bluuebunny/crossref_metadata_2025 huggingface dataset:
Ice Water Immersion as an Additional Method in Physiology Recovery in the Sport
Authors: Burboa Jair , Godoy Felipe , Riquelme María Soledad , Vivar Eugenia , Barahona Maximiliano , Zamorano Alvaro , Hinzpeter Jaime
Published: November 2018

Objective:
Soccer has a reduced overall recovery time. If these situations are not properly controlled they can cause the athlete chronic fatigue, an increase in delayed-onset muscle soreness (DOMS) and thus result in a decrease in athletic performance. There are several therapies that have attempted to improve athletic performance, decrease the percentage of injuries and results in soccer. Training and recovery instances are opportunities to find ways to address this issue. Understanding the physiology of recovery is essential to accelerate some processes, with the aim of shortening the times.

Subjects:
Cryotherapy could improve functional performance tests and decrease pain in soccer players. Our work design is an experimental prospective study.

Method:
Twenty subjects (10 experimental subjects and 10 control group subjects), between the ages of 17 and 23, who are members of a university men's soccer team, participated in the study. The following variables were controlled: power; the number of jumps, the average height of a jump in a 30-second continuous jump test, and DOMS perception through visual analog scale (VAS). Both groups shall be subjected to a more active recovery as well as elongation carried out by the coaching staff. In addition to this, the experimental group shall also be subjected to ice baths (42-47 °F) for three minutes.

Results:
We found significant statistical differences in the number of jumps and the power of the same in the control group, thus obtaining improvements. No significant differences were observed in either group for the average jump height and percentage yield variables. In the assessment of DOMS significant differences were observed, with a lower perception of DOMS seen in the experimental group.

Conclusion:
Ice baths provide favorable results in some aspects of the 30-second continuous jump test, decreasing the perception of leg pain and fatigue, and therefore they can be considered a valid alternative in the management of these athletes.
WEAR BEHAVIOUR OF VANES FOR A ROTARY VANE EXPANDER WITH VARIOUS GRAPHITE MATERIALS UNDER DRY SLIDING CONDITIONS
Authors: Vodička Václav , Novotný Václav , Mascuch Jakub
Published: November 2018

This study presents tribological properties of various graphite materials of vanes for rotary vane expanders. A test device was developed in order to measure the wear and power dissipation under conditions similar to a real operation of a vane expander. Subsequently, the friction coefficients of vanes for a rotary vane expander were evaluated. Parameters of the test device are based on the vane expander used for an experimental organic Rankine cycle unit. Four materials in total were tested: graphite, antimony-impregnated graphite, 2D carbon fibre-reinforced graphite, and 2.5D carbon fibre-reinforced graphite. Wear tests were performed under dry sliding conditions at the temperature of 115 °C and at 3030 rpm for the total time of about 400 hours. The method of evaluating the wear involved measuring the vane weight loss in relation to the duration of the load. Furthermore, specific wear coefficients were established in order to evaluate the tribological properties of the tested materials. Measurements have shown that carbon fibre materials are the most advantageous in terms of wear. The best friction properties were obtained for the pure graphite.
THE TIME DIFFERENCE IN EMISSION OF LIGHT AND PRESSURE PULSES FROM OSCILLATING BUBBLES
Authors: Vokurka Karel
Published: November 2018

Oscillations of spark-generated bubbles are studied experimentally. In this work, an attention is paid to the time difference in the radiation of light flashes and pressure pulses from a bubble at the final stages of the first bubble contraction and the early stages of the first bubble expansion. It is found that light and pressure pulses are not radiated synchronously. In some experiments, the light flashes are radiated before the pressure pulses by a few μs and in other experiments, the light flashes are radiated later than the pressure pulses by a few μs. The time difference in the radiation of the two pulses is examined in detail in relation with the bubble size, bubble oscillation intensity, maximum value of the light flash and the width of the light flash. It is shown that the magnitude of the time differences is very weakly correlated with the bubble size, intensity of oscillation and intensity of the light flashes and that the magnitude of the time differences is only moderately correlated with the light flashes widths.
NON-DESTRUCTIVE TESTING AND X-RAY DIFFRACTION ANALYSIS OF HIGH-TEMPERATURE DEGRADED CONCRETE
Authors: Dvořák Richard , Chobola Zdeněk
Published: November 2018

In the field of civil engineering a diagnostics acoustic non-destructive testing is widely used and in the past years it was used even in testing of high-temperature degraded concrete structures. These methods can provide specific information about the physical-mechanical state of material; however physical-chemical changes in microstructure are measurable to a limited extent. This article is focused on non-destructive and destructive testing of high-temperature degraded concrete test beams of dimensions 0.1 × 0.1 × 0.4 m fired at 200 − 1200 °C. The Impact-Echo method and ultrasonic velocity pulse method measurements are compared with destructive test results. Testing of measured changes in the p-m properties of reference and fired samples is then supplemented by X-ray diffraction analysis, in order to document mineralogical physical-chemical changes of tested material.
La industria de sensores en Colombia
Authors: Nivia Vargas Angélica Mercedes , Jaramillo Jaramillo Iván
Published: November 2018

Contexto: Colombia es un consumidor masivo de productos electrónicos y, en especial, de elementos primarios como sensores; sin embargo, no posee las herramientas para su producción. Los sensores, al ser los elementos necesarios para la realimentación de un proceso, se vuelven imprescindibles para la instauración de cualquier iniciativa de producción.Método: En este trabajo se realiza un diagnóstico y perspectiva de la industria de sensores en Colombia, enmarcada en la primera etapa de la tesis de maestría titulada “Estrategia de producción de sensores para el sector industrial colombiano”. Para tal fin, se hace un breve análisis de entorno (Román, 2016) y se establece su relación con la fabricación de dispositivos electrónicos en Colombia.Resultados: Se logra identificar algunos aspectos distintivos de la industria, como los sectores económicos donde se ubican las empresas que utilizan sensores, reconocimiento de las variables más medidas y, particularmente, qué sensores son los más utilizados para medir dichas variables. Además, se determinaron las principales compañías proveedoras de sensores en Colombia.Conclusiones: A partir de la indagación realizada, se concluyó que los sensores que miden temperatura y presión son aquellos con más demanda en la población de la industria nacional, y que el sector al que pertenecen la mayor cantidad de empresas consumidoras de sensores es la manufacturera.
Computational analysis of resistance mutations in the hepatitis C virus
Authors: Salvatierra Karina , Florez Hector
Published: November 2018

El virus de la hepatitis C (VHC) continúa siendo un problema de salud pública en todo el mundo. El desarrollo de medicamentos que se dirigen a las proteínas del virus como NS5B, tiene como objetivo proporcionar un tratamiento más eficaz en el futuro. Estos antivirales de acción directa (DAA) han demostrado un potente efecto in vitro e in vivo; sin embargo, se han descrito mutaciones en la NS5B del VHC asociada a la resistencia a DAA. La detección de mutaciones que son resistentes a DAA es importante para evitar posibles fallas de tratamiento. En este trabajo, desarrollamos un software para analizar mutaciones que son resistentes a los DAA en el gen NS5B del VHC. Para esto, utilizamos la secuencia del gen NS5B aislada Con1 genotipo 1b HCV, con base en las principales posiciones asociadas con la resistencia a DAA in vitro e in vivo descritas en la literatura. El algoritmo del software permite el análisis computacional de posibles cambios en las posiciones de nucleótidos y aminoácidos asociadas con mutaciones de resistencia a DAA en NS5B de HCV.
Estado del arte sobre vivienda de interés social rural en Colombia. Ajustes normativos desde 1930 hasta 2015
Authors: García Ubaque Cesar Augusto , Gil Hernández María Fernanda
Published: November 2018

La vivienda es una de las locomotoras de crecimiento de un país, por ello el gobierno de Colombia desde los años 30 empieza a desarrollar mecanismos que mejoren las condiciones habitacionales de las familias; sin embargo, desde la mitad de la última década el principal crecimiento de población se encuentra en lo urbano, el Plan Nacional de Desarrollo 2014- 2018, dado el proceso de paz, buscar renovar la vida en el campo fortaleciendo la calidad de vida de los campesinos por medio de la construcción y mejoramiento de la vivienda de interés social rural (VISR). En este sentido, el presente artículo tiene como finalidad realizar un diagnóstico de la evolución política de Vivienda y una revisión de normativa expedida por el Gobierno nacional para el apoyo en temas de subsidio de vivienda, requisitos de las condiciones y valor de la vivienda, ahorro solicitado, condiciones de las familias, identificación de las entidades encargadas de la promoción de vivienda rural y asignación de subsidios. Se realizarán comparativos que muestran que el Gobierno nacional debe seguir trabajando en el robustecimiento de normas que apoyen a las entidades, otorgantes de subsidio en requisitos presupuestales más acordes a los ingresos de las familias campesinas, así como las cuantificaciones de las Unidades Agrícolas Familiares (UAF) frente al área de terreno que poseen las diferentes familias campesinas. Finalmente, es importante la consolidación de resoluciones, decretos y leyes que expiden las diferentes entidades del estado que afectan áreas, presupuesto y requisitos para la construcción de vivienda de interés social rural.
Modelo logístico de recolección de llantas para la ciudad de Tunja
Authors: Fonseca Villamil Miguel Antonio , Mesa Mesa Cesar Hernando
Published: November 2018

En la ciudad de Tunja no se cuenta con fuentes de información e indicadores exactos que establezcan la cantidad de llantas usadas y desechadas en tiraderos clandestinos, patios de casas y centros de acopio, las cuales generan impacto negativo en el medio ambiente y la salud de los habitantes, evidenciando la necesidad de generar una solución logística. Se presenta una investigación de enfoque cuantitativo de tipo estudio de caso; en esta se utilizó el método CVRP, que consiste en el diseño de un conjunto de rutas de menor coste, donde cada cliente se visite una única vez por un único vehículo y todas las rutas comienzan y finalizan en un centro de gravedad. Como resultados se logró la caracterización y diseño de un modelo logístico, que integró la ubicación de punto de acopio, demanda, rutas de recolección, capacidades, como herramienta sólida y actualizada que generara alternativas ambientales para la ciudad.
Ergogenic Effects of β-Alanine Supplementation on Different Sports Modalities: Strong Evidence or Only Incipient Findings?
Authors: Brisola Gabriel M.P. , Zagatto Alessandro M.
Published: November 2018

Brisola, GMP and Zagatto, AM. Ergogenic effects of β-alanine supplementation on different sports modalities: strong evidence or only incipient findings? J Strength Cond Res 33(1): 253–282, 2019—β-Alanine supplementation is a popular nutritional ergogenic aid among the sports community. Due to its efficacy, already proven in the literature, to increase the intramuscular carnosine content (β-alanyl-L-histidine), whose main function is intramuscular buffering, β-alanine supplementation has become a nutritional strategy to improve performance, mainly in high-intensity efforts. However, although many studies present evidence of the efficacy of β-alanine supplementation in high-intensity efforts, discrepancies in outcomes are still present and the performance enhancing effects seem to be related to the specificities of each sport discipline, making it difficult for athletes/coaches to interpret the efficacy of β-alanine supplementation. Thus, this study carried out a review of the literature on this topic and summarized, analyzed, and critically discussed the findings with the objective of clarifying the current evidence found in the literature on different types of efforts and sport modalities. The present review revealed that inconsistencies are still found in aerobic parameters determined in incremental tests, except for physical working capacity at the neuromuscular fatigue threshold. Inconsistencies are also found for strength exercises and intermittent high-intensity efforts, whereas in supramaximal continuous mode intermittent exercise, the beneficial evidence is strong. In sports modalities, the evidence should be analyzed separately for each sporting modality. Thus, sports modalities that have strong evidence of the ergogenic effects of β-alanine supplementation are: cycling race of 4 km, rowing race of 2,000 m, swimming race of 100 and 200 m, combat modalities, and water polo. Finally, there is some evidence of slight additional effects on physical performance from cosupplementation with sodium bicarbonate.
When Something Is at Stake: Differences in Soccer Performance in 11 vs. 11 During Official Matches and Training Games
Authors: Olthof Sigrid B.H. , Frencken Wouter G.P. , Lemmink Koen A.P.M.
Published: November 2018

Olthof, SBH, Frencken, WGP, and Lemmink, KAPM. When something is at stake: Differences in soccer performance in 11 vs. 11 during official matches and training games. J Strength Cond Res 33(1): 167–173, 2019—11 vs. 11 training games are used to mimic the official match, but differ in playing duration and a consequence of winning or losing. Anxiety levels, crowd pressure, and the intention to win are examples of constraints present in the match, but absent or less prevalent in training. The aim is, therefore, to compare soccer performance in official matches with 11 vs. 11 training games. Six elite youth soccer teams played 5 official matches and 15 training games. Soccer performance, defined as a combination of game characteristics (game duration, transitions, and ball possession duration) and physical (distance covered, high-intensity distance, and sprints), technical (passing), and team tactical performance (inter-team and intra-team distances) and corresponding interaction patterns, was determined with video footage and positional data (local position measurement system). Soccer performance in official matches differed from similar training games, in a way that players covered more distance, sprinted more often, but game pace was lower and players made more mistakes. In addition, team width was smaller and length-per-width ratio larger and teams were tighter coupled in official matches. 11 vs. 11 training games can be used to mimic the match, in particular the team tactical performance. Coaches could increase physical and technical representativeness of training games by raising the stakes and increasing the consequence of winning or losing.
Field Permeability Tests with Inward and Outward Flow in Confined Aquifers
Authors: Zhang Lu , Chapuis Robert P. , Marefat Vahid
Published: November 2018

Field permeability tests gave the local hydraulic conductivities (K) at three different sites. Constant head (CH) and variable head (VH) tests were performed using 33 monitoring wells (MWs) installed in confined aquifers. Each test method was conducted with either an inward flow from aquifer to pipe or outward flow from pipe to aquifer, which makes a total of four types of tests: discharge and injection tests (CH) and rising and falling head tests (VH). The MWs were developed soon after their installation to remove the fine particles that were close to the screen areas. This article first explains various test results at different sites. For MWs in perfect condition, two opposite flows should yield equivalent K values. However, the tests with inward flow and outward flow gave different K values, which is due to some clogging of the screen or internal erosion of the filter pack. In addition, the K (CH tests), which are frequently lower than the K (VH tests), are more accurate because the CH test lasts longer and has a larger influence radius. The article also provides recommendations for estimating reliable K values for a confined aquifer.
Efficiency of the computation bitwise pipelining in FPGA-based components of safety-related systems
Authors: Nikul V. V. , Drozd A. V. , Drozd J. V. , Ozeransky V. S.
Published: November 2018

The use of computer systems like safety-related systems to ensure the functional safety of high-risk objects has raised them in the development of resources to the level of diversification. At the same time, the digital components, traditionally designed on the basis of array structures, remained at the lower level of a replication of resources. This discrepancy has created a problem of the hidden faults that can be accumulated in digital components during a prolonged normal mode and reduce their fault tolerance and system functional safety in the most critical emergency mode. Bitwise pipelines related to the level of resource diversification allow solving the problem of the hidden faults, but they are compelled to compete with the array structures, for which a powerful supporting infrastructure has been created for many decades.
The paper presents a comparative analysis of the efficiency of FPGA-basedbitwise pipelines and matrix structures. Studies have shown that bitwise pipelines exhibit high efficiency exceeding that of the matrix structures in terms of both performance and energy consumption, even when designing a matrix orientation on CAD. Since such orientation reduces the advantages of bitwise pipelines, a method is proposed to increase their efficiency, which improves their throughput and energy consumption, whilemaking a cårtain concessionsto the matrix orientation of CAD. Thiswould beparticularly importantduring the transitional period, while the traditions of matrix domination are to be overcome and the of bitwise pipeline computing is to be formed.
Electrophysical and photoelectric characteristics of a three-barrier photodiode GaAs structure
Authors: Abdulkhaev O. A. , Yodgorova D. M. , Karimov A. V. , Yakubov A. A. , Kuliyev Sh. M.
Published: November 2018

The work is devoted to the study of physical features of electronic processes taking place in the space charge region and in the base region of arsenide-gallium three-barrier photodiode structures with the effect of locking two adjacent transitions. The structures have high photosensitivity in the «impurity» region of the spectrum at both inclusion polarities. The obtained results suggest that such structures can be used in optical communication systems. The study allowed showing that a three-barrier photodiode m1—p-GaAs—n-GaAs—m2-structure with a high quantum efficiency can exceed 8 times the photosensitivity of a photodiode as compared to a photodiode with a single p—n junction. In the m1—p-GaAs—n-GaAs—m2 photodiode structure, the maximum photosensitivity is achieved in the impurity region of the spectrum (above 1.0 µm) when excitation of nonequilibrium current carriers through the barrier to the semiconductor, in contrast to the intrinsic spectral region (0.86 µm). It has been shown experimentally that the photosensitivity of the structure in the direct-displacement mode of the p-n junction is larger, compared with the locking mode, and the maximum photosensitivity is achieved in the impurity region of the spectrum. That is, the impurity levels of oxygen present in the base region take part in the separation of the photocarriers. The dependence of the current on the voltage is described by a power function with an exponent of 0.5 corresponding to the generation-recombination process in the space-charge region of the p-n junction.
Changing the conductivity of porous silicon with silver nanoparticles/silicon structures when detecting hydrogen peroxide
Authors: Kutova O. Yu. , Dusheyko M. G. , Loboda B. O. , Obukhova T. Yu.
Published: November 2018

The authors investigate the influence of hydrogen peroxide concentration on the conductivity of the porous silicon with silver nanoparticles / crystalline silicon system. A simple resistive sensor with Ag nanoparticles was used as a catalyst in order to study processes occuring in porous silicon during hydrogen peroxide detection. Porous silicon was formed using a two-stage metal-assisted chemical etching with Ag nanoparticles. It was shown that two simultaneous processes are involved here: carrier extraction to porous silicon caused by interaction with hydrogen peroxide molecules and heating caused by hydrogen peroxide decomposition in presence of Ag nanoparticles. Dimensions of the investigated sensor structure were comparable with a drop of the solution, thus at 30‰ concentration heating could reach 10°C. As porous silicon/crystalline silicon system has a negative temperature coefficient, two above mentioned processes counteract which leads to a maximum, or saturation, on the graph of the dependence of resistivity on hydrogen peroxide concentration at 10—11‰. Sensitivity declines from 0.001—0.02 to 0.0001—0.0003%/‰. To prove these thesis resistivity-concentration dependences were adjusted taking into account calculated heating caused by hydrogen peroxide decomposition. It was shown that in this case the slope of the dependence curve remains stable up to 30 ‰ and sensitivity remains about 0.001—0.02%/‰.
Two Pif1 Family DNA Helicases Cooperate in Centromere Replication and Segregation in Saccharomyces cerevisiae
Authors: Chen Chi-Fu , Pohl Thomas J , Pott Sebastian , Zakian Virginia A
Published: November 2018

Pif1 family helicases are found in virtually all eukaryotes. Saccharomyces cerevisiae (Sc) encodes two Pif1 family helicases, ScPif1 and Rrm3. ScPif1 is multifunctional, required not only for maintenance of mitochondrial DNA but also for multiple distinct nuclear functions. Rrm3 moves with the replication fork and promotes movement of the fork through ∼1400 hard-to-replicate sites, including centromeres. Here we show that ScPif1, like Rrm3, bound robustly to yeast centromeres but only if the centromere was active. While Rrm3 binding to centromeres occurred in early to mid S phase, about the same time as centromere replication, ScPif1 binding occurred later in the cell cycle when replication of most centromeres is complete. However, the timing of Rrm3 and ScPif1 centromere binding was altered by the absence of the other helicase, such that Rrm3 centromere binding occurred later in pif1-m2 cells and ScPif1 centromere binding occurred earlier in rrm3Δ cells. As shown previously, the modest pausing of replication forks at centromeres seen in wild-type cells was increased in the absence of Rrm3. While a lack of ScPif1 did not result in increased fork pausing at centromeres, pausing was even higher in rrm3Δ pif1Δ cells than in rrm3Δ cells. Likewise, centromere function as monitored by the loss rate of a centromere plasmid was increased in rrm3Δ but not pif1Δ cells, and was even higher in rrm3Δ pif1Δ cells than in rrm3Δ cells. Thus, ScPif1 promotes centromere replication and segregation, but only in the absence of Rrm3. These data also hint at a potential post-S phase function for ScPif1 at centromeres. These studies add to the growing list of ScPif1 functions that promote chromosome stability.
Mesenchymal stem cells accelerate liver regeneration in acute liver failure animal model
Authors: Putra Agung , Antari Arini Dewi , Kustiyah Azizah Retno , Intan Yulice Soraya Nur , Sadyah Nur Anna C. , Wirawan Nugraha , Astarina Samara , Zubir Nasrul , Munir Delfitri
Published: November 2018

Introduction: The massive hepatic necrosis of acute liver failure (ALF) results in a sudden loss of hepatic cells. Although most hepatocyte cells of ALF are completely lost, stem cell-derived circulating cells and endogenous progenitor cells rapidly regenerate them. Mesenchymal stem cells (MSCs) have a critical role in the regeneration of liver injury through regulating platelet-derived growth factor (PDGF) and vascular endothelial growth factor (VEGF) levels. However, their fluctuating levels in the healing process and correlation to the decrease of liver function markers remain unclear. The aim of this study was to analyze the effects of MSCs in accelerating liver regeneration of ALF by measuring VEGF and PDGF levels on day 2 and 7, as well as SGPT and SGOT levels, and assessing histopathology appearance.
Methods: Using an ALF rat model, 12 animals were randomly assigned into two groups: umbilical cord (UC)-MSC injection (T1) and vehicle control (Veh). ELISA assay was employed to measure PDGF and VEGF levels, an automatic analyzer was used to assess serum glutamic pyruvic transaminase (SGPT) and serum glutamic oxaloacetic transaminase (SGOT), and hematoxylin and eosin (H&E) staining was used to evaluate morphological appearance.
Results: The study showed an significant (P<0.001) increase of PDGF and VEGF levels on the 2nd day, followed by a decrease on the 7th day, along with a decrease of SGPT and SGOT levels as well as the normality of histology appearance.
Conclusion: In conclusion, administration of MSCs may accelerate liver regeneration of ALF through PDGF and VEGF regulation.
Az érzelmi intelligencia összefüggései az álomjellemzőkkel, az alexitímiával és a globális jólléttel
Authors: Fenyves Laura , Bányai-Nagy Henriett
Published: November 2018

Elméleti háttér, célkitűzés: A korábbi kutatások feltárták az alexitímia és az álomjellemzők közötti kapcsolatokat, továbbá igazolták ezek összefüggését a szubjektív jólléttel. Az alexitímia és az érzelmi intelligencia (EI) közötti erős negatív összefüggés szintén igazolt, ugyanakkor az EI és az álomjellemzők kapcsolatára vonatkozóan napjainkig nem állnak rendelkezésre kutatási eredmények. Jelen kutatás az alexitímia mellett az EI álomjellemzőkkel és szubjektív jólléttel mutatott összefüggéseit is vizsgálja, alvászavarral nem küzdő, felnőtt, magyar mintán.

Módszer: Az online, kényelmi mintavétel alkalmazásával végzett kutatásunkban 936 fő vett részt (474 férfi, 462 nő; átlagéletkor = 26,39 év, szórás = 10,33). A résztvevők az alábbi kérdőíveket töltötték ki: Érzelmek Mérése Skála, Torontói Alexitímia Skála, Álomfelidézési Skála, Álomminőség Kérdőív, Athén Inszomnia Skála, Globális Jóllét Kérdőív, valamint rákérdeztünk az álmok fontosságára és jelentésteliségére is.

Eredmények: Az EI szignifikáns, pozitív együttjárást mutatott az álomfelidézés gyakoriságával, az álmok fontosságával, jelentésteliségével, élénkségével és a kifejezetten örömteli álmok gyakoriságával. Az alexitímia a vizsgált álomjellemzők közül az álomélénkséggel negatívan, a kifejezetten nyomasztó álmok gyakoriságával pedig pozitívan korrelált. A globális jóllét az álomélénkséggel és a kifejezetten örömteli álmok gyakoriságával pozitívan, a kifejezetten nyomasztó álmok gyakoriságával negatívan korrelált. A változókból létrehozott globális jóllétet magyarázó modell szignifikáns volt, mely főképp az EI és a kifejezetten örömteli álmok gyakorisága változók hatásának volt köszönhető.

Következtetések: Az eredményeink azt jelzik, hogy az EI és bizonyos álomjellemzők kapcsolatban állnak, illetve az EI álomjellemzőkkel mutatott összefüggései jelentősebbek a szakirodalomban korábban feltárt alexitímia és álomjellemzők közötti együttjárásoknál. Az eredmények támogatják azt a feltételezést, hogy az álmok összefüggést mutatnak az érzelmi megküzdéssel.
Gambaran Identitas Etnis Remaja Suku Jawa dan Sunda
Authors: Fathurroja Aqiila , Mumtazah Humaira , Rosiana Rosiana , Pudoli Siti Barkah Miarti , Fridayanti Fridayanti
Published: November 2018

Ethnic identity is important in cultural inheritance. In border areas, there are often mixing of two different ethnic groups. The purpose of this study is to obtain an overview of the ethnic identity of Sundanese and Javanese adolescents in the border region. The subjects in this study were  two group of students from one High school in Ciamis, a border area between West Java and central Java.  They were members of the Javanese and Sundanese ethnic groups (N=60).  The instrument used is the Multigroup Ethnic Identity Measure (MEIM) scale developed by Phinney (1992). Result shows that the two ethnic groups have almost the same sense of ownership, but they are low in exploring their ethnicity.
KAJIAN BIOEKOLOGI IKAN KARANG CHAETODONTIDAE SEBAGAI SALAH SATU INDIKATOR UNTUK MENDETEKSI KONDISI EKOSISTEM TERUMBU KARANG DI PERAIRAN TAMAN NASIONAL KEPULAUAN TOGEAN, SULAWESI TENGAH
Authors: Suharti Ratna , Saktiawan Kresna Yugha , Rachmad Basuki , Triyono Heri , Zulkifli Dadan
Published: November 2018

Taman Nasional Kepulauan Togean memiliki kekayaan hayati bawah laut sangat besar, salah satunya adalah ikan family Chaetodontidae yang memiliki keterkaitan erat dengan kondisi fisik terumbu karang sehingga ikan ini dapat dijadikan sebagai indikator kondisi ekosistem terumbu karang. Penelitian ini dilakukan dengan tujuan mengamati komposisi jenis dan sebaran serta mengkaji bioekologi ikan famili Chaetodontidae di perairan Taman Nasional Kepulauan Togean, Provinsi Sulawesi Tengah yang dilaksanakan di 15 stasiun  pada bulan Februari - Mei 2017. Pengambilan data ikan menggunakan metode UVC. Analisis isi lambung dilakukan menggunakan metode index of preponderance (IP). Komposisi ikan Family Chaetodontidae di Taman Nasional Kepulauan Togean terdiri dari 12 spesies dari 3 genera. Indeks keanekaragaman (H’) berkisar antara 0,92 – 2,05, indeks keseragaman (E) berkisar antara 0,83 – 1,00  serta indeks dominansi (C) berkisar antara 0,14 – 0,44. Hasil analisis makanan pada Family Chaetodontidae ditemukan 8 jenis makanan, dan bersifat hard coral feeder. Berdasarkan penilaian ekologi mengindikasikan bahwa keadaan terumbu karang di perairan Taman Nasional Kepulauan Togean masih dalam keadaan baik, kecuali pada Pulau Waleakodi cenderung telah mengalami kerusakan. Pengelompokan kesamaan spesies membentuk kelompok yang mengerucut ke perairan Pulau Togean, menunjukkan bahwa hampir seluruh spesies ikan family Chaetodontidae ditemukan terdapat di Pulau Togean.Parameter perairan meliputi kecepatan arus, salinitas dan suhu tergolong layak.
Emergency Collateral Upgrades
Authors: Carlson Mark , Macchiavelli Marco
Published: November 2018

During the 2008-09 financial crisis, the Federal Reserve established two emergency facilities for broker-dealers. One provided collateralized loans. The other lent securities against a pledge of other securities, effectively providing collateral upgrades, an operation similar to activities traditionally undertaken by broker-dealers. We find that these facilities alleviated dealers' funding pressures when access to repos backed by illiquid collateral deteriorated. We also find that dealers used the facilities, especially the ability to upgrade collateral, to continue funding their own illiquid inventories (avoiding potential fire-sales), and to extend funding to their clients. Exogenous variation in collateral policies at one facility allows a causal interpretation of these stabilizing effects.
KARAKTERISASI LIMBAH DARI PRODUKSI RADIOISOTOP MOLIBDENUM-99
Authors: Aisyah Aisyah , Artiani P. Ayu , Purwanto Yuli
Published: November 2018

KARAKTERISASI LIMBAH DARI PRODUKSI RADIOISOTOP MOLIBDENUM-99.  Radioisotop 99Mo diproduksi terutama sebagai radioisotop induk untuk memperoleh radioisotop tecnisium-99m (99mTc). Radioisotop 99mTc dipakai dalam kedokteran nuklir antara lain  untuk diagnosis pada kelainan tulang, otak, thyroid, paru-paru, hati dan ginjal. Di Indonesia 99Mo diproduksi oleh PT. Industri Nuklir Indonesia (INUKI) dari target uranium yang dilekatkan kedalam dinding kapsul baja tahan karat untuk kemudian diiradiasi di Reaktor GA Siwabessy. Pengambilan 99Mo dalam target dilakukan dengan proses CINTICHEM. Pada proses CINTICHEM akan ditimbulkan  beberapa jenis limbah yang salah satunya adalah Radioactive Fission Waste (RFW). Limbah ini memiliki paparan radiasi yang besar yang mengakibatkan karakterisasi limbah secara laboratorium sulit dilakukan. Pengelolaan limbah yang tepat memerlukan karakteristik limbah yang tepat pula. Oleh karena itu dalam penelitian ini dilakukan karakterisasi limbah RFW menggunakan program komputer ORIGEN 2.1 dengan data parameter input adalah data dari salah satu batch produksi 99Mo di PT INUKI yang berupa data target uranium diperkaya tinggi 92,7% yang dilekatkan pada kapsul baja tahan karat AISI 304L, iradiasi dilakukan pada posisi Centre Irradiation Position (CIP) dalam Reaktor Serbaguna GA Siwabessy dengan fluks netron termal: 1,12x1014 n/cm2detik dan iradiasi target dilakukan selama 96 jam. Seleksi radionuklida yang relevan terhadap metode pengelolaan limbah dilakukan berdasarkan pada waktu paro, tingkat kliren dan radiotoksisitas. Hasil penelitian menunjukkan bahwa sampai dengan waktu peluruhan 50 tahun, total konsentrasi aktivitas limbah 3,01x109 Bq/g dengan kandungan radionuklida produk aktivasi, aktinida dan anak luruhnya serta produk fisi. Selain itu limbah ini juga mengandung 235U yang masih cukup besar serta radionuklida umur paro panjang dengan tingkat toksisitas yang sangat tinggi. Berdasarkan pada Peraturan Pemerintah No.61 Tahun 2013 limbah ini diklasifikasikan sebagai limbah radioaktif  tingkat sedang dan memerlukan pengelolaan dengan tingkat keselamatan yang tinggi.
Hedendaagse godsdienstfilosofie: Een inleiding
Authors: Schrijvers J
Published: November 2018

Dit essay beoogt de mogelijkheden van een hedendaagse godsdienstfilosofie aan te tonen. Het geeft de lotgevallen weer van de Derridiaanse deconstructie in het hedendaagse intellectuele veld, met name door het denken van Martin Hägglund en John D. Caputo weer te geven, die respectievelijk een atheïstische en een theologische lezing van Derrida bieden. Dit artikel stelt een alternatief voor. In het denken van de vergeten filosoof Ludwig Binswanger, en diens fenomenologie van de liefde worden antwoorden gevonden op verschillende vragen die in de hedendaagse continentale filosofie worden gesteld. Binswangers fenomenologie biedt immers een empirische-transcendentale methode die zo de gebreken van zowel de deconstructie als de fenomenologische methode aanpakt. Binswangers ontologie van het groeten, tot slot, wordt hier geïnterpreteerd als een hedendaagse godsdienstfilosofie die, net omwille van haar ontologische stellingname, verschilt van veel gestalten die de hedendaagse theologie aanneemt.
Die ekonomiese belang van die beskerming van minderheidsgroepe vir die staat
Authors: du Buisson T
Published: November 2018

Regerings moedig graag nasiebou aan, met die oogmerk om hul burgers saam te snoer en nasionale eenheid te bewerkstellig. In homogene samelewings geskied dit gewoonlik heel maklik, omdat mense van nature mag voel dat hulle 'n enkele gemeenskaplike doel nastreef. Minderheidsgroepe word egter daarby uitgesluit. Hierdie artikel belig die feit dat dit nog altyd die geval is. Daar word ook betoog dat regerings, veral dié van Suid-Afrika, doelbewus daarop uit is om minderheidsgroepe te ondermyn. Deur te verwys na veral die rol vir die staat wat Adam Smith identifiseer, word sulke oormatig betrokke regerings se legitimiteit bevraagteken. Veral waar dit op die direkte ondermyning van geregtigheid neerkom, is dit in stryd met Hobbes se sosiale kontrak, sowel as Adam Smith se voorgestelde rol vir die staat. 'n Ander belangrike punt wat beklemtoon word, is dat kulturele groepe se welvaart altyd voordele inhou ook vir ander groepe. Deur een te ondermyn, word die hele samelewing dus ondermyn.
Die ekologiese krisis, kapitalistiese ekonomie en tegno-optimisme
Authors: Olivier B
Published: November 2018

Hierdie artikel poog om die problematiek rondom die verhouding tussen die huidige, groeiende ekologiese krisis - waarskynlik die grootste krisis in menslike geskiedenis - en die dominante ekonomiese praktyk van neoliberale kapitalisme in perspektief te stel. Eerstens word die ekologiese krisis in bondige terme geskets, met verwysing na getuienis hiervan in die vrylik-beskikbare, groeiende wetenskaplike en ander literatuur, wat onteenseglike aanduiding is van die bestaan van sodanige krisis. Daarna word die verhouding tussen hierdie toedrag van sake en die kapitalistiese beginsel van grenslose ekonomiese groei aan die orde gestel, in die lig van die stelling dat onbeteuelde ekonomiese groei nie binne 'n eindige ekologiese sisteem moontlik is nie. Bowendien het die uitwerking van ongebreidelde ekonomiese groei onder kapitalisme demonstreerbare, vernietigende gevolge vir die omvattende eko-sisteem, soos wat dit waargeneem kan word in die veranderinge wat daar reeds in sommige "aardprosesse", soos oseaanversuring, globale verwarming, spesie-uitsterwing, en so meer, plaasvind. Daar word uitgebrei op die gevolge hiervan vir die voortgesette bestaan van lewende wesens op aarde. Ten einde die gronde van die ekologiese krisis beter te verstaan, word die kwessie van wydverspreide tegno-optimisme vervolgens ondersoek, in die oortuiging dat daar 'n verband is tussen genoemde krisis en die obsessie met tegnologie wat die huidige era kenmerk. Ter afsluiting word besin oor wat die huidige toedrag van sake filosofies impliseer sover dit die moontlike uitsterwing van die mensdom en ander lewende wesens betref.
Children’s preference for real activities: Even stronger in the Montessori Children’s House
Authors: Taggart Jessica , Fukuda Eren , Lillard Angeline Stoll
Published: November 2018

In the United States, children are often given the opportunity to engage in pretend activities; many believe this kind of play benefits children’s development. Recent research has shown, though, that when children ages 4 to 6 are given a choice to do the pretend or the real version of 9 different activities, they would prefer the real one. The reasons children gave for preferring real activities often concerned their appreciation of the functionality; when children did prefer pretend activities, their reasons often cited being afraid of, not allowed to, or unable to do the real activity. Given that children in Montessori classrooms have more experience performing real, functional activities, in this study we asked if this preference for real activities is even stronger among children in Montessori schools. We also asked children to explain their preferences. The data are from 116 3- to 6-year-old children (M = 59.63 months, SD = 12.08 months; 68 female): 62 not in Montessori schools and 54 in Montessori schools. Children explained their preferences for pretendand real versions of 9 different activities. Children in Montessori schools preferred real activities even more than did children in other preschools, but all children explained their choices in similar ways. The implications of these results are discussed with regard to play in preschool classrooms.
Life and Creative Work of Fyodor Vasilyuk: Overcoming the Schism in Academic and Practical Psychology
Authors: Zaretsky V.K. , Karyagina T.D. , Kholmogorova A.B.
Published: November 2018

In this paper we reflect on the creative legacy of F.Ye. Vasilyuk. Understanding psychotherapy, considered as a multi-level psychotechnical system; educational projects; organizational, publishing and other activities of Fyodor Vasilyuk in the field of psychological counselling and psychotherapy — all can be thought of as an integral whole, as a multidimensional solution to the problem of the schism in academic psychology and psychological practice. Here we trace the following three lines in Vasilyuk’s work: from practice to science, from science to practice, and the line of integrating science and practice in education. The first line, “from practice to science”, is analyzed (by V.K. Zaretsky) in relation to how understanding psychotherapy has enriched the Russian tradition of exploring thinking through solving creative tasks. The second line, “from practice to science”, is reviewed (by T.D. Kryagina) in the context of studies of empathy in cultural-historical psychology and their impacts on the development of understanding psychotherapy and educational process. In the “education” line, A.B. Kholmogorova presents a brief outline of the history of the first ever Russian social institution for training qualified practical psychologists.
Etiology, pathogenesis, classification and clinical picture of acne vulgaris. Modern view of the problem
Authors: Barinova Anna N.
Published: November 2018

The article reviews contemporary data on epidemiology, classification, pathogenesis of acne. The classification according to the ICD-10, clinical classification of acne by G. Plewig and M. Kligman, classification of acne according to the type of lesion are given and explained. The role of different cytokines imbalance described and data on changing understanding of the role of P. acnes in acne pathogenesis are provided.
Modern principles of anti-viral therapy of hepatitis C
Authors: Kuznetsov Nikolay I. , Romanova Elena S. , Startseva Galina Y.
Published: November 2018

The article presents the basic principles of antiviral therapy for hepatitis C. The main objectives and importance of antiviral therapy for hepatitis C are considered. The concept of a sustained virological response is given. The necessity of determining the causal relationship between infection with the hepatitis C virus and liver damage is substantiated. The article discusses the principles of antiviral therapy using interferon and interferon-free therapy with direct-acting antiviral drugs in both patients with acute and chronic hepatitis C.
WNT7A (rs104893832) polymorphism increases the risk of recurrent spontaneous abortion in Iranian women
Authors: Mazdapour Manouchehr , Ashkezari Mahmood Dehghani , Seifati Seyed Morteza
Published: November 2018

BACKGROUNDRecurrent spontaneous abortion is defined as the occurrence of three or more clinical miscarriages in one woman. Several factors, including genetics and environmental factors, are involved in this kind of infertility, in which WNT7A (rs104893832) polymorphism plays a major role. The aim of the present study was to determine the association between a common polymorphism of WNT7A (rs104893832) with recurrent spontaneous abortion in females. METHODSIn the present case-control study, the WNT7A (rs104893832) polymorphism was investigated in 70 women with recurrent spontaneous abortion as cases and 100 women with at least one child and no history of infertility or abortion as controls. Polymerase chain reaction- restriction fragment length polymorphism (PCR-RFLP) was used to investigate the WNT7A (rs104893832) polymorphism in both case and control groups. The data were subsequently analyzed using the chi-square and logistic regression tests by SPSS software (version 18.0). RESULTSA significant association was found between the WNT7A (rs104893832) polymorphism and recurrent spontaneous abortion (OR=25.00, 95% CI=5.52-157.09; p<0.0001). Our finding showed that G allele frequency in women with recurrent spontaneous abortion was significantly different compared to the control group. (OR=6.42, 95% CI=2.82-15.16; p<0.0001).Therefore, genetic variation in WNT7A (rs104893832) polymorphism may play a role in recurrent spontaneous abortion. ConclusionThis study revealed that WNT7A (rs104893832) polymorphism increased the risk of recurrent spontaneous abortion. Knowledge of these mutations and polymorphisms can provide an insight into the prognosis for individual patients. Therefore, further studies are necessary to establish the association of WNT7A (rs104893832) polymorphism with recurrent spontaneous abortion in a larger population.
Impact of Flood 2010 on the Fertility Status of Soil of Tehsil Garhi Khairo, District Jacobabad, Pakistan
Authors: Bhayo Adnan Murad , Latif Muhammad , Babar Javed Ali , Gandahi Allah Wadhayo
Published: November 2018

A field study was carried out to assess some measurable changes in chemical properties of the soil of taluka Garhi Khero, district Jacobabad that was affected by ‘Supra flood 2011’. Forty-five composite soil samples were collected from three sampling depths, 0-15 cm, 15-30 cm, and 30-45 cm for the determination of various chemical parameters such as pH, electrical conductivity, soluble sodium (Na+), potassium (K+), calcium (Ca+2), and magnesium (Mg+2). Results of the analysis were compared with the reference data that were studied before the flood. Results of the analysis revealed that due to flood, chemical nature of soil was changed from slightly alkaline to strongly alkaline. Before and after flood soil remains non-saline. There has been a significant increase in the optimum concentration of soluble sodium (Na+), calcium (Ca+2) and magnesium (Mg+2). However; potassium (K+) content of the soil was uniformly decreased. Keywords: Flood, soil, agriculture, crops, Jacobabad.
Assessment of nutritional status in adolescent girls residing in social welfare hostels in Tirupati town: a cross sectional study
Authors: Deekala Ravi Sankar , Kokku Meghana Reddy
Published: November 2018

Background: One way to break the intergenerational cycle of malnutrition is to improve the nutrition of adolescent girls prior to conception. Adolescent health and nutrition are important issues which have not received the attention it deserves in our country, especially in the context of a girl child. The objectives of the study were to assess the nutritional status of the adolescent girls residing in the social welfare hostels of Tirupati town, Andhra Pradesh.Methods: The Nutritional status will be assessed by anthropometric measurements (i.e., height, weight, BMI) and questionnaire.Results: 54.1% of the adolescent girls were underweight.61.4% of them studying 1st and 2nd years of their graduation. 52.2% of them belonged to upper lower class according to modified Kuppuswamy classification 2016.76% of adolescent girls belonged to the family size of less than or equal to five. 44.1% has one sibling. 33% of the adolescent girls use nutritional supplements.59.7% of adolescent girls has junk food once a week. 56.1% of them routinely involve in moderate physical activity. 4.1% of them who attained menarche do not practice menstrual hygiene. 62.3% of them visited health center for 1-5 times in the past one year.71.5% of them does not practice deworming. 5.9% observed worms in their fecal matter. 19.7% of the adolescent girls have vision problems. 67.3% of adolescent girls have awareness regarding nutritional health. Only 28.2% of adolescent girls get cosmetic charges from government.Conclusions: There is relation between nutritional status and educational level (better among graduates).
Significance of NF-kappaB signaling and PARP1 activity in the TNF-induced inhibition of PHEX gene expression in human osteoblasts
Authors: Majewski Paweł Marek , Kędzierska Urszula , Banasiak Łukasz , Kiela Paweł
Published: November 2018

Although loss of bone mineral density is a common symptom of chronic inflammatory diseases, its mechanisms are still poorly understood. The PHEX gene encodes a Zn-endopeptidase expressed in osteoblasts and contributes to bone mineralization. Data derived from rodents has indicated co-repression of the PHEX gene by the NF-κB pathway and poly(ADP-ribose) polymerase 1 (PARP1). The aim of this study was to determine the molecular mechanism involved in TNF-mediated downregulation of PHEX expression in human osteoblasts and human osteosarcoma cell line. We observed that activation of the NF-κB pathway by TNF was manifested as a nuclear increase in RELA and NFKB1 heterodimer. We found that TNF reduced PHEX expression and the proteasome inhibitor reversed this effect in osteosarcoma cell line. Contrary to the effects seen in rodents, inhibition of PARP1 enzymatic activity did not significantly reverse the effect of TNF on the human PHEX gene expression. EMSA studies showed that the number of adenines in the PHEX proximal promoter is crucial for the transcription factors’ interactions within that region. The obtained results support the hypothesis indicating the existence of a molecular mechanism of gene repression that involves a poly adenine-rich region of the proximal gene promoters and PARP1 transcriptional activity.