bluuebunny/crossref_metadata_2025 huggingface dataset:
Large diameter femoral heads
Authors: Cooper H. J. , Della Valle C. J.
Published: November 2014

Dislocation remains among the most common complications of, and reasons for, revision of both primary and revision total hip replacements (THR). Hence, there is great interest in maximising stability to prevent this complication. Head size has been recognised to have a strong influence on the risk of dislocation post-operatively. As femoral head size increases, stability is augmented, secondary to an increase in impingement-free range of movement. Larger head sizes also greatly increase the ‘jump distance’ required for the head to dislocate in an appropriately positioned cup. Level-one studies support the use of larger diameter heads as they decrease the risk of dislocation following primary and revision THR. Highly cross-linked polyethylene has allowed us to increase femoral head size, without a marked increase in wear. However, the thin polyethylene liners necessary to accommodate larger heads may increase the risk of liner fracture and larger heads have also been implicated in causing soft-tissue impingement resulting in groin pain. Larger diameter heads also impart larger forces on the femoral trunnion, which may contribute to corrosion, metal release, and adverse local tissue reactions. Alternative large bearings including large ceramic heads and dual mobility bearings may mitigate some of these risks, and several of these devices have been used with clinical success.

Cite this article: Bone Joint J 2014;96-B(11 Suppl A):23–6.
The neuromuscularly challenged patient
Authors: Kraay M. J. , Bigach S. D.
Published: November 2014

Degenerative problems of the hip in patients with childhood and adult onset neuromuscular disorders can be challenging to treat. Many orthopaedic surgeons are reluctant to recommend total hip replacement (THR) for patients with underlying neuromuscular disorders due to the perceived increased risks of dislocation, implant loosening, and lack of information about the functional outcomes and potential benefits of these procedures in these patients. Modular femoral components and alternative bearings which facilitate the use of large femoral heads, constrained acetabular components and perhaps more importantly, a better understanding about the complications and outcomes of THR in the patient with neuromuscular disorders, make this option viable. This paper will review the current literature and our experience with THR in the more frequently encountered neuromuscular disorders.

Cite this article: Bone Joint J 2014;96-B(11 Suppl A):27–31.
A mini-anterior approach to the hip for total joint replacement: optimising results
Authors: Mirza A. J. , Lombardi Jr A. V. , Morris M. J. , Berend K. R.
Published: November 2014

Direct anterior approaches to the hip have gained popularity as a minimally invasive method when performing primary total hip replacement (THR). A retrospective review of a single institution joint registry was performed in order to compare patient outcomes after THR using the Anterior Supine Intermuscular (ASI) approach versus a more conventional direct lateral approach. An electronic database identified 1511 patients treated with 1690 primary THRs between January 2006 and December 2010. Our results represent a summary of findings from our previously published work. We found that patients that underwent an ASI approach had faster functional recovery and higher Harris hip scores in the early post-operative period when compared with patients who had a direct lateral approach The overall complication rate in our ASI group was relatively low (1.7%) compared with other series using the same approach. The most frequent complication was early periprosthetic femoral fractures (0.9%). The dislocation rate in our series was 0.4% and the prosthetic joint infection rate was 0.1%. We suggest that the ASI approach is acceptable and safe when performing THR and encourages early functional recovery of our patients.

Cite this article: Bone Joint J 2014;96- B(11 Suppl A):32–5.
Why knee replacements fail in 2013
Authors: Lombardi Jr A. V. , Berend K. R. , Adams J. B.
Published: November 2014

Previous studies of failure mechanisms leading to revision total knee replacement (TKR) performed between 1986 and 2000 determined that many failed early, with a disproportionate amount accounted for by infection and implant-associated factors including wear, loosening and instability. Since then, efforts have been made to improve implant performance and instruct surgeons in best practice. Recently our centre participated in a multi-centre evaluation of 844 revision TKRs from 2010 to 2011. The purpose was to report a detailed analysis of failure mechanisms over time and to see if failure modes have changed over the past 10 to 15 years. Aseptic loosening was the predominant mechanism of failure (31.2%), followed by instability (18.7%), infection (16.2%), polyethylene wear (10.0%), arthrofibrosis (6.9%) and malalignment (6.6%). The mean time to failure was 5.9 years (ten days to 31 years), 35.3% of all revisions occurred at less than two years, and 60.2% in the first five years. With improvements in implant and polyethylene manufacture, polyethylene wear is no longer a leading cause of failure. Early mechanisms of failure are primarily technical errors. In addition to improving implant longevity, industry and surgeons must work together to decrease these technical errors. All reports on failure of TKR contain patients with unexplained pain who not infrequently have unmet expectations. Surgeons must work to achieve realistic patient expectations pre-operatively, and therefore, improve patient satisfaction post-operatively.

Cite this article: Bone Joint J 2014;96-B(11 Suppl A):101–4.
Acetabular distraction
Authors: Sheth N. P. , Melnic C. M. , Paprosky W. G.
Published: November 2014

Acetabular bone loss is a challenging problem facing the revision total hip replacement surgeon. Reconstruction of the acetabulum depends on the presence of anterosuperior and posteroinferior pelvic column support for component fixation and stability. The Paprosky classification is most commonly used when determining the location and degree of acetabular bone loss. Augments serve the function of either providing primary construct stability or supplementary fixation.

When a pelvic discontinuity is encountered we advocate the use of an acetabular distraction technique with a jumbo cup and modular porous metal acetabular augments for the treatment of severe acetabular bone loss and associated chronic pelvic discontinuity.

Cite this article: Bone Joint J 2014;96-B(11 Suppl A):36–42.
Advances in pain management
Authors: Berend M. E. , Berend K. R. , Lombardi Jr A. V.
Published: November 2014

Over the past 30 years there have been many improvements in implant fixation, correction of deformity, improved polyethylene wear, and survival after knee replacement. The work over the last decade has focused on less invasive surgical techniques, multimodal pain management protocols, more rapid functional recovery and reduced length of stay, aiming to minimise the side effects of treatment while maintaining function and implant durability. When combined and standardised these pre-, intra- and post-operative factors have now facilitated outpatient knee replacement procedures for unicompartmental replacement, patella femoral arthroplasty and total knee replacement (TKR).

We have found liposomal bupivacaine, with potential for longer therapeutic action, to be a helpful adjunct and describe our current pain management program. The next step in our multimodal program is to improve the duration of patient satisfaction and reduce cost and length of stay after TKR.

Cite this article: Bone Joint J 2014;96-B(11 Suppl A):7–9.
The problem total knee replacement
Authors: Vince K. G.
Published: November 2014

There are many reasons why a total knee replacement (TKR) may fail and qualify for revision. Successful revision surgery depends as much on accurate assessment of the problem TKR as it does on revision implant design and surgical technique. Specific modes of failure require specific surgical solutions. Causes of failure are often presented as a list or catalogue, without a system or process for making a decision. In addition, strict definitions and consensus on modes of failure are lacking in published series and registry data. How we approach the problem TKR is an essential but neglected aspect of understanding knee replacement surgery. It must be carried out systematically, comprehensively and efficiently. Eight modes of failure are described: 1) sepsis; 2) extensor discontinuity; 3) stiffness; 4) tibial- femoral instability; 5) patellar tracking; 6) aseptic loosening and osteolysis; 7) periprosthetic fracture and 8) component breakage. A ninth ‘category’, unexplained pain is an indication for further investigation but not surgery.

Cite this article: Bone Joint J 2014;96-B(11 Suppl A):105–11.
Cartilage restoration of the hip using fresh osteochondral allograft
Authors: Khanna V. , Tushinski D. M. , Drexler M. , Backstein D. B. , Gross A. E. , Safir O. A. , Kuzyk P. R.
Published: November 2014

Cartilage defects of the hip cause significant pain and may lead to arthritic changes that necessitate hip replacement. We propose the use of fresh osteochondral allografts as an option for the treatment of such defects in young patients. Here we present the results of fresh osteochondral allografts for cartilage defects in 17 patients in a prospective study. The underlying diagnoses for the cartilage defects were osteochondritis dissecans in eight and avascular necrosis in six. Two had Legg-Calve-Perthes and one a femoral head fracture. Pre-operatively, an MRI was used to determine the size of the cartilage defect and the femoral head diameter. All patients underwent surgical hip dislocation with a trochanteric slide osteotomy for placement of the allograft. The mean age at surgery was 25.9 years (17 to 44) and mean follow-up was 41.6 months (3 to 74). The mean Harris hip score was significantly better after surgery (p < 0.01) and 13 patients had fair to good outcomes. One patient required a repeat allograft, one patient underwent hip replacement and two patients are awaiting hip replacement. Fresh osteochondral allograft is a reasonable treatment option for hip cartilage defects in young patients.

Cite this article: Bone Joint J 2014;96-B(11 Supple A):11–16.
Autogenous cultured growth plate chondrocyte transplantation in the treatment of physeal injury in rabbits
Authors: Tomaszewski R. , Bohosiewicz J. , Gap A. , Bursig H. , Wysocka A.
Published: November 2014

Objectives

The aim of this experimental study on New Zealand’s white rabbits was to investigate the transplantation of autogenous growth plate cells in order to treat the injured growth plate. They were assessed in terms of measurements of radiological tibial varus and histological characteristics.

Methods

An experimental model of plate growth medial partial resection of the tibia in 14 New Zealand white rabbits was created. During this surgical procedure the plate growth cells were collected and cultured. While the second surgery was being performed, the autologous cultured growth plate cells were grafted at the right tibia, whereas the left tibia was used as a control group.

Results

Histological examinations showed that the grafted right tibia presented the regular shape of the plate growth with hypertrophic maturation, chondrocyte columniation and endochondral calcification. Radiological study shows that the mean tibial deformity at the left angle was 20.29° (6.25 to 33) and 7.21° (5 to 10) in the right angle.

Conclusion

This study has demonstrated that grafting of autogenous cultured growth plate cells into a defect of the medial aspect of the proximal tibial physis can prevent bone bridge formation, growth arrest and the development of varus deformity. Cite this article: Bone Joint Res 2014;3:310–16
Acute effects of restraint, shock and training in the elevated T-Maze on noradrenaline and serotonin systems of the prefrontal cortex.
Authors: García Saldívar Norma Laura , Reyes González López María , Monroy Juana , Domínguez Roberto , Cruz Morales Sara Eugenia
Published: November 2014

The prefrontal cortex (PFC) participates in cognitive functions and stress regulation. Noradrenaline (NA) and serotonin (5-HT) levels in some regions of the central nervous system are modified by acute stress. The effects depend on the type of stressor and the time elapsed between the presence of the stressor and the assessment. The aims of the present study were to assess the acute effect of different stressors on NA and 5-HT activities in the PFC and its relation with corticosterone levels. Independent groups of male Wistar rats (250-280 g) were submitted to restraint, footshock or training in the elevated T-maze (ETMT). The animals were sacrificed immediately (T0) or one hour (T1) after stress exposure. An untreated group sacrificed concurrently with treated animals was included as control. Samples of the PFC were dissected and the concentration of NA, 5-HT and their metabolites were measured by HPLC. Corticosterone levels were measured in serum. None of the treatments modified NA levels in the PFC. Animals exposed to footshock or ETMT showed significantly higher concentrations of 5-HT at T0. Restraint and footshock treatments were associated with higher corticosterone levels at T0 and T1 after the respective treatment. Taken together the results show that in the PFC, the noradrenergic and serotonergic systems, and the corticosterone levels respond in different ways to different stressors.
Alteraciones neuropsicológicas asociadas en pacientes con infarto lacunar.
Authors: Ledesma Amaya Luis I. , Salvador Cruz Judith , Rodríguez Agudelo Yaneth , Valencia Flores Matilde , Arauz Antonio
Published: November 2014

Existe poca evidencia del deterioro cognoscitivo que defina el perfil del paciente con Infarto Lacunar (IL). El propósito de este estudio fue identificar las alteraciones neuropsicológicas en este tipo de pacientes. La muestra estuvo compuesta por 16 pacientes con IL y 16 participantes sanos con una edad promedio de 63 ± 9.41 y 64.75 ± 9.06 años y una escolaridad de 7.55 ± 4.34 y 7.94 ± 3.51, respectivamente. Se valoró la función cognoscitiva mediante un instrumento de tamizaje y una batería neuropsicológica. El análisis estadístico se llevó a cabo a través de la prueba Kruskal-Wallis y la U de Man-Whitney. Los pacientes con IL se caracterizan por la alteración de dominios como planeación, fluidez verbal, cambio atencional, habilidad visoconstructiva y velocidad de procesamiento de la información (p < 0.050). El IL se relaciona con el deterioro del funcionamiento ejecutivo y de velocidad de procesamiento, debido a la interrupción de circuitos frontocortico-subcorticales asociados con su correcto desempeño.
Country-Level Performance of New Experience Products in a Global Rollout: The Moderating Effects of Economic Wealth and National Culture
Authors: Griffith David A. , Yalcinkaya Goksel , Rubera Gaia
Published: November 2014

International marketing manager decisions pertaining to a new experience product's global rollout are critical to the product's country-level performance. Extending work on the lead–lag and success-breeds-success effects, the authors examine how the country-specific factors of economic wealth and national culture influence the effects of a new experience product's global rollout decisions (i.e., the time lag from initial lead country introduction to target country introduction and the number of countries in which the product was introduced before its introduction in the target country) on the product's country-level performance. The authors employ hierarchical linear modeling and, from an examination of 259 unique movies gathered from 16 countries, corresponding to 2,523 total entries between 2006 and 2007, find significant interaction effects between a country's economic wealth and national culture and time lag and target country position on the new experience product's country-level performance. The authors conclude with a discussion of the theoretical and practical implications.
The Importance of Strategic Fit between Host–Home Country Similarity and Exploration Exploitation Strategies on Small and Medium-Sized Enterprises’ Performance: A Contingency Perspective
Authors: Cui Annie Peng , Walsh Michael F. , Zou Shaoming
Published: November 2014

The impact of host–home country similarity on firm performance has long been debated in the international marketing literature with inconclusive, if not contradictory, findings. Taking a contingency perspective, this study proposes that a small or medium-sized enterprise's (SME's) global market performance depends on the strategic fit between its exploration and exploitation strategies and its host country choice. The results of a survey of chief executive officers and senior international marketing managers of SMEs in the United States show that the impact of host–home country similarity on SMEs’ international performance is moderated by their choice of exploration and exploitation strategies. Specifically, host–home country similarity has a positive impact on an SME's international performance when the firm adopts an exploitation strategy. Conversely, host–home country similarity has a negative impact on an SME's international performance when it adopts an exploration strategy. Directly addressing the long-standing host–home country similarity debate in the international marketing literature, this study sheds additional light on the drivers for SMEs’ internationalization success.
The Impact of Category Prices on Store Price Image Formation: An Empirical Analysis
Authors: Lourenço Carlos J.S. , Gijsbrechts ELS , Paap Richard
Published: November 2014

The authors empirically explore how consumers update beliefs about a store's overall expensiveness. They estimate a learning model of store price image (SPI) formation with the impact of actual prices linked to category characteristics on a unique data set combining consumers’ store visit and purchase information with their price perceptions. The results identify characteristics that drive categories’ store price signaling power for different store formats. “Big ticket” categories with a narrow price range strongly shape consumers’ store price beliefs, whereas (volatile) prices of frequently or deeply promoted categories are less influential. At traditional supermarkets, consumers anchor and elaborate on prices of storable categories bought in large quantities and for which quality differentiation is high. For hard discounters, however, SPI is mostly shaped by frequently bought categories with narrow assortments. Notably, categories’ SPI signaling power is not proportional to their share of wallet at either type of chain. Managers can use these results to identify “Lighthouse” categories that signal low prices, yet make up a small portion of store spending, and in which price cuts do not overly hurt revenue.
Effects of Internet Display Advertising in the Purchase Funnel: Model-Based Insights from a Randomized Field Experiment
Authors: Hoban Paul R. , Bucklin Randolph E.
Published: November 2014

This study examines the effects of Internet display advertising using cookie-level data from a field experiment at a financial tools provider. The experiment randomized assignment of cookies to treatment (firm ads) and control conditions (charity ads), enabling the authors to handle different sources of selection bias, including targeting algorithms and browsing behavior. They analyze display ad effects for users at different stages of the company's purchase funnel (i.e., nonvisitor, visitor, authenticated user, and converted customer) and find that display advertising positively affects visitation to the firm's website for users in most stages of the purchase funnel, but not for those who previously visited the site without creating an account. Using a binary logit model, the authors calculate marginal effects and elasticities by funnel stage and analyze the potential value of reallocating display ad impressions across users at different stages. Expected visits increase almost 10% when display ad impressions are partially reallocated from nonvisitors and visitors to authenticated users. The authors also show that results from the controlled experiment data differ significantly from those computed using standard correlational approaches.
Die Einführung einer allgemeinen Wissenschaftsschranke im Urheberrecht – Anforderungen aus Sicht des Deutschen Bibliotheksverbandes
Authors: Heeg Jürgen
Published: November 2014

Der Deutsche Bibliotheksverband (DBV) fordert die Einführung einer allgemeinen Wissenschaftsschranke im Urheberrecht. Eine einheitliche allgemeine Bildungs- und Wissenschaftsschranke mit einer pauschalen Regelung zur Nutzung von Werken im digitalen Zeitalter sollte nach Überzeugung des Deutschen Bibliotheksverbandes die bisherigen einzelnen Schrankenparagrafen ergänzen und ersetzen. In zahlreichen Ausführungen hinkt das derzeit geltende deutsche Recht deutlich der digitalen Welt und der gängigen Praxis hinterher.
Bibliotheksmagazin im ehemaligen Kuhstall
Authors: Scheer Hans-Josef
Published: November 2014

In der Abtei Maria Laach, einem benediktinischen Kloster in der Eifel, fand ein Bibliotheksmagazin mit über 7.000 Regalmetern Platz in einem komplett sanierten, massiven landwirtschaftlichen Gebäude aus den 1860er Jahren. Das Raumklima wird überwiegend mit einer automatisierten, elektronisch gesteuerten Fensterlüftung konditioniert.
Der E-Bibliotheksschein Anglophone Studien – ein virtueller Lernraum als Kooperationsprojekt zwischen Universitätsbibliothek und einem Fach
Authors: Borchers Melanie , Graf Dorothee
Published: November 2014

Der vorliegende Text stellt einen an der Universität Duisburg-Essen entwickelten Moodle-Kursraum zur Einführung in die fachwissenschaftliche Literaturrecherche vor. Das Blended-Learning-Projekt wurde gemeinsam von der Fachreferentin der Universitätsbibliothek mit Fachwissenschaftlerinnen des Instituts für Anglophone Studien entwickelt und in den Routinebetrieb überführt. Neben der kooperativen Durchführung ist die curriculare Einbindung des Bibliotheksscheins in die anglistischen Studiengänge eine Besonderheit des Online-Kurses. Konzept, Inhalte und Organisation werden erläutert.
Discussion of Identification, Estimation and Approximation of Risk under Interventions that Depend on the Natural Value of Treatment Using Observational Data, by Jessica Young, Miguel Hernán, and James Robins
Authors: van der Laan Mark J. , Luedtke Alexander R. , Díaz Iván
Published: November 2014

Young, Hernán, and Robins consider the mean outcome under a dynamic intervention that may rely on the natural value of treatment. They first identify this value with a statistical target parameter, and then show that this statistical target parameter can also be identified with a causal parameter which gives the mean outcome under a stochastic intervention. The authors then describe estimation strategies for these quantities. Here we augment the authors’ insightful discussion by sharing our experiences in situations where two causal questions lead to the same statistical estimand, or the newer problem that arises in the study of data adaptive parameters, where two statistical estimands can lead to the same estimation problem. Given a statistical estimation problem, we encourage others to always use a robust estimation framework where the data generating distribution truly belongs to the statistical model. We close with a discussion of a framework which has these properties.
Patient Outcomes and Cost Effects of Medicaid Formulary Restrictions on Antidepressants
Authors: Seabury Seth A. , Lakdawalla Darius N. , Walter Deborah , Hayes John , Gustafson Thomas , Shrestha Anshu , Goldman Dana P.
Published: November 2014

Many state Medicaid programs have implemented policies designed to reduce spending on prescription drugs by restricting access to branded products. For patients with major depressive disorder, formulary restrictions could severely limit access to antidepressant therapies and disrupt care. We linked data on patient outcomes and spending from 24 state Medicaid programs to information on formulary restrictions from 2001 to 2008. Outcomes included frequency of MDD-related hospitalizations and ER visits per patient and total healthcare spending. We estimated the effect of the policies on patient outcomes and spending using a difference-and-difference approach. We found that restricting access to antidepressants increased the probability of an MDD-related hospitalization by 1.7 percentage points (16.6%). Furthermore, we found no evidence that these restrictions resulted in any net savings for Medicaid.
The risks of mixing dependency lengths from sequences of different length
Authors: Ferrer-i-Cancho Ramon , Liu Haitao
Published: November 2014

Mixing dependency lengths from sequences of different length is a common practice in language research. However, the empirical distribution of dependency lengths of sentences of the same length differs from that of sentences of varying length. The distribution of dependency lengths depends on sentence length for real sentences and also under the null hypothesis that dependencies connect vertices located in random positions of the sequence. This suggests that certain results, such as the distribution of syntactic dependency lengths mixing dependencies from sentences of varying length, could be a mere consequence of that mixing. Furthermore, differences in the global averages of dependency length (mixing lengths from sentences of varying length) for two different languages do not simply imply a priori that one language optimizes dependency lengths better than the other because those differences could be due to differences in the distribution of sentence lengths and other factors.
The ancient Libyco-Berber inscriptions of Canary Islands – Part 1
Authors: Melka Tomi S.
Published: November 2014

Working out the Old Libyco-Berber (LB) writings found on the Canary Islands (CI) is a long and painstaking task. Scholars have struggled with their provenance, meaning(s), common and different features with North African cognates, scribal communities, and the assumed time-span.

In this review-paper, laying theoretical guiding lines for the understanding of the successive patterns and signs is considered an advantage. Nonetheless, high-staked claims as for the origin and the decipherment of the inscriptions are eluded, with plausible scenarios being offered. While corpus enlargement and qualitative and quantitative methods stand for the correct pursuit of the Libyco-Berber scholarship, multi-disciplinary and coordinated research should gain momentum too.
Insults or Acts of Identity? The Role of Stylization in Multilingual Discourse
Authors: Higgins Christina
Published: November 2014

This article discusses how stylization sheds light on the role of authenticity as an increasingly relevant concept in sociolinguistics. Building on research on style, crossing, and mock language use, the article demonstrates how multilingual stylization provides speakers with a wider range of resources for navigating and negotiating borders and identities. Stylization is increasingly important since modernist linkages between language and the categories of nation and ethnicity still exert authority over how authenticity is ascribed. At the same time, transcultural flows offer speakers more opportunity to cross and challenge borders linguistically. When speakers begin to stylize one another’s languages, however, the thorny issue of interpretation arises since stylized speech can be understood as mocking the speakers of the language being stylized. While studies of dialect stylization have explored these issues for over a decade, research on multilingual stylization is less developed. Accordingly, this special issue examines the role that authenticity plays in the production and interpretation of stylization. A continuum of stylization is presented that places mocking on one end (to refer to stylization that leads to insult) and style on the other (to represent acts of identity), while keeping open the possibility that all acts of stylization can ultimately be understood as acts of identity, given the right framings and stances expressed by the speakers.
The application of the algorithm of the individualization of students’ physical education process
Authors: Barybina L.N. , Kolomiec N.A. , Komotskaja V.A.
Published: November 2014

Purpose: theoretically and experimentally justify the use of the algorithm of physical education process individualization in universities taking into account the psychophysiological features of students. Material: the study involved 413 students. It was defined indicators of the level of physical fitness and functional status, psycho-physiological features. Results: it was worked out the algorithm of individualization of students’ physical education process. It was defined the structure of the complex preparedness and it was developed models of characteristics of students - representatives of different sports specializations. It was established that for the successful construction of the training process, it is necessary to combine the parameters of physical, functional training and physiological indicators into a single integral evaluation of the individual characteristics of students. It was shown that at the students of the experimental group was improved indicators of functional, psychophysiological capabilities and physical preparedness. Conclusions: the application of the algorithm of the individualization of process of physical education enhances the functionality of the students.
An investigation of individual functionality football referees qualifications
Authors: Berezka S.M. , Chopilko T.G.
Published: November 2014

Purpose: determine the level of individual functionality referees qualifications. Objective of the study was to determine the physiological parameters characterizing the functionality of football referees qualifications. Material : mainly experiment involved 29 highly qualified referees aged 21-45 years. In the main experiment participated 29 referees and 40 assistant referees (n = 69) Ukrainian Premier League. Results: found that the means and methods that use Ukrainian football referee high qualification in the special physical training for a competition, are not effective enough. Consequence of poorly planned training process is to increase the number of wrong decisions of the referees during the match associated with poor motor activity. Conclusions: data obtained in the course of educational research confirmed our theory about the necessity of individualization process special physical training qualifications of referees, which would entail increasing the functional and motor abilities of the referees, and as a consequence of better and successful completion of the work.
Comparative analysis of competitive activity parameters of amateur boxers high qualification
Authors: Martsiv V.P.
Published: November 2014

Purpose : analyze competitive activity of boxers of high qualifications in different time periods in the development of boxing. Material : 142 analyzed boxing matches at the Olympic Games 2012. Results : present indicators of competitive activity of boxers. Shows the comparative characteristics of the battles that took place under different formulas of competitive activity in different periods of the development of amateur boxing. It is shown that increasing the skills of athletes appear to increase the density of hits in combat. As a result of innovations in the rules of the competition, boxing match was different higher intensity combat, attacking actions began to perform at a higher speed mode. Conclusions : As a result of the transition to the new formula of fighting to increase the density of the match. Also a 3-fold increase in the number of strikes indicator, surviving on target. Increased efficiency factor strikes, which leads to the expansion of effective technical and tactical actions.
BASIC TECHNICAL SKILLS (THROWS) IN 17-19-YEAR-OLD JUDOKAS
Authors: Jagiello Wladyslaw , Dornowski Marcin , Wolska Beata
Published: November 2014

Purpose: The purpose of the research was to determine basic technical skills (throws) in 17-19-year-old judokas and the level of their performance. Material: The study involved 30 judo athletes (aged 17-19). Results: To determine the athletes’ basic technical skills (throws), an analysis of source materials and a diagnostic survey were used. To determine the level of technical skills, the method of expert assessment was applied. Statistical software package Statistica 8 was used in the statistical analysis. In the coaches’ opinion, 17-19-year-old judokas have a specific, characteristic of this age group, set of basic technical skills (throws) aptly defining their technical preparation. Conclusions: The tested group of judokas exhibited the highest level of demonstrating throws of the koshi-waza (hip) group, and the lowest one of the ashi-waza (foot) group.
THE EFFECT OF SLEEP DEPRIVATION ON SERUM IGG RESPONSES TO AEROBIC ACTIVITY IN COLLEGE STUDENT ATHLETES
Authors: Saeed Jamshidi Far , Mirza Hossein Norouzi Kamareh
Published: November 2014

Background & Aims: Sleep is a restorative process for the immune system. There are many situations in which sleep is disturbed prior to an athletic event. However, the effect of sleep deprivation on immune indices in response to exercise remains unknown. The aim of this study was to investigate the effects of sleep deprivation on serum IgG responses to aerobic activity. Materials & Methods: In this quasi-experimental study, 10 male physical education students were voluntarily participated. Study was performed in two separate occasions; control and experimental within two weeks. In the control occasion, normal sleep and aerobic activity and in the experimental occasion, sleep deprivation and aerobic activity was applied. Aerobic activity was performed on bicycle ergometer for 30 minutes at intensity of 70 to 75 percent of maximum heart rate. Changes in serum IgG concentrations in pre-test, before and after aerobic activity in both occasions were analyzed by the two repeated measures ANOVA and dependent T-test using SPSS software. Results: The results showed that sleep deprivation not significantly effect on Serum IgG response to aerobic activity (p=0.130). Also, aerobic activity not significantly effect on Serum IgG concentration (p=0.357). But sleep deprivation caused a significantly increase in serum IgG concentration (p=0.035). Conclusion: No significant effect of sleep deprivation on serum IgG concentrations response to aerobic activity.
Mass of the Lightest Neutral CP-even Higgs in the Supersymmetric Minimal Reduced 3-3-1 Mode
Authors: Hung Ha Thanh , Hue Le Tho , Hang Nguyen Thi Thu , Thu Pham Ngoc
Published: November 2014

We calculate the mass of the lightest neutral CP-even Higgs in the frame work of the supersymmetric reduced minimal 3-3-1 model (SUSYRM331) at one-loop level. Like MSSM, at tree level this value of mass is smaller than that of \(m_Z=92\) GeV, inconsistent with value of 125 GeV measured by recent experiment. In this work we prove that the mass of the lightest neutral CP-even Higgs will get the consistent value if loop corrections are included.
The Role of Calculation Model in Experimentally Determining Thermal Energy Generated in Laser Rod of Solid Laser
Authors: Thinh Pham Vu , Anh Le Ngoc
Published: November 2014

In many solid state laser pumped by flash lamps, thermal source distributed in laser rod is heterogeneous, complicated and cannot be described by explicit functions. Pumping process can be considered an adiabatic process. Thermal gradients generated within the laser rod are the result of the inhomogeneous distribution of absorbed energy. Calculation model and numerical method can help to determine the relation between the experimental results and thermal energy generated in laser rod.
The Vatly Radio Telescope: Performance Study
Authors: Phuong Nguyen Thi , Diep Pham Ngoc , Pierre Darriulat , Nhung Pham Tuyet , Anh Pham Tuan , Dong Pham Ngoc , Hoai Do Thi , Thao Nguyen Thi
Published: November 2014

A detailed account of the performance of the VATLY radio telescope, operated in HaNoi on and near the 21 cm HI line, is given. Drift scans across the Sun are used to measure the dependence of the gain on frequency and power, revealing small nonlinearities at or below the percent level. Interferences associated with the electromagnetic pollution in the Ha Noi environment are described. The sensitivity of the instrument is discussed and demonstrated with the detection of the Crab. The reliability of the measurement of the spectral flux density is illustrated by comparing solar flux data measured in Ha Noi and at the Australian observatory of Learmonth.
Investigation of Sodium Manganese Oxide Nanowires Synthesized by Hydrothermal Method for Alkaline Ion Battery
Authors: Tan Ta Anh , Phuong Do Thi , Oanh Nguyen Thi Tu , Mai Do Xuan , Chung Hoang Vu , Chi Le Ha , Chien Dang Tran , Long Pham Duy
Published: November 2014

Sodium Manganese Oxide (NaxMnO2) has attracted much attention as cathode materials for alkaline ion battery due to the ability of fast charge and discharge ion Na+, in particular in nanoscale. We report on the synthesis of NaxMnO2 nanowires via hydrothermal synthesis route from Mn2O3 and NaOH solution. The morphological observation indicates that the obtained Na0.44MnO2 nanowires with diameters of about 20-30 nm, length up to several micrometers were formed by this process. The electrochemical properties of fabricated materials were investigated by means of cyclic voltammetry technique and show that Sodium Manganese Oxide (NaxMnO2) is a promising material in the field of research and fabrication alkaline ion battery.
Study of Temperature Effect on Luminous Flux of High Power Chip on Board Light Emitting Diode
Authors: Quan Cao Xuan , Xuan Vu Khanh , Lan Anh Luu Thi , Son Vo Thach
Published: November 2014

High power chip on board light emitting diode (HPCOBLED) are a promising solid state light technology for a variety of lighting applications. In this study, we studied temperature effect on luminous flux of HPCOBLED using VMI-PR-001 system of Vietnam Metrology Institute. The results according to the temperature Tc is increasing, luminous flux reduced. Especially HPCOBLED is larger power, decreasing luminous flux is larger. Reason of this is chance power.   HPCOBLED model describes the temperature affection on luminous flux of HPCOBLED. The results of HPCOBLED model matched with that measured by the luminous flux measurement system (VMI-PR-001, Vietnam).
Magnetic Properties of Quantum Square Heisenberg Antiferromagnet with Frustration: an Auxiliary Fermion Approach
Authors: Nga Pham Thi Thanh , Thang Nguyen Toan
Published: November 2014

We study the magnetic ordered phases of the spin \(-\frac{1}{2}\) Heisenberg antiferromagnetic model with nearest \(J_1\) and next nearest neighbor \(J_2\) exchange interactions on the square lattice using fermionic representation of spin operators within Popov-Fedotov approach.The unphysical states are eliminated on each site by introducing an imaginary chemical potential. Working in local coordinate system for every site we investigate the different ordered phases in dependence on exchange parameters. At \(T = 0\) we recover the conventional spin wave results.
Midkine Regulates BP through Cytochrome P450–Derived Eicosanoids
Authors: Sato Yuka , Sato Waichi , Maruyama Shoichi , Wilcox Christopher S. , Falck John R. , Masuda Tomohiro , Kosugi Tomoki , Kojima Hiroshi , Maeda Kayaho , Furuhashi Kazuhiro , Ando Masahiko , Imai Enyu , Matsuo Seiichi , Kadomatsu Kenji
Published: November 2014

The effects of endothelium-derived hyperpolarizing factors have been attributed to cytochrome P450–derived epoxyeicosatrienoic acids (EETs), but the regulation and role of EETs in endothelial dysfunction remain largely unexplored. Hypertension is a primary risk factor for renal dysfunction, which is frequently accompanied by various systemic diseases induced by endothelial dysfunction in the microcirculation. We previously reported that the endothelial growth factor midkine (MK) enhances hypertension in a model of CKD. Here, we investigated the hypothesis that MK regulates EET activity and thereby BP. MK gene-deleted mice were resistant to hypertension and developed less glomerulosclerosis and proteinuria after administration of a nitric oxide synthase (NOS) inhibitor in the setting of uninephrectomy. The hypertension observed in uninephrectomized wild-type mice after NOS inhibition was ameliorated by anti-MK antibody. MK-deficient mice produced higher amounts of EETs, and EETs dominantly regulated BP in these mice. Furthermore, MK administration to MK-deficient mice recapitulated the BP control observed in wild-type mice. EETs also dominantly regulated renal blood flow, which may influence renal function, in MK-deficient mice. Taken together, these results suggest that the MK/EET pathway is physiologically engaged in BP control and could be a target for the treatment of hypertension complicated by endothelial dysfunction.
Plasma Galanin is a Biomarker for Severity of Major Depressive Disorder
Authors: Wang Yong-Jun , Yang Yu-Tao , Li Hui , Liu Po-Zi , Wang Chuan-Yue , Xu Zhi-Qing David
Published: November 2014

Objective:

This study investigated the association between plasma galanin level and depression severity.

Methods:

The severity of depression symptoms of 79 patients with major depressive disorder (MDD; 52 women and 27 men, 71 patients in onset, 8 in remission) was assessed using the 17-item Hamilton Depression Rating Scale. Venous fasting blood samples (5 mL) were taken from the 79 MDD patients, 35 healthy siblings, and 19 healthy controls, and plasma samples were prepared. Galanin levels in the plasma were measured by radioimmunoassay.

Results:

Plasma galanin in MDD patients was significantly higher than that of remission patients, healthy siblings, or healthy controls ( P < 0.05) There was no significant difference between the healthy sibling and healthy control groups ( P = 0.924). Plasma galanin of remission patients was also significantly higher than that of healthy controls ( P < 0.05). There was no significant correlation between age and galanin levels in the 79 patients ( r = 0.053, P = 0.646), nor was there a correlation between age and galanin levels when patients were stratified by gender ( P > 0.05). There was a significant positive correlation between plasma galanin levels and depression severity in women MDD patients ( r = 0.329, df = 42, P = 0.020), but not in men patients.

Conclusions:

Plasma galanin levels may be an important biomarker for depression severity, especially in female patients.
Relationship of Serious Psychological Distress to Quality of Life in Adults with Diabetes
Authors: Dismuke Clara E. , Hernandez-Tejada Melba A. , Egede Leonard E.
Published: November 2014

Objective:

To examine the association between serious psychological distress (SPD) and the Physical and Mental Health components of Quality of Life (QOL) while controlling for depression in a national sample of adults with diabetes.

Methods:

SPD was assessed in 1,659 adults with diabetes who participated in the 2007 Medical Care Expenditure Survey (MEPS). SPD was measured by the 6-item Kessler scale. Depression was assessed with the PHQ-2 screen. Quality of life was measured with the physical (PCS) and mental (MCS) components of the SF-12. We used multiple linear regression to assess the relationship between SPD and quality of life while controlling for relevant covariates and depression screen results to assess the independent effect of SPD on QOL above and beyond the effect of depression.

Results:

Among US adults with diabetes, 9% had SPD and 15.4% screened positive for depression. Among those with SPD, 85.8% had depression and among those with depression, 50.5% had SPD. In the adjusted model for sociodemographic factors and comorbidities, SPD was significantly associated with lower PCS scores (−5.51 95% CI −7.55; −3.45) and MCS scores (−18.99 95% CI −20.81; −17.18). In the adjusted model that also controlled for depression, SPD was still significantly associated with lower PCS scores (−3.03 95% CI −5.63; −0.43) and MCS scores (−9.46 95% CI −11.67; −7.24).

Conclusions:

Among U.S. adults, SPD is associated with significantly diminished QOL above and beyond the effects of depression. Targeted interventions to mitigate the adverse effects of SPD are needed, independent of programs to address depression.
Stability of solitary waves for a generalized higher-order Shallow water equation
Authors: Dündar Nurhan , Polat Necat
Published: November 2014

In this work, we consider solitary wave solutions of a generalized
higher-order shallow water equation. We investigate the existence and
stability of solitary waves of the equation.
On the existence of global solutions for a nonlinear Klein-Gordon equation
Authors: Polat Necat , Taskesen Hatice
Published: November 2014

The aim of this work is to study the global existence of solutions for the
Cauchy problem of a Klein-Gordon equation with high energy initial data. The
proof relies on constructing a new functional, which includes both the
initial displacement and the initial velocity: with sign preserving property
of the new functional we show the existence of global weak solutions.
Linear, cyclic and constacyclic codes over S4 = F2 + uF2 + u2F2 + u3F2
Authors: Özger Ödemiş , Kara Ümmü , Yıldız Bahattin
Published: November 2014

In this work, linear codes over the ring S4 = F2 + uF2 + u2F2 + u3F2 are
considered. The Lee weight and gray map for codes over S4 are defined and
MacWilliams identities for the complete, the symmetrized and the Lee weight
enumerators are obtained. Cyclic and (1 + u2)-constacyclic codes over S4 are
studied, as a result of which a substantial number of optimal binary codes of
different lengths are obtained as the Gray images of cyclic and constacyclic
codes over S4.
Extremal binary self-dual codes of lengths 64 and 66 from four-circulant constructions over F2+uF2
Authors: Karadeniz Suat , Yildiz Bahattin , Aydin Nuh
Published: November 2014

A classification of all four-circulant extremal codes of length 32 over F2 +
uF2 is done by using four-circulant binary self-dual codes of length 32 of
minimum weights 6 and 8. As Gray images of these codes, a substantial number
of extremal binary self-dual codes of length 64 are obtained. In particular a
new code with ?=80 in W64,2 is found. Then applying an extension method from
the literature to extremal self-dual codes of length 64, we have found many
extremal binary self-dual codes of length 66. Among those, five of them are
new codes in the sense that codes with these weight enumerators are
constructed for the first time. These codes have the values ?=1, 30, 34,
84, 94 in W66,1.
The Arens triadjoints of some bilinear maps
Authors: Yılmaz Ruşen
Published: November 2014

In this paperwestudy the Arens triadjoints of some bilinear maps on vector lattices. In particular, we prove that, for Archimedean vector lattices A and B, the Arens triadjoint i) T*** : A" x A" ? B" of a positive orthosymmetric
bilinear map T:A x A ? B is positive orthosymmetric, and ii) T***: A" x A" ? A"
of a bi-orthomorphism T : A x A ? A is a bi-orthomorphism. These generalize
results on the order bidual of f -algebras and almost f-algebras in [4].