bluuebunny/crossref_metadata_2025 huggingface dataset:
Motion of Magnetic Flux Quanta in Type-II Superconductors – Some Open Questions
Authors: Huebener R. P.
Published: July 2015

The motion of the magnetic flux quanta in the
mixed state of a type-II superconductor, due to the Lorentz
force of an electric transport current, represents the key
mechanism for generating resistive losses. Whereas the
most common result is Joule heating of the superconductor,
also purely electronic non-equilibrium effects can
play a dominant role in the case of effective cooling of
the sample. The latter situation can be realized by means
of very thin superconducting films (having a large surface/
volume ratio). In this paper we discuss experiments
with Nd2−xCexCuOy (NCCO) films performed some time
ago, yielding evidence for electronic non-equilibrium effects
due to the energy dependence of the quasi-particle
density of states in the mixed state of the films. The films
were imbedded within super-fluid helium for cooling. The
recent advances in the fabrication of epitaxial ultra-thin
superconducting films promise to contribute to further
clarification of these electronic non-equilibrium effects.
A review of CO2 capture by absorption in ionic liquid-based solvents
Authors: Babamohammadi Shervan , Shamiri Ahmad , Aroua Mohamed Kheireddine
Published: July 2015

Concern has increased about climate change caused by carbon dioxide (CO
A cyclic mixed-valence MoVI/MoV polyoxothiomolybdate cluster anion stabilized by a [(μ-I){Ag(PPh3)3}2]+ complex cation. Preparation and structure of [(μ-I){Ag(PPh3)3}2]2 [Mo8O8(μ-OH)2(μ-OEt)6(μ-S)8(μ3-O)4{Mo(DMF)2}] · 2EtOH
Authors: Wei Wei , Xin Zhifeng , Shi Hua-Tian , Jia Ai-Quan , Zhang Qian-Feng
Published: July 2015

Treatment of (NMe4)2[Mo2O2S6] with Ag(PPh3)3I in the presence of NaOEt in DMF/EtOH resulted in the formation of a novel MoVI/MoV polyoxothiomolybdate cluster compound [(μ-I){Ag(PPh3)3}2]2[Mo8O8(μ-OH)2 (μ-OEt)6(μ-S)8(μ3-O)4{Mo(DMF)2}] · 2EtOH. The cyclic cluster polyanion consists of an octamer {Mo8O8(μ-OH)2(μ-OEt)6 (μ-S)8(μ3-O)4} that encapsulates a central {MoVI(DMF)2 (μ3-O)4} octahedron.
Estrogen receptor antagonism uncovers gender-dimorphic suppression of whole body fat oxidation in humans: differential effects of tamoxifen on the GH and gonadal axes
Authors: Birzniece Vita , Ho Ken K Y
Published: July 2015

Context

Tamoxifen, a selective estrogen receptor modulator, suppresses GH secretion in women but not in men. It increases testosterone levels in men. As GH and testosterone stimulate fat metabolism, the metabolic consequences of tamoxifen may be greater in women than in men.

Objective

To determine whether tamoxifen suppresses fat oxidation (Fox) to a greater degree in women than in men.

Design

An open-label study of ten healthy postmenopausal women and ten healthy men receiving 2-week treatment with tamoxifen (20 mg/day).

Endpoint measures

GH response to arginine stimulation, serum levels of IGF1, testosterone and LH (men only), sex hormone binding globulin (SHBG) and whole body basal and postprandial Fox.

Results

In women, tamoxifen significantly reduced the mean GH response to arginine stimulation (Δ −87%,P<0.05) and circulating IGF1 levels (Δ −23.5±5.4%,P<0.01). Tamoxifen reduced postprandial Fox in women (Δ −34.6±10.3%;P<0.05). In men, tamoxifen did not affect the GH response to arginine stimulation but significantly reduced mean IGF1 levels (Δ −24.8±6.1%,P<0.01). Tamoxifen increased mean testosterone levels (Δ 52±14.2%;P<0.01). Fox was not significantly affected by tamoxifen in men.

Conclusion

Tamoxifen attenuated the GH response to stimulation and reduced postprandial Fox in women but not in men. We conclude that at a therapeutic dose, the suppressive effect of tamoxifen on fat metabolism is gender-dependent. Higher testosterone levels may mitigate the suppression of GH secretion and Fox during tamoxifen treatment in men.
Follicular hyperandrogenism downregulates aromatase in luteinized granulosa cells in polycystic ovary syndrome women
Authors: Yang Fang , Ruan Ye-Chun , Yang Yun-jie , Wang Kai , Liang Shan-shan , Han Yi-bin , Teng Xiao-Ming , Yang Jian-Zhi
Published: July 2015

Women with polycystic ovary syndrome (PCOS) undergoing IVF–embryo transfer based-assisted reproductive technology (ART) treatment show variable ovarian responses to exogenous FSH administration. For better understanding and control of PCOS ovarian responses in ART, the present study was carried out to compare the follicular hormones and the expression of granulosa cell genes between PCOS and non-PCOS women during ART treatment as well as their IVF outcomes. Overall, 138 PCOS and 78 non-PCOS women were recruited for the present study. Follicular fluid collected from PCOS women showed high levels of testosterone. The expression of aromatase was found significantly reduced in luteinized granulosa cells from PCOS women. In cultured luteinized granulosa cells isolated from non-PCOS women, their exposure to testosterone at a level that was observed in PCOS follicles could decrease both mRNA and protein levels of aromatase in vitro. The inhibitory effect of testosterone was abolished by androgen receptor antagonist, flutamide. These results suggest that the hyperandrogenic follicular environment may be a key hazardous factor leading to the down-regulation of aromatase in PCOS.
Assessment of Municipal Solid Waste Clay Liner System Using Consolidation Test
Authors: G. Venkatesan  , G. Swaminathan
Published: July 2015

The present study has been carried out to provide landfill clay liner soil with admixture microsilica in different proportions. The geoenvironmental and physico-chemical characteristics were carried out to characterize the clay mixed with definite portion of microsilica in mass ratio. An experimental investigation was performed to determine the effect of clay and microsilica consolidation of leachate. The microsilica- clay composites were mixed in ratios of 0:100, 1:10 and 1:20 and experiment carried out with leachate as the permeation liquid. The quantitative reductions in coefficient of permeability increase in the effective stress for the all ratios. The chemical reaction of water and soil are lower than that in the leachate. In real field the leachate as permeation liquid after construction of liners, is retained by adding microsilica in clay liner system. 1:10 ratio of microsilica-clay composites was found to be more suitable municipal solid waste leachate as permeating liquid.
The Regeneration of Ammonia Solution by Calcium Hydroxide for Carbon Dioxide Absorption from the Flue Gas
Authors: Hsin Ta Hsueh  , Tsung Wen Chien  , Tzu Hsing Ko  , Teng Te Huang  , Hsin Chu
Published: July 2015

The tests of this study were conducted by the semi-continuous flow experiments to absorb the carbon dioxide (CO2) gas in a bench-scale spraying column reactor. The absorption capacity and the regeneration efficiency of the absorbed ammonia (NH3) solution were determined. In this study, the maximum regeneration efficiency is 68.4% as the concentration of NH3 solution is 1% and the ratio of calcium hydroxide (Ca(OH)2) and CO2 is 1 as well. Furthermore, the absorption capacity of the NH3 solution decreases from 1.67 to 0.27 kg-CO2/kg-NH3 after regenerating four times due to the 30-38% loss each time. Regarding the regeneration kinetics between absorbed products and Ca(OH)2, the comparative degree of covered Ca(OH)2 during the reaction was recognized after fitting by a surface coverage model. Finally, the ammonium bicarbonate (NH4HCO3) reduced by Ca(OH)2 to calcium carbonate (CaCO3) solid and NH3 solution in the regeneration reactions was observed by scanning electron microscope (SEM), Energy-dispersive X-ray spectroscopy (EDS) pictures and X-Ray Diffraction (XRD) analyses. Although the NH3 solution can be regenerated by Ca(OH)2 effectively in this study, the overall benefit of this process should be estimated further in the energy aspect.
In vitro and In vivo Degradation Evaluation of Mg-Based Alloys for Biomedical Applications
Authors: Sau Shun Wong  , Luen Chow Chan  , Chi Ping Lai  , Wing Yuk Ip  , Lok Hang Chau
Published: July 2015

Biodegradable metals have attracted interest for implant applications because of the potential to eliminate secondary surgeries. Magnesium-based (Mg-based) alloys are potential candidates. The purpose of this study was to evaluate the in vitro and in vivo degradation performances of two custom-made magnesium-based alloys and to determine whether they are sustainable for further investigation. The performances of Magnesium-Zinc-Manganese (Mg-Zn-Mn) alloys at 5% and 1% zinc levels were compared using a mechanical test, hydrogen evolution test, cell viability (MTT) test, and a short term mice subcutaneous implantation. The results showed that the corrosion resistance of the Mg was improved by alloying. While Mg-5Zn-1Mn was more corrodible compared with Mg-1Zn-1Mn, neither of the alloys presented any adverse effects preliminarily and both were suitable for long-term testing for biomedical applications.
Shock-Induced C-N-S Tridoped TiO2 with Improved Photocatalytic Activity Under Visible Light
Authors: Chunxiao Xu  , Liu Jianjun , Cui Naifu , Chen Pengwan
Published: July 2015

Using metatitanic acid (H2TiO3) and thiourea (CN2H4S) as titanium precursor and dopant sourcerespectively, a visible-light responsiblenon-metalC-N-S tridoped TiO2 photocatalyst is prepared by shock loading. X-ray powderdiffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and UV-visiblediffusereflectancespectroscopy (UV-Vis DRS)are employed to characterize thecrystalline structure,morphology,chemical composition and optical property of recovered samples.The results indicate the metatitanic acid transformsto pure anatase phase by shock wave and that theaverage size of particles is3-5 nm.The as-synthesized TiO2 nano-particles are well dispersedand possess large surface area (309.02m2/g), and the edge adsorptionwavelength of the samples exhibitsslight red shifts with corresponding energy gap reduced to 3.16 eV.Carbon forms carbonate on the surface of TiO2,N may coexist inthe forms of substituted N (N-O-Ti) and interstitial N (O-Ti-N) in TiO2, and S6+is incorporated into the lattice of TiO2through substituting titanium atoms.The photocatalyticactivities of the as-synthesized samples are evaluated for the degradation of Rhodamine B under simulatedsunlight irradiation.Results revealthat these C-N-StridopedTiO2exhibit higherphotocatalyticdegradation activities than that of undoped TiO2samples and achieve an 83% removal rate for RB dye under the visible light irradiation for 70min with the thiourea-to-metatitanic acid mass of 2:1 and flyervelocity 2.52 km·s-1,whichis mainly attributed to the synergistic effects of well-formed anatase phase, high specific surface area and band gap narrowing resulting from C-N-S tridoping.
RESISTANT HYPERTENSION IN TYPE 2 DIABETES: PREVALENCE AND PATIENT CHARACTERISTICS
Authors: Ciobanu Dana Mihaela , Kilfiger Hélène , Apan Bogdan , Roman Gabriela , Veresiu Ioan Andrei
Published: July 2015

Background and aims. Resistant hypertension is defined as failure to achieve blood pressure lower than 140/90 mmHg when using three antihypertensive agents or controlled blood pressure with four or more drugs. We aimed at assessing the prevalence of resistant hypertension and to describe a type 2 diabetes population with resistant hypertension.Methods. The retrospective observational study included (n=73) type 2 diabetes subjects with resistant hypertension selected from (n=728) subjects admitted to the Centre of Diabetes, Cluj, Romania.  Results. The subjects (70% women) had a mean age of 65.0±8.9 yrs. and diabetes duration 11(6-19) yrs. Prevalence of resistant hypertension was 10%. Chronic diabetes complications and cardiovascular disease were present in 77% and 56% of subjects respectively. On admission, antihypertensive drugs used were: angiotensin-converting enzyme inhibitors or angiotensin II receptors blockers 93%, β-blockers 88%, diuretics 78%, calcium channels blockers 59%, adrenergic α-antagonists 11%. Systolic and diastolic blood pressure were lower in the last compared to first admission day. Diuretics and calcium channels blockers were the most frequently newly added antihypertensive agents.Conclusion. Although the prevalence of resistant hypertension in type 2 diabetes did not differ from the general population, we observed that these patients had increased frequency of chronic diabetic complications. Angiotensin-converting enzyme inhibitors or angiotensin II receptors and β-blockers were the most used antihypertensive drugs, while the most frequently newly prescribed drugs were diuretics and calcium channel blockers.
In vitro modulation of estrogen receptor activity by norfluoxetine
Authors: Lupu Diana , Pop Anca , Cherfan Julien , Kiss Béla , Loghin Felicia
Published: July 2015

Background & Aims: Selective serotonin reuptake inhibitors (SSRIs) are antidepressants increasingly prescribed for pregnancy and postpartum depression. However, these compounds can cross the placenta and also pass into breast milk, thus reaching the fetus and infant during critical developmental stages, potentially causing adverse effects. Fluoxetine, a widely used SSRI, has been shown to affect (neuro)endocrine signaling in various organisms, including humans. This compound can also interact with estrogen receptors in vitro and cause an estrogen-dependent uterotrophic response in rodents. Consequently, the aim of the present study was to assess if the active metabolite of fluoxetine, namely norfluoxetine, shares the same capacity for estrogen receptor interaction.Materials and methods: The in vitro (anti)estrogenic activity of norfluoxetine was assessed using a firefly luciferase reporter construct in the T47D-Kbluc breast cancer cell line. These cells express nuclear estrogen receptors (ERs) that can activate the transcription of the luciferase reporter gene upon binding of ER agonists. Light emission was monitored in case of cells exposed to norfluoxetine or mixtures of norfluoxetine-estradiol. Cell viability was assessed using a resazurin-based assay.Results: During individual testing, NFLX was able to induce a significant increase in luciferase activity compared to control, but only at the highest concentration tested (10 µM). In binary mixtures with estradiol (30pM constant concentration) a significant increase in luminescence was observed at low submicromolar norfluoxetine concentrations compared to estradiol alone.Conclusion: Norfluoxetine can induce estrogenic effects in vitro and can potentiate the activity of estradiol. However, further studies are needed to clarify if these observed estrogenic effects may have detrimental consequences for human exposure.
Stem Cells - biological update and cell therapy progress
Authors: Girlovanu Mihai , Susman Sergiu , Soritau Olga , Rus-Ciuca Dan , Melincovici Carmen , Constantin Anne-Marie , Mihu Carmen Mihaela
Published: July 2015

In recent years, the advances in stem cell research have suggested that the human body may have a higher plasticity than it was originally expected.Until now, four categories of stem cells were isolated and cultured in vivo: embryonic stem cells, fetal stem cells, adult stem cells and induced pluripotent stem cells (hiPSCs).Although multiple studies were published, several issues concerning the stem cells are still debated, such as: the molecular mechanisms of differentiation, the methods to prevent teratoma formation or the ethical and religious issues regarding especially the embryonic stem cell research.The direct differentiation of stem cells into specialized cells: cardiac myocytes, neural cells, pancreatic islets cells, may represent an option in treating incurable diseases such as: neurodegenerative diseases, type I diabetes, hematologic or cardiac diseases.Nevertheless, stem cell-based therapies, based on stem cell transplantation, remain mainly at the experimental stages and their major limitation is the development of teratoma and cancer after transplantation. The induced pluripotent stem cells (hiPSCs) represent a prime candidate for future cell therapy research because of their significant self-renewal and differentiation potential and the lack of ethical issues.This article presents an overview of the biological advances in the study of stem cells and the current progress made in the field of regenerative medicine.
IRON, INFLAMMATION AND INVASION OF CANCER CELLS
Authors: Fischer-Fodor Eva , Miklasova Natalia , Berindan-Neagoe Ioana , Saha Bhaskar
Published: July 2015

Chronic inflammation is associated with the metastasis of tumor cells evolving from a benign tumor to disseminating cancer.  Such a metastatic progression is fostered by the angiogenesis propelled by various mediators interacting at the site of tumor growth. Angiogenesis causes two major changes that are assisted by altered glycosylation and neo-antigen presentation by the cancer cells. The angiogenesis-promoted pathological changes include enhanced inflammation and degradation of tissue matrices releasing tumor cells from the site of its origin. The degraded tumor cells release the neo-antigens resulting from altered glycosylation. Presentation of neo-antigens to T cells escalates metastasis and inflammation. Inflammasome activation and inflammation in several infections are regulated by iron. Based on the discrete reports, we propose a link between iron, inflammation, angiogenesis and tumor growth. Knowing the link better may help us formulate a novel strategy for cancer immunotherapy.
VEGF involvement in psoriasis
Authors: Marina Mihaela Elena , Roman Iulia Ioana , Constantin Anne-Marie , Mihu Carmen Mihaela , Tătaru Alexandru Dumitru
Published: July 2015

Vascular endothelial growth factor (VEGF) is a key growth factor, regulating the neovascularization, during embryogenesis, skeletal growth, reproductive functions and pathological processes. The VEGF receptors (VEGFR) are present in endothelial cells and other cell types, such as vascular smooth muscle cells, hematopoietic stem cells, monocytes, neurons, macrophages, and platelets.Angiogenesis is initiated by the activation of vascular endothelial cells through several factors. The excess dermal vascularity and VEGF production are markers of psoriasis.The pathological role of VEGF/VEGFR signaling during the psoriasis onset and evolution makes it a promising target for the treatment of psoriasis. Antibodies and other types of molecules targeting the VEGF pathway are currently evaluated in arresting the evolution of psoriasis.
Analysis of students’ nervous system’s typological properties, in aspect of response to extreme situation, with the help of multi-dimensional analysis
Authors: Kozina Z.L. , Iermakov S.S.
Published: July 2015

Purpose: determination of objective and subjective characteristics of students’ with different properties of nervous system fear of heights. Material: In the research 10 students of 18-19 years old age, who did not practice sports, participated. The students fulfilled one exercises: passing suspended ferriage in hiking. This exercise gives subjective perception of height and creates artificial conditions for appearing of fear. He exercise was fulfilled under all required safety measures and supervised by experienced instructor. Cluster and discriminant analysis were used. Results: we have shown that is possible to divide people into groups by indicators of functional changes in extreme situation in combination with indicators of psycho-physiological potentials and properties of nervous system. We have found that the most significant indicators for distribution of students into groups by individual typological properties are speed and accuracy of passing of psycho-physiological tests with different modes of signals’ supply as well as functional changes before exercise of extreme character. Conclusions: It was determined that students with strong type of nervous system had confidently less heart beats rate before fulfillment of extreme exercise than the students with weak type of nervous system. Subjective feeling of fear before fulfillment of extreme exercise was also confidently less in representatives of strong type of nervous system.
Assessment of students’ health condition by indicators of adaptation potential, biological age and bio-energetic reserves of organism
Authors: Martyniuk O.V. , Vilyanskiy V.N.
Published: July 2015

Purpose: to assess students’ health condition by indicators of adaptation potential, biological age and express-assessment. Material: in the research 47 first and second year girl students participated, who belonged to main health group. Results: we distributed the girl students into three groups: 14.89% of them were included in group with “safe” health condition; 34.04% - in group of “third state”; 51.06% were related to group with “ dangerous” health condition. We established that dangerous level was characterized by energy potential of below middle and low level. It is accompanied by accelerated processes of organism’s age destructions and tension of regulation mechanisms. Conclusions: the received results permit to further develop and generalize the data of students’ health’s assessment by indicators of adaptation potentials, biological age and physical health’s condition.
Model of students’ sport-oriented physical education with application of information technologies
Authors: Olkhovy O.M. , Petrenko Y.M. , Temchenko V.A. , Timchenko A.N.
Published: July 2015

Purpose: working out and practical application of approaches to perfection of physical education system’s functioning. Material: in the research students (boys- n=92, girls- n=45) of 18-20 years old took part. Results: structural model of students’ sport-oriented physical education with application of information technologies has been formed. The main purpose of such model’s creation was cultivation of students’ demand in physical functioning and formation of healthy life style in students’ environment. The model of the process includes orienting, executive and control components. In this model groups of commonly accepted physical education and sport-oriented groups function. Conclusions: Main structural components of the created model have been determined: conceptual, motivation-active, resulting.
Coordination training of sportsmen, specializing in sport kinds of gymnastic
Authors: Tereshchenko I.A. , Otsupok A.P. , Krupenya S.V. , Liauchuk T.M. , Boloban V.N.
Published: July 2015

Purpose: experimental substantiation of effectiveness of coordination training program, worked out for sportsmen, specializing in sport kinds of gymnastic. Material: In the research first year students (21 persons: 14 girls and 7 boys of age 17-18 years) participated. All they specialized in sport kinds of gymnastic. From them there were 15 masters of sports and 6 candidate masters of sports. Results: students’ sensor motor coordination was confidently increased by means of realization of program of exercises for perfection of static-dynamic and static-kinetic stability. Conclusions: we recommend new direction of specific exercises’ realization; exercise, developing and improving static-dynamic and static-kinetic body balance. Coordination training of sportsmen, specializing in sport gymnastic shall take one of priority places in system of physical education and sport training means.
STUDY OF BODY MASS INDEX (BMI), BODY FAT PERCENT (%BF), AND WAIST TO HIP RATIO (WHR) IN MALE PHYSICAL EDUCATION STUDENTS
Authors: Mehrzad Shabani , Saeid Shakerian , Rouholah Fatemi
Published: July 2015

The purpose of this study was to investigate body mass index (BMI), body fat percent (%BF) and waist-hip ratio (WHR) of physical education male students of Shahid Chamran University and comparison with national and international body composition standards. Material : Subjects were seventy five male students physical education male students of Shahid Chamran University of mean age (23.21±2.78), mean height (174±5.71) and mean weight (70.07±9.43) who were selected randomly. Some of body composition indices were determined with body composition analyzer apparatus (bioelectrical impedance apparatus). Results : Descriptive characteristics of subjects include: body fat percent (19.37±3.62), waist-hip ratio (0.80±0.037) and body mass index (23.18±2.68). To categorize and regulate data we used descriptive analyzes, to calculate Pearson correlation coefficient we used presumption analyzes and to compare the obtained data with national standards we used T-test statistical procedure. There are significant correlations between body mass index and waist-hip ratio (P=0.709, r=0.001), between body mass index and body fat percent (P=0.783, r=0.001) and between body fat percent and waist-hip ratio (P=0.809, r=0.001). There are significant differences between mean body mass index and its national standard (P=0.001), between mean waist-hip ratio and its national standard (P=0.001) and between mean body fat percentage and its national standard (P=0.001). Conclusions : Results revealed that according to national standards of body fat percentage and body mass index of subjects, they were assigned to more than intermediate limitation; it may be due to abnormal nutrition, unregulated exercise or physical activity and heredity.
THE ASSESSMENT OF DIFFICULTY OF YACHT SAILING CLASSES AND STUDENTS' GLOBAL SELF-ESTEEM
Authors: Romanowska-Tolloczko Anna , Piwowarczyk Piotr
Published: July 2015

Purpose: determination of relationship between the level of students’ global self-esteem and their perception of the degree of difficulty sailing yacht classes. Material and methods: Study consisted of 178 students of University School of Physical Education in Wrocław. The study used two tools: Polish adaptation of SES M. Rosenberg Self-Esteem Scale and a questionnaire designed by the authors of the study. Results: men were characterized by a higher self-esteem than women. Distribution of the results obtained by women was closer to a normal distribution, but it was not completely compatible with it. The relationship was noted between the level of global self-esteem of the students and their perception of the degree of difficulty of the course. People with higher self-esteem assessed the knowledge and skills of sailing as easier. For people with lower levels of self-esteem sailing it was a more difficult. Conclusions: self-acceptance and self-esteem have a substantial impact on goal setting and the perception and taking various tasks. It is therefore important to help young people to build adequate self-esteem and positive self-image, because faith in its own strength and capabilities is a key element in achieving success in every area of life.
Adaptação transcultural do instrumento “Nursing Students’ Attitudes Toward Mental Health Nursing and Consumers” no Brasil
Authors: Soares Marcos Hirata , Luís Margarita Antonia Villar , Hirata Andréia Gonçalves Pestana
Published: July 2015

RESUMO Objetivo: realizar a adaptação transcultural a escala Nursing Students’ Attitudes Toward Mental Health Nursing and Consumers no Brasil. Métodos: os dados foram coletados em 2013, na cidade de Londrina-PR. As etapas metodológicas foram as de equivalência conceitual e de itens, equivalência semântica e equivalência operacional. Resultados: a validade de conteúdo realizada por um grupo de juízes, com o consenso mínimo de 80% resultou numa escala composta por 35 itens divididos em 6 fatores. Houve concordância de 100% dos juízes quanto aos parâmetros de clareza de linguagem, pertinência prática, e relevância teórica, assim como para exclusão de um fator. Conclusão: o instrumento está adaptado culturalmente para o Brasil, assim como apresenta validade de conteúdo satisfatória. São sugeridos estudos das propriedades psicométricas como a validade de construto, consistência interna e a confiabilidade do instrumento.
Percepção dos enfermeiros gestores da atenção primária sobre o processo de enfermagem
Authors: Diniz Ieda Aparecida , Cavalcante Ricardo Bezerra , Otoni Alba , Mata Luciana Regina Ferreira da
Published: July 2015

RESUMO Objetivo: analisar a percepção dos enfermeiros gestores da atenção primária à saúde sobre o processo de enfermagem. Método: estudo qualitativo em que os dados foram coletados por meio de entrevistas e analisados a partir da Análise de Conteúdo proposta por Bardin. Resultados: os gestores reconhecem a importância do processo de enfermagem, embora sua implementação não seja prioridade no momento. Existe dificuldade conceitual e não compreensão de que a implementação da metodologia de assistência deva perpassar pela gestão municipal. Conclusão: necessita-se de ampliação da visão dos gestores quanto à importância do processo de enfermagem e qualificação dos profissionais. Acredita-se na participação ativa dos órgãos legisladores de enfermagem, gestão local de saúde e governo federal para que a implementação do processo de enfermagem seja viabilizada.
Análise do conteúdo de uma tecnologia para raciocínio diagnóstico de enfermagem
Authors: Cleires Alessandra Borges Brum , Brandão Marcos Antônio Gomes , Dias Beatriz Fernandes , Primo Cândida Caniçali
Published: July 2015

RESUMO Objetivo: submeter à análise do conteúdo uma estratégia metacognitiva de avaliação indireta no pré-encontro com o cliente. Método: estudo metodológico. Utilizou-se o índice de concordância e confiabilidade entre juízes para os critérios de pertinência, adequação, clareza, concisão e precisão de uma tecnologia para raciocínio diagnóstico de enfermagem por iniciantes por meio de formulário eletrônico. Fizeram parte da amostra 13 juízes. Os dados foram analisados por estatística descritiva. Resultados: houve alta concordância e confiabilidade interavaliadores para 85 itens relacionados à etapa de coleta de dados e descrição da estratégia. Apenas cinco itens não alcançaram os critérios de validação e devem ser reformulados. Conclusão: a avaliação indireta no préencontro é pertinente ao processo de raciocínio diagnóstico, sendo possível desenvolver habilidades e competências diagnósticas no iniciante por meio de estratégias, propostas em uma tecnologia inovadora sob a forma de diagrama.
Percepção dos graduandos de enfermagem sobre o seu envelhecimento
Authors: Dourado Mavy Batista , Oliveira Ana Luiza Barreto de , Menezes Tânia Maria de Oliva
Published: July 2015

RESUMO Objetivo: analisar a percepção dos graduandos de enfermagem sobre o próprio envelhecimento. Método: pesquisa de abordagem qualitativa, realizada em agosto e setembro de 2011, com 18 graduandos de enfermagem de uma Universidade pública de Salvador (Bahia). Os depoimentos foram analisados por meio da Análise de Conteúdo. Resultados: apreendeu-se o núcleo temático: Percepção do graduando de enfermagem sobre o próprio envelhecimento e, a partir deste, emergiram duas subcategorias: A) O Não Pensar; B) O contexto influenciando no processo. Conclusão: os graduandos revelam que o envelhecimento está intrínseco ao desenvolvimento humano, e possui o vínculo familiar, a espiritualidade e atividade física como ferramentas fundamentais para um envelhecimento ativo. Entretanto, os mesmos relatam que, o modo de vida acelerado e estressante vivido na sociedade possibilita inserir hábitos considerados inadequados, como o consumo de “fast food” e álcool, que trazem influências negativas para o próprio processo de envelhecimento.
Avaliação dos riscos de queda de pacientes em uso de medicamentos prescritos em hospital universitário
Authors: Ferreira Neto Carolina Justus Buhrer , Rocha Andressa Schaia , Schmidt Larissa , Almeida Fernanda Pailo de , Dutra Jhenifer Carvalho , Rocha Maria Dagmar da
Published: July 2015

RESUMO Objetivo: estratificar medicamentos prescritos em escala de risco de queda, identificando subgrupos de medicamentos e unidades de internação com maior risco de queda. Método: estudo retrospectivo em prescrições de clínica médica, clínica cirúrgica, unidade de terapia intensiva geral. Fatores de risco considerados: 1) hipotensão ortostática; 2) hipotensão arterial; 3) hipertensão arterial; 4) bradicardia; 5) agitação psicomotora; 6) confusão mental; 7) tontura; 8) sonolência/sedação; 9) diminuição da visão; 10) convulsões; 11) atonia/distonia/fraqueza muscular; 12) hipoglicemia; 13) urgência micção e 14) urgência defecação/diarreia. Estabeleceu-se graus de risco: 0: 0 fator; I: 1-2 fatores; II: 3-5 fatores; III: 6-9 fatores e IV: 10-14 fatores. Resultados: foram analisados 3893 medicamentos, estratificados como graus: 0 22,7%; I 33,5%; II 28%; III 15,1%; IV 0,7%. Os graus III e IV referiram-se mais frequentemente a fármacos para distúrbios da acidez gástrica, 22,6%, e psicolépticos, 100%. Conclusão: conhecer fatores de risco associados aos medicamentos pode contribuir para prevenção e diminuição de quedas, sobretudo quando regimes terapêuticos não podem ser modificados.
ANÁLISE DAS PUBLICAÇÕES SOBRE CAPACIDADES DINÂMICAS ENTRE 1992 E 2012: DISCUSSÕES SOBRE A EVOLUÇÃO CONCEITUAL E AS CONTRIBUIÇÕES DOS AUTORES DE MAIOR NOTORIEDADE NA ÁREA
Authors: CARDOSO ANDRÉ LUÍS JANZKOVSKI , KATO HEITOR TAKASHI
Published: July 2015

RESUMO Alguns elementos constituintes da abordagem das capacidades dinâmicas aparecem em diversas publicações (Schumpeter, 1942; Penrose, 1959, Nelson & Winter, 1982, Prahalad & Hamel, 1990), mas é a partir de Teece, Pisano e Schuen (1997) que o tema capacidades dinâmicas tem despertado interesse crescente dos estudiosos. A relevância do tema tem levado pesquisadores a considerar capacidades dinâmicas como um novo e robusto paradigma no campo da estratégia, principalmente por propor respostas às lacunas deixadas pela resource-based view (RBV). O arcabouço teórico das capacidades dinâmicas sofreu alterações ao longo do tempo (Barreto, 2010) e apresenta, além de convergências, ramificações entre seus defensores, principalmente no tocante ao embasamento e às fontes teóricas utilizadas em suas diferentes concepções. O conceito de capacidade dinâmica como fonte de vantagem competitiva fez com que estudos sobre esse tema proliferassem ao longo dos últimos anos, contudo essa proliferação ocorre de maneira não homogênea e consensual, o que torna o aprofundamento do tema um desafio ainda maior. Dessa forma, considerando as principais publicações sobre o tema capacidades dinâmicas entre os anos de 1992 e 2012, esta investigação apresenta as contribuições dos principais autores para o desenvolvimento da abordagem das capacidades dinâmicas e discute sua evolução conceitual. Trata-se de um estudo bibliométrico com tratamento dos dados por meio de escala multidimensional e análise de rede. Qualitativamente, a evolução da abordagem é analisada considerando os diferentes conceitos e proposições teórico-empíricas apresentados por autores de maior notoriedade na área, em diversos estudos sobre o tema. Os resultados indicam 1. uma evolução conceitual e de proposições teórico-empíricas; 2. um aumento de citações a autores contribuintes do tema; 3. uma diversidade de fontes de publicação e multidisciplinaridade da abordagem; e 4. uma multiplicidade temática relacionada às capacidades dinâmicas. Temas como conhecimento, competências, aprendizagem, criação de valor, capacidade dos gestores, parcerias e alianças estratégicas, e associações com capacidades dinâmicas ampliam os debates em torno de pontos nevrálgicos, ausentes ou obscuros das teorias antecessoras, reforçando seus pontos contribuintes como uma forma de ampliar a possibilidade de testes e comprovações empíricas, suplantando, de certa forma, limitações de teorias anteriores.
CAPACIDADE DE ABSORÇÃO, TURBULÊNCIA AMBIENTAL E DESEMPENHO ORGANIZACIONAL: UM ESTUDO EM EMPRESAS VAREJISTAS CATARINENSES
Authors: KOERICH GRAZIELE VENTURA , CANCELLIER ÉVERTON LUÍS PELLIZZARO DE LORENZI , TEZZA RAFAEL
Published: July 2015

RESUMO Em mercados cada vez mais dinâmicos e turbulentos, as organizações dependem cada vez mais do conhecimento externo, recurso essencial no centro das estratégias organizacionais, como forma de promover a inovação e melhorar seu desempenho (Ireland, Hitt, & Vaidyanath, 2002; Zollo, Reuer, & Singh, 2002; Cassiman & Veugelers, 2006; Morgan & Berthon, 2008; Lichtenthaler, 2009). A capacidade de absorção (absorptive capacity – Acap) traduz-se como um dos processos-chave de aprendizagem das organizações no que diz respeito à identificação, assimilação e exploração dos conhecimentos do ambiente (Cohen & Levinthal, 1989; Lane, Koka, & Pathak, 2006). Apesar de um considerável número de estudos empíricos ter usado a Acap, uma medida válida que incorpore essas várias dimensões ainda não foi desenvolvida (Wang & Ahmed, 2007). Lane et al. (2006) observam que a maioria dos pesquisadores tipicamente mede a Acap como simples proxies de P&D (por exemplo, Cohen & Levinthal, 1989), ignorando a variedade de suas dimensões e suas implicações para os diferentes resultados organizacionais. Não obstante, poucos estudos empíricos têm capturado a natureza multidimensional da Acap (Jansen, Van Den Bosch, & Volberda, 2005). O presente estudo verifica a influência da Acap no desempenho organizacional sob diferentes condições de turbulência ambiental. Trata-se de um estudo descritivo do tipo levantamento ou survey, com corte transversal. A população-alvo da pesquisa foi composta por empresas de varejo na região da Grande Florianópolis, com pelo menos um ano de atividades ininterruptas. Os dados foram coletados por meio de questionários autoadministrados e respondidos pelo principal dirigente das empresas, quando possível, ou por alguém responsável pelo estabelecimento. Além disso, diferentes características de moderação, como idade e tamanho das organizações, são consideradas. Os resultados a partir de 230 empresas varejistas mostram que a Acap tem efeito positivo sobre o desempenho organizacional. Com relação ao efeito moderador da turbulência ambiental sobre a Acap e os indicadores do desempenho organizacional, verificou-se que, dos cinco indicadores de desempenho analisados, três deles confirmaram a influência da turbulência ambiental.
CAPABILITIES, INNOVATION, AND OVERALL PERFORMANCE IN BRAZILIAN EXPORT FIRMS
Authors: CABRAL JOSÉ EDNILSON DE OLIVEIRA , COELHO ARNALDO FERNANDES MATOS , COELHO FILIPE JORGE FERNANDES , COSTA MARIA DA PENHA BRAGA
Published: July 2015

ABSTRACT This article extends the current research on innovation by investigating the relationship between innovative capabilities and export firms’ overall performance. From the perspectives of the resource-based view (RBV) and dynamic capability, we examine the differential and interactive effects of exploration and exploitation capabilities in product innovation for external markets and overall performance (direct and mediated by a new product). In addition, we test the moderating effect of market dynamism and the controlling effect of firm size on these relationships. Hence, the main contribution of this article is developing and empirically testing an original model, by combining these constructs that address new relationships, in an emerging country. This model was tested with data from 498 Brazilian export firms, distributed throughout all Brazilian manufacturing sectors, by firm size, and in states. The analysis was made with application of the structural equation modeling (SEM). As a result, we found support for the assumptions that exploitation capabilities influence product innovation and overall performance, whereas exploration capabilities and their interaction to exploitation capabilities influence overall performance, but not product innovation. Additionally, the relationship between exploitation capabilities and overall performance is mediated by product innovation. Unlike hypothesized, market dynamism does not moderate the relationship between product innovation and overall performance. Furthermore, firm size works as a controlling variable in the relationships analyzed. Regarding the implications for theory, this study contributes to grasp that exploitation capabilities influences a firm’s overall performance, both directly and indirectly (via product innovation), and highlights the various direct and mediatory effects of innovation on overall performance. These insights show the importance of considering the role of mediating and moderating variables in theory and research models that address the determinants of overall performance to avoid overestimation of certain constructs. Finally, the paper provides original empirical support for the hypothesis of the interdependency of product innovations for external markets and overall performance.
Water use optimization through alternative water depths in the Formoso Irrigation District
Authors: Santos Júnior Jorge L. C. dos , Frizone José A. , Paz Vital P. da S.
Published: July 2015

This study aimed to propose an optimal cultivation plan using a separable linear programming model, with alternative water depths, that allows maximizing the net revenue of the Formoso Irrigation District (FID), specifically with respect to the area of family plots. The model used in this study was based on data from the 2010 Annual Agricultural Report of the 2nd Regional Superintendency of CODEVASF (São Francisco and Parnaíba Valley Development Company), the 2011 Service and Extension Plan for the Formoso Irrigation District and further information provided by this government department. Based on the studied crops and their respective water response functions, on the constraints of cultivated area, prices and production costs, the maximization of the net revenue in the FID was equal to R$ 68,384,956.53, using the following cultivation pattern: 30 ha of pumpkin, 30 ha of Phaseolus beans, 977 ha of watermelon, 1868 ha of banana, 1200 ha of papaya and 300 ha of Tahiti lime. The optimal solution found by the model indicated that the monthly water availability in the FID did not constitute an effective restriction to crop production, since in all months the water volume needed was lower than the maximum volume that the FID can provide (10,833,500 m3). For the monthly volumes used in the solution, the available annual volume will not be restrictive if the annual pumping capacity is higher than 79,649,000 m3.
One day-old chicks transport: Assessment of thermal profile in a tropical region
Authors: Nazareno Aérica C. , Silva Iran J. O. da , Vieira Frederico M. C. , Santos Rofson F. S.
Published: July 2015

The aim of this study was to assess the thermal profile of truck with different levels of box placement during one day-old chicks transport. An experiment was conducted through monitoring of 11 transport loads. A acclimatized truck was used in this research, with maximum capacity of 630 one day-old chicks boxes, totalizing 63,000 animals. The assessment of thermal environment was performed in 5 min intervals, through the following variables: temperature, relative humidity and specific enthalpy. The treatments were registered at two levels of the load (first rack and floor) where 17 data loggers were distributed throughout the truck. The experiment used a completely randomized design and geostatistics was used for spatial dependency and Kriging interpolation. The microclimatic conditions of the truck were not as per recommended values, which confirm a heterogeneous distribution of heat and moisture in environment. Regarding the box positioning, the mean values of thermal variables associated with thermal comfort of one day-old chicks was found in the floor area. The most stressful environment for birds inside the truck was located in front and at the center of the truck.
Modelagem matemática da secagem convectiva com radiação infravermelha de grãos de Moringa oleifera
Authors: Nascimento Vânia R. G. , Biagi João D. , Oliveira Rafael A. de
Published: July 2015

Os modelos matemáticos aplicados à secagem auxiliam no dimensionamento de secadores, na previsão da taxa de secagem, melhoram as condições de secagem e avaliam a qualidade do processo; assim, o objetivo deste trabalho foi avaliar o ajuste dos modelos de Page, Midilli, Newton e da segunda lei de Fick aos dados experimentais da secagem convectiva com aplicação de radiação infravermelha de grãos de Moringa oleifera L. Avaliaram-se, também, o efeito dos fatores temperatura do ar (30-60 ºC), a velocidade do ar (0,55-1,05 m s-1), o tempo de aplicação da radiação infravermelha (120-300 s) e a intensidade da radiação infravermelha (1500-4500 W) sobre a difusividade efetiva, teor de água, atividade de água e tempo de secagem. Os modelos explicaram mais de 98% do comportamento da secagem destacando-se que o modelo de Midilli apresentou o melhor ajuste aos dados experimentais. A difusividade efetiva foi calculada com equação proposta pela Segunda Lei de Fick, solução para formato esférico e os valores obtidos variaram entre 6,44x10-10 e 9,89x10-10 m2 s-1. Os fatores temperatura do ar e tempo de aplicação da radiação infravermelha foram significativos sobre todas as respostas estudadas considerando-se 90% de confiança.
Seletividade do halosulfuron-methyl aplicado em pré-emergência da cultura da mamoneira
Authors: Silva Renata L. M. da , Costa Augusto G. F , Sofiatti Valdinei , Ribeiro Valeria V. , Maciel Cleber D. de G. , Monteiro Danilo R.
Published: July 2015

A mamoneira é bastante sensível à competição, havendo necessidade de ampliar as alternativas de manejo de plantas daninhas, considerando-se principalmente as opções de herbicidas seletivos, visando favorecer a expansão das áreas de cultivo. O objetivo deste trabalho foi avaliar a seletividade do herbicida halosulfuron-methyl para a cultura da mamoneira aplicado em pré-emergência, antes da semeadura. Dois experimentos foram conduzidos em condições de casa-de-vegetação, um com solo arenoso e outro com franco-argilo-arenoso, em delineamento inteiramente casualizado com quatro repetições. Os tratamentos se constituíram de cinco períodos entre a aplicação do herbicida e a semeadura (0, 7, 14, 21 e 28 dias) e uma testemunha sem aplicação. As avaliações realizadas foram: altura de plantas aos 7, 14, 21 e 28 dias após a emergência (DAE); diâmetro do caule, área foliar, volume de raízes, massa seca de parte aérea e raízes aos 28 DAE. Halosulfuron-methyl (112,5 g ha-1) é seletivo para a cultura da mamoneira quando aplicado na modalidade de pré-emergência, antes da semeadura.
Sem começo e sem fim ... com as práticas corporais e a Clínica Ampliada*
Authors: Mendes Valéria Monteiro , Carvalho Yara Maria de
Published: July 2015

Nos últimos anos, embora tenha ocorrido um aumento de ações com práticas corporais/atividade física na atenção básica, compreendidas como uma ferramenta de ampliação da saúde da população,é premente qualificarmos essas iniciativas com vistas ao acolhimento e ao reconhecimento das necessidades de saúde das pessoas, especialmente considerando o distanciamento entre formação e intervenção que ainda persiste nas subáreas da saúde. Nessa direção, propomos a interlocução entre práticas corporais e Clínica Ampliada, problematizando a produção do cuidado por meio de um caminho mais criativo, que privilegia movimentos de composição entre a singularidade dos usuários e trabalhadores e os princípios do Sistema Único de Saúde (SUS). Com esse arranjo metodológico, trilhamos um percurso que diz de um saber-fazer em processo e de uma experiência de cuidado produzida coletivamente, e nos convoca para pensar e escrever sobre o entre.
ESTRATOS
Authors: Aversa Paula Carpinetti
Published: July 2015

Este trabalho apresenta um diagrama produzido na dissertação “Vibrações: a Arte/Educação nas Práticas e nos Discursos em Saúde Mental”, realizada junto ao programa de pós-graduação em Artes da Unesp. Valendo-se da perspectiva arqueológica proposta por Foucault, procurou-se escavar os estratos ou camadas sobrepostas dos saberes construídos em torno das concepções de loucura, subjetividade e arte, com a finalidade de ressaltar as transformações históricas que tais concepções sofreram ao longo dos tempos, por meio de palavras e imagens.