bluuebunny/crossref_metadata_2025 huggingface dataset:
EIGENVALUES VARIATION OF THE P-LAPLACIAN UNDER THE RICCI FLOW ON SM
Authors: Azami Shahroud
Published: February 2017

Let (M,F) be a compact Finsler manifold. Studying the eigenvalues and eigenfunctions for the linear and nonlinear geometric operators is a known problem. In this paper we will consider the eigenvalue problem for the p-laplace operator for Sasakian metric acting on the space of functions on SM. We find the first variation formula for the eigenvalues of p-Laplacian on SM evolving by the Ricci flow on M and give some examples.DOI : http://dx.doi.org/10.22342/jims.22.2.215.157-177
STRONGLY CLEAN ELEMENTS IN A CERTAIN BLOCK MATRIX RING
Authors: Nikkhah Abolfazl , Davvaz Bijan
Published: February 2017

In this paper, we investigate the concepts of strongly clean, strongly $\pi$-regular and strongly $J_n$-clean related to the ring $A=\begin{pmatrix}R&_RM_S\\0&S\end{pmatrix}$. Moreover, we give several equivalent conditions such that an element $\alpha\in End(A)$  is strongly clean.DOI : http://dx.doi.org/10.22342/jims.22.2.259.151-156
ON THE DIOPHANTINE EQUATION $2^x + 17^y =z^2$
Authors: Rabago Julius Fergy T.
Published: February 2017

We show that the Diophantine equation 2x+ 17y = z^2, has exactlyve solutions (x; y; z) in positive integers. The only solutions are (3; 1; 5), (5; 1; 7),(6; 1; 9), (7; 3; 71) and (9; 1; 23). This note, in turn, addresses an open problemproposed by Sroysang in [10].DOI : http://dx.doi.org/10.22342/jims.22.2.422.177-182
OS LIMITES À LIBERDADE NA SOCIEDADE DE CLASSES: algumas reflexões éticas
Authors: Paneghini Luciana Ribeiro
Published: February 2017

Este trabalho objetiva analisar a assertiva “a sua liberdade termina quando começa a do outro”, desmistificando o individualismo implícito à mesma. Para tanto, o artigo recorrerá à concepção marxiana de liberdade, buscando analisar quais os limites do capitalismo à liberdade, como valor ético humano, adquirido por meio do trabalho não alienado, fundamento ontológico do ser social. O reconhecimento da liberdade dos indivíduos sociais, enquanto sujeitos éticos e políticos, supõe a superação da cotidianidade e do moralismo. A liberdade, como um dos pressupostos do Código de Ética dos assistentes sociais, direciona o trabalho profissional cotidiano, no horizonte da emancipação humana.
CONSOLIDAÇÃO E ATUALIDADE DO CAPITALISMO DEPENDENTE NO BRASIL: a contribuição de Florestan Fernandes
Authors: Perez Davi , Lara Ricardo
Published: February 2017

A interpretação de Florestan Fernandes sobre a revolução burguesa no Brasil oferece fonte indispensável para os estudos da realidade social brasileira. Este artigo tem como objetivo resgatar a compreensão elaborada pelo autora respeito das particularidades da revolução burguesa no Brasil e do capitalismo dependente. Para isso, apresenta-se histórico do processo de desenvolvimento e consolidação do capitalismo no país, seguido de dados e análises para problematizar a situação atual.
Relações de trabalho e competências profissionais dos assistentes sociais na região metropolitana de Porto Alegre
Authors: Prates Jane Cruz , Closs Thaísa Teixeira
Published: February 2017

O presente artigo enfoca estudo realizado sobre a formação e a inserção de assistentes sociais egressos de unidades de formação da Região Metropolitana de Porto Alegre no mercado de trabalho. Apresenta-se um recorte dos dados analisados enfatizando a coleta realizada com 86 profissionais que explicitam as competências requisitadas, as condições e relações de trabalho, as dificuldades encontradas para a materialização do exercício profissional e necessidades de educação permanente. Analisam-se os resultados à luz do projeto ético-político profissional e das competências requisitadas pela profissão que não se reduzem às demandas do mercado.
Patriarcado e capitalismo: uma relação simbiótica
Authors: Souza Terezinha Martins dos Santos
Published: February 2017

Este artigo discute a forma como o patriarcado, de existência muito anterior ao capitalismo, assumiu, ao longo da história, várias facetas, brindando a essa opressão uma aparência de indestrutibilidade. Desde o século XIX, diversas mulheres têm travado a luta pela participação política como uma das formas de combate ao patriarcado. A forma que a divisão sexual do trabalho assume a partir das sociedades industriais, implica em mudanças na estrutura familiar, em direção à família nuclear. Com o revolucionar do capitalismo, que se apoia na hierarquia patriarcal, as funções de reprodução social (vida privada) se tornam função exclusiva das mulheres, ao passo que as tarefas da produção da vida (vida pública) se tornam função dos homens. Ocorre a separação entre o local do trabalho e a casa. Pela simbiose capital-patriarcado, expulsam-se as mulheres do mercado de trabalho no século XIX. No entanto, no final do mesmo século, a força de trabalho das mulheres passa a ser exigida pelo capital. Fomenta-se, então, uma nova realidade social para as mulheres, em que se propicia o surgimento de reivindicações e lutas pela sua emancipação política. Objetiva-se analisar a relação entre capitalismo e patriarcado, bem como das estratégias e lutas pensadas para combatê-los, de forma que não se hipostasie a opressão, mas que também não a menospreze, usando o método materialista histórico-dialético para pensar as complexas relações entre exploração de classe e dominação/opressão de sexo/gênero.
Mulheres rurais e as lutas pela água na América Latina
Authors: Meira Cordeiro Rosineide de Lourdes , Morales Paola Alejandra , Silveira Sandra Maria Batista , Clemente Flávia da Silva
Published: February 2017

Este artigo trata das lutas das mulheres rurais na América Latina por água e tem como objetivo analisar os lugares das mulheres quanto ao acesso, gestão e participação nos espaços decisórios das políticas hídricas dos seus países. Foi analisada a Campanha Latino-americana “Água é Vida e Direito”, realizada pela Rede Latino-americana e Caribenha das Mulheres Rurais. O pressuposto do artigo é que a desigual distribuição dos recursos naturais no campo está relacionada com os sistemas de exploração – dominação de classe, gênero, raça e etnia entre outros. Os resultados apontam que as mulheres cuidam do abastecimento, porém não participam dos espaços decisórios. A apropriação privada das águas e a acentuada destruição dos mananciais hídricos são os principais responsáveis pelo cenário de indisponibilidade hídrica nos contextos rurais. As principais lutas são contra a privatização das águas, falta de políticas hídricas que atendam as reivindicações das populações rurais, especialmente, das mulheres camponesas, negras e indígenas.
Sobre o conceito de capital financeiro
Authors: Sabadini Mauricio de Souza
Published: February 2017

A obra O Capital financeiro (1910) de Rudolf Hilferding influenciou autores clássicos e contemporâneos acerca de várias temáticas na Economia e nas Ciências Sociais. Vivemos em um período histórico onde os entrelaçamentos entre a produção e as finanças estão cada vez mais fortes e complexos e onde os movimentos financeiros especulativos interferem fortemente na dinâmica da acumulação. Historicamente, as novas formas de poder econômico, a ascensão de novos atores financeiros, a forma de apropriação do excedente econômico, o esgotamento da livre-concorrência, o aumento da concentração de capital, requerem uma (re) leitura e um “novo olhar” interpretativo sobre contribuições de autores clássicos como Hilferding. Para tentar captar algumas dessas contribuições à luz de nossa realidade, este artigo tem por objetivo fazer uma (re) leitura do conceito de Capital financeiro.
Spontaneous perforation of sigmoid colon in a child with acute lymphoblastic leukemia
Authors: Miolski Jelena , Lazic Jelena , Radulovic Spasoje , Petrovic Mina , Bogicevic Vesna , Jankovic Srdja , Janic Dragana
Published: February 2017

Introduction. Perforation of the sigmoid colon is rare in children and its descriptions in medical literature are infrequent. Case Outline. In a 13-year-old boy with acute lymphoblastic leukemia, a ten-month course of chemotherapy was accompanied by many complications: parasitic infestation (Enterobius vermicularis), lung candidiasis, esophageal candidiasis, steroid diabetes, anaphylactoid reaction to L-asparaginase, febrile neutropenia, mucositis, anemia, thrombocytopenia, enterocolitis, and respiratory distress syndrome. During reinduction treatment, consisting of dexamethasone, vincristine, doxorubicin, and crisantaspase, he complained of abdominal pain and, upon radiographic examination, was found to have pneumoperitoneum. Because of suspicion of abdominal hollow organ perforation, he was subjected to explorative laparotomy, which yielded the diagnosis of perforation of the sigmoid colon. Conclusion. After an extensive review of the published reports on sigmoid perforation, all associated conditions that could possibly induce perforation ? such as Hirschsprung?s disease or foreign body ? were systematically excluded in our patient. Although typhlitis was the first diagnostic hypothesis, this was excluded by intraoperative findings, histopathology, and perforation site. To the best of our knowledge, this is the first report of a spontaneous perforation of the sigmoid colon in a child with acute lymphoblastic leukemia.
Diagnostic and treatment of endometriosis - recommendations for clinical practice
Authors: Spremovic-Radjenovic Svetlana , Bila Jovan , Vidakovic Snezana , Radunovic Nebojsa
Published: February 2017

Endometriosis is characterized by endometrial tissue found outside of the uterus (primarily in the pelvic cavity), causing chronic inflammatory reaction, infertility, and pain. The impact of endometriosis on different aspects of women?s life is important, including family and social life, work, and reproduction. The usual way of examining endometriosis is history taking, recognition of typical symptoms, clinical examination, and the use of imaging techniques, but the diagnosis is made by histopathology findings, usually after laparoscopy. The aim is to represent current recommendations and guidelines referring to endometriosis diagnostics and therapy, proposed by two major societies dealing with reproductive medicine: European Society for Human Reproduction and Embryology (ESHRE) and American Society of Reproductive Medicine (ASRM). The recommendations refer primarily to the therapeutic modalities in infertility and pain problems caused by endometriosis, and represent the basis of appropriate strategy for overcoming numerous problems linked with this chronic illness.
Serum biomarkers and clinical characteristics of patients with Hodgkin lymphoma
Authors: Simonovic Olivera , Todorovic Milena , Mihaljevic Biljana , Stoimenov-Jevtovic Tatjana , Petkovic Ivan , Macukanovic-Golubovic Lana , Marjanovic Goran
Published: February 2017

Background/Aim. In classical Hodgkin?s lymphoma (cHL) the existing prognostic scoring systems do not include markers that adequately reflect the interaction of malignant Hodgkin and Reed-Sternberg (HRS) cells and tumor environment. The aim of this study was to determine the relationship between serum Galectin-1 (Gal-1) and soluble CD163 (sCD163) and the clinical status of patients with cHL, with special emphasis on the presence of relapse, progression, or resistance to the therapy applied. Methods. The research included 79 patients of whom 63 were patients with cHL, and the control group of 16 healthy volunteers. The study group of 63 patients with cHL included a subgroup of newly diagnosed patients without therapy, newly diagnosed patients with therapy, patients with relapse and progression of the disease and primary refractory patients during 2014 and 2015. Results. Analysis of the levels of sCD163 and Gal-1 within a group of patients suffering from cHL showed that the values of both molecules were higher in relapsed patients and the subgroup with progressive disease comparing to the subgroup of newly diagnosed patients without therapy or patients with therapy onset. Conclusion. Determination of Gal-1 and sCD163 levels is simple and reliable analysis that can contribute to the identification of high-risk patients with cHL and deserves inclusion in current prognostic scoring systems.
Correlation of precancerous lesion incidence with duodenogastric reflux and N-nitroso compound duration at reflux and antireflux stomach surgery: An experimental study
Authors: Zlatic Aleksandar , Marinkovic Mirjana , Mihailovic Dragan , Radojkovic Milan , Radovanovic-Dinic Biljana , Djordjevic Miodrag , Korica Milan , Veljkovic Radovan
Published: February 2017

Background/Aim. Duodenogastric reflux occurs after gastroenteroanastomosis, with or without resection of the stomach (Billroth I, Billroth II), after vagotomy and pyloroplasty, gastroduodenostomy as well as in conservatively treated patients. The aim of this study was to analyse the effect of carcinogenic N-nitroso compounds (MNNG) influence in conjunction with duodenogastric reflux, in the function of time for precancerous lesions development in gastric mucosa. A particular purpose of the study has been to suggest some effective surgical procedures, which could prevent the harmful effects of duodenogastric reflux on gastric mucosa, as a potential activator of carcinogenesis. Methods. The research included 90 experimental, male Wistar rats, divided into 3 groups. The two experimental groups were subjected to two surgical procedures: Billroth II gastric resection (group B2), and the Roux-en-Y reconstruction (group RY), respectively. The control group (group C) animals did not receive any surgical treatment. All groups were administered per os chemical cancerogen MNNG. All anastomoses were performed by extra mucosal suture with monofilament polypropilene 7?0, and 8?0. The animals were sacrificed consecutively, and subjected to total gastrectomy after 8, 16 and 24 weeks. Results. Pathohistological analysis was performed on defined regions of the rat stomach in three time period. The B2 group, at the end of our experiment, showed predominant incidence of severe lesions: hyperplasia (0%), gastritis (0%), metaplasia (6.7%), dysplasia (46.7%), early carcinoma (20%) and carcinoma (26.7%). At the end of our experiment, the RY and C groups showed the similarities of the obtained results related to time with predominant incidence of mild lesions: hyperplasia (13.3% vs 0%, respectively), gastritis (13.3% vs 13.3%, respectively), metaplasia (6.7% vs 13.3%, respectively), dysplasia (66.7% vs 66.7%, respectively), with an extremely low incidence of early carcinoma (0% vs 6.7%, respectively) and no incidence of carcinoma (0% vs 0%, respectively). Conclusion. Without the presence of duodenogastric reflux, MNNG causes a low degree of precancerous gastric lesions. However, direct contacts of MNNG with gastric mucosa, including the presence of duodenogastric reflux, induce precancerous lesions and carcinoma. The percentage of reversible changes decreases with time, while the percentage of irreversible lesions and carcinoma increases. A lack of distinction in the findings between the RY and C groups confirms a gastroprotective role of the Roux-en-Y procedure.
Intracranial aneurysm as extra-renal manifestation of polycystic kidney disease: A case report
Authors: Rabrenovic Violeta , Culafic Slobodan , Rabrenovic Milorad , Dragovic Tamara , Tresnjic Sasa , Masic Sinisa , Matunovic Radomir , Antic Svetlana , Petrovic Milica , Pilcevic Dejan , Rakonjac Aleksandar
Published: February 2017

Introduction. Polycystic kidney disease is a hereditary kidney disease characterized by the occurrence of cysts (fluid-filled enlargements) in cortex or medula of the kidney, and is inherited in an autosomal dominant or autosomal recessive manner. In addition to multiple cysts in kidneys, there may be many extra-renal manifestations (cysts of the liver, pancreas, lungs, heart, etc.), among which the most serious one is intracranial aneurysms. Case report. A 57-year-old female patient with polycystic kidney disease and stage IV renal failure was hospitalized at our clinic due to decreased renal function, the development of urinary tract infections, headaches and unregulated blood pressure despite the usual treatment. This patient also had a number of associated diseases: obesity, diabetes mellitus (the insulindependent type), hypothyroidism, and depression syndrome. After better regulation of blood pressure, resolved urinary tract infections and improved renal function, there were still persistent headaches (resulting in the excessive use of analgesics). With adequate preparation, multislice computed tomography (MSCT) angiography of blood vessels of the head was performed. As a result, we diagnosed the saccular intracranial aneurysm (IA) with anterior localization. Regarding the symptoms, age and comorbidity, digital subtraction angiography (DSA) was performed, and showed saccular IA (5.2 mm ? 4 mm), with wide neck affecting both middle cerebral artery branches (MCA). During the procedure the stent was placed, which filled the aneurysm with spirals, cutting it off from circulation. After the successful procedure and without further complications, the patient no longer had headaches and blood pressure was maintained within the required limits with stable parameters of chronic renal failure. Conclusion. The case of the patient with polycystic kidney disease, stage IV chronic renal failure, with a number of comorbidities (headache, obesity, hypertension, diabetes mellitus, hypothyroidism) and diagnosed with symptomatic intracranial aneurysm was successfully solved with a multidisciplinary approach, emphasizing the importance of teamwork in daily practice.
The impact of gender differences on mortality in elderly patients after hip fracture
Authors: Prodovic Tanja , Ristic Branko , Vucetic Dusan , Ignjatovic-Ristic Dragana
Published: February 2017

Background/Aim. Hip fracture is one of the leading causes of death in elderly population. We evaluated the impact of gender differences on mortality rate in elderly patients with hip fracture. Methods. The study included all hospitalized elderly patients (aged over 65 years) with hip fracture during 2013. The patients were classified into four risk groups in accordance with institutional ?i?li Etfal risk factor assessment scale ISERFAS to estimate postoperative mortality. Clinical, laboratory and risk score results were gender matched between survived and deceased patients. Hospital mortality was monitored as well as mortality at intervals of three and six months. The prediction effect of gender and overall risk variables on mortality rate were determined by univariate and multivariate logistic regression analyses. Results. The complete sample included 434 female and 163 male patients. Average age of men was 77.95 years and 79.18 years for women. Femoral neck fracture was more often seen in women (44.5%), but with no statistically significant difference (p = 0.57). Significant difference between the genders in relation to the risk score values was determined (p = 0.024). It was observed that the values of risk score was lower in the female patients and higher in the male patients. Cumulative mortality was 6% during hospital stay, 17.8% after three months and 25% after six months, respectively. In-hospital and six months after the hip fracture, the mortality rates were similar in both genders. The mortality rate was significantly higher in male patients (p = 0.035) three months after the hip fracture. The overall risk observed at all mortality intervals was a significant predictor by itself (p = 0.000). Independent gender prediction effect disappeared in joint effects of patients? overall risk. Conclusion. Gender can be defined as a significant mortality predictor in patients with hip fracture. A risk assessment system to estimate postoperative mortality for hip fractures would be helpful in planning treatment for each patient.
El marketing interno y la orientación al aprendizaje como antecedentes a la innovación en las pequeñas y medianas empresas en Aguascalientes
Authors: Vega Martínez Javier Eduardo , Martínez Serna María del Carmen
Published: February 2017

El capital humano se ha convertido en una tarea en continua evolución dada la importancia que representa para las organizaciones; por otro lado, la innovación en las organizaciones trae ventajas competitivas para el mercado al que sirven. La literatura científica sobre el tema identifica dos orientaciones que son antecedentes importantes para generar mayores niveles de innovación: el marketing interno y la orientación al aprendizaje. Sin duda, el capital humano representa la base para su implementación. El objetivo del presente estudio fue analizar si por el incremento en la relación del marketing interno y la orientación al aprendizaje se eleva también el nivel de innovación, en otras palabras, si son constructos antecedentes a la capacidad de innovación en las pequeñas y medianas empresas (pymes) en el estado de Aguascalientes, México. Para ello se utilizó metodología cuantitativa a través del análisis de ecuaciones estructurales para analizar una muestra de 250 pymes. Los resultados señalan que el marketing interno y la orientación hacia el aprendizaje influyen positivamente en la innovación.Asimismo se comprueba que el marketing interno ejerce un efecto positivo estadísticamente significativo a un nivel de p<0.01 con un coeficiente path estandarizado de 0.218, con un valor t=(2.583) y la orientación al aprendizaje a un nivel de p<0.01 con un valor del coeficiente path estandarizado de 0.251 y valor t= (2.840). Para la implementación de ambas estrategias, recurso humano resulta es la clave para que los directivos dirijan sus esfuerzos; ambas estrategias (marketing interno y orientación al aprendizaje) se complementan para incrementar la innovación en productos, procesos y gestión.
Paljon sosiaali- ja terveyspalveluja käyttävien asiakkaiden palveluiden toteutuminen – työntekijöiden ja johtavien viranhaltijoiden haastattelututkimus
Authors: Alahuhta Maija , Niemelä Eija
Published: February 2017

Tutkimuksen tarkoitus oli kuvata, miten paljon palveluja käyttävien asiakkaiden sosiaali- ja terveydenhuollon palvelut toteutuivat erään peruspalvelukuntayhtymän työntekijöiden ja johtavien viranhaltioiden näkökulmasta. Tutkimuksen tavoitteena oli kehittää paljon palveluja käyttävien asiakkaiden palveluja. Tutkimuksen tiedonantajina (n=14) olivat yksitoista sosiaali- ja terveydenhuollon ammattilaista ja kolme johtavassa asemassa olevaa henkilöä. Aineisto kerättiin ryhmäkeskusteluilla (n=4), joissa teemoina olivat Terveyshyötymallin osa-alueet. Keskustelut nauhoitettiin, litteroitiin ja analysoitiin sisällönanalyysillä. Asiakkaan omahoitoon sitoutumisen tukeminen koettiin tärkeäksi ja siihen pyrittiin tekemällä yhdessä hoito- ja palvelusuunnitelma. Hoitosuunnitelma koettiin myös tärkeäksi hoitopäätösten tueksi. Tärkeänä päätöksenteon tukena terveydenhuollon työntekijät pitivät lääkärin konsultaatiota ja sosiaalihuollossa lainsäädäntöä. Palveluiden koordinointi ja yhteistyö eri sosiaali- ja terveydenhuollon sektoreiden, myös yksityisten ja kolmannen sektorin kesken, kaipaa kehittämistä. Tietotekniikasta oli hyötyä esimerkiksi hoitopäätöksiä tehtäessä, mutta tietojärjestelmien yhteensopimattomuus ja tietoturva koettiin asiakkaiden palveluiden ja hoidon esteeksi. Paljon palveluja käyttävien asiakkaiden palveluiden koordinoinnissa tulee kehittää palvelunohjausta.
PENERAPAN PSAK NO.4 SERTA RELEVANSI PSAK NO. 15 DAN 22 DALAM PENYUSUNAN LAPORAN KEUANGAN KONSOLIDASI
Authors: Riduwan Akhmad
Published: February 2017

Penyusunan laporan keuangan konsolidasi diatur dalam Pernyataan Standar Akuntansi Keuangan (PSAK) No.4. Selain PSAK No.4, dua PSAK lain juga mengatur beberapa hal yang relevan dengan penyusunan laporan keuangan konsolidasi, yaitu PSAK No.15 tentang Akuntansi Untuk Investasi Pada Perusahaan Asosiasi dan PSAK No.22 tentang Akuntansi Penggabungan Usaha. PSAK No.4 mendefinisikan kriteria konsolidasi sekaligus menguraikan tentang prosedur konsolidasi; PSAK No.15 mengatur investasi yang harus dipertanggungjawabkan dengan metode ekuitas, di mana metode ini erat kaitannya dengan laporan keuangan konsolidasi; sedangkan PSAK No.22 mengatur perlakuan akuntansi penggabungan usaha yang dapat berupa suatu akuisisi atau penyatuan kepemilikan, baik yang dilakukan melalui perolehan saham maupun aktiva neto. Artikel ini menguraikan tentang penerapan ketiga PSAK tersebut dalam penyusunan laporan keuangan konsolidasian. Pembahasan akan dimulai dari penggabungan usaha (PSAK No.22), kemudian dilanjutkan dengan akuntansi investasi metode ekuitas (PSAK No.15), dan pembahasan tentang laporan keuangan konsolidasian (PSAK No.4).
AKUNTANSI DANA PENSIUN DI INDONESIA
Authors: Ngumar Sutjipto
Published: February 2017

Program pensiun di Indonesia, tidak hanya dinikmati pegawai negeri atau ABRI saja, tetapi karyawan swasta dan pekerja mandiripun dapat menikmati program pensiun melalui Lembaga Dana Pensiun Pemberi Kerja (DPPK) atau Dana Pensiun Lembaga Keuangan (DPLK). DPLK diberikan oleh perusahaan yang mempekerjakan karyawan. DPLK dibentuk bank atau perusahaan asuransi jiwa. Kedua Lembaga Dana Pensiun tersebut didirikan untuk memberikan perlindungan pada karyawan perusahaan atau pekerja mandiri. Lembaga Dana Pensiun dan calon penerima pensiun dapat memilih program pensiun dalam bentuk Program Pensiun Manfaat Pasti (PPMP) atau Program Pensiun Iuran Pasti (PPIP). Akuntansi Dana Pensiun berisi jenis, bentuk dan isi Laporan Keuangan, Pengakuan dan Pelaporan Piutang Jasa Masa Lalu dan Kewajiban Aktuaria, Pengungkapan, dan Penilaian Aktiva.
Quarter-wave short circuit in the application of lightning protection for signal transmission
Authors: Li Xiangchao , Chen Rongxu
Published: February 2017

The purpose of this paper is to solve the problem of coaxial line may suffer the invasion of lightning current during the process of transferring microwave signal, which would damage the electronic equipment and then deteriorate the quality of transmission. First, the theories of transmission line and quarter-wave short circuit are analyzed. Second, by utilizing the simulation tool and vector network analyzer, this paper evaluates the analytical and experimental S21 parameters of protective devices to ensure the normal signal transmission. Finally, the simulated lightning currents generated from combined wave generator (1.2/50 μs, 8/20 μs) are also applied to the impact experiment. The simulation results are summarized as follows: quarter-wave short circuit with wavelength of 1/4λ shows high resistance to the lightning and does not affect the signal transmission; the residual voltage and current positively correlate with the impulse voltage magnifying from 0.2 to 5 kV and are suppressed in low ranges. The proposed method provides effective lightning protection in the application of signal transmission.
Faraday's law of electromagnetic induction in two parallel conductors
Authors: Coufal Oldřich
Published: February 2017

A general model for the calculation of current density in two parallel conductors is proposed. The solution of the model is based on the calculation of magnetic fluxes and on the application of Faraday's law of electromagnetic induction. Magnetic fluxes are determined via magnetic field integration. For this purpose, formulae are given in the Appendix Section for the calculation of the magnetic field produced by an infinitely long conductor the cross section of which is a sector of a ring. The proposed model is used to examine a pair of tubular conductors. The conductors are supplied from a source of sinusoidal voltage in steady state. It is assumed that the voltage frequency does not exceed 1 MHz, and the displacement current is neglected. Solutions to several problems are given. The effect of the resistivity of conductors, their distance and the source frequency on the current density and current in the conductors and on their series impedance is analysed. For the calculation of the inductance of distant tubular conductors very simple and exact formulae are derived, and the transient current in these conductors is described when the voltage source is connected and disconnected.
Improving specialist drug prescribing in primary care using task and error analysis: an observational study
Authors: Chana Narinder , Porat Talya , Whittlesea Cate , Delaney Brendan
Published: February 2017

Background

Electronic prescribing has benefited from computerised clinical decision support systems (CDSSs); however, no published studies have evaluated the potential for a CDSS to support GPs in prescribing specialist drugs.

Aim

To identify potential weaknesses and errors in the existing process of prescribing specialist drugs that could be addressed in the development of a CDSS.

Design and setting

Semi-structured interviews with key informants followed by an observational study involving GPs in the UK.

Method

Twelve key informants were interviewed to investigate the use of CDSSs in the UK. Nine GPs were observed while performing case scenarios depicting requests from hospitals or patients to prescribe a specialist drug. Activity diagrams, hierarchical task analysis, and systematic human error reduction and prediction approach analyses were performed.

Results

The current process of prescribing specialist drugs by GPs is prone to error. Errors of omission due to lack of information were the most common errors, which could potentially result in a GP prescribing a specialist drug that should only be prescribed in hospitals, or prescribing a specialist drug without reference to a shared care protocol. Half of all possible errors in the prescribing process had a high probability of occurrence.

Conclusion

A CDSS supporting GPs during the process of prescribing specialist drugs is needed. This could, first, support the decision making of whether or not to undertake prescribing, and, second, provide drug-specific parameters linked to shared care protocols, which could reduce the errors identified and increase patient safety.
Le nanisme insulaire au Quaternaire
Authors: Guérin Claude
Published: February 2017

Insular dwarfism and Quaternary Mammals.

Insular dwarfism appears to be a general evolution rule for large mammals, as the giantism is for the small ones, but the phenomenon concerns some kind of islands only, and only a small number of Mammalian Families.

Necessary conditions for one island to develop such an insular fauna rely on :

1. a not too long way off nor a too reduced one from the nearest continent, peopling occurring through temporary landbrige, by «sweepstake » and/or by natural rafts ; coastal as well as oceanic islands are hence excluded.

2. never a too small nor a too large surface ; very large geographically continental masses such as South America, Australia, New Guinea, Malagasy and other succeeded in developping equilibrated faunas when isolated.

3. a biological imbalance testimonied by the scarcity or the absence of predatorious mammals and by a poor biodiversity ; individuals may be very numerous but the number of mammalian species is always very low, usually well inferior to ten.

So the dwarfing (and giantism) process is known for the Quaternary Era only in Mediterranean (Balearic Archipelago, Corsica, Sardinia, Maltese Archipelago, Crete, Cyprus, some Aegean Islands), Arctic Ocean (Wrangel Island), Northern Pacific (Northern Chanel Islands in California), Indonesia (Timor, Flores, Sulawesi), Japan and West Indies.

Seven Mammalian families only are involved in dwarfing processes, pertaining to three Orders : Proboscidea (Elephantidae, Stegodontidae) , Artiodactyla (Suidae, Hippopotamidae, Cervidae, Bovidae) and Xenarthra (Megalonychidae) . Among these families, four (Elephantidae, Hippopotamidae, Cervidae and Megalonychidae) are more affected than the other, giving a stature reduction up to one third or one fourth of that of the continental ancestor. Families presenting an insular giantism (some among Rodentia and Insectivora) are limited in number in the same way. Other (all these included in Primates, Carnivora, Lagomorpha) are totally indifferent to any insular environment, and do not show any tendency to reduce nor increase their stature. Lastly, some families (like all the Perissodactyla ones) were never encountered in true insular conditions.

The cause of insular dwarfism phenomenon is not well known : the most classical explanation rests in the supposed advantage of smaller individuals requiring less feeding facing a limited quantity of available food together with a lack of predators. Such an explanation is clearly insufficient in many cases, and further research is necessary for a better understanding of the actually observed facts.
Quatre Lépidoptères gynandromorphes du Sud-Est de la France
Authors: Lentenois Philippe
Published: February 2017

Brève description commentée de quatre Lépidoptères gynandromorphes (deux Pieridae et deux Nymphalidae). Les trois spécimens d'Ardèche ont été collectés dans deux biotopes très voisins.
Deux Maladera (Aserica) Lewis nouvelles d'Anatolie (Coleoptera, Melolonthidae)
Authors: Keith Denis
Published: February 2017

Deux nouvelles Maladera (Aserica ) Lewis sont décrites d'Anatolie méridionale (Turquie) : ollivieri d'Iskenderun et allemandi d'Antalya.
Premier complément à l'inventaire des Rhopalocères du département de la Savoie (Lepidoptera, Nymphalidae, Genre Erebia). Précisions sur les répartitions de Erebia manto, Erebia sudetica, Erebia melampus et Erebia triaria
Authors: Savourey Michel
Published: February 2017

De nombreux observateurs ont transmis à l'auteur des listes de localités où volaient récemment des Erebia en Savoie : elles viennent compléter le premier inventaire publié en 1990. L'auteur précise la répartition cartographiée des espèces E. manto, E. sudetica, E. melampus et E. triaria.
Supplément à l'«Atlas des Coléoptères Scarabéides Laparosticti de France» de J.-P. Lumaret
Authors: Nicolas Jean-Louis
Published: February 2017

Plus d'une centaine de données nouvelles pour 1'«Atlas des Coléoptères Scarabéides Laparosticti de France» de J.-P. Lumaret sont apportées ici dans le but de combler l'apparent vide faunistique de certains départements tels que la Saône-et-Loire.
Description d'une espèce nouvelle de colchique (Colchicum, Liliaceae) en Sardaigne : Colchicum actupii Fridlender
Authors: Fridlender Alain
Published: February 2017

Une révision du genre Colchicum, basée sur de nombreuses prospections de terrain, nous a permis de reconnaître cinq espèces de colchiques en Sardaigne. C. corsicum Baker et C. gonarei Camarda sont endémiques tandis que C. multiflorum Brot. et C. cupanii Guss. sont assez répandus en Méditerranée. Enfin, la cinquième espèce présente en Sardaigne avait été confondue avec le C. lusitanum Brot. Il s'agit, en fait, d'une espèce nouvelle : C. actupii sp. nov.
Quelques aspects du climat de la région Rhône-Alpes
Authors: Blanchet Guy , Richoux Philippe
Published: February 2017

Analyse sous forme de cartes commentées des données climatiques de la région Rhône-Alpes : précipitations annuelles moyennes (1961-1990), fréquences des précipitations annuelles (1946-1995), températures (isothermes de janvier et de juillet).
Fabrication of black-gold coatings by glancing angle deposition with sputtering
Authors: Vitrey Alan , Alvarez Rafael , Palmero Alberto , González María Ujué , García-Martín José Miguel
Published: February 2017

The fabrication of black-gold coatings using sputtering is reported here. Glancing angle deposition with a rotating substrate is needed to obtain vertical nanostructures. Enhanced light absorption is obtained in the samples prepared in the ballistic regime with high tilt angles. Under these conditions the diameter distribution of the nanostructures is centered at about 60 nm and the standard deviation is large enough to obtain black-metal behavior in the visible range.
NMR reaction monitoring in flow synthesis
Authors: Gomez M Victoria , de la Hoz Antonio
Published: February 2017

Recent advances in the use of flow chemistry with in-line and on-line analysis by NMR are presented. The use of macro- and microreactors, coupled with standard and custom made NMR probes involving microcoils, incorporated into high resolution and benchtop NMR instruments is reviewed. Some recent selected applications have been collected, including synthetic applications, the determination of the kinetic and thermodynamic parameters and reaction optimization, even in single experiments and on the μL scale. Finally, software that allows automatic reaction monitoring and optimization is discussed.
Asteroid 1566 Icarus’s Size, Shape, Orbit, and Yarkovsky Drift from Radar Observations
Authors: Greenberg Adam H. , Margot Jean-Luc , Verma Ashok K. , Taylor Patrick A. , Naidu Shantanu P. , Brozovic Marina. , Benner Lance A. M.
Published: February 2017

Near-Earth asteroid (NEA) 1566 Icarus (

, e = 0.83,

) made a close approach to Earth in 2015 June at 22 lunar distances (LD). Its detection during the 1968 approach (16 LD) was the first in the history of asteroid radar astronomy. A subsequent approach in 1996 (40 LD) did not yield radar images. We describe analyses of our 2015 radar observations of Icarus obtained at the Arecibo Observatory and the DSS-14 antenna at Goldstone. These data show that the asteroid is a moderately flattened spheroid with an equivalent diameter of 1.44 km with 18% uncertainties, resolving long-standing questions about the asteroid size. We also solve for Icarus’s spin-axis orientation (

), which is not consistent with the estimates based on the 1968 light-curve observations. Icarus has a strongly specular scattering behavior, among the highest ever measured in asteroid radar observations, and a radar albedo of ∼2%, among the lowest ever measured in asteroid radar observations. The low cross section suggests a high-porosity surface, presumably related to Icarus’s cratering, spin, and thermal histories. Finally, we present the first use of our orbit-determination software for the generation of observational ephemerides, and we demonstrate its ability to determine subtle perturbations on NEA orbits by measuring Icarus’s orbit-averaged drift in semimajor axis (

au My−1, or ∼60 m per revolution). Our Yarkovsky rate measurement resolves a discrepancy between two published rates that did not include the 2015 radar astrometry.
A VLA Search for Radio Signals from M31 and M33
Authors: Gray Robert H. , Mooley Kunal
Published: February 2017

Observing nearby galaxies would facilitate the search for artificial radio signals by sampling several billions of stars simultaneously, but few efforts have been made to exploit this opportunity. An added attraction is that the Milky Way is the second largest member of the Local Group, so our galaxy might be a probable target for hypothetical broadcasters in nearby galaxies. We present the first relatively high spectral resolution (<1 kHz) 21 cm band search for intelligent radio signals of complete galaxies in the Local Group with the Jansky VLA, observing the galaxies M31 (Andromeda) and M33 (Triangulum)—the first and third largest members of the group, respectively—sampling more stars than any prior search of this kind. We used 122 Hz channels over a 1 MHz spectral window in the target galaxy velocity frame of reference, and 15 Hz channels over a 125 kHz window in our local standard of rest. No narrowband signals were detected above a signal-to-noise ratio of 7, suggesting the absence of continuous narrowband flux greater than approximately 0.24 and 1.33 Jy in the respective spectral windows illuminating our part of the Milky Way during our observations in 2014 December and 2015 January. This is also the first study in which the upgraded VLA has been used for SETI.
Spitzer’s View of the Candidate Cluster and Protocluster Catalog (CCPC)
Authors: Franck J. R. , McGaugh S. S.
Published: February 2017

The Candidate Cluster and Protocluster Catalog contains 218 galaxy overdensities composed of more than 2000 galaxies with spectroscopic redshifts spanning the first few Gyr after the Big Bang (2.0 ≤ z < 6.6). We use Spitzer archival data to track the underlying stellar mass of these overdense regions in various temporal cross sections by building rest-frame near-infrared luminosity functions (LFs) across the span of redshifts. This exercise maps the stellar growth of protocluster galaxies, as halos in the densest environments should be the most massive from hierarchical accretion. The characteristic apparent magnitude, m*(z), is relatively flat from 2.0 ≤ z < 6.6, consistent with a passive evolution of an old stellar population. This trend maps smoothly to lower redshift results of cluster galaxies from other works. We find no difference in the LFs of galaxies in the field versus protoclusters at a given redshift apart from their density.
Structural and Photometric Properties of the Andromeda Satellite Dwarf Galaxy Lacerta I from Deep Imaging with WIYN pODI
Authors: Rhode Katherine L. , Crnojević Denija , Sand David J. , Janowiecki Steven , Young Michael D. , Spekkens Kristine
Published: February 2017

We present results from WIYN pODI imaging of Lacerta I (And XXXI), a satellite dwarf galaxy discovered in the outskirts of the Andromeda galaxy (M31) in Pan-STARRS1 survey data. Our deep, wide-field

photometry reaches ∼3 mag fainter than the photometry in the Pan-STARRS1 discovery paper and allows us to trace the stellar population of Lac I beyond two half-light radii from the galaxy center. We measure a Tip of the Red Giant Branch distance for Lac I of

mag (773 ± 40 kpc, or 264 ± 6 kpc from M31), which is consistent with the Pan-STARRS1 distance. We use a maximum-likelihood technique to derive structural properties for the galaxy, and find a half-light radius (r

h
) of 3.24 ± 0.21 arcmin (728 ± 47 pc), ellipticity (

) of 0.44 ± 0.03, total magnitude M

V
 = −11.4 ± 0.3, and central surface brightness

mag arcsec−2. We find no H i emission in archival data and set a limit on Lac I’s neutral gas mass-to-light ratio of

< 0.06

/

, confirming Lac I as a gas-poor dwarf spheroidal galaxy. Photometric metallicities derived from Red Giant Branch stars within 2 r

h
yield a median [Fe/H] of −1.68 ± 0.03, which is more metal-rich than the spectroscopically derived value from Martin et al. Combining our measured magnitude with this higher metallicity estimate places Lac I closer to its expected position on the luminosity–metallicity relation for dwarf galaxies.
Solar Energetic Particle Transport Near a Heliospheric Current Sheet
Authors: Battarbee Markus , Dalla Silvia , Marsh Mike S.
Published: February 2017

Solar energetic particles (SEPs), a major component of space weather, propagate through the interplanetary medium strongly guided by the interplanetary magnetic field (IMF). In this work, we analyze the implications that a flat Heliospheric Current Sheet (HCS) has on proton propagation from SEP release sites to the Earth. We simulate proton propagation by integrating fully 3D trajectories near an analytically defined flat current sheet, collecting comprehensive statistics into histograms, fluence maps, and virtual observer time profiles within an energy range of 1–800 MeV. We show that protons experience significant current sheet drift to distant longitudes, causing time profiles to exhibit multiple components, which are a potential source of confusing interpretations of observations. We find that variation of the current sheet thickness within a realistic parameter range has little effect on particle propagation. We show that the IMF configuration strongly affects the deceleration of protons. We show that in our model, the presence of a flat equatorial HCS in the inner heliosphere limits the crossing of protons into the opposite hemisphere.
A Hard Look at the Neutron Stars and Accretion Disks in 4U 1636-53, GX 17+2, and 4U 1705-44 with NuStar
Authors: Ludlam R. M. , Miller J. M. , Bachetti M. , Barret D. , Bostrom A. C. , Cackett E. M. , Degenaar N. , Salvo T. Di , Natalucci L. , Tomsick J. A. , Paerels F. , Parker M. L.
Published: February 2017

We present NuSTAR observations of neutron star (NS) low-mass X-ray binaries: 4U 1636-53, GX 17+2, and 4U 1705-44. We observed 4U 1636-53 in the hard state, with an Eddington fraction,

, of 0.01; GX 17+2 and 4U 1705-44 were in the soft state with fractions of 0.57 and 0.10, respectively. Each spectrum shows evidence for a relativistically broadened Fe K
α
line. Through accretion disk reflection modeling, we constrain the radius of the inner disk in 4U 1636-53 to be

ISCO (innermost stable circular orbit), assuming a dimensionless spin parameter

, and

ISCO for

(errors quoted at 1σ). This value proves to be model independent. For

and

, for example, 1.08 ± 0.06 ISCO translates to a physical radius of

km, and the NS would have to be smaller than this radius (other outcomes are possible for allowed spin parameters and masses). For GX 17+2,

ISCO for

and

ISCO for

. For

and

,

ISCO translates to

km. The inner accretion disk in 4U 1705-44 may be truncated just above the stellar surface, perhaps by a boundary layer or magnetosphere; reflection models give a radius of 1.46–1.64 ISCO for

and 1.69–1.93 ISCO for

. We discuss the implications our results may have on the equation of state of ultradense, cold matter and our understanding of the innermost accretion flow onto NSs with low surface magnetic fields, and systematic errors related to the reflection models and spacetime metric around less idealized NSs.
First Results from the Hertzsprung SONG Telescope: Asteroseismology of the G5 Subgiant Star μ Herculis*
Authors: Grundahl F. , Andersen M. Fredslund , Christensen-Dalsgaard J. , Antoci V. , Kjeldsen H. , Handberg R. , Houdek G. , Bedding T. R. , Pallé P. L. , Jessen-Hansen J. , Aguirre V. Silva , White T. R. , Frandsen S. , Albrecht S. , Andersen M. I. , Arentoft T. , Brogaard K. , Chaplin W. J. , Harpsøe K. , Jørgensen U. G. , Karovicova I. , Karoff C. , Rasmussen P. Kjærgaard , Lund M. N. , Lundkvist M. Sloth , Skottfelt J. , Norup Sørensen A. , Tronsgaard R. , Weiss E.
Published: February 2017

We report the first asteroseismic results obtained with the Hertzsprung Stellar Observations Network Group Telescope from an extensive high-precision radial-velocity observing campaign of the subgiant μ Herculis. The data set was collected during 215 nights in 2014 and 2015. We detected a total of 49 oscillation modes with l values from zero to three, including some l = 1 mixed modes. Based on the rotational splitting observed in l = 1 modes, we determine a rotational period of 52 days and a stellar inclination angle of 63°. The parameters obtained through modeling of the observed oscillation frequencies agree very well with independent observations and imply a stellar mass between 1.11 and 1.15 M
⊙ and an age of

Gyr. Furthermore, the high-quality data allowed us to determine the acoustic depths of the He ii ionization layer and the base of the convection zone.