bluuebunny/crossref_metadata_2025_split huggingface dataset:
Relationship between Indirect Measures of Aerobic and Muscle Power with Frequency Speed of Kick Test Multiple Performance in Taekwondo Athletes
Authors: Albuquerque Maicon Rodrigues , Tavares Lucas Duarte , Longo Ariel Roberth , Caldeira Mesquita Paulo Henrique , Franchini Emerson 
Published: August 2021

AbstractThis study aimed to determine the relationship between indirect measures of aerobic power and muscular power with Frequency Speed of Kick Test performance using multiple sets (FSKTmult) in high-level taekwondo athletes. We used a known-group method to test differences in FSKTmult performance between two groups designated as lower and higher performance in both aerobic power and muscular power. In total, 42 international or national taekwondo athletes of both sexes performed the FSKTmult, Progressive Specific Taekwondo Test (PSTT), and countermovement jump (CMJ). Our results showed that average of the three CMJ was moderately correlated with FSKTmult performance (r=0.44); whereas PSTT and FSKTmult were highly correlated (r=0.83). Moreover, the groups formed by lower and higher performance of time to exhaustion in PSTT, as well as the average of CMJ were able to discriminate performance in the FSKTmult (p ≤0.05). The present study thus suggests that aerobic and muscle power are important for FSKTmult performance.
Effects of Sitagliptin as Monotherapy and Add-On to Metformin on
Weight Loss among Overweight and Obese Patients with Type 2 Diabetes: A
Systematic Review and Meta-Analysis
Authors: Janani Leila , Bamehr Hadi , Tanha Kiarash , Mirzabeigi Parastoo , Montazeri Hamed , Tarighi Parastoo 
Published: August 2021

Abstract
Background Sitagliptin is known as an antidiabetic agent inhibiting the
dipeptidyl peptidase-4. Although sitagliptin may influence weight, controversial
results have been reported, and there is no general agreement on this issue.
Therefore, this study assessed the effect of sitagliptin as monotherapy and
add-on therapy to metformin on weight reduction in overweight or obese cases
with type 2 diabetes.
Methods We reviewed the following databases to identify all relevant
papers published until 1st April 2021: Web of Science, MEDLINE, Embase, Scopus,
Cochrane Central Register of Controlled Trials Cochrane Library, and Google
Scholar. The research included all clinical trials investigating the effect of
sitagliptin in obese or overweight adult patients with type 2 diabetes without
any language restriction.
Results In total, eighteen randomized controlled trials with 2009
participants were included in our meta-analysis. Results showed supplementation
of sitagliptin has led to weight loss for sitagliptin treated (MD
−0.99; 95% CI; (−1.87, −0.12);
p=0.026)) and sitagliptin+metformin treated groups (MD
−1.09; 95% CI; (−1.69, −0.49);
p<0.001)). Also, the intervention has influenced body mass index in
sitagliptin treated (MD  −0.23; 95% CI; (−0.45,
0.02); p=0.033)) and sitagliptin+metformin treated groups (MD
−0.52; 95% CI; (−0.96, 0.08); p=0.020))
comparing to placebo.
Conclusion Our results demonstrated that sitagliptin administration with
or without metformin might reduce the body weight and body mass index if these
drugs are taken for more than 6 months.
Tendão quadricipital: Opção na reconstrução ligamentar do joelho
Authors: Stieven Filho Edmar , Namba Maisa Sayuri , do Prado Nascimento Isabela , Martins Rosa Fernando , Namba Mario Massatomo 
Published: August 2021

ResumoAinda que seja um tendão versátil, apenas 1% dos cirurgiões optam por utilizar o tendão quadricipital como enxerto na reconstrução do ligamento cruzado anterior (LCA). O presente artigo tem o objetivo de descrever uma técnica de retirada do enxerto quadricipital na qual a sua porção mais profunda é mantida. A técnica consiste em uma abordagem na qual a primeira incisão é feita na porção medial do tendão quadricipital para evitar que ele fique muito curto. Isso acontece devido ao seu desenho triangular. A técnica também aborda a profundidade e a identificação das três camadas do tendão quadricipital para que seja possível preservar sua porção mais profunda. Esta conduta tem o objetivo de uma maior preservação do aparelho extensor e de não haver comunicação com o meio articular, evitando extravasamento de líquido tanto no trans- quanto no pós-operatório.
Endolymphatic Sac Tumour: A Case Report and Review of the Literature
Authors: Patankar Amey P. , Aiyer Ranjan , Chamarajan Srinivasan , Vala Nidhi 
Published: August 2021

Abstract
Introduction Endolymphatic sac tumor (ELST) is a slow-growing, low-grade, locally-infiltrative tumor arising from the endolymphatic sac/duct, which is located in the posterior part of the petrous temporal bone. It may be sporadic in origin, or may be associated with Von-Hippel Lindau (VHL) syndrome.
Case description A 40-year-old female patient with an ELST without VHL syndrome who was treated successfully by microsurgical extirpation of the tumor.
Discussion We discuss the radiological features and the histopathology of this rare tumor and review the relevant literature.
Conclusion The case herein reported adds to the previously-reported cases of this rare tumor.
Revisiting the Concept of Non- and Minimally Invasive Interventions in Early Glottic Cancer – Part II: Single Therapy Should be Favored over the Combination of Transoral Laser Microsurgery and Radiotherapy, Regarding the Postinterventional Voice Quality
Authors: Vlastarakos Petros V. , Georgantis Ilias , Nikolopoulos Thomas P. , Delidis Alexandros 
Published: August 2021

Abstract
Introduction Early glottic cancer (EGC) is associated with a high cure rate. Hence, patients and physicians also focus on the impact of the proposed treatment on the speaking function of the preserved larynx.
Objectives The present study assessed the impact of single-modality treatment (transoral laser microsurgery [TLM], or radiotherapy) or combination therapy for EGC on postinterventional voicing and explored factors which might explain the related perceptions.
Methods A total of 108 patients filled in the voice handicap index 10 questionnaire, 1 and 2 years postinterventionally. Non-parametric tests were used for the respective statistical analyses.
Results Sixty-four patients were treated with TLM, 15 with radiotherapy, and 29 with both modalities. Transoral microsurgery and radiotherapy were associated with postinterventional dysphonia, which attenuated between the first and second postintervention year (p = 0.000). No association between sociodemographic parameters and the attenuation of postinterventional dysphonia was identified for either treatment modality. Transoral microsurgery and radiotherapy resulted in comparable postinterventional voicing, in the first (p = 0.940) and second (p = 0.196) postintervention years. The addition of TLM to radiotherapy resulted in worse voice quality in the second, compared with the first postintervention year (p = 0.000), demonstrating a detrimental effect on speech intelligibility in noise (p = 0.000).
Conclusion Single therapy should be favored over the combination of TLM and radiotherapy for EGC in terms of retaining better postinterventional voice quality. Postinterventional dysphonia should be taken into account, during preinterventional counseling, as it may exert leverage on the quality of patients' lives. Patients and physicians should acknowledge the optimal time of voice function return, which seems to be extending up to two years posttreatment.
Giant Perianal Condyloma Successfully Treated with Podophyllin at 25% in Solid Petrolatum
Authors: Svidler López Laura , La Rosa Luciana , Cipollone Sofía , Sidra Gabriela L. , Regina José L. , Pastore Rita L. O. , Orcinoli Teresa , Stier Elizabeth A. 
Published: August 2021

Abstract
Purpose Giant perianal condyloma (GPC) is a rare condition. The effective treatment is a multidisciplinary challenge; topical treatments are usually ineffective, and surgical resection has significant morbidity. Podophyllin at 25% in solid petrolatum (25%PSP) can be an effective treatment option for GPC. The aim of the present study was to assess its response and tolerability.
Methods This retrospective, single-center case series evaluated the clinical response of 14 patients with GPC treated with 25%PSP in a public hospital in Buenos Aires between December 2015 and December 2019. After obtaining a full history and performing a physical exam, the lesions were measured and photographed. Biopsies were performed to exclude malignancy, as well as exams to rule out pregnancy. Podophyllin at 25% in solid petrolatum was administered topically in cases of GPC and washed off by the patients at home after 4 hours. The patients underwent at least 4 weekly visits, which included interval history, photodocumentation of the lesions, and provider-applied 25%PSP. The response rate was assessed by comparing measurements and the overall decrease in volume of the GPC based on photos from the first and last sessions. Adverse outcomes were noted.
Results In total, 10 men, 3 women, and 1 transgender woman with GPC unresponsive to prior treatments and a mean age of 34.5 years were included. A total of 12 patients were immunosuppressed. All the perianal lesions were circumferential and measured between 8 cm and 20 cm. Overall, 7 patients had genital condyloma outside of the anus and perianus; the histology showed low-grade squamous intraepithelial lesions in all cases. While on treatment, 7 patients reported dermatitis, and 71% of the patients had ≥ 75% reduction in lesion size.
Conclusions Podophyllin at 25% in solid petrolatum is an effective, well-tolerated topical treatment option for GPC.
Lean: Introduction of a Quality Improvement Concept into Percutaneous Nephrolithotomy to Improve Efficiency while Maintaining Safety
Authors: Fernandez Nicolas , Hannick Jessica H. , Escobar Rebeca , Serrano Adolfo 
Published: August 2021

Abstract
Introduction and objective Standardization of surgical interventions reduces complications and costs and positively impacts intra and postoperative outcomes. Implementation of the lean concept, initially proposed in the auto industry, now becomes an interesting approach in the surgical setting. We want to present the results of how percutaneous nephrolithotripsy (PCNL) in a high-level center can be positively impacted by implementing the lean concept.
Methods We evaluated a total of 140 PCNL procedures. Group 1 included all cases operated prior to implementing the lean concept and group 2 was composed of those operated after implementing the lean concept. We looked for all seven sources of waste to identify and modify our practice to improve efficiency and safety. We then collected intraoperative times and compared the ones prior to those after the implementation.
Results After implementing the lean concept, with an average of six PCNL cases per day, a comparison was made to an equivalent number of cases prior to the lean implementation (group 1). The average total operative time for PCNL preintervention was 138 (confidence interval [CI]: 79 to 170) minutes and postlean intervention was 71.1 (CI: 43 to 157) minutes. Surgical time (cystoscopy to skin closure) was 36.1 (CI: 25 to 50) minutes prelean and 50 minutes postlean (CI: 23 to 154). For this last one, bilateral procedures were performed. Operative room turnover time was 27.8 (CI: 21 to 38) minutes prelean and 5.67 (CI: 3.5 to 12) minutes postlean. Induction time was 16.5 (CI: 5 to 55) minutes prelean and 5.4 (CI: 3.5 to 7.5) minutes postlean.
Conclusion Implementation of the lean concept enables optimization of the surgical procedure, allowing hospitals to reduce costs and standardization.
Guided Lamb waves in reconfigurable phononic crystal waveguides
Authors: Wang Yan-Feng , Yang Li , Wang Ting-Ting , Chen A-Li , Laude Vincent , Wang Yue-Sheng 
Published: August 2021

We demonstrate experimentally the manipulation of Lamb waves guided along reconfigurable phononic circuits created by defects composed of threaded rods held with nuts in a perforated solid phononic crystal slab. Adjusting the free length of the rod, the resonant frequency of the defect can be tuned, without any change in the supporting phononic crystal slab. Both straight and bent waveguides are fabricated and measured in an aluminum sample with a lattice constant of 20 mm and a complete bandgap extending from 50 to 70 kHz. Guidance of Lamb waves is clearly observed by a Doppler vibrometer, even after 90° bends. The eigenmodes of guided waves are obtained using finite element analysis to explain the tuning of resonances through a bending cantilever model. Numerical and experimental results are generally found to be in fair agreement. They also suggest that the guiding frequency is rather independent of the details of the waveguides. They are of significance for the design of reconfigurable phononic devices.
A cryostat designed for x-ray fluorescence holography experiments down to 4 K
Authors: Hayashi Kouichi , Happo Naohisa , Hosokawa Shinya 
Published: August 2021

A cryostat was designed for x-ray fluorescence holography (XFH) experiments at low temperatures down to 4 K, where many functional materials show characteristic transitions, such as high-temperature superconducting, magnetic, dielectric, and valence transitions. For XFH measurements, changes in two angles of samples with respect to the incident synchrotron x-ray beam, i.e., incident angle θ and azimuthal angle ϕ, are necessary. A low-temperature specialized small piezoelectric motor is installed at the cryostat head for ϕ, and the cryostat itself is rotated by a stepping motor for θ. The heat from the piezoelectric motor for ϕ and the cryostat power determining the total cryostat mass were optimized for the limited working spaces and beamtimes of synchrotron experiments. Some examples of the XFH results at low temperatures, such as a Pb crystal and an YbInCu4 valence transition material, are presented to show the feasibility of this low-temperature equipment.
Ultrawideband, high-power, microstripline test setup for experimental study and characterization of multipactor
Authors: Mirmozafari M. , Behdad N. , Booske J. H. 
Published: August 2021

This paper discusses different components of a high-power test setup for replicating multipactor in a laboratory environment. We developed a broadband test cell for parallel-plate multipactor discharges that can operate from DC to 1.2 GHz. The proposed test cell design features a multi-step transition from a coaxial line to a microstripline with negligible insertion loss suitable for high-power breakdown experiments. The multipactor section is adjustable and replaceable, offering flexibility in conducting various multipactor tests, such as different gap distances and local surface treatments. We incorporated two local multipactor detection methods, an electron multiplier tube and a biased standalone probe to rapidly and reliably detect the growth of secondary electrons in the multipactor vicinity. The driving circuits of these detection methods have been designed to filter out RF coupling while preserving the detection signal due to multipactor current. To demonstrate the accuracy of the proposed test setup, we validated the multipactor thresholds determined in simulation using the 3D particle-in-cell module of CST Microwave Studio. We obtained very good agreement between simulation and experimental results over the broadband frequency range. The topics discussed in this paper further inform how to address the design obstacles encountered in developing a bench-top multipactor test setup.
High-throughput and versatile design for multi-layer coating deposition using lab automation through Arduino-controlled devices
Authors: Hnatiuk Michael , Kimball Dave , Kolanthai Elayaraja , Neal Craig J. , Kumar Udit , Sakthivel Tamil Selvan , Seal Sudipta 
Published: August 2021

Laboratory and experimental scale manufacturing processes are limited by human error (e.g., poor control over motion and personal subjectivity), especially under fatiguing conditions involving precise, repetitive operations, incurring compounding errors. Commercial layer-by-layer (LbL) automation devices are prohibitively high-priced (especially for academic institutions) with limited flexibility in form factor and potentially software-associated constraints/limitations. In this work, a novel automated multi-beaker dip coater was fabricated to facilitate nano cerium oxide/polymer coatings via an LbL dip coating process and the synthesis of nano ceria films via a novel successive ionic layer adsorption and reaction method on a glass substrate. Automation of tasks, such as those mediating the detailed procedures, is essential in producing highly reproducible, consistent products/materials as well as in reducing the time commitments for laboratory researchers. Herein, we detail the construction of a relatively large, yet inexpensive, LbL coating instrument that can operate over 90 cm in the horizontal axis, allowing, for example, up to eight 200 ml beakers with accompanying stir plates. The instrument is operated by simple “off-the-shelf” electronics to control the path and timing of the samples with open-source software while providing precision at ±0.01 mm. Furthermore, 3D-printed components were used to maximize the number of substrates that could be coated simultaneously, further improving the sample production rate and reducing waste. Further possibilities for automation beyond the detailed device are provided and discussed, including software interfaces, physical control methods, and sensors for data collection/analysis or for triggers of automated tasks.
Interfacial hydration determines orientational and functional dimorphism of sterol-derived Raman tags in lipid-coated nanoparticles
Authors: An Xingda , Majumder Ayan , McNeely James , Yang Jialing , Puri Taranee , He Zhiliang , Liang Taimeng , Snyder John K. , Straub John E. , Reinhard Björn M. 
Published: August 2021

SignificanceDerivatized sterols and terpenoids represent an effective platform for introducing functionality into the surface of lipid-coated NPs and other membrane-based materials. This work demonstrates that the hydrogen-bonding network (HBN) at the lipid–water interface plays a crucial role in determining the orientation of derivatized sterols and other terpenoids in hybrid lipid membranes. A rational engineering of the interactions with the HBN provides control over the molecular orientation in the lipid coating and facilitates configurable surface properties that adjust in response to external cues. The control of the surface properties combined with the plasmonic signal enhancement through the NP core renders L-NPs bright Raman tags for the identification of biomarker overexpression at the single-cell level.
Assessment of socio-ecological resilience of agropastoralists to climate change and variability impacts in Bariadi district, Tanzania.
Authors: Cyrilo Eugen , Mung'ong'o Claude G. 
Published: August 2021

Abstract

In developing countries like Tanzania, societal vulnerability to the risks of climate change and variability (CC&V) exacerbate ongoing social and economic challenges because people's livelihoods are largely dependent on resources that are sensitive to climate change such as agriculture. Although studies show that most communities in Africa have low adaptive capacity, for centuries people have developed traditional adaptation strategies to face climate inter-annual variability and extreme events based on their long-term experiences. Various studies show how CC&V have impacted the socio-economic and and environmental conditions among the pastoral and agropastoral societies. However, little emphasis has been given to studying the community's resilience status to CC&V impacts. Much of the focus has been placed on studying the community vulnerability and impacts of CC&V as well as coping and adaptation strategies to avert CC&V impacts. Little is known on how the interaction between society and nature can enhance or reduce community resilience under changing climate. The study was conducted in two villages, Ibulyu and Mahaha, in Bariadi District. The main objective of the study was to deepen our understanding of the socio-ecological resilience of agropastoral communities to CC&V impacts in a semi-arid district. The study employed both qualitative and quantitative research designs. Quantitative data were captured through a household survey whereas qualitative data was collected through focus group discussion, key informant interviews and field observation. The results show that CC&V have negatively affected the farming system in the study area. The ecological setting of the area has significantly been altered to the extent that it cannot provide the required ecosystem services and products that are important for human and livestock sustainance. Changes in the production system have negatively affected community resilience and increased their vulnerability.
The effects of assisted and resisted plyometric training on jump height and sprint performance among physically active females
Authors: Strate Morten , Stien Nicolay , Saeterbakken Atle Hole , Andersen Vidar 
Published: August 2021

ABSTRACTThe aim of the present study was to compare the effects of assisted and resisted plyometric jump training on jump height, sprint performance (acceleration (0–20m), maximum speed (30–40m) and 40m sprint time) among physically active females. Fifty‐six participants (age: 21.1 ± 1.7 years; body mass: 64.2 ± 7.0 kg; height: 168.0 ± 5.6 cm) were randomly allocated to either an assisted (n = 16) or resisted training group (n = 17), or a control group (n = 14). Nine participants dropped out during the intervention. The training sessions consisted of three different plyometric jump exercises over an eight‐week period, while the control group continued their normal training routine. The results revealed a significant between‐group difference in jump height and maximal speed. The resisted training group achieved a significantly greater improvement in jump height compared to the active control group (p = .04, ES=1.06), and a significantly greater improvement in maximal speed (p = .02, ES = 0.93) when compared to the assisted training group. No other group differences were observed for jump height, acceleration or in maximal speed (p = .31–.53). The resisted training group improved jump height (p = .01, ES = 0.62) and maximum speed (p = .03, ES = 0.48) from pre‐ to post‐test, while the control group improved maximal speed (p = .04, ES = 0.37) and acceleration (p = .01, ES = 0.68). All three groups improved their 40m sprint time from pre‐ to post‐test (p = .01–.04, ES = 0.38–0.45). In conclusion, resisted plyometric training was more effective than assisted plyometric training for improving the maximal speed and more effective than the active control condition for increasing jump height.
Near-field electromagnetic coupling between helices
Authors: Petrov P , Hibbins A P , Sambles J R 
Published: August 2021

Abstract
A fresh approach to the design of metamaterials formed from closely spaced helices is developed based on the retrieved values of electric and magnetic coupling coefficients between adjacent helices. A coupling retrieval method has been implemented to obtain numerical and experimental values for both electric- and magnetic-coupling coefficients between helical elements. Couplings between both right- and left-handed helices in side-by-side and axial arrangements are evaluated providing both positive and negative electric-, as well as magnetic-coupling components. The dependence of coupling strength on separation distance, relative axial rotation, helical pitch and the geometrical arrangement of the helices has been quantified both numerically and experimentally and a geometry giving zero net-coupling between very close helices is illustrated.