bluuebunny/crossref_metadata_2025_split huggingface dataset:
Surface Substructure and Properties of ZrB2p/6061Al Composite Treated by Laser Surface Melting under Extreme Cooling Conditions
Authors: Zeng Yida , Chao Yuhjin , Luo Zhen , Huang Yongxian , Cai Yangchuan , Deng Lingzhu , Guo Weijia , Lei Yuchen , Lu Tong , Wang Zihao 
Published: December 2016

Abstract
Particulate reinforcement composite ZrB2p/6061Al was fabricated from Al-K2ZrF6-KBF4 by a direct melt reaction. Laser surface melting was used to improve the surface strength of the in situ ZrB2p/6061Al composite, which includes a series of laser-melted composites with different laser power and cooling conditions processed by a 2-kW yttrium aluminum garnet laser generator. The surface substructure of these laser-treated specimens was investigated by light optical microscopy, scanning electron microscopy, energy-dispersive spectroscopy, X-ray diffractometry and transmission electron microscopy. The penetration depth of the molten pool increases with increases in power density, and decreases with increases in the degree of undercooling. The Vickers hardness of the laser-melted composites reached 60–75.2 HV in liquid nitrogen and 56–64.0 HV in air, and increased by 50.4 % and 28 %. Grain refinement with decreased cellular spacing is important in strength performance. Because of a thermocapillary flow vortex and α-Al phase precipitation, nano-ZrB2 particles were distributed along the cellular dendrite boundary as observed by scanning electron microscopy. This was considered to be a key factor responsible for the improved mechanical composite properties. When cooling under liquid nitrogen, the thermal mismatch stress between particles and the matrix generates a high dislocation density. The dislocation grows along the interface between the matrix and particles and provides the laser-melted composites with additional strength.
A Lagrange Regularized Kernel Method for Solving Multi-dimensional Time-Fractional Heat Equations
Authors: Pindza Edson , Clement Mba Jules , Maré Eben , Moubandjo Désirée 
Published: December 2016

Abstract:
Evolution equations containing fractional derivatives can provide suitable mathematical models for describing important physical phenomena. In this paper, we propose an accurate method for numerical solutions of multi-dimensional time-fractional heat equations. The proposed method is based on a fractional exponential integrator scheme in time and the Lagrange regularized kernel method in space. Numerical experiments show the effectiveness of the proposed approach.
The 12 Steps of Addiction Recovery Programs as an influence on leadership development: a personal narrative
Authors: Friedman Mitchell 
Published: December 2016

Abstract
My participation in a 12-step addiction program based on the principles and traditions of Alcoholics Anonymous (AA) has been critical for my leadership development. As I worked to refrain from addictive behaviors and practiced 12-step principles, I experienced a shift from individualistic, self-centered leadership towards a servant leader orientation. I thus consider the 12-step recovery process, which commenced in 2001, a leadership formative experience (LFE) as it had the greatest influence on my subsequent development. My experience of thinking about and rethinking my life in reference to leadership and followership lends itself to a personal inquiry. It draws on work on the12 steps; self-assessments and personal journal entries; and memory of life events. I aim to contribute to the leadership development literature by exploring the influence of participation in a 12-step recovery program and posing it as an LFE, subjects that have received little attention.
Thermosteric contribution of warming oceans to
the global sea level variations
Authors: Bâki Iz H. 
Published: December 2016

Abstract
Thermosteric contribution of warming oceans
to the global sea level variations during the last century
was evaluated at globally distributed 27 tide gauge stations
with records over 80 years. The assessment was made using
a recently proposed lagged model inclusive of a sea
level trend, long and decadal periodicities, and lagged sea
surface temperature measurements. The new model solutions
revealed that almost all the long period periodic
sea level changes experienced at these stations can be attributed
to the lagged thermosteric effects of the warming
oceans during the 20th century. Meanwhile, statistically
significant (p<0.05) anomalous thermosteric contributions
to the secular trends, some of them as large as
1.0±0.2 mm/yr, were detected at six tide gauge stations
close to the equator and open seas. The findings of this
study revealed a more complex impact of the warming
oceans at the globally distributed tide gauge stations other
than a secular contribution to the sea level trends of the
previous studies.
Application of Genetic Algorithm and Particle Swarm Optimization techniques for improved image steganography systems
Authors: Jude Hemanth Duraisamy , Umamaheswari Subramaniyan , Popescu Daniela Elena , Naaji Antoanela 
Published: December 2016

Abstract
Image steganography is one of the ever growing computational approaches which has found its application in many fields. The frequency domain techniques are highly preferred for image steganography applications. However, there are significant drawbacks associated with these techniques. In transform based approaches, the secret data is embedded in random manner in the transform coefficients of the cover image. These transform coefficients may not be optimal in terms of the stego image quality and embedding capacity. In this work, the application of Genetic Algorithm (GA) and Particle Swarm Optimization (PSO) have been explored in the context of determining the optimal coefficients in these transforms. Frequency domain transforms such as Bandelet Transform (BT) and Finite Ridgelet Transform (FRIT) are used in combination with GA and PSO to improve the efficiency of the image steganography system.
Validity of Daily and Weekly Self-Reported Training Load Measures in Adolescent Athletes
Authors: Phibbs Padraic J. , Roe Gregory , Jones Ben , Read Dale B. , Weakley Jonathon , Darrall-Jones Joshua , Till Kevin 
Published: December 2016

Abstract
Phibbs, PJ, Roe, G, Jones, B, Read, DB, Weakley, J, Darrall-Jones, J, and Till, K. Validity of daily and weekly self-reported training load measures in adolescent athletes. J Strength Cond Res 31(4): 1121–1126, 2017—The primary aim of the study was to assess the level of agreement between the criterion session rating of perceived exertion (sRPE30min) and a practical measure of a self-reported Web-based training load questionnaire 24 hours after training (sRPE24h) in adolescent athletes. The secondary aim was to assess the agreement between weekly summated sRPE24h values (∑sRPE24h) and a weekly Web-based training diary (sRPEweekly) for all field-based training accumulated on a subsequent training week. Thirty-six male adolescent rugby players (age, 16.7 ± 0.5 years) were recruited from a regional academy. Measures of sRPE30min were recorded 30 minutes after a typical field-based training session. Participants then completed the sRPE24h via a Web-based training load questionnaire 24 hours after training, reporting both session duration and intensity. In addition, on a subsequent week, participants completed the sRPE24h daily and then completed the sRPEweekly at the end of the week, using the same Web-based platform, to recall all field-based training session durations and intensities over those 7 days. Biases were trivial between sRPE30min and sRPE24h for sRPE (0.3% [−0.9 to 1.5]), with nearly perfect correlations (0.99 [0.98–0.99]) and small typical error of the estimate (TEE; 4.3% [3.6–5.4]). Biases were trivial between ∑sRPE24h and sRPEweekly for sRPE (5.9% [−2.1 to 14.2]), with very large correlations (0.87 [0.78–0.93]) and moderate TEE of 28.5% [23.3–36.9]. The results of this study show that sRPE24h is a valid and robust method to quantify training loads in adolescent athletes. However, sRPEweekly was found to have a substantial TEE (28.5%), limiting practical application.
Performance and Metabolic Demand of a New Repeated-Sprint Ability Test in Basketball Players: Does the Number of Changes of Direction Matter?
Authors: Zagatto Alessandro M. , Ardigò Luca P. , Barbieri Fabio A. , Milioni Fabio , Dello Iacono Antonio , Camargo Bruno H.F. , Padulo Johnny 
Published: December 2016

Abstract
Zagatto, AM, Ardigò, LP, Barbieri, FA, Milioni, F, Dello Iacono, A, Camargo, BHF, and Padulo, J. Performance and metabolic demand of a new repeated-sprint ability test in basketball players: does the number of changes of direction matter? J Strength Cond Res 31(9): 2438–2446, 2017—This study compared 2 repeated-sprint ability (RSA) tests in basketball players. Both tests included 10 × 30-m sprints, with the difference that the previously validated test (RSA2COD) featured 2 changes of direction (COD) per sprint, whereas the experimental test (RSA5COD) featured 5 CODs per sprint. Test performances and metabolic demands were specifically assessed in 20 basketball players. First, RSA5COD test-retest reliability was investigated. Then, RSA2COD, RSA5COD sprint times, peak speeds, oxygen uptake (V̇o
2) and posttest blood lactate concentration [La−] were measured. The RSA5COD results showed to be reliable. RSA2COD performance resulted better than the RSA5COD version (p < 0.01), with shorter sprint times and higher peak speeds. Over sprints, the tests did not differ from each other in terms of V̇o
2 (p > 0.05). Over whole bout, the RSA2COD was more demanding than the RSA5COD, considering overall metabolic power requirement (i.e., VO2-driven + [La−]-driven components). Given that RSA5COD (a) mimics real game-play as sprint distance and action change frequency/direction and (b) has the same metabolic expenditure per task completion as metabolic cost, RSA5COD is a valuable option for players and coaches for training basketball-specific agility and assessing bioenergetic demands.
Comparison of Bioimpedance and Underwater Weighing Body Fat Percentage Before and Acutely After Exercise at Varying Intensities
Authors: Nickerson Brett S. , Esco Michael R. , Kliszczewicz Brian M. , Freeborn Todd J. 
Published: December 2016

Abstract
Nickerson, BS, Esco, MR, Kliszczewicz, BM, and Freeborn, TJ. Comparison of bioimpedance and underwater weighing body fat percentage before and acutely after exercise at varying intensities. J Strength Cond Res 31(5): 1395–1402, 2017—The purpose of this study was to compare single-frequency bioelectrical impedance analysis (BIA) and bioimpedance spectroscopy (BIS) with underwater weighing (UWW) body fat percentage (BF%) before (PRE), immediately post (IP), and 60 minutes post (60P) an acute bout of moderate and vigorous aerobic exercise. Nine men (age = 24.6 ± 3.7 years) volunteered for this study. Subjects visited the laboratory on 3 separate occasions. Testing included two 30-minute exercise sessions at 60 and 80% heart rate reserve (HRR) and a 30-minute control (CON) trial. The constant error (CE) was significantly higher for BIA at each time point and exercise session (CE = 3.0–4.9% for 60% HRR; 2.5–4.7% for 80% HRR). Conversely, BIS yielded a nonsignificant CE at each time point and exercise session (CE = −0.9 to 1.1% for 60% HRR; −0.3 to 1.2% for 80% HRR). The standard error of estimate (SEE) for both exercise sessions ranged from 2.7 to 3.1% and 3.8–4.3% for BIA and BIS, respectively. The 95% limits of agreement were narrower for BIA (60% HRR = ±5.5 to 7.8%; 80% HRR = ±6.6 to 8.5%) than BIS (60% HRR = ±8.4 to 9.4%; 80% HRR = ±8.1 to 10.2%). Results indicate that BIS can be used for mean group BF% in men at PRE, IP, and 60P time periods. However, BIA yielded a lower SEE and 95% limits of agreement than BIS. Therefore, BIA provides better individual estimates of BF% in men, but the CE should be taken into consideration.
Physical and Physiological Attributes of Wrestlers: An Update
Authors: Chaabene Helmi , Negra Yassine , Bouguezzi Raja , Mkaouer Bessem , Franchini Emerson , Julio Ursula , Hachana Younés 
Published: December 2016

Abstract
Chaabene, H, Negra, Y, Bouguezzi, R, Mkaouer, B, Franchini, E, Julio, U, and Hachana, Y. Physical and physiological profile of wrestler athletes: a short review. J Strength Cond Res 31(5): 1411–1442, 2017—Wrestling is one of the oldest combat sports, disputed since the ancient Greek Olympic Games. This combat sport discipline has caught the attention of scientists since 1943 which is the date that matches the appearance of the first scientific research dealing with wrestling. The current short review aimed to summarize and critically analyze the scientific literature related to wrestling's physical and physiological attributes and to provide practical recommendations for testing/training together with new perspective and areas of future scientific research. Regardless of sex and wrestling styles, an optimal level of cardiorespiratory fitness is important to help sustaining effort throughout the duration of the match and to stimulate the recovery process between periods. With regard to the anaerobic power and capacity, the available studies were in agreement about their critical importance toward reaching high-level wrestling success since these variables have discriminated well between successful and less-successful wrestlers regardless of age, weight classes, and wrestling styles. Physical fitness parameters such as maximal dynamic strength, isometric strength, explosive strength, and strength endurance are closely related to high-level wrestling performance. However, flexibility level seems not to be one of the key fitness variables that help to reach high-level wrestling success. Overall, to achieve high-level wrestling performance, training should be directed to develop anaerobic power and capacity, aerobic power, maximal dynamic and isometric strength, explosive strength, and strength endurance.
Application of a Simple Surveillance Method for Detecting the Prevalence and Impact of Overuse Injuries in Professional Men's Basketball
Authors: Weiss Kaitlyn J. , McGuigan Michael R. , Besier Thor F. , Whatman Chris S. 
Published: December 2016

AbstractWeiss, KJ, McGuigan, MR, Besier, TF, and Whatman, CS. Application of a simple surveillance method for detecting the prevalence and impact of overuse injuries in professional men's basketball.J Strength Cond Res31(10): 2734–2739, 2017—The aim of this study was to use the Oslo Sports Trauma Research Center (OSTRC) Overuse Injury Questionnaire to record overuse injuries over a single season for a men's professional basketball team to (a) assess the prevalence and severity of overuse injuries and (b) determine the efficacy of this method in identifying overuse injuries in comparison with the team physiotherapist's detection of these injuries. Thirteen athletes from a men's professional basketball team participated in this study. The self-reported, OSTRC injury questionnaire was used to record overuse conditions of the ankle, knee, and lower back over an entire 24-week season. Standard time-loss injury registration methods were also used to record overuse conditions by the physiotherapist. Overuse injury rates per 1,000 hours of athlete exposure and average weekly prevalence of overuse injuries were calculated using the results of the questionnaire. A total of 183 overuse conditions were identified by the questionnaire, whereas only 28 overuse conditions were identified by the physiotherapist. The team's average weekly prevalence of all overuse conditions was 63% (95% confidence interval [CI]: 60–66), with the highest prevalence of injury affecting the lower back (25.9% [95% CI: 19.7–32.1]). The overuse injury rate per 1,000 hours of athlete exposure was 6.4. The OSTRC overuse injury questionnaire captures many more overuse injuries in basketball than standard time-loss methods. The prevalence of lower back injuries is higher than that previously reported in basketball. This additional method of overuse injury surveillance may more accurately quantify the overuse injury problem in basketball and aid earlier intervention and management of these conditions.
The role of urotensin II and atherosclerotic risk factors in patients with slow coronary flow
Authors: Şatıroğlu Ömer , Emre Durakoğlugil Murtaza , Çetin Mustafa , Çiçek Yüksel , Erdoğan Turan , Duman Hakan 
Published: December 2016

Background
Slow coronary flow (SCF) is an angiographic finding characterized with delayed opacification of epicardial coronary arteries without obstructive coronary disease. Urotensin II (UII) is an important vascular peptide, which has an important role in hypertension, coronary artery disease, and vascular remodeling in addition to potent vasoconstrictor effect.

Objectives
We investigated UII levels, hypertension, and other atherosclerotic risk factors in patients with SCF, a variety of coronary artery disease.

Methods
We enrolled 14 patients with SCF and 29 subjects with normal coronary arteries without SCF. We compared the UII levels and the atherosclerotic risk factors between patients with SCF and control subjects with normal coronary flow.

Results
UII concentrations were significantly higher in patients with SCF compared to controls (711.0 ± 19.4 vs. 701.5 ± 27.2 ng/mL, p = 0.006). We detected a positive correlation between SCF and age (r = 0.476, p = 0.001), BMI (r = 0.404, p = .002), UII concentrations (r = 0.422, p = 0.006), and hypertension (r = 0.594, p = 0.001).

Conclusion
We identified increased UII levels in patients with SCF. We think that UII concentrations may be informative on SCF pathogenesis due to relationship with inflammation, atherosclerosis, and vascular remodeling.
Quality of life after tonsillectomy versus azithromycin
Authors: El Hennawi Diaa El Din Mohamed , Rifaat Ahmed Mohamed 
Published: December 2016

Background
Recurrent tonsillitis is a common disease with marked evidence of affecting children quality of life (QOL) such as their progression in school and increased burden to extended families. The aim of this study was to compare the QOL outcomes after conventional dissection tonsillectomy versus azithromycin treatment in controlling recurrent tonsillitis.

Methods
A double-blind, randomized clinical trial was carried out in 184 children with recurrent tonsillitis randomly divided into two groups: Group A was subjected to conventional dissection tonsillectomy, whereas Group B received single 250 mg (children ≤25 kg) and 500 mg (children ≥25 kg) of oral azithromycin once weekly.

Results
There were no significant differences between the groups with regard to ear, nose, and throat infections during the 5-year follow-up. Better QOL was observed in both groups when compared with the pretreatment, but similar QOL in both groups QOL after treatment.

Conclusion
Azithromycin is an effective method as a prophylaxis against recurrent tonsillitis with a great benefit for better QOL outcomes.
Characteristics of cellular composition of periodontal pockets
Authors: Hasiuk Petro , Hasiuk Nataliya , Kindiy Dmytro , Ivanchyshyn Victoriya , Kalashnikov Dmytro , Zubchenko Sergiy 
Published: December 2016

Purpose
The development of inflammatory periodontal disease in young people is an urgent problem of today's periodontology, and requires a development of new methods that would give an opportunity not only to diagnose but also for prognosis of periodontitis course in a given patients contingent.

Results
Cellular structure of periodontal pockets is presented by hematogenous and epithelial cells. Our results are confirmed by previous studies, and show that the penetration of periodontal pathogens leads to formation in periodontal tissue of a highly active complex compounds—cytokines that are able to modify the activity of neutrophils and reduce their specific antibacterial properties. Cytokines not only adversely affect the periodontal tissues, but also cause further activation of cells that synthesized them, and inhibit tissue repair and process of resynthesis of connective tissue by fibroblasts.

Conclusion
Neutrophilic granulocytes present in each of the types of smear types, but their functional status and quantitative composition is different. The results of our cytological study confirmed the results of immunohistochemical studies, and show that in generalized periodontitis, an inflammatory cellular elements with disorganized epithelial cells and connective tissue of the gums and periodontium, and bacteria form specific types of infiltration in periodontal tissues.
Thrombocytopenia absent radii syndrome in a twenty five day old female neonate: a case report
Authors: Danfulani Mohammed , Musa Abubakar , Ma'aji Sadisu M. , Saidu Sule A. , Musa Muhammad A. 
Published: December 2016

<p class="abstract">Thrombocytopenia absent radii (TAR) is a rare genetic disorder associated with multiple additional anomalies. We report a case of a 25 day old female neonate with thrombocytopenia and bilateral absent radii with flexion of the elbow joint and radial deviation of the wrist joint. TAR, although rare are not uncommon. Thus, we have presented a 25 day old neonate with radiological features of absent radii and fluctuating platelet counts that subsequently showed thrombocytopenia that warranted the diagnosis of TAR syndrome in this case<span lang="EN-IN">. </span></p><p class="abstract"> </p>
A case report on meningococcal septicaemia in Kalabazaar, Thimphu, November 2016
Authors: . Tsheten , Wangchuk Sonam , Mynak Mimi Lhamu , Lhaden Tenzin 
Published: December 2016

<p>We report here a case study of meningococcal septicaemia caused by <em>Neisseria meningitidis</em> in Kalabazaar, Thimphu on November 2016. The one-year old patient had no history of contact with any infected individuals in the past two weeks before his onset, neither did he travel anywhere besides his one-storey traditional residence. The patient was hospitalized and given antibiotic treatment of ceftriaxone at an early course of the disease. The patient did not develop any complications during the time of hospitalization and had recovered well. Close contacts with the case were identified and given post-exposure prophylaxis with 500 mg ciprofloxacin. No new cases were encountered during the course of contact tracing. </p>
Early outcome in Madelung’s and Madelung like deformity of wrist in adolescent group
Authors: Gupta S. P. , Garg Gaurav 
Published: December 2016

<p class="abstract"><strong>Background:</strong> Madelung deformity is the result of bony and ligamentous dysplasia at the wrist that produces characteristic deformity and is usually recognized in late adolescence. Madelung like deformity can occur following trauma, infection or neoplasm. This esthetic deformity is encountered rarely in orthopaedic practice, when surgeon faces the challenging task to correct it using the best available technique. This study has been conducted to analyze the presentation, interventional procedures and their end result.</p><p class="abstract"><strong>Methods:</strong> We retrospectively analyze the clinical records, radiographs and functional outcome of patients who presented with Madelung and Madelung like deformity. Radiographic and clinical assessment was done. Surgery was considered for patients fitting into the inclusion criteria. Dorsolateral close wedge and palmar open wedge osteotomy of radius were done with or without ulnar procedure. Postoperative protocol was followed and periodic assessment was done. Mayo modified wrist score has been used to evaluate the pre-operative and post-operative scores.<strong></strong></p><p class="abstract"><strong>Results:</strong> The study enrolled sixteen affected wrists. Average age in our study was 14 years with an average follow-up of 12 months. Statistically significant increase in range of motion of wrist was achieved for in surgically treated patients. Significant change in pain score, grip strength, RAU° and carpal slip was noted. Postoperative wrist score was also significantly improved.</p><p><strong>Conclusions:</strong> Our study concludes that there is a definitive role of surgical intervention to improve the range of motion of wrist, grip strength and reduces pain which brings the patient back into the main stream of a functionally independent being. </p>