bluuebunny/crossref_metadata_2025 huggingface dataset:
Expansión de la ciudad en la zona metropolitana de Pachuca: procesos desiguales y sujetos migrantes e inmobiliarios
Authors: Pérez Marcial César Raúl
Published: February 2018

La expansión de la ciudad de Pachuca a la zona metropolitana tiene, por un lado, a inmobiliarias que influyen desde los años ochenta con una oferta de viviendas encima del promedio nacional, sin una demanda real; y, por el otro, a los migrantes indígenas que con precariedad participan de la ampliación de la ciudad. Con una importante distinción entre ambos aspectos, este artículo busca identificar los componentes diferenciales de los actores de la expansión urbana de la ciudad y su expresión inicial en las zonas que ocupan, por lo que es importante definir la actuación institucional que responde a ciertas directrices y a la migración a condiciones estructurales, pues ambas generan una nueva visión del contexto urbano. A partir de posiciones teóricas, y por medio de mediciones funcionales a través de índices de urbanización en el orden estatal y regional, de marginación, de vulnerabilidad y de migración interna, se tiene como resultado la expresión de una estructuración sintética de la zona metropolitana de Pachuca (en adelante, zmp), donde las instituciones e inmobiliarias han creado una imagen idílica de la ciudad y los migrantes han generado zonas de la ciudad en condiciones fortuitas y de amplia fragilidad. Estas situaciones hacen que el proceso de metropolización en Pachuca sea intermitente, dependiente, fragmentado e incompleto.
Análisis de trade-off en el borde de una reserva forestal en el gradiente urbano-rural de Bogotá
Authors: Corrales Roa Elcy , Osorno Acosta Viviana
Published: February 2018

El sistema socio ecológico (en adelante, sse) de la microcuenca de la quebrada San Cristóbal se encuentra localizado en el borde urbano rural de la localidad de Usaquén y la Reserva Forestal de los Cerros Orientales (Bogotá). Este sse ha sido transformado por el fenómeno de crecimiento urbano, lo cual ha generado cambios en el uso del suelo y en la degradación ambiental del ecosistema, y ha afectado la biodiversidad y el servicio ecosistémico (en adelante, se) de aprovisionamiento hídrico. Las decisiones o intervenciones humanas generan compromisos o tradeoff espaciales, temporales y sociales, que se analizan para el caso mencionado. La identificación y posterior análisis de estos trade-offs se hace a partir de diversas fuentes y consultas con diferentes actores. De esta manera se identifican los momentos clave que propiciaron la transformación del ecosistema, los efectos sobre el servicio ecosistémico a diferentes escalas espaciales y el balance de actores sociales que ganan o pierden en el proceso. Finalmente, a partir de las lecciones aprendidas, se encuentran variables y actores sociales clave, posibles escenarios y gestiones orientadas a la conservación o mejoramiento del se.
El arrendamiento residencial en los barrios populares: las redes de relaciones y la generación de compromisos
Authors: Sáenz Acosta Hernando
Published: February 2018

El siguiente documento presenta un análisis del mercado de vivienda en arrendamiento en un barrio popular de la ciudad de Bogotá, y hace énfasis en los compromisos que se celebran entre arrendatarios y arrendadores. Para ello se presenta en un primer momento la metodología empleada en un trabajo de campo realizado entre el 2011 y el 2014 en el barrio Patio Bonito I, localizado al  suroccidente de la ciudad. A partir de la Escuela de Convenciones Francesa como referente teórico, se exploran dos aspectos importantes para el funcionamiento de este mercado residencial: la existencia de redes de relaciones y la celebración de compromisos entre los agentes económicos. Estas características son cruciales para desarrollar una lectura institucional heterodoxa de este tipo de mercado —centrada en el concepto de las convenciones sociales— y comprender así las formas creadas por las comunidades en los barrios populares de la ciudad para su regulación.
A New Unbiased Stochastic Derivative Estimator for Discontinuous Sample Performances with Structural Parameters
Authors: Peng Yijie , Fu Michael C. , Hu Jian-Qiang , Heidergott Bernd
Published: February 2018

In this paper, we propose a new unbiased stochastic derivative estimator in a framework that can handle discontinuous sample performances with structural parameters. This work extends the three most popular unbiased stochastic derivative estimators: (1) infinitesimal perturbation analysis (IPA), (2) the likelihood ratio (LR) method, and (3) the weak derivative method, to a setting where they did not previously apply. Examples in probability constraints, control charts, and financial derivatives demonstrate the broad applicability of the proposed framework. The new estimator preserves the single-run efficiency of the classic IPA-LR estimators in applications, which is substantiated by numerical experiments.

The online appendix is available at https://doi.org/10.1287/opre.2017.1674 .
Generating Maximally Disassortative Graphs with Given Degree Distribution
Authors: van der Hoorn Pim , Prokhorenkova Liudmila Ostroumova , Samosvat Egor
Published: February 2018

We present an algorithm that solves the problem of generating graphs, with a given degree distribution, that are maximally disassortative (with respect to Spearman’s rank correlation). As a result, we obtain a general lower bound for Spearman’s rho on graphs, which depends on the distribution of the probability mass between the head and tail of the size-biased degree distribution.
Pulsed electromagnetic field stimulation may improve fusion rates in cervical arthrodesis in high-risk populations
Authors: Coric D. , Bullard D. E. , Patel V. V. , Ryaby J. T. , Atkinson B. L. , He D. , Guyer R. D.
Published: February 2018

Objectives

Pulsed electromagnetic field (PEMF) stimulation was evaluated after anterior cervical discectomy and fusion (ACDF) procedures in a randomized, controlled clinical study performed for United States Food and Drug Administration (FDA) approval. PEMF significantly increased fusion rates at six months, but 12-month fusion outcomes for subjects at elevated risk for pseudoarthrosis were not thoroughly reported. The objective of the current study was to evaluate the effect of PEMF treatment on subjects at increased risk for pseudoarthrosis after ACDF procedures.

Methods

Two evaluations were performed that compared fusion rates between PEMF stimulation and a historical control (160 subjects) from the FDA investigational device exemption (IDE) study: a post hoc (PH) analysis of high-risk subjects from the FDA study (PH PEMF); and a multicentre, open-label (OL) study consisting of 274 subjects treated with PEMF (OL PEMF). Fisher’s exact test and multivariate logistic regression was used to compare fusion rates between PEMF-treated subjects and historical controls.

Results

In separate comparisons of PH PEMF and OL PEMF groups to the historical control group, PEMF treatment significantly (p < 0.05, Fisher’s exact test) increased the fusion rate at six and 12 months for certain high-risk subjects who had at least one clinical risk factor of being elderly, a nicotine user, osteoporotic, or diabetic; and for those with at least one clinical risk factor and who received at least a two- or three-level arthrodesis.

Conclusion

Adjunctive PEMF treatment can be recommended for patients who are at high risk for pseudoarthrosis. Cite this article: D. Coric, D. E. Bullard, V. V. Patel, J. T. Ryaby, B. L. Atkinson, D. He, R. D. Guyer. Pulsed electromagnetic field stimulation may improve fusion rates in cervical arthrodesis in high-risk populations. Bone Joint Res 2018;7:124–130. DOI: 10.1302/2046-3758.72.BJR-2017-0221.R1.
The phenomenology of Angry Birds: Virtual gravity and distributed proprioception in video game worlds
Authors: Giddings Seth
Published: February 2018

This article explores the nature of sensation, perception and proprioception in contemporary digital and mobile culture, as exemplified in digital games. It argues that the application of theories of the phenomenology of perception to digital media and games needs to be extended and adapted to acknowledge and describe the sensing and proprioceptive abilities of technological bodies (both hardware and software) as well as human bodies. The article explores the idea that the embodied ‘feeling’ (proprioception) of virtual physics, particularly gravity, in gameplay experience must be understood as distributed across and through human and non-human sensing bodies. It will take the popular mobile game Angry Birds as a starting point, but will then explore the achievement of distributed proprioception in other games and games hardware more broadly.
HIDROGEOKIMIA AIRTANAH TIDAK TERTEKAN DI PESISIR BARAT KABUPATEN SERANG DAN PANDEGLANG, PROVINSI BANTEN
Authors: Martosuparno Sudaryanto , Naily Wilda , Maria Rizka
Published: February 2018

Proses hidrogeokimia terjadi karena interaksi antara airtanah dengan air laut. Proses tersebut akan mempengaruhi komposisi kimia di lingkungan pesisir. Untuk mengetahui seberapa jauh interaksi tersebut telah terjadi, dilakukan analisis tipe air berdasarkan jumlah anion dan kation yang paling dominan, dan analisis nisbah ion-ion utama. Pengambilan conto dilakukan di 38 lokasi conto air di pesisir barat Kabupaten Serang dan Pandeglang. Hasil penelitian menunjukkan tipe air didominasi oleh Ca(HCO3)2 55,26%, NaHCO3 39,47%, Ca(SO4)2 2,63% and NaMix 2,63%. Sementara hasil analisis nisbah ion utama Na+/Cl-, Ca2+/Mg2+, dan Ca2+/SO42- mengindikasikan bahwa telah terjadi pencemaran air laut di beberapa dataran alluvial pesisir Pandeglang. Pada sebagian besar pesisir barat Serang dan Pandeglang sedang terjadi proses pencemaran atau intrusi air laut. Occurrence of hydrogeochemical process is due to the interaction between groundwater and sea water. The process will affect the chemical composition in the coastal environment. To find out how far the interaction has taken place, the water type was analysed based on the amount of most dominant anion and cation, and also the major ions ratios. The samplings were conducted in 38 locations on the west coast of Serang and Pandeglang Regencies. Results showed that the water type was dominated by Ca(HCO3)2 55,26%, NaHCO3 39,47%, Ca(SO4)2 2,63% and NaMix 2,63%. While the results of major ion analysis of Na+/Cl-, Ca2+/Mg2+, and Ca2+/SO42- indicated that there has been the sea water pollution in some coastal alluvial plains of Pandeglang. In addition, the process of pollution or sea water intrusion has been occurring on most of the west coast of Serang and Pandeglang.
The central aortic blood pressure and arterial stiffness during the daily monitoring procedure in postmenopausal women with osteoporosis
Authors: Tsarenok Svetlana Yu. , Gorbunov Vladimir V. , Aksenova Tatiana A.
Published: February 2018

Aim: to evaluate the data of the central aortic pressure and arterial stiffness during the daily monitoring procedure in postmenopausal women with osteoporosis.
Methods: 79 postmenopausal women (age from 57 to 78) were examined. All patients were divided into two groups: the first group consisted of 36 women with osteoporosis, the second group consisted of 43 women – control group. A daily monitoring of central aortic pressure and arterial stiffness were performed all women by the apparatus BPLab v.3.2.
Results: increase of the mean daily of systolic, diastolic and mean aortic pressure was found out in women with osteoporosis. The main data of arterial stiffness (PWV, ASI, AASI, PPA) were higher in this group of women. The direct correlation between the data of central aortic blood pressure, arterial stiffness and presence of osteoporotic fractures and their number, as well as indicators of absolute ten-year risk of osteoporotic fractures and hip fracture was revealed. Pathological profiles of systolic pressure in aortae were more frequent in patients with osteoporosis. The type of hyperdispers was predominant.
Conclusions: the results obtained may indicate a possible relationship between cardiovascular diseases and osteoporosis.
Denosumab treatment in patients with different courses of osteoporosis
Authors: Rozhinskaya Liudmila Ya. , Mamedova Elizaveta O. , Lutsenko Alexander S. , Malygina Anastasia A. , Belaya Zhanna E.
Published: February 2018

We present three clinical cases of successful osteoporosis treatment with denosumab in patients with different courses of osteoporosis: postmenopausal with bisphosphonates ineffectiveness, osteoporosis of mixed etiology in patient on thyroid stimulating hormone suppression and aromatase inhibitor therapy and a case of osteoporosis in a male caused by primary hyperparathyroidism. Mechanism of denosumab action is different from bisphosphonates: denosumab prevents osteoclast differentiation by binding to receptor activator of nuclear factor kappa-B ligand (RANKL) and thus suppressing bone resorption. Clinical trials showed that denosumab promotes further increase of bone mineral density after bisphosphonate treatment. Denosumab has been used in Russian Federation since 2012. Clinical effectiveness and safety profile make denosumab one of the first-line drugs for osteoporosis treatment.
The role of calcium and vitamin D medications in prevention and treatment of osteoporosis
Authors: Lutsenko Alexander S. , Rozhinskaya Liudmila Y. , Toroptsova Natalia V. , Belaya Zhanna E.
Published: February 2018

This article considers the role of calcium and vitamin D in body functions, with focus on skeletal system. We reviewed the results of studies on calcium and vitamin D supplementation worldwide and in Russia. According to these studies, there is insufficient dietary intake of these nutrients, irrespective of geographical, ethnic features and physiological conditions. We also reviewed the data on safety of calcium supplementations for urinary and cardiovascular systems, regimens and doses for vitamin D deficiency treatment in various age groups. The article also contains data on calcium, vitamin D and combined medications, available in Russia, for prevention and treatment of osteoporosis, with highlight on combined ones for better compliance and more convenient dosage frequency.
“Heaven, Hell, or Hoboken:” Anti-German Sentiment in Hoboken, 1917-1918, Some Examples
Authors: Lurie Jonathan
Published: February 2018

In the early 20th century, urban centers in New Jersey, especially locations such as Newark, Hoboken, and Camden, were home to many immigrants from Europe. Hoboken stands out amongst these as it was the major port of embarkation for American troops en route to the World War I. The city saw American immigrants supporting the war effort in varying ways. Irish immigrants, for example, may well have looked at American support for Great Britain in a different light than native-born American citizens. Similarly, German-Americans, especially between 1914 and 1917, were ambivalent as American “neutrality” towards Germany shifted towards outright hostility. What can local newspapers, some of which catered to ethnic interests, tell us about the tensions between ethnic loyalties and the call for patriotic support for the Allies as the United States went to war? This paper focuses in part on editorial comments on the need for “loyalty,” and/or “patriotism” once war was declared in April, 1917. It was originally presented as a paper at the NJ Historical Commission’s 2017 conference, “New Jersey and The Great War,” held November 3-4, 2017 at Rowan College at Burlington County and Joint Base McGuire-Dix-Lakehurst.
A Brief History of the 1st Battalion, 114th Infantry Regiment of the New Jersey National Guard
Authors: Darling Brian
Published: February 2018

The origin story of the 1st Battalion, 114th Infantry has been lost over time. Whether through poor record keeping or due to the turbulence of the Civil War, the unit, formerly known as the Third New Jersey, is unable to trace its lineage before 1860. It is believed, however, that the battalion, currently stationed in Woodbury, New Jersey, has roots in the Revolutionary War-era New Jersey Militia as well as an auxiliary organization formed by the state during the Civil War, the New Jersey Rifle Corps. The purpose of this paper is to document and substantiate the history of the 1st Battalion, 114th Infantry, from the period of 1860 to the start of World War I. It is possible to do this using open source archives and documents. It is the goal of this author, and of the unit’s commander, to eventually trace the lineage of the 1st of the 114th even further back, to the colonial militia.
Tax Protest Document 1676: The First in a Long History of New Jersey Protests Against Taxes
Authors: Lurie Maxine N.
Published: February 2018

The document at the end of this brief introduction was purchased by Special Collections and University Archives, Rutgers University Libraries in 2013. Attributed to William Penn, it is a protest again customs duties collected by New York authorities from the early English Quaker settlers of West Jersey. As such it is the earliest known tax protest in New Jersey, but its real importance lies in the arguments used in the document. It is remarkable that this has survived. After a brief introduction providing context about the history behind the protest, a transcription is provided, followed by a reproduction of the original document.
Jersey Gold: The Newark Overland Company’s Trek to California, 1849
Authors: Morgan Kelly
Published: February 2018

Kelly Morgan reviewing Margaret Casterline Bowen and Gwendolyn Joslin Hiles's Jersey Gold: The Newark Overland Company’s Trek to California, 1849
Blood hormones, metabolic parameters and fatty acid proportion in dairy cows fed condensed tannins and oils blend
Authors: Szczechowiak Joanna , Szkudelska Katarzyna , Szumacher-Strabel Małgorzata , Sadkowski Sławomir , Gwozdz Kinga , El-Sherbiny Mohamed , Kozłowska Martyna , Rodriguez Victor , Cieslak Adam
Published: February 2018

The aim of this study was to track the changes in blood parameters of mid-lactation multiparous Polish Holstein-Friesian cows in response to a diet supplemented with a mixture of fish-soybean oils blend and tannin-containing lingonberry shrub (Vaccinium vitis idaea; VVI) extract. Twelve lactating cows were randomly assigned to a crossover design of two treatments (6 cows per treatment) which consisted of a control diet containing no supplement (CON) and CON supplemented with a mixture of 99 g of VVI leaves extract and 660 g of blended fish-soybean oils (MIX) daily. The obtained results showed a significant increase in plasma glucose level, as well as C18:1t11 and n-3 fatty acids proportion. A significant decrease was also observed in insulin concentration, triglyceride and C18:0 proportion. Generally, the saturated fatty acid proportion decreased while the unsaturated fatty acid significantly increased with the MIX diet. In conclusion, using supplements of a mixture of VVI extract and fish-soybean oils blend modulated the unsaturated fatty acid proportion in blood, without affecting the dairy cows’ blood parameters which were all within the normal ranges.
Petersson norm of cusp forms associated to real quadratic fields
Authors: Li Yingkun
Published: February 2018

In this article, we compute the Petersson norm of a family of weight one cusp forms constructed by Hecke and express it in terms of the Rademacher symbol and the regulator of
real quadratic fields.
Comparison of network processes between successful and unsuccessful offensive sequences in elite soccer
Authors: Peixoto Diogo , Praça Gibson Moreira , Bredt Sarah , Clemente Filipe Manuel
Published: February 2018

Purpose. The study aimed to compare social network analysis (SNA) general measures and centrality levels of successful and unsuccessful offensive sequences performed by elite national teams in 64 matches of the FIFA World Cup 2014 tournament and to compare the level of centrality between playing positions. Methods. Adjacency matrices of passing sequences within an offensive unit were built and treated in a dedicated SNA software. Results. The main results indicated significantly lower values of total links and network density in successful sequences in comparison with unsuccessful ones in the teams that achieved the round of 8, semifinals, and the final. The comparisons between playing positions revealed that forwards showed the highest values of indegree centrality (balls received) and that midfielders presented the highest values of outdegree centrality (ball passed) in both successful and unsuccessful offensive units. Midfielders also exhibited the highest values of betweenness centrality (intermediation between teammates) in unsuccessful sequences and forwards in successful ones. Conclusions. Greater cooperation among teammates may not be determinant for successful sequences. Forwards are the prominent players to receive the ball and intermediate the passing sequence in offenses that end in a goal.
Convergence of explicitly coupled simulation tools (co-simulations)
Authors: Moshagen Thilo
Published: February 2018

In engineering, it is a common desire to couple existing simulation tools together into one big system by passing information from subsystems as parameters into the subsystems under influence. As executed at fixed time points, this data exchange gives the global method a strong explicit component. Globally, such an explicit co-simulation schemes exchange time step can be seen as a step of an one-step method which is explicit in some solution components. Exploiting this structure, we give a convergence proof for such schemes. As flows of conserved quantities are passed across subsystem boundaries, it is not ensured that system-wide balances are fulfilled: the system is not solved as one single equation system. These balance errors can accumulate and make simulation results inaccurate. Use of higher-order extrapolation in exchanged data can reduce this problem but cannot solve it. The remaining balance error has been handled in past work by recontributing it to the input signal in next coupling time step, a technique labeled balance correction methods. Convergence for that method is proven. Further, the lack of stability for co-simulation schemes with and without balance correction is stated.
Interprofessionelle Ausbildung für die Gesundheitsversorgung von morgen – eine Schweizer Perspektive
Authors: Kaap-Fröhlich Sylvia
Published: February 2018

Der Beitrag skizziert den aktuellen Stand der interprofessionellen Ausbildung in der Schweiz. Er beschreibt die derzeit günstigen gesundheitspolitischen Rahmenbedingungen und zeigt mögliche Entwicklungen anhand von Zielgruppen, Inhalten und Methoden auf. Im Mittelpunkt aller interprofessionellen Ausbildungsbemühungen steht die patientenzentrierte Gesundheitsversorgung.
Athletic identity of individuals participating in Special Olympics as exemplified by swimmers – pilot study
Authors: Wieczorek Marta , Wiliński Wojciech , Sadziak Aleksandra
Published: February 2018

Introduction: Special Olympics is an association whose main objective is to organise training and sports competitions for individuals with intellectual disabilities. Each of these individuals manifests certain identification with the sport they do. It is called sports identity and is the subject of interest in this study. The cognitive aim of the study was to determine the intensity which is measured by the level of agreement with the sports identity in the selected group of athletes participating in Special Olympics. In turn, the practical purpose of the work was to indicate the possibilities of applying a modified research tool with regard to individuals with intellectual disabilities and to spread the knowledge about people with intellectual disabilities. Material and methods:The study was conducted on the participants of the 8thLower Silesian Special Olympics Swimming Competition in 2015. A diagnostic poll was applied as a research method and aninterview technique was used. Brewer’s Modified Athletic Identity Measurement Scale was a research tool utilised in the study. Results:Aspects of athletic identity revealed that the majority of Special Olympics participants believed that they were professional athletes and were planning to continue participating in this type of Olympic movement. Their closest friends were also professional athletes. For half of the study participants sport was the most significant part of their life, while a sports failure did not change their disposition. Conclusions:The participants of Special Olympics manifest a high level of athletic identity, which is proven, inter alia, by the fact that sport is one of the most important parts of their lives. For individuals with intellectual disabilities, participation in sports competitions and training sessions organised by Special Olympics is more significant than winning in sports competition
Assessment of knee joint range of motion and the level of pain in patients after arthroscopic ACL reconstruction in the selected physiotherapy model
Authors: Zduński Sebastian , Rongies Witold , Ziółkowski Marcin , Kozieł Tomasz , Kazimierski Piotr , Hałaj Rafał , Sierdziński Janusz
Published: February 2018

Introduction: In the majority of cases, anterior cruciate ligament (ACL) injuries require specialist surgical and physiotherapeutic treatment. The fact that the patient regains a full range of flexion and extension in the knee joint as well as the reduction or elimination of pain is a significant determinant of successful physiotherapy. Material and methods: The study included 72 randomly selected individuals with a complete ACL tear who were qualified for its surgical reconstruction. The research group included 37 patients aged 18-60 (mean age 37±10.3 years). All the participants from this group underwent physiotherapy based on recognised schemes of rehabilitation and performed for 4 weeks before the reconstruction surgery. The control group included 35 patients aged 18-60 (mean age 34±10.0 years) who did not undergo any presurgical physiotherapy programme. Results: Both in the research group and in the control group, subsequent measurements revealed a statistically significant improvement in the range of flexion and extension (p<0.05). Statistical analysis revealed a significantly better extension 1 week and 6 weeks after the ACL reconstruction (p<0.05) in the research group. Statistically significant differences in the level of pain in patients from both groups were noted in subsequent measurements (p<0.05). Also, a statistically significant difference concerning pain assessment 12 weeks after the reconstruction was noted in the research group (p<0.05). Conclusions: A quicker recovery of the range of extension in the operated knee joint and lower intensity of pain in the final measurement noted in the research group may indicate a certain therapeutic value of presurgical physiotherapy.
Discrepancy of Generalized LS-Sequences
Authors: Iacò Maria Rita , Ziegler Volker
Published: February 2018

The LS-sequences are a parametric family of sequences of points in the unit interval. They were introduced by Carbone [4], who also proved that under an appropriate choice of the parameters L and S, such sequences are lowdiscrepancy. The aim of the present paper is to provide explicit constants in the bounds of the discrepancy of LS-sequences. Further, we generalize the construction of Carbone [4] and construct a new class of sequences of points in the unit interval, the generalized LS-sequences.
A Note on the Continued Fraction of Minkowski
Authors: Jager Hendrik
Published: February 2018

Denote by Θ1,Θ2, · · · the sequence of approximation coefficients of Minkowski’s diagonal continued fraction expansion of a real irrational number x. For almost all x this is a uniformly distributed sequence in the interval [0, 1/2 ]. The average distance between two consecutive terms of this sequence and their correlation coefficient are explicitly calculated and it is shown why these two values are close to 1/6 and 0, respectively, the corresponding values for a random sequence in [0, 1/2].
Hydrogen bonding in hydroxypyridium salts
Authors: Mironov Andrei V. , Tafeenko Victor A. , Grebenkin Dmitrii Yu. , Oblezov Alexander E.
Published: February 2018

The crystal structures of 6-methyl-2-ethyl-3-hydroxypyridiniun nitrate (C8H12NO)NO3 (I) and fumarate (C8H12NO)2C4H2O4 (II) were solved and refined from X-ray single crystal diffraction data (CuKα, (I) a=4.6477(2), b=14.5906(9), c=14.5551(8) Å, β=99.100(4)°, space group P21
/c, Z=4, Rp
/Rwp
=0.033/0.047; (II) a=8.8293(3), b=13.4268(5), c=8.3893(3) Å, β=96.303(3)°, space group P21/c, Z=2, Rp
/Rwp=

0.034/0.049). Both structures are built of infinite chains along ac diagonal of the unit cells formed by hydrogen bonding between the hydroxypyridium cation and the corresponding anion. Each fumarate anion is linked to four hydroxypyridium cations while nitrate anion is connected with two hydroxypyridium cations only leaving one oxygen atom in the nitrogen group isolated.
Effect of a 16-Week Combined Strength and Plyometric Training Program Followed by a Detraining Period on Athletic Performance in Pubertal Volleyball Players
Authors: Fathi Abed , Hammami Raouf , Moran Jason , Borji Rihab , Sahli Sonia , Rebai Haithem
Published: February 2018

Fathi, A, Hammami, R, Moran, J, Borji, R, Sahli, S, and Rebai, H. Effect of a 16-week combined strength and plyometric training program followed by a detraining period on athletic performance in pubertal volleyball players. J Strength Cond Res 33(8): 2117–2127, 2019—The purpose of this study was to determine the effects of 16 weeks of combined strength and plyometric training or plyometric training alone and how a detraining program can modify adaptations in response to the training stimulus. Sixty male volleyball players (circa peak-height-velocity [PHV]: −1 to +1 year from PHV) were assigned to a combined training group (CTG) (n = 20), a plyometric training group (PTG) (n = 20), or a control group (n = 20). The experimental groups (CTG and PTG) participated in training twice weekly for 16 weeks. Thigh muscle volume, body fat, flexibility, sprint, jump height, and medicine ball throw were measured before and after the intervention and after the period of detraining. Respectively, the CTG and PTG showed increases in thigh muscle volume (effect size: 0.71 and 0.42) and decreases in body fat (−0.42 and −0.34), as well as improvements in 5-m sprint (−0.69 and −0.46), 10-m sprint (−0.31 and −0.3), lower-body muscle power (0.44 and 0.36), and upper-body muscle power (1.32 and 0.7). After the detraining period, all groups maintained previously attained muscle power (6.79–9.87%; p < 0.001). In conclusion, combined strength and plyometric training provided better improvements than plyometric training only. The combination of strength and plyometric training is a time-effective training modality that confers improvements in physical performance measures, muscle size, and body fat. A temporary period of detraining may not undermine performance gains in pubertal volleyball players.
Effect of Accommodating Resistance on the Postactivation Potentiation Response in Rugby League Players
Authors: Scott David J. , Ditroilo Massimiliano , Marshall Phil
Published: February 2018

Scott, DJ, Ditroilo, M, and Marshall, P. Effect of accommodating resistance on the post-activation potentiation response in rugby league players. J Strength Cond Res 32(9): 2510–2520, 2018—This study examined the postactivation potentiation (PAP) response of 2 conditioning activities (CA), the hex bar deadlift and back squat, combined with accommodating resistance; this adds a percentage of the total resistance during the exercise. Twenty amateur rugby league players performed 2 experimental trials and a control trial without a CA. Participants performed a countermovement jump (CMJ) before and 30, 90, and 180 seconds after 1 set of 3 repetitions of each CA at 70% 1 repetition maximum (RM), with up to an additional 23% 1RM from accommodating resistance. Peak power output (PPO), force at PPO, velocity at PPO, and jump height were calculated for each CMJ. Surface electromyography (EMG) of the vastus lateralis (VL), rectus femoris (BF), tibialis anterior (TA), and gastrocnemius medialis (GM) was also measured. Repeated-measures analysis of variance revealed no significant (p > 0.05) PAP response for either exercise condition when comparing CMJ variables with baseline values nor were there any significant (p > 0.05) differences between exercise conditions. However, individualized recovery intervals (baseline vs. maximum potentiation response) demonstrated significant (p ≤ 0.05) improvements in PPO (3.99 ± 4.99%), force at PPO (4.87 ± 6.41%), velocity at PPO (4.30 ± 5.86%), jump height (8.45 ± 10.08%), VL EMG (20.37 ± 34.48%), BF EMG (22.67 ± 27.98%), TA EMG (21.96 ± 37.76%), and GM EMG (21.89 ± 19.65%). Results from this study must be interpreted with caution; however, it is conceivable that athletic performance can be acutely enhanced when complex training variables are individualized.
Analysis of the Effects of Sex and Age on Upper- and Lower-Body Power for Law Enforcement Agency Recruits Before Academy Training
Authors: Lockie Robert G. , Dawes J. Jay , Orr Robin M. , Stierli Michael , Dulla Joseph M. , Orjalo Ashley J.
Published: February 2018

Lockie, RG, Dawes, JJ, Orr, RM, Stierli, M, Dulla, JM, and Orjalo, AJ. Analysis of the effects of sex and age on upper- and lower-body power for law enforcement agency recruits before academy training. J Strength Cond Res 32(7): 1968–1974, 2018—Power is an important characteristic for law enforcement officers. Tasks such as carrying or dragging a civilian to safety, jumping or vaulting, and suspect restraint and pursuit require power to be effective. Certain recruits may be lacking in these qualities even if they have been accepted to a law enforcement agency (LEA). This study investigated upper- and lower-body power in male and female LEA recruits, and recruits of different ages, before academy training. Retrospective analysis of recruit data from one LEA was conducted. The measurements were: vertical jump (VJ) height; peak anaerobic power calculated by the Sayers equation; power-to-body mass ratio (P:BM); seated medicine ball throw (MBT) distance; and MBT distance relative to body mass. Independent-sample t-tests were used to compare the sexes, whereas a 1-way analysis of variance with Bonferroni post hoc compared the pooled data for recruits across different age groups (20–24; 25–29; 30–34; and 35+ years). The male recruits demonstrated superior performance across all power tests compared with the female recruits (p < 0.001). Regarding age, the 35+ year group performed less than optimally in the VJ and P:BM compared with the 20–24 and 24–29 years groups, and in the relative MBT compared with the 20–24 and 30–34 years groups (p = 0.003–0.037). Despite being accepted to a LEA, female recruits and recruits aged 35+ years of age may be lacking in upper- and lower-body power. Female and older recruits should participate in strength and power training before academy attendance to maintain or enhance these qualities.
Physical Activity and Physiological Profiles of Elite International Female Field Hockey Players Across the Quarters of Competitive Match Play
Authors: McGuinness Aideen , Malone Shane , Hughes Brian , Collins Kieran , Passmore David
Published: February 2018

McGuinness, A, Malone, S, Hughes, B, and Collins, K. Physical activity and physiological profiles of elite international female field hockey players across the quarters of competitive match play. J Strength Cond Res 33(9): 2513–2522, 2019—The aim of the current investigation was to quantify the physical and physiological demands of elite international female field hockey across the quarters of match-play. Twenty-seven elite international female field hockey outfield players (23 ± 3 years; 162.6 ± 13.0 cm; 66.0 ± 6.0 kg) participated in the current observational study during the 2016–2017 season. Participants were monitored using global positioning system technology and HR monitors. Players were categorized based on 3 different playing positions. Activity was categorized into total distance (in meters), relative total distance (m·min−1), low-, moderate-, and high-intensity distance (m), maximum velocity (km·h−1), and percentage maximal velocity (%). Physiological demands were quantified through players peak heart rate (HRPeak), which was classified based on the player's individual HRmax determined using a Yo-Yo intermittent recovery level 1 test. Players spent on average 38 ± 8 minutes in match play. The total distance covered was 4,847 ± 583 m (127.6 ± 15.6 m·min−1). Defenders covered a greater total distance across all 3 positions (p = ≤ 0.05). The midfielders covered a greater moderate-intensity distance (p ≤ 0.001), whereas the forwards covered more high-intensity distance (p ≤ 0.001). The HRpeak of the players was 198 ± 4 b·min−1 with a mean exercise intensity of 95 ± 1% HRmax. The time spent >70% HRmax decreased significantly across the quarters (p = 0.01, η2 = 0.03). Defenders were found to spend more time >85% HRmax when compared with other positions (p ≤ 0.001, η2 = 0.28). The current study provides normative data that coaches should consider when developing training drills to better optimize the positional physical and physiological activity profiles that best replicate match play.
Multi-Objective Genetic Algorithm for Economic Statistical Design of the T2 Control Chart with Variable Sample Size: The Updated Markov Chain Approach
Authors: Seif Asghar
Published: February 2018

T 2 control charts are used to primarily monitor the mean vector of quality characteristics of a process. Recent studies have shown that using variable sample size (VSS) schemes results in charts with more statistical power for detecting small to moderate shifts in the process mean vector. In this study, we have presented a multiple-objective economic statistical design of VSS T2 control chart with the adjusted average time to signal (AATS) as the statistical objective and the expected cost per hour as the economic objective. Then, a multi-objective genetic algorithm for economic statistical design is proposed for identifying the Pareto optimal solutions of control chart design. Through an illustrative example, the advantages of the proposed approach are shown by providing a list of viable optimal solutions and graphical representations, which indicate the advantage of flexibility and adaptability of our approach.
Experimental Investigations on Welding and Mechanical Characteristics of Sintered-Forged Plain Carbon Steel under Autogenous TIG Welding
Authors: Kandavel T. K. , Vijay D.
Published: February 2018

The present research work embraces the experimental studies on mechanical and metallurgical properties of powder metallurgy (P/M) plain carbon steel (Fe-0.5 %C) welded autogenously with various modes of current, namely, alternate current, direct current, mixed mode current, and pulse current (PC) using autogenous Tungsten Inert Gas (TIG) welding. The sintered specimens of rectangular shape synthesized through the P/M route were densified by cold upsetting to obtain maximum density. A pair of specimens were welded, and the weld quality was checked by standard nondestructive testing methods. Various mechanical tests were conducted using standard size specimens as per the ASTM standards. It is found from the results of various mechanical tests that the welded joint made by PC TIG welding exhibits the greatest tensile and impact strengths among the other modes of welded joint. Scanning Electron Microscopy (SEM) fractography of the tensile fractured surfaces reveal the brittle mode of fracture irrespective of the mode of welding currents, which are being used for joining the specimens. Optical microscopy, Energy Dispersive Spectroscopy (EDS), and X-ray Diffraction (XRD) analyses have been carried out to investigate microstructural changes and phase transformation of chemical constituents at the welded region. The hardness at the fusion zone is found to be higher because of pore-free microstructure.
Réussite de l’épreuve unique d’histoire de quatrième secondaire : récit d’une recherche collaborative
Authors: Duquette Catherine , Lauzon Marc-André , Saint-Gelais Sonia
Published: February 2018

L’article a pour objectif de présenter les résultats obtenus à la suite d’une recherche collaborative menée auprès de huit enseignants d’histoire de deuxième cycle du secondaire de la Commission scolaire du Pays-des-Bleuets pendant l’année scolaire 2014-2015. L’observation d’un faible taux de réussite des élèves de la Commission scolaire (CS) à l’épreuve unique d’histoire de quatrième secondaire, comparativement aux autres CS de la province, est à l’origine de ce projet financé par le Consortium régional de recherche en éducation (CRRE) (Duquette, Lauzon et St-Gelais,, 2016). D’une durée d’un an, le projet visait à mieux comprendre les forces et les faiblesses des élèves pour ensuite développer, avec l’équipe enseignante, des stratégies didactiques adaptées. À la suite de l’analyse de 195 copies d’épreuve unique de juin 2014, nous avons dégagé que la principale faiblesse des élèves était leur difficulté à travailler avec le dossier documentaire : un assemblage de sources historiques permettant de répondre aux questions de l’épreuve. Le texte que nous proposons fera état de l’évolution des stratégies didactiques développées par les enseignants lors de trois communautés d’apprentissage afin de familiariser les élèves à l’analyse des sources documentaires. Nous mettrons également en lumière l’importance de la collaboration entre l’équipe de chercheurs et l’équipe enseignante tant pour parvenir à une réelle transformation des pratiques que pour améliorer nos connaissances en didactique de l’histoire.
Role of iodide metabolism in physiology and cancer
Authors: De la Vieja Antonio , Santisteban Pilar
Published: February 2018

Iodide (I−) metabolism is crucial for the synthesis of thyroid hormones (THs) in the thyroid and the subsequent action of these hormones in the organism. I−is principally transported by the sodium iodide symporter (NIS) and by the anion exchanger PENDRIN, and recent studies have demonstrated the direct participation of new transporters including anoctamin 1 (ANO1), cystic fibrosis transmembrane conductance regulator (CFTR) and sodium multivitamin transporter (SMVT). Several of these transporters have been found expressed in various tissues, implicating them in I−recycling. New research supports the exciting idea that I−participates as a protective antioxidant and can be oxidized to hypoiodite, a potent oxidant involved in the host defense against microorganisms. This was possibly the original role of I−in biological systems, before the appearance of TH in evolution. I−per se participates in its own regulation, and new evidence indicates that it may be antineoplastic, anti-proliferative and cytotoxic in human cancer. Alterations in the expression of I−transporters are associated with tumor development in a cancer-type-dependent manner and, accordingly, NIS, CFTR and ANO1 have been proposed as tumor markers. Radioactive iodide has been the mainstay adjuvant treatment for thyroid cancer for the last seven decades by virtue of its active transport by NIS. The rapid advancement of techniques that detect radioisotopes, in particular I−, has made NIS a preferred target-specific theranostic agent.
Cerebrospinal Fluid Reference Values for Young Infants Undergoing Lumbar Puncture
Authors: Thomson Joanna , Sucharew Heidi , Cruz Andrea T. , Nigrovic Lise E. , Freedman Stephen B. , Garro Aris C. , Balamuth Fran , Mistry Rakesh D. , Arms Joseph L. , Ishimine Paul T. , Kulik Dina M. , Neuman Mark I. , Shah Samir S. ,   for the Pediatric Emergency Medicine Collaborative Research Committee (PEM CRC) HSV Study Group
Published: February 2018

OBJECTIVES:

To determine age-specific reference values and quantify age-related changes for cerebrospinal fluid (CSF) white blood cell (WBC) counts and protein and glucose concentrations in infants ≤60 days of age.

METHODS:

This multicenter, cross-sectional study included infants ≤60 days old with CSF cultures and complete CSF profiles obtained within 24 hours of presentation. Those with conditions suspected or known to cause abnormal CSF parameters (eg, meningitis) and those with a hospital length of stay of >72 hours were excluded. Reference standards were determined for infants ≤28 days of age and 29 to 60 days of age by using the third quartile +1.5 interquartile range for WBC and protein and the first quartile −1.5 interquartile range for glucose. CSF parameter centile curves based on age were calculated by using the LMST method.

RESULTS:

A total of 7766 patients were included. CSF WBC counts were higher in infants ≤28 days of age (upper bound: 15 cells/mm3) than in infants 29 to 60 days of age (upper bound: 9 cells/mm3; P < .001). CSF protein concentrations were higher in infants ≤28 days of age (upper bound: 127 mg/dL) than in infants 29 to 60 days of age (upper bound: 99 mg/dL; P < .001). CSF glucose concentrations were lower in infants ≤28 days of age (lower bound: 25 mg/dL) than in infants 29 to 60 days of age (lower bound: 27 mg/dL; P < .001).

CONCLUSIONS:

The age-specific CSF WBC count, protein concentration, and glucose concentration reference values identified in this large, multicenter cohort of infants can be used to interpret the results of lumbar puncture in infants ≤60 days of age.
Contrast-Enhanced Ultrasound-Guided Radiofrequency Ablation of Renal Tumo
Authors: O’Neal Dan , Cohen Tal , Peterson Cynthia , G. Barr Richard
Published: February 2018

Although only limited long-term studies evaluating thermal ablation of renal masses have been performed, it appears that thermal ablation has a comparable 5-year success rate to that of partial or total nephrectomy. This technique is often used in patients who are not good candidates for partial or total nephrectomy. Contrast-enhanced ultrasound (CEUS) has been recently approved by the Food and Drug Administration for characterization of focal liver lesions in adults and pediatric patients. CEUS can be used off label for renal applications and has been used for years in Europe and Asia. It has several advantages over contrast-enhanced computed tomography for use as the technique to guide and evaluate efficacy of thermal ablation of renal masses. These include the ability to visualize small amounts of enhancement, repeat dosing to evaluate efficacy of an ablation during a procedure, thin slice thickness, and real-time visualization. Ultrasound contrast is also non-nephrotoxic and non-hepatotoxic, allowing evaluation of patients with renal insufficiency. This article reviews the use of CEUS for the guidance and follow-up of thermal ablative procedures of renal masses.
Profil Berpikir Analitis Masalah Aljabar Siswa Ditinjau dari Gaya Kognitif Visualizer dan Verbalizer
Authors: Ilma Rosidatul , Hamdani A Saepul , Lailiyah Siti
Published: February 2018

This research aimed to describe the profile of the visualizer and verbalizer students to think analytically in solving mathematical problems. The subjects were 3 visualizer students and 3 verbalizer students obtained by VVQ questionnaire. The research data are the form of analytical thinking tests and interviews were then analyzed based on the indicators of analytical thinking in solving mathematical problems based on the stage Polya. The results obtained by the visualizer students mention known and asked by picture, modelize problem by picture, use any different strategies, and conclude by picture. In other hand, verbalizer students mention known and asked by words, modelize problem by word (symbol or alphabet), use same strategy, and conclude by words. In the final result, there is no difference ability between the visualizer and verbalizer students' cognitive style to think analytically in solving the problem because both are quite good.