bluuebunny/crossref_metadata_2025_split huggingface dataset:
A cross-sectional study of 2550 amateur cyclists shows lack of knowledge regarding relevant sports nutrition guidelines
Authors: Janse van Rensburg D C , Sparks I M , Fletcher L , Jansen van Rensburg A 
Published: June 2019

Background: Amateur cyclists use a wide variety of supplements and nutritional substances to increase performance in addition to their training.
Objectives: The intended nutritional supplement use, carbohydrate (CHO) use and hydration practices of amateur cyclists before, during and after endurance cycling were analysed. Evidence of ignorance regarding the use of sports supplements and CHO, as well as the disregard of hydration strategy was hypothesised.
Methods: Amateur cyclists, of all age and sex groups, were requested to complete an online survey anonymously on the 2013 Momentum 94.7 Cycle Challenge website, a few days before the event.
Results: Responses were received from 2 550 out of 30 640 race entrants (8%); representing a distribution of 75% males, 25% females, with the majority between 25 to 45 years old. Nutritional supplements were used by 59% of respondents, with 77% dose adherence, and 29% with supplement ingredient knowledge. Half of the respondents (48%) planned to carbo-load two-three days before the event, while only five percent used professional advice to scientifically calculate their carbo-loading requirements. CHO were consumed by 81% during the event. Hydration preferences during the race were sports drinks (59%) and water (22%); and after the race 45% preferred a sports drink and 40% water. Ingredients, taste, colour, and temperature were criteria used to choose a sports drink. Only 18% of respondents knew to use both colour of urine and thirstiness to determine post-race fluid requirements.
Conclusion: The authors concluded that amateur cyclists had insufficient knowledge regarding nutritional supplement ingredients and usage, CHO requirements and carbo-loading practices, and hydration strategies before, during and after the event.
Preventing the seemingly unpreventable – challenging the return-to-play criteria for recurrent hamstring strain prevention
Authors: Craddock N , Buchholtz K 
Published: June 2019

Background: Hamstring strains are one of the most common injuries in sport. Previous injury has been found to be one of the greatest risk factors associated with recurrent hamstring strains. Although rehabilitation programmes have been developed and implemented to aid safe and efficient return-to-play, the incidence of hamstring injuries has not decreased.
Discussion: As hamstring strains most commonly occur during the eccentric phase of muscle action, rehabilitation should focus on eccentric muscle strengthening. The L-protocol and the Nordic Hamstring Exercise protocol strengthen the hamstring muscles eccentrically. They have been found to be effective in decreasing the incidence of new hamstring strains as well as the rate of recurrence. This commentary therefore aims to suggest changes to the return-to-play criteria following hamstring strains to prevent the seemingly unpreventable.
Sacroiliac tuberculosis masquerading as mechanical lower back pain in a collegiate basketball athlete: a case presentation
Authors: Moyaert M , Viljoen J , Viviers P , Derman W , De Villiers R 
Published: June 2019

Background:Sacroiliac tuberculosis is a rare condition for which early diagnosis and effective management frequently proves challenging. This report describes a case that was initially overlooked due to its presentation and unreported constitutional symptoms.
Aim:To alert clinicians about skeletal tuberculosis, an often neglected diagnostic differential, which requires a high index of clinical suspicion, especially for patients from endemic areas.
Findings:This patient’s presentation (sports injury) and unreported constitutional symptoms resulted in a delay in the diagnosis and initial institution of treatment.
Implications:This report illustrates the importance of specifically asking about constitutional symptoms, even in sports injury settings and being mindful of infectious diseases or other chronic medical conditions, which may masquerade as common sports injuries.
A comparison of the physical demands of a one-day cricket game and the training sessions of provincial cricket players using Global Positioning System tracking software
Authors: Webster Z , Travill A 
Published: June 2019

Background: Cricket is a highly technical skills-based game and coaches consequently focus on the improvement of skills during training sessions. However, a certain level of physical fitness is required to execute these skills optimally. Coaches tend to give little focused attention to the development of physical fitness during training, which could lead to players being physically unprepared for the demands of a game.
Objective: The purpose of this study was to assess and compare the physical demands of a one-day cricket game and a training session of provincial cricket players, using Global Positioning System units.
Methods: Nineteen male provincial cricketers participated in the research. The participants were classified into five sub-disciplines, namely, batting, fast bowling, spin bowling, fielding and wicketkeeping. The study employed a descriptive and comparative design as it essentially collected numerical data from Global Positioning System units to describe and compare the physical demands of a one-day game of cricket and a training session preceding these games. The variables used in the study included total distances travelled in the game which were divided into five movement categories, i.e. walking, jogging, running, striding and sprinting. Also included were average and maximum heart rates, number of sprints and average sprint distances.
Results: There were significant differences across all sub-disciplines and movement categories during training and the one-day game for provincial cricket players. Batsmen showed the greatest discrepancies between training and the game for all high-intensity movements (p<0.05).
Conclusion: The findings of this study highlight the different physical and physiological demands placed on players in the various sub-disciplines during training and the one-day game. The current study found the major disparity between training and the one-day game was amongst the batsmen.
Male Academy rugby union student-athletes in-season physical anthropometrical and physical performance changes, and comparisons with available data
Authors: Rishiraj N , Niven B 
Published: June 2019

Background: Physical performance demands of the rugby union (RU) game have increased over the past two decades. However, there are little data on these variables concentrating on developing RU players (student-athletes) over a competitive season.
Objectives: To investigate the potential enhancement of two physical anthropometrical and nine physical performance variables of male New Zealand RU Academy student-athletes over a competitive season and compare with similar published data.
Methods: Twenty student-athletes were recruited to the Otago Rugby Football Union (ORFU) two-year Academy Programme. Each week the student-athletes engaged in 25 hours of strength and conditioning training and participated in 15 hours of on-field rugby training with their respective ORFU Premier League team. Assessments sessions were scheduled for the start of the season, in-season, and pre-play-offs (week 31).
Results: Mean data from 20 student-athletes demonstrated a trivial effect size (ES) increase in body weight and skinfold measurements, while a paired t-test (p<0.05) resulted in concurrent significant improvements in lower-body power (ES = large), acceleration (ES = large), speed (10 m sprint, ES = small, 40 m sprint, ES = small), and upper body strength (bench press, ES = large and bench pull, ES = small). A non-significant physical performance improvement, with trivial ES difference, was also noted in anaerobic endurance performance.
Conclusion: Based on these data significant physical performance enhancements were observed during in-season Premier League competition while limiting fatigue and overtraining.
STUDI KOMPARASI HASIL BELAJAR ANTARA KELAS BINAAN ASTRA DENGAN KELAS REGULER PADA KOMPETENSI MEMELIHARA UNIT FINAL DRIVE POROS PENGGERAK RODA BELAKANG
Authors: Nopandi Ridwan , Haryadi Haryadi , Wiharna Ono 
Published: June 2019

Tujuan dari penelitian ini untuk memperoleh gambaran tentang hasil belajar kelas binaan Astra dalam ranah kognitif dan ranah psikomotor. Metode penelitian yang digunakan yaitu quasi exsperimental design dengan jumlah sampel 69 responden dari dua kelas yang berbeda. Instrumen yang digunakan tes dan observasi. Hasil penelitian menunjukkan kenaikan N-Gain kelas binaan Astra yaitu 0,59 dan skor rata-rata observasi adalah sebesar 27,2. Uji hipotesis diperoleh terdapat perbedaan yang signifikan antara hasil belajar kelas binaan Astra dengan kelas reguler.
STUDI PENCAPAIAN KOMPETENSI MEMBUBUT RATA DAN BERTINGKAT UNTUK MAHASISWA JPTM UPI YANG BERASAL DARI SMA DAN SMK
Authors: Iskandar Wanday M.P. , Karo Karo Uli , Sasmita Asep H. 
Published: June 2019

Penelitian ini bertujuan untuk mengetahui perbedaan pencapaian kompetensi membubut rata dan bertingkat untuk mahasiswa yang berlatar belakang pendidikan dari SMA dan dari SMK pada mata kuliah teknik pemesinan. Metode yang digunakan pada penelitian ini yaitu metode komparatif dengan pendekatan kuantitatif. Pengumpulan data pada penelitian ini dilakukan dengan test performance dimana mahasiswa melakukan pekerjaan dengan mesin bubut menggunakan panduan berdasarkan job sheet. Hasil penelitian menunjukkan bahwa rata-rata pencapaian kompetensi membubut rata dan bertingkat mahasiswa yang berlatar belakang pendidikan dari SMA dan dari SMK tidak ada perbedaan yang signifikan.
STUDI KOMPARASI PENINGKATAN HASIL BELAJAR MENGGUNAKAN MEDIA REALIA DENGAN MEDIA HANDOUT PADA MATA PELAJARAN ALAT UKUR
Authors: Irawan Verry A. , Sabri Sabri , Sasmita Asep H. 
Published: June 2019

Tujuan penelitian ini untuk mengetahui hasil belajar siswa yang menerapkan media handout dan media realia pada proses pembelajaran alat ukur mekanik presisi, serta mengetahui perbedaan peningkatan hasil belajarnya. Metode penelitian menggunakan metode quasi experimental design. Tipe kuasi eksperimen yang digunakan adalah non-equivalent control group design. Sampel dijadikan dua kelompok yaitu kelas kontrol diberi perlakukan handout dan kelas eksperimen diberi perlakuan media realita. Hasil penelitian menunjukan bahwa peningkatan hasil belajar pada mata pelajaran alat ukur dengan menggunakan media realia pada saat proses pembelajaran ternyata lebih besar dibandingkan dengan menggunakan media hand out. Hasil post-test pembelajaran dengan menggunakan media realia menunjukan peningkatan yang lebih besar.
HUBUNGAN PERSEPSI SISWA TENTANG METODE PEMBELAJARAN TEAM TEACHING TERHADAP MOTIVASI PENYELESAIN TUGAS GAMBAR TEKNIK
Authors: Solihin Amin , Wiharna Ono , Komaro Mumu 
Published: June 2019

Penelitian ini bertujuan untuk mengetahui memperoleh gambaran persepsi siswa tentang pelaksanaan metode pembelajaran team teaching, motivasi siswa dalam penyelesaian tugas gambarnya dan dan hubungan persepsi siswa tentang metode pembelajaran team teaching terhadap motivasi siswa dalam penyelesaian tugas gambar. Pengambilan data menggunakan angket. Populasi dalam penelitian ini adalah seluruh siswa kelas X Jurusan Teknik Kendaraan Ringan SMK Negeri 8 Bandung sebanyak 230 siswa dan jumlah sampel sebanyak 58 responden. Hasil penelitian diperoleh persamaan regresi Y = 36.33 + 0,27 X, dengan koefisien determinasi menunjukkan persentase sebesar 7,3%. Kesimpulan dari penelitian ini adalah persepsi siswa tentang metode pembelajaran team teaching dalam kategori baik. Motivasi penyelesaian tugas gambar cenderung dalam kategori yang cukup tinggi. Ada hubungan yang positif dan signifikan antara persepsi siswa tentang metode pembelajaran team teaching terhadap motivasi penyelesain tugas gambar pada mata pelajaran gambar teknik. Persepsi siswa tentang metode pembelajaran team teaching akan mempengaruhi motivasi penyelesain tugas gambar pada mata pelajaran gambar teknik.
Evaluasi Implementasi Praktik Kerja Industri Di SMK
Authors: Saputra Imam , Permana Tatang , Sriyono Sriyono 
Published: June 2019

Studi pendahauluan yang telah dilakukan melalui wawancara dengan guru di SMK Negeri 6 Bandung, bahwa pelaksanaan prakerin masih terdapat masalah yang terjadi pada siswa diantaranya: disiplin kerja kurang maksimal, hubungan sosial dengan mekanik tidak baik, budaya kerja kurang maksimal, dan rasa tanggung jawab terhadap pekerjaan kurang. Penelitian ini betujuan untuk mengetahui kesesuaian antara perencanaan prakerin dengan pedoman prakerin, dan pelaksanaan prakerin dengan pedoman prakerin, serta evaluasi prakerin dengan pedoman prakerin. Metode penelitian yang digunakan dalam penelitian ini adalah metode deskriptif. Model evaluasi yang digunakan adalah discrepancy model, discrepancy model ini digunakan untuk mengukur adanya perbedaan antara yang seharusnya dicapai dengan yang sudah real dicapai. Responden pada penelitian ini adalah 1 orang Wakil Kepala Sekolah bidang Hubin, 1 orang guru program keahlian, 1 orang instruktur dari Industri dan 25 siswa kelas XII TKR 6 yang telah melaksanakan prakerin. Teknik pengumpulan data yang digunakan adalah angket dan wawancara. Hasil temuan penelitian dari analisis data adalah perencanaan prakerin sesuai dengan pedoman prakerin, pelaksanaan prakerin sesuai dengan pedoman prakerin, dan evaluasi prakerin sesuai dengan pedoman prakerin.
STUDI EKSPLORASI PENGELOLAAN DAN KEPUASAN DALAM PEMANFAATAN SARANA DAN PRASARANA WORKSHOP YANG TELAH MENERAPKAN SISTEM MANAJEMEN MUTU ISO 9001
Authors: Pratama Alfian S. , Darmawan Bambang , Mubarok Ibnu 
Published: June 2019

Tujuan penelitian ini untuk mengetahui pengelolaan dan kepuasan peserta didik dalam pemanfaatan sarana dan prasarana di workshop teknik sepeda motor. Metode penelitian yang digunakan deskriptif dengan pendekatan kuantitatif. Sampel pada penelitian ini adalah kepala bengkel dan peserta didik SMK X Bandung dengan subyek kepala bengkel sebanyak 1 orang dan peserta didik kelas XI sebanyak 42 peserta didik. Teknik pengumpulan data menggunakan mangket, observasi dan dokumentasi. Hasil penelitian menunjukkan bahwa pada area kerja mesin, chasis, kelistrikan otomotif untuk kontak listrik jumlahnya tidak sesuai dengan standar BSNP yang digunakan. Ruang penyimpanan dan instruktur untuk meja kerja, kursi kerja, lemari alat dan bahan, sarana training object sepeda motor, media engine stand, media kelistrikan, peralatan utama bengkel untuk dial test indicator, peralatan pendukung bengkel meja kerja dan trolly tidak sesuai dengan standar BSNP yang digunakan. Kesimpulan penelitian ini adalah pengelolaan sarana dan prasarana workshop sudah sangat baik dan peserta didik dalam pemanfaatan sarana dan prasarana sudah memuaskan, namun masih belum sesuai dengan standar BNSP.
m. Dereceden Cebir Üzerine Bir Not
Authors: AKPINAR Atilla , OZEN ERDOGAN Fatma 
Published: June 2019

Bu makalede, girdileri bir cisminden alınarak oluşturulan nxn boyutlu özel bir matris cebiri üzerinde çalışıldı. Bu cebir üzerinde tanımlanan bir ek (adjoint) alma dönüşümü (bir matrisin eki), bir norm form (bir matrisin determinantı) ve bir iz form (bir matrisin izi) yardımıyla bu cebir ile ilgili bazı cebirsel özellikler elde edildi. Üstelik bu cebirin m. dereceden bir cebir yapısına sahip olduğu gösterildi. Bu örnek sayesinde kübik cebir tanımını m. dereceden cebir tanımına genişletildi.
Yüksek Sıcaklık Hacim Yanma Sentezi ile Üretilen Fe3Al Malzemede Presleme Basıncının ve Isıtma Hızının Gözeneklilik ve Mikro Sertlik Üzerine Etkisinin Araştırılması
Authors: ÖZTÜRK KÖRPE Neşe , YÜCEL Berk Can , KOÇ Nurşen 
Published: June 2019

Kısa işlem süresi, düşük enerji gereksinimleri ve
düşük maliyetli özellikleri nedeniyle yanma sentezi yöntemiyle üretim,
günümüzde oldukça popüler hale gelmiştir. Küçük başlangıç enerjisi ile
oluşturulan ve kendiliğinden ilerleyen ekzotermik kimyasal reaksiyon sonucu
istenilen ürünün elde edildiği bu işlemin dezavantajlarından biri malzemenin
gözenekliliğidir.

Bu çalışmada, Fe3Al tozları farklı
presleme basınçlarında (75 Bar, 150 Bar, 300 Bar) preslenmiş ve iki farklı
yanma sentezi yöntemiyle (yüzey dalgası yayılım modu (PWP), termal patlama modu
(VCS)) ile sentezlenmiştir. Aynı zamanda VCS modu ile üretilen Fe3Al(Fe-at.%
28Al) alaşımında yavaş ısıtma hızıyla da sentezleme yapılmıştır. Gözeneklilik,
mikroyapı ve faz incelemeleri için
X-Işını kırınımı(XRD), elektron mikroskobu(SEM) görüntü analizi ve Vickers
mikrosertlik ölçümü kullanılmıştır. Arşimet yöntemi ile nihai ürün yoğunluk ve
gözeneklilik değerleri bulunmuştur. Sonuç olarak Fe3Al fazının elde
edilebildiği 150 Bar presleme basıncı optimum değer olarak belirlenmiştir.
Toxicity and efficacy of FOLFIRI regimen and aflibercept combination in metastatic colorectal cancer: first results of a Russian multicenter retrospective study
Authors: Fedyanin M. Yu. , Vladimirova L. Yu. , Chubenko V. A. , Zagorskaya L. A. , Belyayeva A. V. , Bolotina L. V. , Moiseyenko F. V. , Fakhrutdinova O. L. , Belukhin S. A. , Zhabina A. S. , Khalikova L. V. , Moiseyenko V. M. , Meshcheryakov A. A. , Artamonova E. V. , Pokatayev I. A. , Khasanova A. I. , Belonogov A. V. , Musayeva Kh. S. , Novikova O. Yu. , Stradayeva I. Yu. , Popova I. L. , Mukhametshina G. Z. , Orlova R. V. , Erdniev S. P. , Ivanova A. K. , Androsova A. V. , Feoktistova P. S. , Kuzmina Ye. S. , Karabina Ye. V. , Nekrasova O. V. , Sherstnev V. M. , Mishchenko A. A. , Mukova L. A. , Kertiev B. Kh. , Kosar G. I. , Osodoyeva S. N. , Katz A. I. , Malina R. R. , Tryakin A. A. , Tyulyandin S. A. 
Published: June 2019

Purpose. To assess the incidence and severity of adverse events; to explore clinical factors associated with grade 3–4 non-hematologic toxicity; to assess the immediate efficacy and progression-free survival during treatment with the FOLFIRI regimen in combination with aflibercept in Russia.Materials and Methods. A retrospective multicenter study has been conducted with data collected from 20 clinics in 15 regions of Russia. There was no statistical hypothesis. Progression-free survival was the main efficacy criterion. The statistical analysis was performed using IBM SPPS Statistics v. 20 software.Results. FOLFIRI and Aflibercept combination was administered to 264 patients. The mean number of treatment cycles was 6 (1 to 29). The toxicity of aflibercept was addressed by dose reduction and dosing delay in 10.1 % and 11.4 % of patients, respectively, and dose reductions and dosing delays in any of FOLIFRI components were reported in 20.1 % of participants. The objective response rate was 20.3 %. The median progression-free survival in patients receiving second-line treatment was 6 months (95 % CI: 5.3–6.6 months). Seventy-two percent of patients experienced any grade of adverse events most of which were limited to grade 1–2 (62.1 %). Non-hematologic toxicity was reported in 64 % of patients (grade 3–4 in 17.9 %). Hematologic events were detected in only 17.9 % of patients. Multifactorial analysis has shown that drug therapy for concomitant diseases (OR 1.98, 95 % CI: 1.04–3.78, p = 0.037) and the number of chemotherapy lines prior to aflibercept (ОR 1.5, 95 % CI: 1.06–2.11, p = 0.02) were independent predictors of grade 3–4 non-hematologic toxicity.Conclusions. Objective response rate, progression-free survival, and frequency of toxicity-related aflibercept discontinuations in the Russian study with patients receiving aflibercept in combination with FOLFIRI regimen as a second-line treatment has shown the results that were comparable with VELOUR study. Comorbidities requiring drug treatment and the number of prior chemotherapy lines appear to be risk factors for grade 3–4 nonhematological toxicity events.
Use of single-photon emission computed tomography combined with computed tomography for breast cancer diagnosis
Authors: Kislichko A. G. , Ramazanova M. S. 
Published: June 2019

Objective. To evaluate the efficacy of single-photon emission computed tomography combined with computed tomography (SPECT-CT) in the diagnosis of breast cancer (BC).Materials and methods. We performed 44 SPECT-CT examinations in 40 women with malignant breast neoplasms.Study Results. The obtained data enabled us to calculate the characteristics of SPECT-CT in the evaluation of the primary tumor. The sensitivity, specificity, and diagnostic accuracy of the method were 88.1 %, 78.3 %, and 88.0 %, respectively. When the method was used to detect nodal and distant metastases, these characteristics were 87.3 %, 76.8 %, 86.9 % and 82.6 %, 73.1 %, 81.4 %, respectively.Conclusion. SPECT-CT is one of the most accurate methods to assess the primary tumor, lymph node involvement and distant metastases in BC.
Güzel Sanatlar Lisesi Öğrencilerinin Yalnızlık Düzeyleri ile Kişilik Özellikleri ve Yeterlik Algıları Arasındaki İlişkilerin İncelenmesi
Authors: ŞAHAN Mehmet , CEYHAN Esra 
Published: June 2019

Ülkemizde
sanat eğitimcisi adaylarını yükseköğretime hazırlayan aynı zamanda sanatçı
adayları yetiştiren en önemli kurumlardan biri güzel sanatlar liseleridir. İlgi
ve yetenekleri doğrultusunda sanat alanı ile ilgili eğitim verilen güzel
sanatlar lisesi öğrencileri, gerek içinde bulundukları gelişim dönemi gerekse
alanlarına özgü yaşantıları nedeniyle yalnızlık duygusunu daha yoğun
deneyimleyen bir grup olarak ön plana çıkmaktadır. Bu çalışmada güzel sanatlar
lisesinde öğrenim gören ergenlerin yalnızlık düzeyleri ile kişilik özellikleri
ve yeterlik algıları arasındaki ilişki incelenmektedir. Çalışma grubu,
Eskişehir Atatürk Güzel Sanatlar Lisesinde öğrenim gören 133’ü kadın ve 91’i
erkek olmak üzere toplam 224 öğrenciden oluşmaktadır. Çalışmada veriler UCLA
Yalnızlık Ölçeği, Ergenler İçin Yeterlik Algısı Ölçeği ve Sıfatlara Dayalı
Kişilik Testi ile toplanmıştır. Veriler korelasyon ve hiyerarşik regresyon
analizi ile incelenmiştir. Bulgular, kişilik özelliklerinden dışadönük ve
duygusal dengesizlik ile sosyal yeterliğin yalnızlığı anlamlı bir biçimde
yordadığını ve değişkenlerin birlikte yalnızlığı %39,8 düzeyinde açıkladığını
göstermektedir. Bu bulgular dikkate alındığında, dışadönüklük ve sosyal
yeterlik özelliklerinin geliştirilmesinin yanı sıra duygusal dengesizliğin
azaltılmasının ergenlerin yalnızlık duygusunun olumsuz etkileri ile daha
işlevsel biçimde baş etmesine yardımcı olabileceği ifade edilebilir.