatotoxic effects are manifested as
a disturbance of liver function test parameters. The relation between
clinical outcome and disorder of biochemical parameters has not been
completely evaluated. Objective. The objective of our study was to examine
whether clinical outcome in patients with liver metastatic CRC correlates
with the level of liver function test parameters. Methods. The study included
96 patients with untreated liver metastatic CRC who received FOLFOX4 protocol
with or without bevacizumab. Biochemical liver parameters were performed
before and after the treatment completion. Treatment response was evaluated
as disease regression, stable disease, and disease progression. The patients
were divided into three groups according to the accomplished treatment
response. Results. In the group of patients with disease regression the
post-treatment levels of aspartate aminotransferase, alanine
aminotransferase, and bilirubin were statistically significantly increased.
In contrast to this, gamma-glutamyltransferase and protein post-treatment
values were significantly lower in relation to initial values. In patients
with stable disease, difference was found only in the level of proteins being
lower after the treatment. In patients with disease progression, values of
aspartate aminotransferase and bilirubin were significantly increased after
completed treatment. Conclusion. Treatment responses are not completely
associated with the level of liver function test parameters. The only
parameter which correlated with treatment response is
gamma-glutamyltransferase. Its decrease is accompanied with disease
regression.
Synchronous advanced pulmonary tuberculosis and acute virus myocarditis mimicked wegener granulomatosis in a 26-year-old man: A case report
Authors: Pesut Dragica , Petrovic Milan , Vasic Nada , Stevic Ruza
Published: January 2017

Introduction. Tuberculosis patients are rarely asymptomatic. Acute virus
myocarditis presents with a wide range of symptoms, from mild dyspnea or
chest pain to cardiogenic shock and death. Case Outline. A 26-year-old
Caucasian man non-smoker presented with one-week history of lower
extremities? swelling. The patient?s medical history also revealed a two-day
episode of subfebrile temperature with scanty hemoptysis three weeks prior to
admission. The episode had not provoked him to seek medical care. Physical
examination revealed generalized oedema, and laboratory analysis showed signs
of acute renal insufficiency. Enlarged heart and hilar shadows, bilateral
massive cavitary pulmonary opacities and pleural effusion were found at chest
radiography. Sputum smears were Mycobacteria negative on direct microscopy.
Electrocardiogram changes and echocardiography were suggestive of acute
myocarditis with dilated cardiomyopathy. IgM titer to adenovirus was
positive. Under diuretics, angiotensin-converting-enzyme inhibitor,
beta-blocker, antibiotics and bed rest, fast heart compensation and renal
function repair were achieved. Radiographic pulmonary changes promptly
regressed except for a cavity in the right upper lobe. Bronchial aspirate
from the affected lobe was Mycobacteria positive on direct microscopy and
culture positive for Mycobacterium tuberculosis. Standard anti-tuberculosis
drug regimen led to recovery. Conclusion. In the unusual common existence of
two diseases whose presentation initially mimicked Wegener?s granulomatosis,
acute dilated cardiomyopathy contributed to pulmonary tuberculosis detection.
To prevent diagnostic delay in tuberculosis, further efforts in population
education are necessary together with continual medical education.
Fondaparinux monitoring in a patient with heparin-induced thrombocytopenia on hemodialysis
Authors: Kusic Jovana , Kulic Andrijana , Djurkovic Veselinka , Markovic Rodoljub , Milacic Velja , Suric-Lambic Ljiljana , Pekovic Gordana
Published: January 2017

Introduction. Heparin-induced thrombocytopenia associated to hemodialysis is
rare. In case when citrate dialysis and/or non-heparin anticoagulants are not
available, only possible medication to use for anticoagulation during
hemodialysis is fondaparinux. However, laboratory monitoring of fondaparinux
based on anti-Xa activity in dialysis patients has not been sufficiently
documented yet. Case Outline. We created a local anti-factor Xa assay for
measuring fondaparinux plasma concentration and efficacy in a patient with
heparin-induced thrombocytopenia during hemodialysis. Fondaparinux given
subcutaneously increases risk of adverse events due to its extended release
and prolonged maintenance of toxic levels. When used intravenously
fondaparinux remains safe, with reached steady-state level within dialysis
and low risk of toxicity afterwards. Conclusion. Fondaparinux may be used as
an alternative anticoagulant medication during hemodialysis in patients who
develop heparin-induced thrombocytopenia. Adequate dose must be adjusted to
patients? dry weight (0.03 mg/kg intravenously) and fondaparinux
anti-coagulation monitoring must be provided.
Hepatocellular carcinoma and impact of aflatoxin difuranocoumarin derivative system: A case report
Authors: Ilic Miroslav , Putnik Srdjan , Prvulovic-Bunovic Natasa , Vojinovic-Miloradov Mirjana , Mihajlovic Ivana , Turk-Sekulic Maja , Radonic Jelena
Published: January 2017

Introduction. Hepatocellular carcinoma (HCC) is the most frequent type of
liver malignancy. As a carcinogen, aflatoxin B1 (AFB1) causes HCC by inducing
deoxyribonucleic acid adducts that lead to genetic changes in liver cells and
may be the cause of HCC in up to 30% of cases. The incidence of HCC has been
on the rise and is an issue in the countries of the Western Balkans. Case
Outline. This paper presents a case of a 37-year-old woman who was diagnosed
with HCC, without hepatitis B, hepatitis C, or liver cirrhosis. The patient
consumed milk and dairy products in quantities of over two liters per day
over the course of 20 years, which indicates the impact of aflatoxin in milk
on HCC. A positive signal for the presence of AFB1 was detected by ELISA
(enzyme-linked immunosorbent assay) in-house using immunoperoxidase screening
test. Conclusion. As carcinogenic difuranocoumarin derivative, aflatoxin B1
is the most likely cause of malignant transformation of hepatocytes, which
resulted in hepatocellular carcinoma in this patient.
Contextualising bow fibulae with Boeotian shield plates: Cultural transfer processes during early iron age in the Central Balkan area
Authors: Heilmann Daniela
Published: January 2017

Despite the fact that double-looped fibulae with catch-plates in the form of
a Boeotian shield have been frequently discussed, it is worthwhile examining
the type again from a supra-regional perspective. The following paper,
therefore, has two aims. First, the typo-chronological development of the
fibulae with catch-plates in the form of a Boeotian shield within the Central
Balkan area is considered. The second part of the paper focuses on the
processes of the spread of the fibula type. The question is raised as to what
extent local elites - integrated in supra-regional networks - could have
functioned as transmitters and agents in the processes of cultural transfer.
A Roman funerary inscription from Smederevo
Authors: Kovács Péter , Prohászka Péter
Published: January 2017

In this short paper the authors publish a Hungarian wartime postcard from
Smederevo (Serbia), from 1916. It is reported that a Roman gravestone was
found on the banks of the Danube and the text of the lost stone monument was
also added. The authors intend to interpret the funerary text that was
incorrectly transcribed.
Health status of children in ancient Sirmium
Authors: Miladinovic-Radmilovic Natasa , Dragana Vulovic , Djukic Ksenija
Published: January 2017

This paper presents diseases which directly leave traces on osteological
material (enamel hypoplasia, caries, traumatic conditions, haematological
disorders, metabolic diseases and middle ear inflammation) and diseases that
leave no visible marks on bones, and may indeed be the direct cause of death
of children in ancient Sirmium. In paleodemographic research, child mortality
rate is an important element of a population?s progress. Child mortality is
considered an adequate criterion for the social and sanitation conditions of
a community and a sensitive indicator of inadequate nutrition.
An AMS dated late Bronze Age grave from the mound necropolis at Paulje
Authors: Gligoric Rada , Filipovic Vojislav , Bulatovic Aleksandar
Published: January 2017

The subject of the paper is a closed entity - an incineration grave from
northwest Serbia, dated to the developed Bronze Age, with an absolute date
obtained by AMS (Accelerator mass spectrometry). The sample was taken from
the wooden support on which the urn with the bones of the deceased and bronze
jewellery was placed. The date obtained corresponds to the 14th century B.C.
and confirms earlier proposed suppositions concerning the chronological
determination of the necropolises from the territory of Jadar, Podgorina and
Lower Podrinje.
New evidence for prehistoric copper metallurgy in the vicinity of Bor
Authors: Kapuran Aleksandar , Zivkovic Dragana , Strbac Nada
Published: January 2017

The last three years of archaeological investigations at the site Ru`ana in
Banjsko Polje, in the immediate vicinity of Bor, have provided new evidence
regarding the role of non-ferrous metallurgy in the economy of the
prehistoric communities of north-eastern Serbia. The remains of metallurgical
furnaces and a large amount of metallic slags at two neighbouring sites in
the mentioned settlement reveal that locations with many installations for
the thermal processing of copper ore existed in the Bronze Age. We believe,
judging by the finds of material culture, that metallurgical activities in
this area also continued into the Iron Age and, possibly, into the 4th
century AD.