bluuebunny/crossref_metadata_2025 huggingface dataset:
From random Brownian motion of particles to high automation laboratory: a brief history of correlation time (Preprint)
Authors: Berruti Federico , Di Stasio Enrico , Arcovito Alessandro , Romitelli Federica , Antenucci Mirca , De Cristofaro Raimondo , Urbani ANdrea
Published: May 2019

BACKGROUND

Laboratory automation is the actual frontier for the increase of productivity and reduction of samples turnaround time (TAT), in turn used as a key indicator of laboratory performance. However, due to the statistical distribution of TAT values, classical parameters (mean, standard deviation, percentiles) fail to describe each single sample processing “story”.

OBJECTIVE

The driving idea of the present work is to assimilate the samples flow in an automation laboratory to the movement of molecules in solution by means of Dynamic Light Scattering Correlation Function analysis expansion

METHODS

TAT values from 10000 samples were used to build a correlation function. Through a time course, each sample perfectly correlates with its initial status (no results available) until its specific TAT value is reached and assumes a value of 1; after the TAT is reached (produced results) it no more correlates and its status value becomes 0. The generated correlation function is simply the normalized progressive timing sum of all analyzed samples status conditions at each specific time.

RESULTS

By correlation function analysis, several parameters to describe the general performance of the system as well as each individual sample status are derived and applied to monitor the efficiency of the automation chain in real time mode

CONCLUSIONS

Our original approach to laboratory automation leads to the possibility of determining measurable criteria able to describe the entire system capacity to buffer and reduce problems both on the full performance or on spot samples, consequently developing a new tool to evaluate different or improved performing systems.

CLINICALTRIAL

none
Patient Perspectives on the Usefulness of an Artificial Intelligence–Assisted Symptom Checker: Cross-Sectional Survey Study (Preprint)
Authors: Meyer Ashley N D , Giardina Traber D , Spitzmueller Christiane , Shahid Umber , Scott Taylor M T , Singh Hardeep
Published: May 2019

BACKGROUND

Patients are increasingly seeking Web-based symptom checkers to obtain diagnoses. However, little is known about the characteristics of the patients who use these resources, their rationale for use, and whether they find them accurate and useful.

OBJECTIVE

The study aimed to examine patients’ experiences using an artificial intelligence (AI)–assisted online symptom checker.

METHODS

An online survey was administered between March 2, 2018, through March 15, 2018, to US users of the Isabel Symptom Checker within 6 months of their use. User characteristics, experiences of symptom checker use, experiences discussing results with physicians, and prior personal history of experiencing a diagnostic error were collected.

RESULTS

A total of 329 usable responses was obtained. The mean respondent age was 48.0 (SD 16.7) years; most were women (230/304, 75.7%) and white (271/304, 89.1%). Patients most commonly used the symptom checker to better understand the causes of their symptoms (232/304, 76.3%), followed by for deciding whether to seek care (101/304, 33.2%) or where (eg, primary or urgent care: 63/304, 20.7%), obtaining medical advice without going to a doctor (48/304, 15.8%), and understanding their diagnoses better (39/304, 12.8%). Most patients reported receiving useful information for their health problems (274/304, 90.1%), with half reporting positive health effects (154/302, 51.0%). Most patients perceived it to be useful as a diagnostic tool (253/301, 84.1%), as a tool providing insights leading them closer to correct diagnoses (231/303, 76.2%), and reported they would use it again (278/304, 91.4%). Patients who discussed findings with their physicians (103/213, 48.4%) more often felt physicians were interested (42/103, 40.8%) than not interested in learning about the tool’s results (24/103, 23.3%) and more often felt physicians were open (62/103, 60.2%) than not open (21/103, 20.4%) to discussing the results. Compared with patients who had not previously experienced diagnostic errors (missed or delayed diagnoses: 123/304, 40.5%), patients who had previously experienced diagnostic errors (181/304, 59.5%) were more likely to use the symptom checker to determine where they should seek care (15/123, 12.2% vs 48/181, 26.5%; P=.002), but they less often felt that physicians were interested in discussing the tool’s results (20/34, 59% vs 22/69, 32%; P=.04).

CONCLUSIONS

Despite ongoing concerns about symptom checker accuracy, a large patient-user group perceived an AI-assisted symptom checker as useful for diagnosis. Formal validation studies evaluating symptom checker accuracy and effectiveness in real-world practice could provide additional useful information about their benefit.
Early Word Productions in 8 to 12 Month Old Typically Developing Malayalam Learning Children: An Exploratory Study
Authors: Roy Dr. Reeny , N Dr. Sreedevi.
Published: May 2019

Infants start to vocalize recognizable words at an early age. Early linguistic interactions with the parents and caregivers is certainly important to establish these early linguistic abilities. Some word like forms do appear to have meaningful correlation with the infants primary language. With this reference, it is essential to investigate the early word productions during the babbling phase to their first word productions. The present paper highlights on the occurrence of early word productions in 8 to 12month old infants in Malayalam language. The participants consisted of 20 typically developing native speaking Malayalam infants. Vihman and McCune’s (1994) criteria was utilized to determine the early words after the audio recordings were carried out and transcribed. The transcribed data was analyzed in IPA to acquire the frequency of the early word productions.
The Argentinian wheat milling industry - characterizing the operations of its two main company types
Authors: Zschocke Julian C.F.M.
Published: May 2019

This paper characterizes the operations of the two main types of Argentinian wheat milling companies using Transaction Cost Economics. Small- and medium-sized mills operate efficiently within the macroeconomic context of Argentina by using SPOT market transactions; they exhibit an idle capacity that impedes the full realization of scale effects by keeping its overhead costs high, squeezing them between grain producers and bakeries. The findings suggest that they could produce a higher quality flour destined for supermarkets or exportation by improving their scale effects and access to financing via forward contracts, forming cooperatives and/or becoming part of a Sociedad de Garantía Recíproca (SGR; Mutual Guarantee Society). Molino Cañuelas – the case study illustrating the food companies – benefits not only from using plural forms in its sourcing processes and large-scale effects, but also from investments into producer relationships, processes, and brands, that allow it to achieve higher margins.
Angiogenic Factor AGGF1-Primed Endothelial Progenitor Cells Repair Vascular Defect in Diabetic Mice
Authors: Yao Yufeng , Li Yong , Song Qixue , Hu Changqin , Xie Wen , Xu Chengqi , Chen Qiuyun , Wang Qing K.
Published: May 2019

Hyperglycemia-triggered vascular abnormalities are the most serious complications of diabetes mellitus (DM). The major cause of vascular dysfunction in DM is endothelial injury and dysfunction associated with the reduced number and dysfunction of endothelial progenitor cells (EPCs). A major challenge is to identify key regulators of EPCs to restore DM-associated vascular dysfunction. We show that EPCs from heterozygous knockout Aggf1+/− mice presented with impairment of proliferation, migration, angiogenesis, and transendothelial migration as in hyperglycemic mice fed a high-fat diet (HFD) or db/db mice. The number of EPCs from Aggf1+/− mice was significantly reduced. Ex vivo, AGGF1 protein can fully reverse all damaging effects of hyperglycemia on EPCs. In vivo, transplantation of AGGF1-primed EPCs successfully restores blood flow and blocks tissue necrosis and ambulatory impairment in HFD-induced hyperglycemic mice or db/db mice with diabetic hindlimb ischemia. Mechanistically, AGGF1 activates AKT, reduces nuclear localization of Fyn, which increases the nuclear level of Nrf2 and expression of antioxidative genes, and inhibits reactive oxygen species generation. These results suggest that Aggf1 is required for essential function of EPCs, AGGF1 fully reverses the damaging effects of hyperglycemia on EPCs, and AGGF1 priming of EPCs is a novel treatment modality for vascular complications in DM.
Psychosocial Interventions for Emergent Adults With Type 1 Diabetes: Near-Empty Systematic Review and Exploratory Meta-Analysis
Authors: Jewell Rachel R. , Gorey Kevin M.
Published: May 2019

Risk for developing mental health concerns is increased for people with diabetes. Coupled with stressors related to the transition from adolescence to adulthood, emergent adults may be in greater need of psychosocial interventions to help them cope. This review summarizes the literature on interventions used with people with diabetes aged 15–30 years on psychosocial and biological (A1C) outcomes. Core databases were searched for both published and grey research. Studies completed between January 1985 and October 2018 using any psychosocial intervention and meeting age and diabetes type requirements were selected if they included a control or comparison group and findings reported in such a way that effect size was calculable. Two authors independently extracted relevant data using standard data extraction templates. Six studies with 450 participants met the broad inclusion criteria. Sample-weighted pooling of 12 outcomes, six each on glycemic control and psychosocial status, suggested the preventive potential (d = 0.31, 95% CI 0.17–0.45) and homogeneity (χ2 [11] = 11.15, P = 0.43) of studied interventions. This preliminary meta-analysis provides some suggestion that psychosocial interventions, including telephone-based case management, individualized treatment modules, and small-group counseling interventions, may diminish burden, depression, and anxiety and enhance glycemic control among emerging adults with type 1 diabetes as they transition from adolescence to adulthood.
Living With Hypoglycemia: An Exploration of Patients’ Emotions: Qualitative Findings From the InHypo-DM Study, Canada
Authors: Brown Judith Belle , Reichert Sonja M. , Valliere Yashoda , Webster-Bogaert Susan , Ratzki-Leewing Alexandria , Ryan Bridget L. , Harris Stewart B.
Published: May 2019

Hypoglycemia is one of the most common adverse events for people living with type 1 or type 2 diabetes. To gain a deeper understanding of patients’ emotions regarding hypoglycemia, we conducted a descriptive qualitative study. Purposive sampling was used to recruit participants for a 30- to 45-minute semi-structured interview. The 16 participants included both women and men with either type 1 or type 2 diabetes, with a mean age of 53 years and mean time since diagnosis of 21 years. All participants had experienced more than one hypoglycemia event in the past year, ranging from nonsevere to severe. Data collection and analysis occurred in an iterative manner. Individual and team analyses of interviews were conducted to identify overarching themes and sub-themes. Thematic analysis revealed the unique interconnection among the emotions experienced by participants, including fear, anxiety, frustration, confidence, and hope. Time, experience, and reflection helped to build participants’ confidence in their ability to manage a hypoglycemia event. Patients’ emotions regarding hypoglycemia provide valuable insights into life with diabetes. Although hypoglycemia continues to evoke feelings of fear and anxiety, the role of hope may temper these emotions. Understanding the complex interplay of emotions concerning hypoglycemia can guide health care providers in improving clinical practice and promoting patient-centered interventions. Ultimately, health care providers can build patients’ hypoglycemia-related confidence by using a strengths-based approach.
Prostate cancer risk by occupation in the Occupational Disease Surveillance System (ODSS) in Ontario, Canada
Authors: Sritharan Jeavana , MacLeod Jill S. , McLeod Christopher B. , Peter Alice , Demers Paul A.
Published: May 2019

Introduction

Previous Canadian epidemiologic studies have identified associations between occupations and prostate cancer risk, though evidence is limited. However, there are no well-established preventable risk factors for prostate cancer, which warrants the need for further investigation into occupational factors to strengthen existing evidence. This study uses occupation and prostate cancer information from a large surveillance cohort in Ontario that linked workers’ compensation claim data to administrative health databases.

Methods

Occupations were examined using the Occupational Disease Surveillance System (ODSS). ODSS included 1 231 177 male workers for the 1983 to 2015 period, whose records were linked to the Ontario Cancer Registry (OCR) in order to identify and follow up on prostate cancer diagnoses. Cox proportional hazard models were used to calculate age-adjusted hazard ratios and 95% CI to estimate the risk of prostate cancer by occupation group.

Results

A total of 34 997 prostate cancer cases were diagnosed among workers in ODSS. Overall, elevated prostate cancer risk was observed for men employed in man¬agement/administration (HR 2.17, 95% CI = 1.98–2.38), teaching (HR 1.99, 95% CI = 1.79–2.21), transportation (HR 1.20, 95% CI = 1.16–1.24), construction (HR 1.09, 95% CI = 1.06–1.12), firefighting (HR 1.62, 95% CI = 1.47–1.78), and police work (HR 1.20, 95% CI = 1.10–1.32). Inconsistent findings were observed for clerical and farm¬ing occupations.

Conclusion

Associations observed in white collar, construction, transportation, and protective services occupations were consistent with previous Canadian studies. Findings emphasize the need to assess job-specific exposures, sedentary behaviour, psy¬chological stress, and shift work. Understanding specific occupational risk factors can lead to better understanding of prostate cancer etiology and improve prevention strategies.
At-a-glance – Conceptualizing a framework for the surveillance of physical activity, sedentary behaviour and sleep in Canada
Authors: Butler Gregory P. , Roberts Karen C. , Kropac Erin , Rao Deepa P. , Branchard Brenda , Prince Stephanie A. , Thompson Wendy , Jayaraman Gayatri
Published: May 2019

The Public Health Agency of Canada (PHAC) has modernized its approach to physical activity surveillance by broadening its scope to include sedentary behaviour and sleep. The first step was to develop a conceptual framework which covers the full spectrum of physical movement from moderate-to-vigorous intensity physical activity (MVPA) and light intensity physical activity (LPA) to sedentary behaviour and sleep. The framework accounts for the environments in which these behaviours take place (home, work/school, transportation, and community), and applies a socioecological approach to incorporate individual factors and broader built, social, and societal environmental indicators. A visual model of the conceptual framework was created to aid dissemination.
Okul Öncesi Eğitim Etkinlik Planlarının Etkinlik Çeşidi ve Bireysel-Küçük/ Büyük Grup Olarak Planlanması Açısından İncelenmesi
Authors: BÜYÜKTAŞKAPU SOYDAN Sema
Published: May 2019

Bu araştırmanın amacı, okul öncesi öğretmenlerinin etkinlik planlarında yer verdikleri etkinlik çeşitlerinin ve etkinlikleri bireysel- küçük/büyük grup olarak planlanma durumlarının belirlenmesidir. Nitel araştırma yöntemlerinden, temel nitel araştırma yönteminin kullanıldığı araştırmanın örneklemi, amaçlı örnekleme yöntemlerinden ölçüt örnekleme yöntemi ile belirlenmiştir. Araştırmanın örneklemini, 2013 Milli Eğitim Bakanlığı Okul Öncesi Eğitim Programına göre okul öncesi öğretmenleri tarafından bizzat hazırlanmış altı adet okul öncesi eğitim programı etkinlik planı oluşturmaktadır. Veri toplama yöntemi olarak döküman incelemesi kullanılmış, elde edilen veriler içerik analizi tekniği kullanılarak analiz edilmiştir. İçerik analizi sonucunda planların niceliksel özelliklerinin tablolaştırılmasında yüzde ve frekans değerleri dikkate alınmıştır. Araştırma sonuçları öğretmenlerin hazırladığı planlarda sanat etkinliği hariç diğer tüm etkinliklerin en çok büyük grup ile yapıldığını ortaya koymaktadır. Öğretmenlerin hazırladığı planlarda Okuma Yazmaya Hazırlık, Matematik, Fen, Oyun ve Hareket, Türkçe, Drama ve Müzik etkinliklerinde ikinci sırada bireysel etkinliklere, üçüncü sırada ise küçük grup etkinliklerine yer verdikleri belirlenmiştir. Sanat etkinliklerinin ise, en çok bireysel etkinlik, ikinci sırada  büyük grup etkinliği ve küçük grup etkinliği şeklinde planlandığı belirlenmiştir. Ayrıca etkinliklere yer verme sıklıklarının Sanat, Oyun, Türkçe, Müzik, Okuma Yazmaya Hazırlık, Matematik Fen, Drama şeklinde sıralandığı görülmektedir. Planların yaklaşık %21’ inin Sanat, Oyun, Türkçe etkinliklerinden oluştuğu, yaklaşık % 9’unun Müzik, Okuma Yazmaya Hazırlık, Matematik ve yaklaşık % 8’sinin fen, drama etkinliklerinden oluştuğu tespit edilmiştir.
Normal Gelişim Gösteren ve Üstün Yetenekli Ortaokul Öğrencilerinin Fen Bilimleri Özyeterlikleri ve Özyeterliklerine Cinsiyetin Etkisi
Authors: YILDIRIM Kübra Şengül , SARAÇOĞLU Sibel
Published: May 2019

Araştırmanın
amacı; normal
gelişim gösteren ve üstün yeenekli ortaokul öğrencilerinin fen bilimleri özyeterliklerini ve özyeterliklerine cinsiyetin
etkisini incelemektir. tespit etmektir.  Araştırma 2016-2017 eğitim öğretim yılında Kayseri ili Melikgazi
ilçesinde yapılmıştır.  Çalışma grubu ortaokul
çağındaki üstün yetenekli 191 ve normal gelişim gösteren 443 olmak üzere toplam
634 öğrenciden oluşmaktadır. Araştırmada nicel araştırma yöntemlerinden tarama
deseni kullanılmıştır. Veri toplama aracı olarak “Fen Bilimleri Özyeterlik
Ölçeği” kullanılmıştır. Araştırmada kullanılan ölçeğin güvenirlik katsayısı 0.917
olarak bulunmuştur.  Verilerin analizi için bağımsız örneklem
t-testi kullanılmıştır. Araştırma sonuçları
ortaokul öğrencileri ile aynı düzeydeki üstün yetenekli öğrencilerin fen
bilimleri özyeterlikleri arasında üstün yetenekli öğrenciler lehine anlamlı bir
farklılık olduğunu göstermektedir. Çalışmada iki gruptaki öğrencilerin fen
özyeterlikleri arasında ustalık, duyuşsal özellikler ve teşvik faktörleri açısından
anlamlı bir farklılık olup olmadığını tespit etmek amacıyla, bu faktörler tek
tek ele alınarak incelenmiştir. Sonuçta; uygulanan ölçekteki ustalık, duyuşsal
özellikler ve teşvik faktörleri açısından üstün yetenekli öğrenciler lehine
anlamlı farklılık olduğu görülmüştür. Her iki gruptaki ortaokul öğrencilerinin özyeterlik puanları cinsiyet
değişkeni açısından incelendiğinde farklı cinsiyetteki öğrencilerin özyeterlik
düzeyleri arasında anlamlı bir farklılık olmadığı görülmektedir.
Öğrenci Hemşirelerin Öğrenim Gördükleri Fakültedeki Örtük Programa İlişkin Görüşlerinin İncelenmesi
Authors: ORGUN Fatma , ÖZKÜTÜK Nilay , AKÇAKOCA Berna
Published: May 2019

Bir hemşirelik fakültesinde öğrenim gören öğrencilerin fakültelerindeki
örtük program ile ilgili görüşlerini incelenmek, farkındalık yaratmak amacı ile
yapılan tanımlatıcı tipteki çalışma 304 öğrenci ile yürütülmüştür. Araştırma
verileri sosyo-demografik veri formu ve “Örtük Program Ölçeği” ile
toplanmıştır. Verilerin çözümlenmesinde, SPSS 20.0 programı kullanılarak, yüzde
dağılımları, t-testi, varyans ve korelasyon analizleri yapılmıştır. Araştırma
sonuçlarına göre, Cronbach's α katsayısı ölçeğin toplamında .90 olarak
bulunmuştur. Çalışmanın yapıldığı fakültede örtük program algısının orta
düzeyde olduğu saptanmış ve eğitim yapılan kurumu tanıma düzeyi, öğrenci algısı
ve olgunluğu arttıkça örtük program uygulandığı algısı artmıştır.
Öğretmen Adaylarının Yabancı Dil Kaygısı
Authors: TÜM Danyal Öztaş
Published: May 2019

Yabancı dil kaygısı ile yabancı
dil öğrenimi arasındaki negatif ilişki son kırk yılda iyice yerleşmiştir. Yine
de, öğretmen dil kaygısı göreceli olarak incelenmemiş bir fenomen olarak
kalmaya devam etmektedir. Bu çalışmanın amacı, anadili İngilizce olmayan
yabancı öğretmen adaylarının yabancı dil kaygısı kaynaklarını ve etkilerini
incelemektir. Bulgular, katılımcıların olumsuz değerlendirilme korkusu, hatalara
ilişkin endişeler ve olumsuz benlik algıları nedeniyle endişe duyduklarını
göstermektedir. Dil kaygısının, yabancı dil öğretimi üzerinde daha önce detaylı
olarak araştırılmamış birtakım olumsuz etkileri olduğu da görülmektedir.
Buckling Analysis of Steel Fiber Column with Different Cross-Section and Boundary Conditions Using Euler-Bernoulli Beam Theory
Authors: ÖZDEMİR Mahmut Tunahan , KOBYA Veysel , YAYLI Mustafa Özgür , AGHABAGLOU Ali Mardani
Published: May 2019

Nowadays, with the help of developing technology, engineering problems which are difficult to solve have become easily solved in a short time by means of computer software. Certain mathematical algorithms are used in these analysis methods. The mathematical and numerical solution methods created provide a significant solution facility for engineering. In this paper, the buckling analysis of the Euler column model, with elastic boundaries and containing steel fibers, under pressure effect is performed. In the column model, three different sections, which have been produced from four different concrete series, including three different types of fiber reinforced specimens and one non-fibrous control sample(C) with 0.6% by volume, were analyzed by using a software. In the study, the analysis of the critical buckling values depend on length, elastic modulus and cross-sectional type of the column model has been performed. The results are shown in graphs and tables. With the results of the analysis, the effect of slenderness and steel fiber concrete on the critical load in pressure columns have been investigated.
Peningkatan Kemampuan Menyimpulkan Teks Hasil Observasi Menggunakan Model Pembelajaran MEA (Means-Ends Analysis) Siswa Kelas VII-1 SMP Bina Agung Tanjung Gusta Tahun Pelajaran 2018/2019
Authors: Akbar Syahrizal , Ulfandari Anisa
Published: May 2019

Penelitian ini bertujuan untuk mengetahui peningkatan hasil Dalam Menyimpulkan Teks Hasil Observasi Dengan Menggunakan Model Pembelajaran Mea (Means-Ends Analysis) Pada Siswa Kelas VII-1 Smp Bina Agung Tanjung Gusta Tahun Pelajaran 2018/2019. Masalah yang mendasar adalah rendahnya kemampuan menyimpulkan siswa. Pendekatan penelitian ini mengunakan kualitatif deskriptif dalam bentuk PTK. Subjek dari penelitian ini adalah siswa dan Guru Bahasa Indonesia siswa kelas VII-1. Teknik pengumpulan data dengan cara tes, wawancara, dan observasi. Prosedur penelitian ini menggunakan design Kemmis Mc Taggart, yaitu perencanaan, pelaksanaan, observasi, dan refleksi. Hasil penelitian ini adalah adanya peningkatan hasil pembelajaran menyimpulkan teks hasil observasi menggunakan model pembelajaran MEA setelah melakukan 2 siklus dengan rincian peningkatan dari 50 % yang tuntas menjadi 85%. Kata kunci: Teks hasil observasi, MEA, PTK
PENINGKATAN KEMAMPUAN MENULIS TEKS BERITA DENGAN MENGGUNAKAN MODEL ARIAS PADA SISWA KELAS VIII SMP N 27 MEDAN
Authors: Hutagalung Trisnawati , Toman Toman , Hanum Inayah
Published: May 2019

Tujuan penelitian ini bertujuan untuk (1) untuk mengetahui kemampuan siswa dalam menulis teks berita siswa kelas VIII SMP Negeri 27 Medan Tahun Pembelajaran 2018/2019 sebelum menggunakan model ARIAS. (2) untuk mengetahui kemampuan siswa dalam menulis teks berita siswa kelas VIII SMP Negeri 27 Medan Tahun Pembelajaran 2018/2019 setelah menggunakan model pembelajaran ARIAS (3) untuk mengetahui apakah ada perubahan siswa sebelum dan sesudah diterapkan model pembelajaran ARIAS dalam meningkatkan keterampilan menulis teks berita siswa Kelas VIII SMP Negeri 27 Medan. Populasi dalam peneltian ini adalah siswa kelas VIII SMP Negeri 27 Medan Tahun Pembelajaran 2018/2019. Sampel dalam penelitian ini berjumlah 35 orang. Data penelitian berupa nilai kemampuan menulis teks berita tanpa menggunakan model pembelajaran ARIAS dan dengan menggunakan model pembelajaran ARIAS. Berdasarkan hasil penelitian, dapat diteliti bahwa hasil tes keterampilan menulis teks berita menggunakan model pembelajaran ARIAS (Assurance, Relevance, Interest, Assessment, Satisfaction) yang dilakukan pada siswa kelas VIII SMP Negeri 27 Medan mengalami peningkatan. Peningkatan kemampuan menulis teks berita tersebut diketahui dari hasil siklus I dan siklus II. Pada siklus II nilai rata-rata hasil tes menulis teks berita sebesar 69 termasuk dalam kategori kurang baik, dan tidak memenuhi ketuntasan. Aspek-aspek menulis teks berita mengalami peningkatan mencapai ketuntasan belajar dan semua siswa juga mencapai ketuntasan belajar. Pada siklus II, nilai rata-rata hasil tes menulis teks berita sebesar 81 termasuk dalam kategori sangat baik.Kata Kunci : Model Pembelajaran, Teks Berita, ARIAS
Improving the Students’ Achievement in Reading Comprehension by Using Inquiry Technique
Authors: Ginting Gigin Sappena , Ginting Siti Aisah
Published: May 2019

This study attemps to imorove the students’ achivement in reading comprehension through inquiry technique. The study was conducted by using classroom action research. The subjects of the research were the 45 students of Grade XI SMA Negeri 1 Bahorok. It was conducted in two Cycles and consisted of six meetings.The instruments for colecting data used Reading Comprehension tests for quantitative data and Diary Notes, Interview Sheet, and Observation Sheet for qualitative data. Based on the Reading Comprehension score, students score in pre test, kept improving in every test. Based on Diary Notes, Observation sheet and Interview Sheet, it was found that the students were actualy involved in reading process. The results of the reasearch showed that Inquiry Technique can improve the students’ achivement in Reading Comprehension. In orientation test the mean of the students’ score was 53, the mean of the students’ score in Cycle I was 62.07, and the mean of the students’ score in Cycle II was 71.6. Based on the Observation Sheet, Diary Notes, and Interview Sheet, it was found that the teaching-learning process run well. The conclusion is that Inquiry Technique improved the students’ reading Coprehension and it is suggested to the English teacher to apply Inquiry Technique in Reading Comprehension. Keywords : Improving, students’ achievement, Inquiry Technique
IMPROVING STUDENTS’ ACHIEVEMENT IN WRITING PROCEDURAL PARAGRAPH THROUGH DEMONSTRATION METHOD
Authors: Komariah Linda
Published: May 2019

This study concerns with improving grade VIII students’ achievement in writing procedural Paragraph through demonstration method. This research was conducted by using classroom action research. The subject of the study was grade VIII students of SMP N 2 Babalan which consisted of 35 students. The instruments for collecting data were primary data (writing test) and secondary data (interview sheet, observation sheet and questionnaire sheet). Based on writing scores, students’ score kept improving in every evaluation. In the test I the mean was 64,91, in the test II the mean was 74,57 . Based on interview, observation, and questionnaire sheet, it was found that teaching-learning process ran well. Students were active, creative to give their idea, enthusiastic, and interested in writing. The finding of the research showed that applying demonstration method significantly improved students’ writing achievement. Keyword: writing achievement, demonstration method, classroom action research.
THE EFFECT OF PROJECT BASED LEARNING (PjBL) ON STUDENTS’ ACHIEVEMENT IN WRITING PROCEDURE TEXT
Authors: Afianti Risa , Sumarsih Sumarsih , Zainuddin Zainuddin
Published: May 2019

This study aims to find out whether students’ achievement trough using Project Based Learning is higher than trough discussion method in writing procedure text. The research was conducted by experimental research used in two groups. They are experimental use Project Based Learning and control use Discussion Method. The subject of this were the students of SMP Negeri 2 Babalan class VII-2 and VII-3 consisted of 30 students for each class. To collecting the data was taken from writing test. After analyzing the data, it was found that the value of t-obs was 4.16 with degree of freedom (df) = 58 at the level of significance p(0.05) = 2,000. It means that t-obs is higher than t-table. It was found that teaching procedure text by using Project Based Learning is higher than discussion method. Project Based Learning has a significant effect on students’ achievement in writing procedure text.   Key words: Project Based Learning, Writing achievement, Procedure Text.
THE ANALYSIS OF ENGLISH TEXTBOOK USED IN THE FIRST GRADE OF SENIOR HIGH SCHOOL BASED ON CURRICULUM 2013
Authors: Nurhikmah Wita , Hartoyo Indra , Siregar Tiarnita Maria Sarjani
Published: May 2019

The objectives of this study were (1) to analyze feasibility of content (2) to analyze feasibility of presentation in the English Textbook “Bahasa Inggris untuk SMA/MA/SMK Kelas X” according to Curriculum 2013. This study used descriptive qualitative. The data collected for this study were from “Bahasa Inggris untuk SMA/MA/SMK Kelas X” published by Yrama Widya with the writer Otong Setiawan Dj. There are 12 chapters within this textbook and the writer determined to study 6 out of 12 chapters as the sample for the whole book. The results of this study were (1) the feasibility of content in English Textbook “Bahasa Inggris untuk SMA/MA/SMK Kelas X” according to Curriculum 2013 with percentage 89.58%. (2) the feasibility of Presentation in English Textbook “Bahasa Inggris untuk SMA/MA/SMK Kelas X” according to Curriculum 2013 with percentage 88.88%. (3) KD and KI in this textbook also according to Curriculum 2013.Therefore, it can be concluded that English Textbook “Bahasa Inggris untuk SMA-MA/SMK Kelas X” published by Yrama Widya, in terms of feasibility of content and feasibility of presentation, was good to be used in the first grade of senior high school using curriculum 2013.Keywords: Textbook, Curriculum 2013, Assessment rubric based on BSNP
TEACHER’S WRITTEN FEEDBACK IN WRITING FOR GRADE 10 STUDENTS OF SENIOR HIGH SCHOOL
Authors: Fitriana Mouna , Pulungan Anni Holila , Hasibuan Juli Rachmadani
Published: May 2019

This study were aimed to find out the types of teachers’ written feedback in writing which given by the teachers for grade 10, to find out the reason why teacher used those types of written feedbacks on students’ writing and also to find out the students’ response to the teacher’s written feedbacks on students’ writing of grade 10 students in SMA YAPIM Taruna Sei Rotan. This research used descriptive qualitative method and the data were collected through documentation and interview. The data collected were analyzed qualitatively. The findings found that there were two types of feedbacks namely, direct written feedback and indirect written feedback. There were 59 direct feedbacks (52%) out of 114 total feedbacks. Meanwhile, indirect feedback with 55 un-coded direct feedbacks (48%) and in this case, teacher did not use coded indirect feedback because the teacher did not understand about the codes. The reason why teacher used those kinds of written feedback on students’ writing was because it could make the students have more vocabularies. In conclusion, teacher’s written feedbacks were important to made students aware of making mistake on their writing and the students knew about their mistake easily and their writing will be better because they learn from the mistakes. In this case, most of the students felt happy when their teacher gave a correction on their writing. The students said that direct feedback was more effective than indirect feedback because they felt confuse about what the correct word is. By using the direct feedback, the students can have more vocabularies on their next writing. The findings suggested that English teachers was expected to provide a clear description of feedback on writing, especially how students perceive and interpret the feedback given.Key words: Feedback, Teacher’s Written Feedback, Students’ Writing
THE COLLOCATION OF ENGLISH TEXTBOOK FOR GRADE X IN SENIOR HIGH SCHOOL
Authors: Hutapea Sylvia Ulitha Prisscilia , Siregar Masitowarni , Dewi Nora Ronita
Published: May 2019

The aims of this study are to find out the types of collocation used in the English textbook for grade X students in senior high school, to find out the most dominant used of collocation, and to describe how the collocations applied in the 3 genre texts contained in the textbook. The data of this study were the collocations used in 3 genre texts, descriptive, recount, and narrative of an English textbook for tenth grade students in senior high school. After analysing the data, the researcher found 6 types of collocations used in the 3 genre text. The result showed that the textbook use 6 types of collocations (adjective + noun, verb + noun, noun + noun, verb + preposition, verb + adverb, adverb + adjective), and the most dominant collocation used was the adjective + noun type of collocation. The use of collocation in the narrative text was the biggest percentage of (38%), followed by the recount text of (35%) and the last was the descriptive text of (27%).Keywords: Collocation, Types of collocations, Genre Text, English Textbook.
VERBAL INTERACTION IN ENGLISH CLASSROOM USING FLANDERS INTERACTION ANALYSIS CATEGORIES SYSTEM (FIACS)
Authors: Mardiana Fitri , Zainuddin Zainuddin , Gultom Johannes Jefria
Published: May 2019

The thesis deals with the dominant category used by teacher and the students during English classroom interaction, and the percentage of teacher’s talk and students’ talk during English classroom interaction using Flanders Interaction Analysis Categories System (FIACS). Moreover, this study used descriptive qualitative design .The data of this study were utterances between English teacher and students during English classroom in XI-2 IPA of SMA Negeri 11 Medan.The instruments for data collection were observation tally sheet and video recording. The result showed all of the categories used in the teaching and learning process. It found from the percentage of all categories , the dominant category used by the teacher was Giving Direction (40.41% ). In the other hand the dominant category used by students was Student Talk-Response (57.60%). In addition, the percentage of Teacher Talk was 59.76%, and the percentage of Student Talk  was 36.72% during classroom interaction in English lessons .It showed, the teacher more active and dominant talking than the students during verbal classroom interaction.Key words: Verbal Classroom Interaction, Teacher Talk, Student Talk, Flanders Interaction Analysis Categories System
DEVELOPING ENGLISH WRITING MATERIALS OF DESCRIPTIVETEXT FOR TENTH GRADE STUDENT BASED ON PROJECT BASED LEARNING AT SMA SWASTA MARISI MEDAN
Authors: Sundari Winda , Husein Rahmad , Rika Rika
Published: May 2019

This research aimed to find out the target and learning needs of Grade X SMA SWASTA MARISI MEDAN. Moreover, it had a goal to develop English materials for learning writing skills. This is a research and development (R&D) study. The subjects of this research were 25 students of Grade X SMA SWASTA MARISI MEDAN. The need analysis data were collected by using questionnaires and an interview. Then, the results of questionnaires were calculated through percentage. Thus, the highest percentage was considered as the needs of students. Meanwhile, the results of expert judgment were analyzed in the form of descriptive statistics. Three units of materials were developed in this research. Each unit consists of introduction, main lesson and reinforcement. These materials used Project-Based  Learning as the approach in learning writing skill. The units covered some tasks as identify the generic structure, write a short paragraph and complete the sentences. Mostly, the themes used represented students’ knowledge about the popular places and person around them. According to the results of the expert judgment, the materials were very relevant to be used for Grade X SMA SWASTA MARISI MEDAN.    Keywords: learning writing, writing, descriptive text
IDENTIFIKASI TINGKAT KETERAMPILAN SEPAK BOLA SISWA PUTRA KELAS V SDN MONTA KECAMATAN MONTA KABUPATEN BIMA TAHUN AJARAN 2018-2019
Authors: Kuswoyo Dilli Dwi
Published: May 2019

Identifikasi tingkat keterampilan sepak bola siswa Putra kelas V SDN Monta Kecamatan Monta Kabupaten Bima tahun ajaran 2018-2019. Adapun kendala dan kekurangan terhadap keterampilan dari siswa laki-laki dalam bermain bola yaitu: Kurang memahami cara lemparan kedalam, Passing dan mengumpan pada teman kurang akurat, dan Kerja sama tim belum terlalu di kuasai siswa  pada keterampilan dasar yang baik dalam bermain sepak bola. Penelitian ini bertujuan untuk mengetahui tingkat keterampilan dasar bermain sepak bola siswa putra kelas V SDN Monta Kabupaten Bima.Peneletian ini merupakan penelitian kuantitatif yang menggunakan metode survei dan teknik pengumpulan datanya menggunakan teknik tes keterampilan. Sumber data dalam penelitian  ini adalah seluruh siswa putra kelas VI SDN Monta tahun ajaran 2018/2019 yang berjumlah 24 siswa. Teknik analisa data ini menggunakan teknik analisa deskriptif dengan metode survei dengan teknik tes dan pengukuran.Berdasarkan hasil penelitian dan pembahasan dapat disimpulkan bahwa tingkat keterampilan dasar bermain sepak bola siswa putra kelas V SDN Monta tidak ada yang berkategori baik sekali dan baik atau 0%, 55,55% berkategori sedang, 38,89% berkategori kurang, dan 5,56% berkategori kurang sekali itu di karenakan kualitas yang di miliki oleh siswa kelas V SDN Monta hanyalah sedikit memahami tekhnik dasar dari permainan sepak bola ini sehingga hasil yang di tempuh hanyalah setengah saja.
REGRESI LINIER BERGANDA DAN SPATIAL DURBIN MODEL UNTUK MENGIDENTIFIKASI FAKTOR-FAKTOR YANG MEMPENGARUHI GIZI BURUK BALITA DI KOTA MEDAN
Authors: Panjaitan Ade Maulina , . Susiana .
Published: May 2019

ABSTRAKKasus gizi buruk di kota Medan terus mengalami peningkatan dibandingkan dengan tahun-tahun sebelumnya. Pada tahun 2015, Kota Medan berada pada peringkat ke-2 kasus gizi buruk balita terbanyak di Sumatera Utara. Penelitian ini bertujuan untuk mengidentifikasi faktor-faktor yang mempengaruhi gizi buruk balita di kota Medan dan menentukan model terbaik yang dapat menggambarkan gizi buruk balita di kota Medan. Analisis yang digunakan adalah regresi linier berganda dengan Ordinary Least Square (OLS) dan Spatial Durbin Model (SDM). Berdasarkan analisis Moran’s I, diperoleh adanya dependensi spasial pada variabel angka gizi buruk balita di kota Medan serta beberapa faktor yang mempengaruhinya. Dengan demikian perlu dilakukan analisis spasial model SDM. Dari hasil penelitian, diperoleh model SDM menghasilkan R-square sebesar 0.703 dan AIC sebesar 117.2534. variabel yang secara signifikan mempengaruhi gizi buruk balita di kota Medan dengan model SDM adalah banyaknya balita yang mendapat imunisasi lengkap  dan banyaknya rumah tangga miskin  Kata kunci : gizi buruk, dependensi spasial, Spatial Durbin Model, Ordinary Least Square ABSTRACTCases of malnutrition in the city of Medan continues to increase compared with previous years. In 2015, the city of Medan is ranked 2nd malnutrition of children under five in North Sumatra. This study aims to identify factors that affect infant malnutrition in the city of Medan and determine the best model to describe malnourished children under five in the city of Medan. The analysis used is multiple linear regression with ordinary least squares (OLS) and Spatial Durbin Model (SDM). Based on the analysis of Moran's I, obtained their spatial dependencies in the variable infant malnutrition rate in the city of Medan as well as some of the factors that influence it. Thus the need to analyze the spatial model of HR. From the research results, obtained SDM models produce R-square of 0703 and AIC at 117.2534. variables that significantly affect malnourished children under five in the city of Medan with human models is the number of infants are fully immunized  and the number of poor households . Keywords: malnutrition, spatial dependencies, Spatial Durbin Model, Ordinary Least Square
BARISAN SISI ALAS PIRAMIDA HEPTAGONAL
Authors: . Dessy Andriani , . Mashadi . , . Sri Gemawati
Published: May 2019

ABSTRAKBarisan sisi alas merupakan barisan yang diperoleh berdasarkan susunan jumlahbilangan bulat pada salah satu sisi alas bangun ruang piramida atau limas.Dalam tulisan ini akan dibahas barisan sisi alas pada piramida heptagonaldengan membuat sketsa tiga dimensi. Sehingga diperoleh hasil tujuh barisanbilangan sisi alas piramida heptagonal. Jumlah barisan sisi alas pada piramidaheptagonal sama dengan jumlah sisi pada bidang alas piramida heptagonal.Kata kunci: barisan bilangan, barisan sisi alas , barisan sisi alas piramidaheptagonal,
PENGEMBANGAN VARIASI LATIHAN SMASH BOLA VOLI
Authors: Pranopik Muhammad Riza
Published: May 2019

Penelitian pengembangan ini bertujuan untuk mengembangkan hasil teknik smash dalam permainan bola voli. Metode penelitian dan pengembangan research and development (R&D) ini disertai dengan pendekatan kualitatif. Subyek dalam penelitian pengembangan ini adalah atlet bola voli yang telah menguasai teknik dasar smash.  Instrumen yang digunakan dalam penelitian dan pengembangan ini adalah a. Telaah para pakar/ ahli. b. Uji coba kelompok kecil. c. Uji coba lapangan.          Berdasarkan  hasil pengembangan dapat disimpulkan bahwa: Diperlukan teknik smash yang dikembangkan agar dapat meningkatkan kemampuan teknik smash atlet. Dengan variasi latihan smash  yang dikembangkan atlet yang berlatih lebih efektif dan lebih efesien. Dengan variasi latihan smash yang dikembangkan atlet lebih termotivasi dalam suasana kompetitif. Dengan pengembangan variasi latihan smash ini atlet lebih termotivasi untuk mendapatkan teknik-teknik baru khususnya dalam smash. dengan adanya pengembangan variasi latihan smash ini diharapkan dapat mengembangkan variasi-variasi smash dalam berlatih atau bertanding. Dengan hasil penelitian ini diharapkan atlet harus lebih kreatif dan inovatif dalam memainkan variasi smash.
PERBEDAAN PENGARUH LATIHAN MENGHITUNG JARI PELATIH DENGAN LATIHAN EKOR KELEDAI TERHADAP PENINGKATAN KEMAMPUAN MENGGIRING BOLA PADA USIA 12-14 DI SSB OP. LADON 89 GRIYA MARTUBUNG
Authors: Siregar Yan Indra , Mardianto Paulus
Published: May 2019

Banyak metode latihan yang dapat digunakan untuk meningkatkan kemampuan menggiring bola. Latihan yang dapat dipergunakan untuk meningkatkan kemampuan menggiring bola adalah latihan menghitung jari pelatih dan latihan ekor keledai. Tujuan penelitan adalah pertama mengetahui perbedaan pengaruh latihan menghitung jari pelatih dengan latihan ekor keledai, kedua mengetahui pengaruh latihan ekor keledai terhadap peningkatan kemampuan menggiring bola dan ketiga mengetahui manakah yang lebih besar pengaruhnya  antara latihan menghitung jari pelatih dan ekor keledai terhadap peningkatan kemampuan menggiring bola pada pemain usia 12-14 tahun  SSB Op. Ladon 89 Griya Martubung. Penelitian ini terdiri dari dua variabel bebas dan satu variabel terikat, sebagai variabel bebas adalah latihan menghitung jari pelatih dan latihan ekor keledai sedangkan variabel terikatnya adalah peningkatan kemampuan menggiring bola. Lokasi penelitian ini dilaksanakan di lapangan sepak bola SSB Op.Ladon 89 jalan Jala Raya Griya Martubung Kec. Medan Labuhan. Populasi dalam penelitian ini adalah 40 orang sedangkan sampel yang digunakan dalam penelitian ini berjumlah 20 orang. Untuk mendapatkan sampel yang mewakili populasi dipergunakan teknik purposive sample (sampel bersyarat). Penulis menggunakan metode yang dianggap sesuai dengan permasalahan yang hendak diteliti yaitu mengggunakan experimen dengan teknik pengumpulan data menggunakan test dan pengukuran. Dari hasil pengujian hipotesis pertama “Terdapat Pengaruh yang signifikan dari latihan menghitung jari pelatih dengan bola terhadap peningkatan kemampuan menggiring bola pada usia 12-14 tahun  di SSB Op.Ladon 89 Griya Martubung  ”, ttabel dengan dk n-1 = 9, pada taraf nyata α = 0.05 adalah 1.83 dan thitung = 6.25. Dengan demikian th > tt (6.25 > 1.83). Dari hasil pengujian hipotesis kedua “Terdapat Pengaruh yang signifikan dari latihan Ekor Keledai dengan bola terhadap peningkatan kemampuan menggiring bola pada usia 12-14 tahun  di SSB Op.Ladon 89 Griya Martubung  ”,  diperoleh thitung >ttabel, maka Ho ditolak dan Ha diterima. ”, ttabel dengan dk n-1 = 9, pada taraf nyata α = 0.05 adalah thitung 10.11 dan ttabel 1.83. Dengan demikian th > tt (10.11 > 1.83). Berdasarkan hasil pengujian hipotesis ketiga terdapat perbedaan pengaruh  antara latihan Menghitung Jari Pelatih dengan bola dan latihan Ekor Keledai dengan bola.Hal ini dapat dilihat dari nilai thitung 2.63 dan ttabel 1.73 yang berarti thitung > ttabel  maka Ha diterima Ho ditolak. Dengan demikian dapat disimpulkan  bahwa latihan menghitung jari pelatih lebih besar pengaruhnya dari latihan ekor keledai dengan bola terhadap peningkatan kemampuan menggiring bola pada pemain usia 12-14 tahun  di SSB Op.Ladon 89 Griya Martubung. Kata Kunci :  Metode Latihan, Menggiring, Sepakbola
PENGEMBANGAN INSTRUMEN TES DRIBBLING PADA OLAHRAGA FUTSAL
Authors: Dewi Rahma , Pakpahan Muhammad Taqwa
Published: May 2019

Penelitian pengembangan ini bertujuan untuk menghasilkan instrumen tes dribbling pada olahraga futsal. Metode penelitian dan pengembangan (Research and Development) ini disertai dengan pendekatan melalui observasi dan wawancara. Subyek dalam penelitian pengembangan ini adalah atlet futsal SMA MULIA, SMK Tritech, SMA Negeri 2 dan SMA Negeri 13 Medan. Instrumen yang digunakan dalam penelitian dan pengembangan ini adalah validitas yang menggunakan validitas ahli dan reliabilitas tes yang menggunakan test re-test dan Uji coba kelompok kecil dan Besar sebagai dasar untuk layak atau tidaknya instrumen yang akan digunakan dalam suatu penelitian. Berdasarkan hasil penelitian dan pengembangan ini dapat disimpulkan bahwa Pengembangan Instrumen tes dribbling pada olahraga futsal sangat dibutuhkan untuk mengetahui kemampuan dribbling pemain futsal, Pengembangan Instrumen tes dribbling pada olahraga futsal yang diciptakan dapat mempermudah pelatih futsal untuk mengetahui kemampuan dribbling pemainnya, dan Pengembangan instrumen tes dribbling pada olahraga futsal sangat dibutuhkan sebagai acuan pelatih sebagai evaluasi dari latihan dribbling pemainnya.
PENGARUH LATIHAN SPRINT DAN BOX SKIP TERHADAP KEMAMPUAN LOMPAT JAUH PADA PUSAT PELATIHAN ATLETIK JUNIOR MUARO JAMBI
Authors: Palmizal Palmizal
Published: May 2019

Berdasarkan pengamatan penulis di pusat pelatihan atletik junior Muaro Jambi, saat materi lompat jauh  atlet melakukan lompatan masih kurangnya kekuatan otot tungkai dan kecepatan sprint. Atlet yang melakukan lompatan kurang mampu untuk mencapai hasil yang maksimal. Tujuan penelitian ini adalah untuk melihat pengaruh latihan Sprint dan Box Skip terhadap kemampuan lompat jauh pusat pelatihan atletik junior Muaro Jambi. Penelitian dilakukan 3 kali seminggu dengan frekuensi latihan 16 kali pertemuan. Penelitian ini dilakukan di lapangan lompat jauh pusat pelatihan atletik junior Muaro Jambi. Metode yang digunakan pada penelitian ini adalah metode eksperimen yang menggunakan uji hipotesis yaitu Uji-T. dengan jumlah sampel 27 siswa dengan teknik pengambilan sampel yaitu dengan cara total sampling. Hasil Penelitian Berdasarkan uji hipotesis yang dilakukan terhadap tes awal dan tes akhir kemampuan lompat jauh dalam analisis data yang mengunakan uji-T di mana tes awal diperoleh rata-rata 3,85 poin dan tes akhir diperoleh rata-rata 4,49 poin. Sedangkan Thitung sebesar 7,53774 bila di bandingkan dengan Ttabel sebesar 1,70562 dengan ini sudah jelas ada peningkatan di sebabkan tes awal dan tes akhir mempunyai hasil yang berbeda. Berdasarkan hasil penelitian dan pembahasan yang telah dilakukan, maka dapat dipahami bahwa Latihan Sprint dan Box Skip memberikan pengaruh terhadap peningkatan kemampuan lompat jauh pada pusat pelatihan atletik junior Muaro Jambi.