bluuebunny/crossref_metadata_2025 huggingface dataset:
Parasitological survey of Polish primitive horses (Equus caballus gmelini Ant.): influence of age, sex and management strategies on the parasite community
Authors: Slivinska K. , Kharchenko V. , Wróblewski Z. , Gawor J. , Kuzmina T.
Published: July 2016

An extensive analysis of the relationship between age, sex, and different types of management strategies relative to the gastrointestinal parasite community of Polish primitive horses was performed on 124 horses maintained in nine farms from four regions of Poland. The horses (96 females and 28 males) were housed in three types of management strategies: stabled (ST), free-ranging (FR) and semi-free (SF). These horses also were divided into three age groups: <3 years, 3 – 10 years and >10 years old. The gastrointestinal parasites were collected following deworming of all horses with anthelmintics containing the macrocyclic lactones and praziquantel. Totally, 66,192 parasite specimens were collected and identified. The analysis of dependence of horse infection with intestinal nematodes using sex, age and management strategies demonstrated that females had significantly heavier infections of strongylids. Young horses (<3 years old) had higher infections of Parascaris equorum and Strongyloides westeri. Free ranging horses were more infected with strongylids, Oxyuris equi and Gasterophilus intestinalis. Thirty-five nematode species, one cestode and one species of the botfly larvae of Gasterophilus were found. Diagnostic deworming examination revealed presence of Parascaris equorum in 27.4 %, Oxyuris equi in 38.7 %, Habronema muscae in 16.9 %, Anoplocephala perfoliata in 42.7 % and Gasterophilus intestinalis in 46.8% in the Polish primitive horses examined. Strongyloides westeri presence was confirmed only by fecal samples examination; threadworms were not observed in these horses after deworming. In the strongylid community, 31 species (6 of subfamily Strongylinae and 25 of Cyathostominae) were found. Significant differences in prevalence of separate strongylid species, or their proportions in the communities were not observed between females and males, or between age groups (p > 0.05). The highest species diversity (n=30 or 31) was observed in the FR horses, the lowest (n=15) – in ST horses. The FR horses had higher prevalence and proportion of large strongyles in the community, in comparison to SF or ST horses (p < 0.05).
Crenosoma vulpisinfection in a four-month old puppy
Authors: Matos B. , Colella V. , Alho A. M. , Otranto D. , Doyle R. , Madeira de Carvalho L.
Published: July 2016

Here we report the case of a diagnostic and treatment challenge in a four-month old dog from England, presented with one-month history of unproductive cough. Antigen blood test forAngiostrongylus vasoruminfection was negative. Thoracic radiographs revealed a generalised bronchointerstitial pattern and bronchoscopy showed moving nematodes in the mucus of the bronchial wall. Additionally, Baermann technique revealed a high burden of larvae per gram of faeces. Morphological and molecular analyses confirmed that they were first stage larvae ofCrenosoma vulpis. The infection was firstly treated with a spot-on solution containing 10% imidacloprid + 2.5% moxidectin, but the dog was still positive after 13 days. Therefore, a seven-day course of fenbendazole was prescribed. This represents one of the youngest dogs ever reported naturally infected byC. vulpis. The scant number of reported cases of crenosomosis has led practitioners to consider it as a rare parasitic disease in dogs, delaying a correct and targeted on-time diagnosis. Further studies are needed to perceive the real prevalence of this lungworm and to understand if it is a rare parasite or just rarely diagnosed.
The fetal brain: role of progesterone and allopregnanolone
Authors: Pluchino Nicola , Russo Marinella , Genazzani Andrea R.
Published: July 2016

Progesterone and allopregnanolone have crucial and different roles in brain development, function and recovery after injury. Pregnancy is characterized by an increased synthesis of progesterone and its neuro-active metabolites by the placenta, maternal and fetal brain. This supports the critical role of these steroids in maternal brain adaptation during pregnancy and development of the fetal brain. Moreover, allopregnanolone may play a brain-protective role during complications of pregnancy, complications of pregnancy, such as preterm delivery or intrauterine growth restriction (IUGR), by reducing the impact of hypoxia and excitotoxic brain damage or impairment myelination. Behavioral consequences of altered progesterone/allopregnanolone fetal brain programming have also been hypothesized, although further evidence is needed. New potential applications of allopregnanolone as a treatment strategy have also been proposed, addressing unmet clinical needs in perinatal care.
Student Perceptions about the Influence of a Perioperative Nursing Elective on Career Preferences
Authors: Schmidt Nola A. , Brown Janet M. , Holmes Linda
Published: July 2016

It has been suggested that offering perioperative nursing courses will increase the number of nurses and new graduates who enter the perioperative area. There is little research to support that students’ career choices are influenced by immersion in perioperative content. The purpose of this qualitative study was to describe student perceptions of perioperative nursing as a career option following completion of an elective in perioperative nursing. Two focus groups were held involving students (N=19) who completed the course. One hour sessions were audio taped as students described their perceptions about perioperative nursing. Tapes were transcribed verbatim and analysed for themes. Four themes were identified: 1) opening their eyes: career advantages, 2) being captive: career disadvantages, 3) paradox unrecognized, and 4) I’ll be a better nurse. Although students were not persuaded to alter their primary employment intentions, they acknowledged the possibility of a future career in the perioperative area.
Capacity Improvement of a Free Space Optical Satellite Uplink using Transmitter Power and Rate Adaptation
Authors: Gopal Pooja , Jain V. K. , Kar Subrat
Published: July 2016

Degradation due to atmospheric turbulence leads to significant outage in a free space optical satellite uplink with fixed transmitter parameters. If the channel state is known at the transmitter, then its parameters can be suitably changed, and there could be a considerable improvement in channel capacity. However, the extremely long link length of an Earth-to-Geostationary Earth Orbit (GEO) satellite link would render feedback of channel state from the receiver infeasible, before the channel changes. In this paper, a channel pre-estimation method at the transmitter is proposed, and the expression for capacity with transmitter power and rate adaptation is derived. The results are compared with that of the capacity with outage. It is observed that there can be an improvement by a factor of 1.66 in achievable average capacity per Hertz with the adaptive transmitter. Also, the outage probability is reduced from 18.02 % to almost 0.
Prenatal decision-making in the second and third trimester in trisomy 21-affected pregnancies
Authors: Weichert Alexander , Braun Thorsten , Deutinger Christine , Henrich Wolfgang , Kalache Karim D. , Neymeyer Joerg
Published: July 2016

Down syndrome (DS) is the most common chromosome abnormality among live-born infants and the most frequent genetic cause of intellectual disability. The majority of pregnancies affected by DS are terminated. The decision concerning whether or not to continue a pregnancy following the prenatal diagnosis of DS is complex and amongst others, motivated by attitudes towards termination, socioeconomic factors, and ultrasound findings. In Germany, termination of pregnancy (TOP) is a legal option, even during the later stages of gestation. The aim of the present study was to evaluate the pregnancy outcomes as well as possible factors that influence the decisions made by women with trisomy 21-affected pregnancies. In our study 112 pregnancies affected by trisomy 21 were included. Our data confirm that most patients are more likely to terminate a trisomy 21-affected pregnancy [76 (67.9%) vs. 36 (32.1%) continued pregnancies]. Beyond that we found that women who continued their pregnancy tended to be at an advanced stage in their pregnancy at the time of karyotyping. With regards to factors from their medical history as well as sonographic findings there was no identifiable single factor that could distinguish between women that opted to continue or terminate their pregnancy.
Testing for a Change in Mean under Fractional Integration
Authors: Iacone Fabrizio , Leybourne Stephen J. , Robert Taylor A.M.
Published: July 2016

We consider testing for the presence of a change in mean, at an unknown point in the sample, in data that are possibly fractionally integrated, and of unknown order. This testing problem has recently been considered in a number of papers, most notably Shao (2011, “A Simple Test of Changes in Mean in the Possible Presence of Long-Range Dependence.” Journal of Time Series Analysis 32:598–606) and Iacone, Leybourne, and Taylor (2013b, “A Fixed-b Test for a Break in Level at an Unknown Time under Fractional Integration.” Journal of Time Series Analysis 35:40–54) who employ Wald-type statistics based on OLS estimation and rely on a self-normalization to overcome the fact that the standard Wald statistic does not have a well-defined limiting distribution across different values of the memory parameter. Here, we consider an alternative approach that uses the standard Wald statistic but is based on quasi-GLS estimation to control for the effect of the memory parameter. We show that this approach leads to significant improvements in asymptotic local power.
Language policy and governmentality in businesses in Wales: a continuum of empowerment and regulation
Authors: Barakos Elisabeth
Published: July 2016

In this paper, I examine how language policy acts as a means of both empowering the Welsh language and the minority language worker and as a means of exerting power over them. For this purpose, the study focuses on a particular site: private sector businesses in Wales. Therein, I trace two major discursive processes: first, the Welsh Government’s national language policy documents that promote corporate bilingualism and bilingual employees as value-added resources; second, the practice and discourse of company managers who sustain or appropriate such promotional discourses for creating and promoting their own organisational values. By drawing on concepts from governmentality, critical language policy and discourse studies, I show that promoting bilingualism in business is characterised by local and global governmentalities. These not only bring about critical shifts in valuing language as symbolic entities attached to ethnonational concerns or as promotional objects that bring material gain. Language governmentalities also appear to shape new forms of ‘languaging’ the minority language worker as self-governing, and yet, governed subjects who are ultimately made responsible for ‘owning’ Welsh.
Torsional vibration of functionally graded carbon nanotube reinforced conical shells
Authors: Kiani Yaser
Published: July 2016

The present study deals with the free torsional vibration of a composite conical shell made of a polymeric matrix reinforced with carbon nanotubes (CNTs). Distribution of CNTs across the thickness of the conical shell may be uniform or functionally graded. Five different cases of functionally graded reinforcements are considered. First-order shear deformable shell theory compatible with the Donnell kinematic assumptions is used to establish the motion equations of the shell. These equations are two coupled equations which should be treated as an eigenvalue problem. The generalized differential quadrature method is used to obtain a numerical solution for the torsional frequency parameters and the associated mode shapes of the shell. After validating the results of this study for the cases of isotropic homogeneous cone and annular plates, parametric studies are carried out to analyze the influences of geometrical characteristics of the shell, volume fraction of CNTs, and grading profile of the CNTs. It is shown that volume fraction of CNTs is an important factor with regard to torsional frequencies of the shell; however, grading profile does not change the torsional frequencies significantly.
Sight and Seeing in Herodotus
Authors: Miltsios Nikos
Published: July 2016

The theme of sight and vision is particularly pronounced throughout the
Remarks on the citations of authors and works in ancient scholarship
Authors: Montanari Franco
Published: July 2016

The abundance of citations of literary texts in erudite works originating from commentaries written by the philologists of the Hellenistic-Roman age is a highly important testimony of the exegetical activity of ancient scholars and the depth of their literary knowledge. Although a correct assessment of the proportions of this phenomenon is made difficult by the loss of a vast amount of erudite sources and quotations of passages during the transmission process, the importance of citations is crucial in order to properly appreciate the level achieved by ancient philology and its significance as a historical-cultural phenomenon.
A Musical Note from Roman Cyprus
Authors: Hussein Ersin , Raffa Massimo
Published: July 2016

In antiquity, the Sanctuary of Aphrodite Paphia at Palaipaphos was Cyprus’ most celebrated religious space. The high number of Hellenistic and Roman inscriptions discovered at the sanctuary reveals that it was an important environment for the celebration of the island’s rulers, high profile visitors, and its local elite. While the accompanying statues of these inscriptions, or the structures that they may have been fixed to, do not survive, their texts point to the visually impressive character of the sanctuary. This article will present new readings of two inscriptions discovered at this sanctuary which commemorate the poet Lucius Septimius Nestor of Laranda and a certain Sergia Aurelia Regina. The relationship between poet and benefactress, as it appears from the two inscriptions, is to be placed beyond doubt in the framework of female euergetism in the Eastern provinces of the Roman Empire, during the second to third centuries AD. This study will reconsider the musical pun occurring in an inscription set up by Regina to honour Nestor as it sheds some new light on the nature of this relationship and may account for some puzzling features of the inscription, such as the self-celebrating tone in which Regina speaks of herself and the title of
Re-Educating Jet-Engine-Researchers to Stay Relevant
Authors: Gal-Or Benjamin
Published: July 2016

, jet-engine researchers, designers and operators should follow changing uses of small and large jet engines, especially those anticipated to be used by/in the next generation,

In addition, some diminishing returns from isolated, non-integrating, jet-engine component studies, vs. relevant, supersonic, shock waves control in

The central roles of the jet engine as primary or backup flight controller also constitute key relevant issues, especially under post stall conditions involving induced engine-stress while participating in crash prevention or minimal path-time maneuvers to target. [

are anticipated to overcome US legislation red-tape that obstructs JES-add-on-emergency-kits-use. [
Blocking mammalian target of rapamycin (mTOR) improves neuropathic pain evoked by spinal cord injury
Authors: Wang Xiaoping , Li Xiaojia , Huang Bin , Ma Shuai
Published: July 2016

Spinal cord injury (SCI) is an extremely serious type of physical trauma observed in clinics. Neuropathic pain resulting from SCI has a lasting and significant impact on most aspects of daily life. Thus, a better understanding of the molecular pathways responsible for the cause of neuropathic pain observed in SCI is important to develop effective therapeutic agents and treatment strategies. Mammalian target of rapamycin (mTOR) is a serine/threonine protein kinase that is well known for its critical roles in regulating protein synthesis and growth. Furthermore, compelling evidence supports the notion that widespread dysregulation of mTOR and its downstream pathways are involved in neuropathic pain. Thus, in this study we specifically examined the underlying mechanisms by which mTOR and its signaling pathways are involved in SCI-evoked neuropathic pain in a rat model. Overall, we demonstrated that SCI increased the protein expression of p-mTOR, and mTORmediated- phosphorylation of 4E–binding protein 4 (4E-BP1) and p70 ribosomal S6 protein kinase 1 (S6K1) in the superficial dorsal horn of the spinal cord. Also, we showed that blocking spinal mTOR by intrathecal injection of rapamycin significantly inhibited pain responses induced by mechanical and thermal stimulation. In addition, blocking spinal phosphatidylinositide 3-kinase (p-PI3K) pathway significantly attenuated activities of p-mTOR pathways as well as mechanical and thermal hyperalgesia in SCI rats. Moreover, blocking mTOR and PI3K decreased the enhanced levels of substance P and calcitonin gene-related peptide (CGRP) in the dorsal horn of SCI rats. We revealed specific signaling pathways leading to SCI-evoked neuropathic pain, including the activation of PI3K, mTOR and its downstream signaling pathways. Targeting one or more of these signaling molecules may present new opportunities for treatment and management of neuropathic pain often observed in patients with SCI.
Criticising Einstein: Science, Politics, and International Relations during the Chinese Cultural Revolution
Authors: Sato Yuko
Published: July 2016

In China during the Cultural Revolution (CR), physicist Albert Einstein became one of the main targets of criticism. Why did China criticise him, while it was developing nuclear weapons based on his theories? This article argues that basic research in China then was entangled in power struggle which contained a controversy over China’s handling of intellectuals and its conception of the West. Even during the CR, however, scientists’ struggle for building a high-energy accelerator continued. Zhou Enlai supported it for his own power struggle as well as China’s nuclear development. The Lin Biao incident and the Sino-US rapprochement provided Zhou and his group opportunities to undermine the CR’s logic. Thus, this article argues that rebuilding of basic research in China was intertwined with both domestic and international politics.
Wege und Abwege. Zu den Metaphern in der ramessidischen Weisheitsliteratur
Authors: Di Biase-Dyson Camilla
Published: July 2016

This study analyses a series of New Kingdom wisdom texts in order to outline the rhetorical power of spatial metaphors, particularly metaphors of path. Firstly we differentiate those metaphors that explicitly mention a path from those that refer in a more implicit manner to some kind of path and its concomitant features. What we find is that path-based metaphors (particularly implicit ones) become more numerous as the rhetorical weight of the text increases – when, in other words, the more enumerative wisdom text genre takes on characteristics of the exhortations of scribal school texts. Additionally, the multidimensional methodology allows one to note connections between metaphors that occur within a single text, as well as to trace similar features in texts of the same genre and of different genres.
The Funerary Ensemble of Nairis in the Hermitage Museum
Authors: Meffre R. , Nikolaev A.N.
Published: July 2016

Publication of a funerary ensemble brought back from Egypt in 1827 by Anastasios Averoff and now kept in the Hermitage museum, Saint Petersburg. It comprises an outer coffin and a cartonnage pertaining to a woman named Nairis, who lived in the Theban area at the end of the Libyan Period. She may be identified with the mother of a maid, known through her coffin and her funerary stele, both items dated to the 25th Dynasty.
Reuniting Philology and Archaeology: The “Emic” and “Etic” in the Letter of the Dead Qau Bowl UC16163 and its Context
Authors: Miniaci Gianluca
Published: July 2016

The present article aims to combine an accurate philological analysis of the letter to the dead UC16163 and its archaeological context. The letter is a double document containing two letters addressed by Shepsi to both his dead parents (Iinkhenmut and Iy). In fact, the letter was found in an undisturbed tomb, no. 7695, in the necropolis of Qau, where only a single male deceased lay in the funerary chamber, with no evidence/traces of any further interment or later disturbance. According to the text of the letter, one would expect two internments inside the tomb, Shepsi’s father and mother. The discrepancy between the content of the letter and the archaeological evidence is remarkable. However, the new philological reading here proposed sheds new light on the role of Shepsi’s brother, Sobekhotep, switching his role from the dangerous, as previously interpreted, to simply negligent dead. Sobekhotep is the prime element in both texts and he is the last person to have died in Shepsi’s family, as in many points evident in the two letters. The particular emphasis of the episode of the funeral/burial of Sobekhotep reveals that Shepsi is addressing directly to his brother. The new interpretation of the text seems to support the idea that the deceased found together with the bowl in Qau tomb 7695 is Sobekhotep himself.
First-Principles Study of Lattice Dynamics, Structural Phase Transition, and Thermodynamic Properties of Barium Titanate
Authors: Zhang Huai-Yong , Zeng Zhao-Yi , Zhao Ying-Qin , Lu Qing , Cheng Yan
Published: July 2016

Lattice dynamics, structural phase transition, and the thermodynamic properties of barium titanate (BaTiO3) are investigated by using first-principles calculations within the density functional theory (DFT). It is found that the GGA-WC exchange-correlation functional can produce better results. The imaginary frequencies that indicate structural instability are observed for the cubic, tetragonal, and orthorhombic phases of BaTiO3 and no imaginary frequencies emerge in the rhombohedral phase. By examining the partial phonon density of states (PDOSs), we find that the main contribution to the imaginary frequencies is the distortions of the perovskite cage (Ti-O). On the basis of the site-symmetry consideration and group theory, we give the comparative phonon symmetry analysis in four phases, which is useful to analyze the role of different atomic displacements in the vibrational modes of different symmetry. The calculated optical phonon frequencies at Γ point for the four phases are in good agreement with other theoretical and experimental data. The pressure-induced phase transition of BaTiO3 among four phases and the thermodynamic properties of BaTiO3 in rhombohedral phase have been investigated within the quasi-harmonic approximation (QHA). The sequence of the pressure-induced phase transition is rhombohedral→orthorhombic→tetragonal→cubic, and the corresponding transition pressure is 5.17, 5.92, 6.65 GPa, respectively. At zero pressure, the thermal expansion coefficient α

V
, heat capacity C

V
, Grüneisen parameter γ, and bulk modulus B of the rhombohedral phase BaTiO3 are estimated from 0 K to 200 K.
Comunicación política
Authors: Vargas Delgado José Jesús
Published: July 2016

COMUNICACIÓN POLÍTICABeatriz Peña AcuñaEditorial ACCI, Madrid, 2016
La influencia de los blogs de moda en el comportamiento del consumidor. Un enfoque exploratorio / The influence of blogs in fashion in consumer behavior: an exploratory approach
Authors: Martinez Navarro Gema , De Garcillán López-Rúa Mencía
Published: July 2016

Es una realidad que la moda es un fenómeno social y cultural con importante repercusión en la economía. El mercado de la moda se ha visto enormemente afectado por la introducción de nuevas formas de consumo a raíz del boom tecnológico acontecido en los últimos años y que ha cambiado tanto, la forma de comprar, como la forma de pensar de los consumidores. El presente trabajo de investigación se centra en estudiar cómo ha influido la aparición de los blogs de moda en el comportamiento del consumidor de moda y en concreto, si el proceso de decisión de compra de los productos de moda se ha visto alterado y cuáles han sido las variables del comportamiento del consumidor que se han visto más influenciadas por el uso de esta nueva herramienta y de qué forma. El planteamiento metodológico seguido en esta investigación está basado en un enfoque exploratorio o cualitativo. A través de entrevistas individuales y reuniones de grupo, se ha estudiado en profundidad la opinión de consumidoras de moda en relación al objeto de estudio.
LSPS/Optogenetics to Improve Synaptic Connectivity Mapping: Unmasking the Role of Basket Cell-Mediated Feedforward Inhibition
Authors: Brill Julia , Mattis Joanna , Deisseroth Karl , Huguenard John R.
Published: July 2016

Neocortical pyramidal cells (PYRs) receive synaptic inputs from many types of GABAergic interneurons. Connections between parvalbumin (PV)-positive, fast-spiking interneurons (“PV cells”) and PYRs are characterized by perisomatic synapses and high-amplitude, short-latency IPSCs. Here, we present novel methods to study the functional influence of PV cells on layer 5 PYRs using optogenetics combined with laser-scanning photostimulation (LSPS). First, we examined the strength and spatial distribution of PV-to-PYR inputs. To that end, the fast channelrhodopsin variant AAV5-EF1α-DIO-hChR2(E123T)-eYFP (ChETA) was expressed in PV cells in somatosensory cortex of mice using an adeno-associated virus-based viral construct. Focal blue illumination (100–150 µm half-width) was directed through the microscope objective to excite PV cells along a spatial grid covering layers 2–6, while IPSCs were recorded in layer 5 PYRs. The resulting optogenetic input maps showed evoked PV cell inputs originating from an ∼500-μm-diameter area surrounding the recorded PYR. Evoked IPSCs had the short-latency/high-amplitude characteristic of PV cell inputs. Second, we investigated how PV cell activity modulates PYR output in response to synaptic excitation. We expressed halorhodopsin (eNpHR3.0) in PV cells using the same strategy as for ChETA. Yellow illumination hyperpolarized eNpHR3.0-expressing PV cells, effectively preventing action potential generation and thus decreasing the inhibition of downstream targets. Synaptic input maps onto layer 5 PYRs were acquired using standard glutamate-photolysis LSPS either with or without full-field yellow illumination to silence PV cells. The resulting IPSC input maps selectively lacked short-latency perisomatic inputs, while EPSC input maps showed increased connectivity, particularly from upper layers. This indicates that glutamate uncaging LSPS-based excitatory synaptic maps will consistently underestimate connectivity.
T3 enhances Ang2 in rat aorta in myocardial I/R: comparison with left ventricle
Authors: Sabatino Laura , Kusmic Claudia , Nicolini Giuseppina , Amato Rosario , Casini Giovanni , Iervasi Giorgio , Balzan Silvana
Published: July 2016

Angiogenesis is important for recovery after tissue damage in myocardial ischemia/reperfusion, and tri-iodothyronine (T3) has documented effects on angiogenesis. The angiopoietins 1/2 and tyrosine kinase receptor represent an essential system in angiogenesis controlling endothelial cell survival and vascular maturation. Recently, in a 3-day ischemia/reperfusion rat model, the infusion of a low dose of T3 improved the post-ischemic recovery of cardiac function.

Adopting this model, our study aimed to investigate the effects of T3 on the capillary index and the expression of angiogenic genes as the angiopoietins 1/2 and tyrosine kinase receptor system, in the thoracic aorta and in the left ventricle. In the thoracic aorta, T3 infusion significantly improved the angiogenic sprouting and angiopoietin 2 expression. Instead, Sham-T3 group did not show any significant increment of capillary density and angiopoietin 2 expression. In the area at risk (AAR) of the left ventricle, T3 infusion did not increase capillary density but restored levels of angiopoietin 1, which were reduced in I/R group. Angiopoietin 2 levels were similar to Sham group and unchanged by T3 administration. In the remote zone, T3 induced a significant increment of both angiopoietin 1/2. In conclusion, T3 infusion induced a different response of angiopoietin 1/2 between the ventricle (the AAR and the remote zone) and the thoracic aorta, probably reflecting the different action of angiopoietin 1/2 in cardiomyocytes and endothelial cells. Overall, these data suggest a new aspect of T3-mediated cardioprotection through angiogenesis.
Seroprevalencia de Leptospira spp. en ganado bovino lechero de la región Huetar Norte de Costa Rica
Authors: Sequeira Soto Jorge , Valverde Jiménez María De los Ángeles , Araya Sánchez Luis Nazario , Sequeira Avalos José Alfredo , Oviedo Manrique
Published: July 2016

Se realizó un estudio transversal, en la región Huetar Norte de Costa Rica, para determinar la seropositividad a Leptospira spp en ganado bovino lechero (2010-2012). Esta región presenta alta incidencia de la infección en humanos.  Es la de mayor producción lechera en el país. Se procesó 2375 muestras de suero por la técnica del microaglutinación (MAT), correspondientes a 36 fincas lecheras asociadas a la Cooperativa de Productores de Leche Dos Pinos. La seroprevalencia global detectada, al considerar como positivos aquellos títulos mayores a 1:160, fue de 9.13%, observándose títulos de hasta 1:5120 en animales clínicamente sanos. El comportamiento, entre fincas, fue heterogéneo, detectándose porcentajes de positividad entre 0-25% en los animales analizados. Los serogrupos, más frecuentemente identificados, correspondieron a Pomona (15.7%), Tarassovi (16.6%) y Hebdomadis (25.8%). Se detectó una asociación, estadísticamente significativa (p<0.05) con serogrupos asociados a algunas de las fincas muestreadas. De igual manera, las fuentes de agua utilizadas por las fincas presentaron asociación estadística (p< 0.05) con la positividad hacia Leptospira spp. Esta asociación no se identificó para la edad o la raza del animal (p>0.05).
Computing the Hermitian Positive Definite Solutions of a Nonlinear Matrix Equation
Authors: Minghui Wang  , Luping Xu
Published: July 2016

In this paper, we consider a nonlinear matrix equation. We propose necessary and sufficient conditions for the existence of Hermitian positive definite solutions. Some necessary conditions and sufficient conditions for the existence of Hermitian positive definite solutions of this equation is also derived. Based on the Banach fixed point theorem, the existence and the uniqueness of the Hermitian positive definite solution are studied. An iterative method for obtaining the Hermitian positive definite solution of this equation is proposed. Finally, some numerical examples are presented to illustrate the performance and efficiency of the proposed algorithm.
Mode-I Crack Problem in Generalized Thermo-microstretch with Harmonic Wave under Three Theories
Authors: Khaled Lotfy Al-Azab
Published: July 2016

A general model of the equations of generalized thermo-microstretch for an infinite space weakened by a finite linear opening Mode-I crack are solving. The material is homogeneous isotropic elastic half space. The crack is subjected to prescribed temperature and stress distribution. The formulation is applied to generalized thermoelasticity theories, using mathematical analysis with the purview of the Lord-Åžhulman (LS involving one relaxation time) and Green-Lindsay (GL includes two relaxation times) theories with respect to the classical dynamical coupled theory (CD). The harmonic wave method has been used to getting the exact expression of Normal displacement, Normal stress force, couple stresses, microstress and temperature distribution. The variations of the considered fields with the horizontal distance are explained graphically. A comparison also is made between the three theories and for different depths.
Cosmopolitan landhopper Talitroides topitotum (Crustacea, Amphipoda, Talitridae) in Java, Indonesia
Authors: Daneliya Mikhail E. , Wowor Daisy
Published: July 2016

The native land and freshwater amphipod fauna of Indonesia is little known. Meanwhile, the readily human-dispersed talitrid amphipod Talitroides topitotum (Burt, 1934), reported to have displaced native landhoppers in certain parts of the world, is found for the first time in the Indonesian Archipelago. Specimens were collected in a small drainage channel in the Cibodas Botanical Gargens, Java. The material is described in detail and illustrated herein.
Elastic properties and electronic structure of the Ni3Sb (cF16) intermetallic
Authors: Deluque Críspulo E. , Ramos Susana B. , Fernández Armando J.
Published: July 2016

The possibilities of Ni as contact material in electronic applications has motivated the interest on the intermetallic phases of the Ni-Sb system, in relation to their use in lead free micro-soldering processes. In this work, a detailed theoretical study of the cohesive and thermodynamic properties of the compound Ni3Sb in the (cF16) Fm-3m structure is reported. To this aim, the Full Potential Linearized Augmented Plane Waves method, within the framework of the Density Functional Theory and both Generalized Gradient and Local Density approximations, has been applied. The structural parameters, cohesive and elastic properties of this compound and its constituent elements have been determined. In particular, the equilibrium structural properties are determined through the minimization of the energy, including the full relaxation of the internal degrees of freedom of the cell. It is shown that the calculated properties agree well with the available experimental data. Moreover, various contributions to the electronic density of sates are studied. On this basis, a discussion is presented of the bonding characteristics of this compound, in the framework of the current ideas about cohesion in p-d bonded intermetallics.
Nanostructured LB films developed from poly(p-acryloylaminophenylmethylphosphonic) acid
Authors: Lazo-Jiménez Rosa E. , Chávez-Carvayar José A. , Herrera-González Ana M. , Islas-Pérez Valentin , Carreón-Castro María P.
Published: July 2016

In this paper, the formation of Langmuir-Blodgett films of poly(p-acryloylaminophenylmethylphosphonic) acid polymers, with general formula (C10H12NPO4)n are reported. The Langmuir-Blodgett (LB) technique was used for building ordered nanostructures in molecular assemblies of these polymers, which were able to form stable films. At the air-water interface, these polymers (with low and high molecular weight) formed Langmuir (L) monolayers, which were characterized by surface pressure versus molecular area (π-A) isotherms and Brewster´s Angle Microscopy (BAM). Using the LB method, molecular mono and multilayer films of these polymers were prepared and transferred onto glass substrates forming Z-type multilayers, with a transfer ratio close to unity. These LB films were characterized by Atomic Force Microscopy (AFM).
Superficial and electrical characterization of thin films based on Chitosan/polypyrrole/MWCNT
Authors: Olarte-Paredes A. , Salgado-Delgado R. , Salgado-Delgado A. M. , Rubio-Rosas E. , García-Hernández E. , Vargas-Galarza Z.
Published: July 2016

In recent decades conducting polymers have attracted attention due to their promising and versatile applications in different fields. There is a considerable interest in the application of nanotubes multilayer carbon (MWCNT) because of their unique structure, high electrical conductivity, high chemical stability, and high surface-to-volume ratio. These properties make MWCNT extremely attractive for fabricating sensors. Composites based on a matrix of a biopolymer such as the chitosan (CS) with a lot of conductive polymers or (MWCNT), have received increasing attention due to their attractive structural, mechanical and electrical properties that could have applications in different fields such as tissue engineering, biomedicine, and manufacture of sensors and biosensors. Have been reported conducting polymer composites with an extensive range of interesting mechanical and electrical properties, which is reported in this paper to obtain films by ultrasonic bath mixing of Chitosan 3% w/v using polypyrrole (PPy) and multilayer carbon nanotubes. Surface characterization was performed using scanning electron microscopy (SEM). The electrical properties were analyzed using electrochemical impedance spectroscopy (EIS) in a frequency range 0.01 - 10E+5 Hz to 10 mV AC. The results show that the films of CS/PPy/MWCNT have a homogeneous distribution where the chitosan envelops the loads, while for EIS retention load was observed within the matrix observing these materials in accordance with the equivalent circuit of Warburg showing diffusional process.
Christopher A. Scales. 2012. Recording Culture: Powwow Music and the Aboriginal Recording Industry
Authors: Chong Carolyn
Published: July 2016

Christopher A. Scales. 2012. Recording Culture: Powwow Music and the Aboriginal Recording Industry. Durham, NC: Duke University Press. 368pp. ISBN 978-0-8223-5338-6 (pbk)
Gender, Popular Music and Australian Identity
Authors: Strong Catherine
Published: July 2016

This introduction gives an overview of the limited literature that is available on the subject of gender and popular music in the Australian context. Despite demonstrable ongoing gender disparity in the Australian music industry, very little academic attention has been paid to this issue. This special edition aims to at least partly address this gap. This opening article introduces the texts for the special issue, and places them into a framework that will demonstrate the relevance and importance of the special issue in terms of finding space for the debates on gender in this field.
Sophisticated Lady
Authors: Istvandity Lauren
Published: July 2016

Like many popular music genres, jazz has historically been dominated by male figures, while female musicians, despite their contributions, are often overlooked. This article takes for its focus female vocalists, arguing that they frequently face compounded issues of discrimination based on gender. Contextualized in the jazz scene of Brisbane, Australia, the author describes a situation in which, reflective of historic practices, women are generally not taken as seriously as men. Further to this, vocalists, who in this scene are more likely to be female, are often compared negatively to instrumentalists in terms of knowledge and application of jazz theory and musicianship. As a result, female vocalists are ensnared by their gender and may have difficulty building a profile as respected musicians. Using autoethnographic methods, the author explores how vocalists need to carefully manage their performance of gender through a fluid approach to expressions of femininity, dependent on their performance for an audience or for other musicians.
“Don’t Worry, it’s Just a Girl!”
Authors: Gunn Rachael
Published: July 2016

In this article, I analyse how bodily potential is culturally regulated in Sydney's breakdancing (breaking) scene through drawing both on my breakdancing practice and interviews conducted with prominent figures in this scene. I critically examine my lived experiences as one of only a few female breakdancers ("b-girls") in Sydney through analytic autoethnography, and use the theoretical tools of Deleuze and Guattari to unpack and challenge normative gendered narratives. With breakdancing culturally inscribed as masculine ("b-boying") and its conventions interlocking with broader patriarchal restrictions that inhibit female participation and bodily expression, I argue that the Sydney breaking scene is both a site of transgression and regression for the female body. This paradox confronting the b-girl sees her participation as "othered", while also challenging normative assumptions of gender. Through situating specific practices of breaking within broader Australian culture and gender norms, I examine how the performances of b girls and b-boys in Australia disrupt the stability of binary logic on which the organization of bodies is so heavily reliant and, in doing so, allow for the experience of breaking as a site of "pure" difference.
TÍNH TOÁN KHẢ NĂNG TIẾP NHẬN CHẤT Ô NHIỄM CỦA ĐẦM THỊ NẠI (TỈNH BÌNH ĐỊNH)
Authors: Trang Cao Thi Thu , Vinh Vu Duy
Published: July 2016

Dựa trên các số liệu khảo sát về chất lượng nước tại đầm Thị Nại mùa mưa (tháng 10/2013) và mùa khô (tháng 5/2014), các tài liệu thu thập về điều kiện tự nhiên, kinh tế - xã hội ven đầm và các tiêu chuẩn môi trường, đã tính toán khả năng tiếp nhận các chất ô nhiễm trong đầm thông qua sử dụng mô hình Delft3D. Kết quả tính cho thấy, hiện tại đầm Thị Nại không còn khả năng tiếp nhận amoni, nitrat. Tới năm 2025, ngoài 2 thông số này đầm Thị Nại sẽ không còn khả năng tiếp nhận phosphat. Ngoài ra, khả năng tiếp nhận của đầm sẽ giảm đi đối với hầu hết các thông số (3,44%, 1,84%, 0,02%, 12,18%, 0,46% đối với COD, Cu, Pb, Zn và As, tương ứng), trong khi khả năng tiếp nhận BOD5 và vật lơ lửng tăng lên. Liên quan đến các kim loại nặng, khả năng tiếp nhận của đầm cũng giảm đi nhiều nhất là Zn (12,18%).
MỘT SỐ ĐẶC ĐIỂM SINH HỌC SINH SẢN CỦA LOÀI MÓNG TAY SOLEN THACHI COSEL, 2002 Ở ĐẦM THUỶ TRIỀU, KHÁNH HOÀ
Authors: Hoang Do Huu , Tuyen Hua Thai
Published: July 2016

Bài viết trình bày một số kết quả nghiên cứu đặc điểm sinh học sinh sản của loài móng tay Solen thachi Cosel, 2002 là loài có giá trị kinh tế ở đầm Thủy Triều, góp phần cung cấp cơ sở khoa học cho việc quản lý khai thác loài móng tay một cách hiệu quả và bền vững. Mẫu vật được thu hàng tháng trong chu kỳ 1 năm với tổng số mẫu là 822 cá thể. Kết quả phân tích cho thấy móng tay là loài phân tính, không phân biệt đực cái bằng mắt thường, tỷ lệ đực cái xấp xỉ 1:1. Tuyến sinh dục phát triển theo bốn giai đoạn. Mùa vụ sinh sản kéo dài từ tháng 12 đến tháng 3 năm sau, đỉnh cao vào tháng 12. Sức sinh sản tuyệt đối trung bình của móng tay là 1.048.893 ± 608.964 trứng/cá thể và sức sinh sản tương đối trung bình là 146.349 ± 95.666 trứng/gram khối lượng. Kích thước thành thục lần đầu 69,6 mm. Bài viết góp phần cung cấp cơ sở khoa học cho việc quản lý khai thác loài móng tay một cách hiệu quả và bền vững.
DẪN LIỆU MỚI VỀ MÔI TRƯỜNG NƯỚC VÀ SINH VẬT TRONG CÁC HANG NGẦM VÀ HỒ NƯỚC MẶN KHU VỰC VỊNH HẠ LONG, CÁT BÀ
Authors: Ngai Nguyen Dang , Thao Dau Van , Thung Do Cong , Thuy Le Thi , Luong Pham Van , Trang Cao Thu , Luu Vu Thi , Tien Dam Duc , Quan Nguyen Van , Chien Pham Van
Published: July 2016

Hang ngầm và hồ nước mặn là 2 dạng sinh cảnh khá phổ biến ở Hạ Long và Cát Bà, do nhiều nguyên nhân khác nhau đến nay chúng rất ít được quan tâm nghiên cứu. Các kết quả nghiên cứu bước đầu về môi trường và quần xã sinh vật trong 3 hang ngầm (Hang Sáng, Hang Tối, Hang Quả Bàng) và 3 hồ nước mặn (Áng Đầu Bê, Áng Dù, Áng Quả Bàng) cho thấy: Môi trường nước có sự khác biệt giữa các hồ, đặc biệt là trong hồ kín như Áng Dù có độ muối thấp (9‰), trong khi các hồ có cửa thông với biển có độ muối gần tương đương với môi trường ngoài (23 - 27‰). Hàm lượng chất khí hòa tan như DO trong các hồ nước mặn khá cao từ 7,63 - 9,03 mg/l, cao hơn trong hang ngầm và cao hơn ở môi trường biển xung quanh. Các yếu tố vật lý và hóa học trong môi trường nước tại các hang ngầm gần tương đương với môi trường bên ngoài do có các hang ngầm đều thông với biển và có nước chảy thường xuyên theo sự lên xuống của thủy triều. Quần xã sinh vật trong các hang khá phong phú với trên 142 loài được tìm thấy, phổ biến nhất là hải miên và san hô mềm, chúng phân bố dọc chiều dài hang. Có một số loài có giá trị kinh tế cao thường gặp trong hang là Cù kì Myomenippe hardwickii, ghẹ Portunus pelagicus, ốc nón Trochus pyramis, cá dìa Siganus sutor, cá hồng Lutjanus russellii ... Chưa phát hiện thấy các loài chuyên biệt sống cố định trong hang. Ở các hồ nước lưu thông với môi trường bên ngoài có sự xuất hiện của rạn san hô, chúng tạo thành một dải hẹp bao quanh hồ. Các bãi cát thường xuất hiện quanh hồ ở độ sâu 0,5 - 2 m có các loài đặc sản như phi phi, tu hài, hải sâm với mật độ khá cao (Áng Đầu Bê, Áng Quả Bàng). Trong áng kín không có rạn san hô do nước có độ muối thấp, có sự phân tầng của nhiệt độ và độ muối làm cho nhiệt độ ở tầng mặt thấp hơn tầng đáy 3 - 60C đây là hiện tượng bất thường ở các hồ này.
TÍNH TOÁN CÁC ĐẶC TRƯNG SÓNG Ở KHU VỰC NINH THUẬN - BÌNH THUẬN BẰNG MÔ HÌNH SWAN TRÊN LƯỚI PHI CẤU TRÚC
Authors: Chung Tran Van , Huan Nguyen Huu , Hoi Nguyen Truong Thanh
Published: July 2016

Mô hình sóng SWAN (phiên bản 41.01A) với lưới phi cấu trúc đã được áp dụng thử nghiệm vào tính sóng tại vùng biển Ninh Thuận - Bình Thuận. Đây là mô hình sóng thế hệ thứ ba, sử dụng phương pháp sai phân hữu hạn, ẩn hoàn toàn dựa trên các cạnh của điểm lưới phần tử phi cấu trúc với một sự khác nhau lớn về độ phân giải không gian nhằm phù hợp với một địa hình đáy phức tạp đại diện cho vùng nước nông và đường bờ khúc khuỷu. Đặc biệt, có thể sử dụng cùng mạng lưới tam giác phi cấu trúc trong tính toán dòng chảy bằng phương pháp phần tử hữu hạn. Điều này rất hữu ích trong giải quyết bài toán tương tác sóng - dòng và sóng - sóng. Những kết quả bước đầu cho thấy, cách tiếp cận ứng dụng mô hình tính sóng này là hợp lý, ổn định cho bước thời gian bất kỳ cho mạng lưới làm mịn, mang đặc trưng địa phương trong vùng nghiên cứu. Một số ứng dụng được chứng minh tính hợp lý của phiên bản lưới phi cấu trúc trong mô hình SWAN.
CƠ CHẾ CỦA DÒNG CHẢY SÓNG TRONG ĐỚI SÓNG TRÀN KHU VỰC BÃI BIỂN NHA TRANG
Authors: Cuong Nguyen Kim , My Tran Van , Jean-Pierre Lefebvre
Published: July 2016

Bài báo này trình bày các kết quả phân tích số liệu số liệu dòng chảy và năng lượng rối đo đạc và mô phỏng trong đợt khảo sát thực địa tại Nha Trang vào tháng 5 năm 2013. Các số liệu dòng chảy và năng lượng rối được đo đạc trong đới sóng tràn bằng máy Vectrino ADV. Để hiểu được bản chất của sự lan truyền sóng trong đới sóng tràn trên bãi biển Nha Trang, một mô hình số dựa trên lý thuyết vỡ đập cũng đã được triển khai. Các kết quả tính toán đã cho thấy mô hình có thể mô phỏng tương đối tốt quá trình lan truyền trên bãi của bore nước. Độ cao của bore nước đã được chứng minh tỷ lệ tuyến tính với độ cao sóng ngoài khơi. Phân bố của năng lượng rối cũng đã được định lượng và phân tích.
PRODUCTION OF ANTIBODY AGAINST DOMOIC ACID IN NEW ZEALAND WHITE RABBIT
Authors: Ha Dao Viet
Published: July 2016

In order to develop an ELISA KIT for detection of domoic acid in seafood in Vietnam, the antibody against domoic acid was produced by immunizing in New Zealand white rabbit using 250 and 500 µg domoic acid-dissuccinyl substrate-bolvine serum albumin as an antigen. Using 500 µg of domoic acid-dissuccinyl substrate-bolvine serum albumin, antibody exhibited activity in the rabbit’s serum after 5 months and only one out of 4 rabbits showed high activity (OD>3,000). Antibody activity in the rabbit serum was increasing and reached maximum after 6 months of experiment, then decreased rapidly in the following months. Domoic acid antibody titer was wide in range with good correlation in 1/800 to 1/51200 dilution. In 1/12800 dilution, a background signal was very low, with clear distinction between negative and positive results, so this concentration was chosen as an antibody titer unit. This unit is rather lower than that in some other studies, however, antibody obtained in this study showed no cross action with any of kainic acid, aspartic acid, glutamic acid, gamma-aminobutyric acid, globulin, proline, hydroxyproline, which have similar chemical structure to domoic acid. The results showed that antibody obtained in the study is specific to domoic acid, and can be used as material for domoic acid-ELISA kit in Vietnam.