bluuebunny/crossref_metadata_2025_split huggingface dataset:
Acute and Long-Term Comparison of Fixed vs. Self-Selected Rest Interval Between Sets on Upper-Body Strength
Authors: Simão Roberto , Polito Marcos , Freitas de Salles Belmiro , Marinho Daniel Almeida , Garrido Nuno D. , Junior Evaldo Rui Tavares Santos , Willardson Jeffrey M. 
Published: August 2020

Abstract
Simão, R, Polito, M, de Salles, BF, Marinho, DA, Garrido, ND, Santos Junior, ERT, and Willardson, JM. Acute and long-term comparison of fixed vs. self-selected rest interval between sets on upper-body strength. J Strength Cond Res 36(2): 540–544, 2022—The effects of different rest interval durations between sets has been widely studied, but only recently, the self-selected rest interval (SSRI) has been a matter of interest. However, previous studies comparing fixed and SSRI have investigated only acute responses. The purpose of this study was to analyze the acute and long-term effects of a fixed rest interval (FRI) vs. an SSRI between sets on upper-body performance and strength gains. Thirty-three trained men were randomly divided into 2 groups: FRI (75 seconds between sets), and SSRI. Both groups performed 3 sets with 75% of 1-repetition maximum until repetition failure in the chest press (CP), lat pull-down (LPD), shoulder press (SP), and seated row (SR) 3 times a week for 8 weeks. The results demonstrated that the SSRI allowed for significantly greater repetition performance vs. the FRI in the CP (26.1 ± 2.0 vs. 21.5 ± 1.8), LPD (30.1 ± 2.3 vs. 24.9 ± 1.9), SP (24.0 ± 2.8 vs. 17.4 ± 1.5), and SR (26.3 ± 1.6 vs. 22.0 ± 1.6). In addition, the following strength gains were observed: SSRI (CP: 6.8%, LPD: 8.0%, SP: 6.7%, SR: 7.8%) and FRI (CP: 7.4%, LPD: 6.7%, SP: 6.1%, SR: 7.0%) without significant differences between the groups. In conclusion, within an 8-week period, both protocols seem to be effective for strength gains, despite the higher training volume accomplished by the SSRI group. However, the FRI was 37% more time efficient.
Reliability and Validity of a 6-Minute Yo-Yo Intermittent Endurance Test Level 2 in Subelite Part Time Male Soccer Players
Authors: Gibson Neil , Easton Chris , Williams Michael , McCunn Robert , Gibson Neil V. 
Published: August 2020

Abstract
Gibson, N, Easton, C, Williams, M, McCunn, R, Gibson, NV. Reliability and validity of a 6-minute Yo-Yo Intermittent Endurance Test Level 2 in subelite part time male soccer players. J Strength Cond Res 36(4): 1011–1018, 2022—The aim of this study was to assess the reliability and relationship to maximal intermittent running performance of the 6-minute Yo-Yo Intermittent Endurance Test Level 2 (YYIET2), among subelite part time soccer players. Twenty male soccer players (15–22 years) completed three 6-minute YYIET2 trials with heart rate (HR), PlayerLoad, and rating of perceived exertion assessed during the protocol and HR and blood lactate assessed during 5 minutes of recovery. Subjects also completed a maximal version of the YYIET2 and the maximal Yo-Yo Intermittent Recovery Test Level 1 (YYIRT1) and 2 (YYIRT2). Heart rate at 4 and 6 minutes, PlayerLoad at 4 minutes, and HR recovery at 2, 3, 4, and 5 minutes during recovery from the 6-minute YYIET2 demonstrated little variance between tests. Correlations between variables measured during and after the 6-minute YYIET2 and distance covered in maximal tests ranged from r = 0.02 to −0.72. The 6-minute YYIET2 provides practitioners with a method of reliably assessing HR responses within subelite part time soccer players, although large correlations with maximal assessments suggest it can be used as a proxy measure for maximal intermittent running performance. Given its ease of administration and low time cost, the 6-minute YYIET2 offers practitioners a useful means of tracking training status and movement efficiency in players longitudinally.
The Impact of Recovery Time on Performance in Division I Collegiate Beach Volleyball Players
Authors: Holtgeerts Rebecca N. , Gann Joshua , Jung Hyun Chul , Hey William 
Published: August 2020

Abstract
Holtgeerts, RN, Gann, J, Jung, HC, and Hey, W. The impact of recovery time on performance in Division I collegiate beach volleyball players. J Strength Cond Res 36(3): 667–673, 2022—The sport of beach volleyball has recently grown significantly at the collegiate level, and collegiate beach volleyball players often practice and compete 5 or 6 days per week during the competitive season. This study examined the effects of the amount of recovery time on performance in Division 1 Collegiate beach volleyball players. Ten female NCAA Division 1 beach volleyball players, aged 20.2 ± 1.23 years, participated in the study. Subjects completed 2 trials consisting of 4 sessions of volleyball play (with a 24-hour recovery trial and 48-hour recovery trial). Trials were randomized and counter balanced. Each trial measured counter-movement jump, 5-10-5 agility time, 3 beach volleyball drills, and scores of a beach volleyball match. Perceived recovery, sleep quality, and rating of perceived exertion were also recorded. The significance level set for the study was p ≤ 0.05. Counter-movement jump showed small but significant increases following the 24-hour recovery period (p ≤ 0.05). 5-10-5 agility test showed significant improvement with the 48-hour recovery period (p ≤ 0.05). Perceived Recovery scores demonstrated significant increases in both recovery periods (p ≤ 0.05). Beach volleyball drill and match performance were not affected by the change in recovery time. These results indicate that, although some physical skills are affected by recovery time, beach volleyball performance as a whole is relatively stable over several days. It is normal for NCAA athletes to play back-to-back days and with little recovery time, and these results indicate that this practice does not negatively affect sport performance.
A 3-Week, Low-Carbohydrate, High-Fat Diet Improves Multiple Serum Inflammatory Markers in Endurance-Trained Males
Authors: Waldman Hunter S. , Heatherly Alexander J. , Killen Lauren G. , Hollingsworth Angela , Koh Yunsuk , O'Neal Eric K. 
Published: August 2020

Abstract
Waldman, HS, Heatherly, AJ, Killen, LG, Hollingsworth, A, Koh, Y, and O'Neal, EK. A three-week, low-carbohydrate, high-fat diet improves multiple serum inflammatory markers in endurance-trained males. J Strength Cond Res 36(9): 2502–2508, 2022—This study examined the effects of a low-carbohydrate, high-fat diet (LCHF) on inflammatory marker responses in middle-aged endurance athletes. Eight male runners maintained their habitual mixed diet (HMD) in the first phase of the study before switching to a noncalorically restricted LCHF diet (∼70% of kcals from fat; carbohydrate <50 g) for 3 weeks. Subjects completed a 50-minute fixed pace treadmill running protocol in a hot environment, followed by a 5-km outdoor time trial. Fasting serum samples were collected immediately after exercise and heat stress restriction, and again 24 hours after the exercise/heat stressor. Thirty inflammation markers were assessed using the multiplex flow immunoassay technique. Seven markers (BAFF/TNFSF-13, sCD30/TNFRSF8, sCD163, Chitinase3-like1, gp130SIL-6Rβ, sTNFR-1, and sTNFR-2) reached statistical significance (p < 0.05) favoring LCHF before exercise, and sCD30/TNFRSF8 favored (p < 0.05) LCHF before (HMD = 459 ± 111; LCHF = 296 ± 100) and after (HMD = 385 ± 104; LCHF = 285 ± 104 pg·ml−1) exercise. Although the current dietary intervention was short in duration, LCHF seems to offer some protection against multiple chronic inflammation markers for physically active men between ages 30 and 50 years.
Postactivation Performance Enhancement of Concentric Bench Press Throw After Eccentric-Only Conditioning Exercise
Authors: Krzysztofik Michal , Wilk Michal , Lockie Robert G. , Golas Artur , Zajac Adam , Bogdanis Gregory C. 
Published: August 2020

Abstract
Krzysztofik, M, Wilk, M, Lockie, RG, Golas, A, Zajac, A, and Bogdanis, GC. Postactivation performance enhancement of concentric bench press throw after eccentric-only conditioning exercise. J Strength Cond Res 36(8): 2077–2081, 2022—This study examined changes in power output and bar velocity in the concentric-only bench press throw (CONONLY) after sets of eccentric-only bench press exercises (ECCONLY) at 2 supramaximal loads. Thirteen strength-trained men participated in this study (age = 25.7 ± 1.9 years, body mass = 94.8 ± 8 kg, 1 repetition maximum [1RM] = 147 ± 14.2 kg, and strength training experience = 6.5 ± 2.2 years). The subjects performed 2 conditioning sets of the bench press exercise of 2 repetitions each, with a 5-minute rest interval between sets, using the ECCONLY mode against 110% or 130% of concentric 1RM load. The 1 repetition of the CONONLY bench press throw with a load of 30% 1RM was performed before and 5 minutes after the conditioning activity (CA) to assess changes in peak power (PP) and peak velocity (PV). The differences between the analyzed variables before and after the CA were determined using a 2-way repeated measures analysis of variance. There was an increase of PP by 10.5 ± 6.0% (effect size [ES] = 0.34) and 9.9 ± 8.1% (ES = 0.33) for the 110 and 130% of concentric 1RM conditions, respectively, with no difference between the 2 conditions (p < 0.01 main effect time, no interaction). Similarly, PV increased by 5.9 ± 5.5% (ES = 0.40) and 6.1 ± 6.1% (ES = 0.43) for the 110 and 130% of concentric 1RM conditions, respectively, with no difference between the 2 conditions (p < 0.01 main effect time, no interaction). Activation with an ECCONLY contraction and loads exceeding 1RM are effective at improving power output and bar velocity during the CONONLY bench press throw.
Catecholamine-induced cerebral vasospasm and multifocal infarctions in pheochromocytoma
Authors: Madhok Jai , Kloosterboer Amy , Venkatasubramanian Chitra , Mihm Frederick G 
Published: August 2020

Summary
We report the case of a 76-year-old male with a remote history of papillary thyroid cancer who developed severe paroxysmal headaches in the setting of episodic hypertension. Brain imaging revealed multiple lesions, initially of inconclusive etiology, but suspicious for metastatic foci. A search for the primary malignancy revealed an adrenal tumor, and biochemical testing confirmed the diagnosis of a norepinephrine-secreting pheochromocytoma. Serial imaging demonstrated multiple cerebral infarctions of varying ages, evidence of vessel narrowing and irregularities in the anterior and posterior circulations, and hypoperfusion in watershed areas. An exhaustive work-up for other etiologies of stroke including thromboembolic causes or vasculitis was unremarkable. There was resolution of symptoms, absence of new infarctions, and improvement in vessel caliber after adequate alpha-adrenergic receptor blockade for the management of pheochromocytoma. This clinicoradiologic constellation of findings suggested that the etiology of the multiple infarctions was reversible cerebral vasoconstriction syndrome (RCVS). Pheochromocytoma remains a poorly recognized cause of RCVS. Unexplained multifocal cerebral infarctions in the setting of severe hypertension should prompt the consideration of a vasoactive tumor as the driver of cerebrovascular dysfunction. A missed or delayed diagnosis has the potential for serious neurologic morbidity for an otherwise treatable condition.

Learning points:

The constellation of multifocal watershed cerebral infarctions of uncertain etiology in a patient with malignant hypertension should trigger the consideration of undiagnosed catecholamine secreting tumors, such as pheochromocytomas and paragangliomas.

Reversible cerebral vasoconstriction syndrome is a serious but reversible cerebrovascular manifestation of pheochromocytomas that may lead to strokes (ischemic and hemorrhagic), seizures, and cerebral edema.

Alpha-adrenergic receptor blockade can reverse cerebral vasoconstriction and prevent further cerebral ischemia and infarctions.

Early diagnosis of catecholamine secreting tumors has the potential for reducing neurologic morbidity and mortality in patients presenting with cerebrovascular complications.
Соціо-еколого-економічні аспекти розвитку екологічного туризму в Українських Карпатах
Authors: Maksymiv Lyudmyla , Harmatiy Tetyana , Bets Marianа 
Published: August 2020

Проаналізовано роль туризму в соціально-економічному поступі країни. Визначено особливості екологічного туризму та його роль в економіці регіону. Охарактеризовано стан і проблеми розвитку екологічного туризму в Україні. Наведено особливості організації туристичної діяльності НПП «Сколівські Бескиди», зокрема напрями розвитку екологічного туризму. За допомогою розробленої авторами анкети здійснено опитування громадян стосовно їхньої готовності добровільно фінансово підтримувати розвиток екологічного туризму на території НПП «Сколівські Бескиди». Всього було опитано 80 осіб. З’ясовано, що значна частина опитаних респондентів готова жертвувати певну частку своїх доходів на розвиток природоохоронних територій. Половина респондентів висловили готовність брати добровільну участь у покращенні екомаршрутів (49%), а 27% – за винагороду. Чверть опитаних (24%) не готові брати участь у покращенні екологічних маршрутів на території парку. Поглиблений аналіз відповідей респондентів, не готових виділяти кошти на покращення екологічних маршрутів на території парку, показав, що третина респондентів цієї категорії не готові брати участь у покращенні екологічних маршрутів на території НПП (36%), третина (30%) готові на волонтерських засадах і третина (34%) – готові на умовах оплати.
За даними SWOT-аналізу виявлено рушії і перешкоди на шляху розвитку екологічного туризму. На його основі розроблено пропозиції щодо перспектив розвитку екологічного туризму в Українських Карпатах з погляду забезпечення належного рівня добробуту місцевих громад шляхом доступу до гідних робочих місць і гідної оплати праці та без порушення природних екосистем.
Visions, Missions and Strategies of selected International Forest Research Organizations
Authors: Koller Alexandra , Weber Norbert 
Published: August 2020

This paper provides a comparison of current visions, missions and strategies of three international forest research organizations: European Forest Institute (EFI), Center for International Forest Research (CIFOR) and International Union of Forest Research Organizations (IUFRO). Against the background of theoretical conceptions of visions, missions and strategies, a qualitative tabular content analysis is applied. A special focus lies on the thematic work areas of the organizations and their connection to the Sustainable Development Goals (SDGs).
Visions and missions provide an important guidance for employees and other people in the organization, but also for communication to outsiders. Within strategies, Non-Profit Organizations can define their mission and vision as well as strategic goals. Recent missions and visions of EFI, CIFOR and IUFRO are analyzed with a textual analysis, while for their strategies a summarizing content analysis is used.
The comparison discloses differences between the three organizations with regard to their orientation towards societal impact and/or advancement of science. However, all of them strive for improving living conditions for people. CIFOR clearly focuses on the SDGs and covers all of them, while IUFRO and EFI do this only partially. Except for doublings, EFI and IUFRO together address 12 SDGs out of 17 SDGs. This finding is especially important in the light of the current cooperation between EFI and IUFRO. Both organizations signed a Memorandum of Understanding in 2019, where they claim to account for achieving the SDGs by strengthening the role of forest conservation and sustainable forest management.
A new unusual-looking Cyrtochilum (Orchidaceae) from Sierra Nevada de Santa Marta in Colombia
Authors: Dalström Stig , Castro Cristian 
Published: August 2020

A new and unusual-looking Cyrtochilum species is described, compared with the possibly closely related Cyrtochilum leucopterum and illustrated by drawings and a photograph of the holotype. It is distinguished from Cyrtochilum leucopterum by having an elongate basal portion of the lip with erect lateral lobes, and a trilobed front lamina with a glabrous, blunt and thickened bilobed lip callus, versus what appears to be more horizontally spreading lateral lip lobes, and a densely micro-pubescent apically multifid lip callus for the latter species. The new species also has some purported silica bodies of unknown significance visible in plant and flower parts, which are not present in C. leucopterum.
Key Words: Colombia, Cyrtochilum leucopterum, Helmuth Schmidt-Mumm, Oncidiinae, new species
OBJETO VIRTUAL DE APRENDIZAJE PARA DESARROLLAR LAS HABILIDADES NUMÉRICAS: UNA EXPERIENCIA CON ESTUDIANTES DE EDUCACIÓN BÁSICA
Authors: Albarracín Villamizar Carmen Zulay , Hernández Suárez César Augusto , Rojas Suárez Jhan Piero 
Published: August 2020

El presente reporte tiene como objetivo elaborar un objeto virtual de aprendizaje para desarrollar las habilidades numéricas a través de las operaciones básicas de matemática. La metodología propuesta es aplicada. Se toma el modelo ADDIE para la construcción del OVA. La técnica y el instrumento serán un cuestionario tipo Likert. Para evaluar la calidad del OVA a través de un equipo evaluador, los cuales emitirán su juicio sobre el carácter didáctico y tecnológico del OVA. Los resultados y el análisis se mostrarán en frecuencias simples para los ítems y promedios de medias para la evaluación del OVA en su carácter didáctico y tecnológico.
Oxidative stability of a Colombian Criollo mango (Mangifera indica) drink fortified with peel
Authors: MORALES S. Marcela , ZAPATA A. Karol , ALZATE A. Andrés Felipe , ANGULO Alberto Antonio , ROJANO Benjamín Alberto 
Published: August 2020

Background: the analysis of the oxidative stability allows to determine the functionality of the antioxidants present in food, over time. Objectives: in this research, a functional mango drink is elaborated and the changes in the antioxidant profile and physicochemical parameters of the drink subjected to accelerated storage conditions are evaluated. Methods: the drink was distributed at 22, 35 and 45°C for 80 days. To monitor oxidative stability, the antioxidant analyzes ABTS, ORAC, mangiferin, total phenols and total carotenoids were performed; in addition, physicochemical properties (pH and °Bx) and L*a*b* coordinates, were monitored. The fit of the data to the Arrhenius model was verified and the shelf life was determined considering a 50% loss in the evaluated attributes, such as the critical limit. Results: the deterioration of the antioxidant attributes and the color at the study temperatures is observed, being more pronounced at 45°C. The least stable attributes are the carotenoids and the b-coordinate, presenting losses greater than 50%. The values of mangiferin exhibit deterioration lower than 40% and similar in the temperatures evaluated. The pH and Brix degrees do not show significant changes. The deterioration reactions are of order one and followed the Arrhenius law, presenting coefficients of determination
greater than 0.90. The values of the activation energy (Ea) are within the range reported for fruit juices, standing out the value found for the b* coordinate (44.59 kJ.mol-1). Conclusions: the ORAC units are
the chosen attribute to condition the life of the beverage, giving 10 months of useful life at 4°C, however, it is recommended to perform sensory and microbiological analyzes under the same conditions
PRODUCTION OF VINEGAR FROM AN ALCOHOLIC 1 BEVERAGE OF 2 ANDEAN BERRY (Vaccinium meridionale SW), MEASUREMENT OF 3 ANTIOXIDANT ACTIVITY AND EVALUATION OF CYTOTOXIC EFFECT ON 4 COLON CANCER CELLS SW480
Authors: Zapata Vahos Isabel Cristina , Ochoa Agudelo Susana , Alzate Arbelaez Andres Felipe , Zapata Zapata Arley David , Rojano Benjamin Alberto 
Published: August 2020

BACKGROUND: Vaccinium meridionale presents fruits with a high content of phenolic compounds and anthocyanins and therefore a high antioxidant capacity.
OBJECTIVE: The aim was the production of vinegar from three treatments of berries alcohol beverage, to evaluate its antioxidant and cytotoxic activity.
METHODS: Vinegars were prepared by acetic fermentation from alcoholic beverages of Andean berries by three treatments: mechanical maceration, heating, and mixing. The titratable acidity and acetic acid content were evaluated in the vinegar; antioxidant potential (DPPH, FRAP, and ORAC); content of antioxidant metabolites (total polyphenols, total anthocyanins, and phenolic hydroxycinnamic acids) were evaluated in the juice, alcoholic beverages, and vinegar; the antiproliferative capacity in colon cancer cell SW480 was determined in vinegar.
RESULTS: Alcoholic beverages presented the main antioxidant activity. However, after the acetic fermentation, it was observed a fall in the antioxidant potential in all techniques evaluated in three treatments. The vinegar obtained by heated and mixed treatments were presented the highest values in antioxidant activity, phenols, and anthocyanins. Antiproliferative activity inhibitions of vinegars in cell viability were 6.2% (20 μg/mL) and 22.5% (200 μg/mL).
CONCLUSIONS: Production of acetic acid is independent of the treatment. The antioxidant activity is favored in alcoholic beverages with the treatment of hot maceration. Andean berry CAL vinegar has antiproliferative activity, inhibiting a colon carcinoma SW480 line although in a low amount compared with reports in the literature.
O2O Business Model of Meituan in China
Authors: Hosen Md Saikat 
Published: August 2020

The research applies performance evaluation of O2O Business Model of China. It means evaluate how well the company performance. The focus aim is achieved through the O2O Business Model and Meituan, Ratio analysis of Meituan (2017-2019), share price movement we have use average moving Meituan Dianping (3690.HK), price to sales ratio among E-commerce firms. It is most important factor for performance evaluation. The graphical analysis and comparison are applying analysis and company’s measurement of all type of financial ratio. Share price movement indicate the trend of company’s present performance, as well as price to sales ration comparison among other tech companies. That Meituan is waiting, the company will grow strongly by its core market the food delivery business.