bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pengaruh Berpikir Kausalitik Ber-Scaffolding Terhadap Kemampuan Pemecahan-Masalah Kalor pada Siswa SMA
Authors: Yuliana Ina , Rokhmat Joni , Gunada I Wayan 
Published: February 2018

<p class="AbstractEnglish"><strong>Abstract:</strong>. Causalitical thinking consists of causality and analytics thinking. Both are one of the strategies that have the potential to facilitate students to overcome the ability of problem solving physics is still lacking. This research aimed to identify the impact of causalitic-thinking process in scaffolding form on problem-solving ability (PSA) of heat on senior high school (SHS) students. This research is a quasi-experimental type with non-equivalent control group design. This research used purposive sampling technique and it obtained the class X.1 (27) as the experimental class and class X.2 (28) as the control class. The PSA data were obtained from a set essay tests and tested with t-test polled variance with significant level of 5%. The result was that t<sub>counted </sub>(2.02) greater than that of t<sub>table</sub> (2.00) which indicated that the causalitic-thinking process in scaffolding form significantly increased the problem-solving ability of heat on senior high school students.</p><p class="KeywordsEngish"> </p><p class="AbstrakIndonesia"><strong>Abstrak:</strong> Berpikir Kausalitik terdiri dari berpikir kausalitas dan analitik. Keduanya merupakan salah satu strategi yang berpotensi memfasilitasi siswa untuk mengatasi kurang berkembangnya kemampuan pemecahan masalah fisika siswa. Penelitian ini bertujuan untuk mengidentifikasi pengaruh proses berpikir kausalitik ber-scaffolding terhadap kemampuan pemecahan-masalah (KPM) kalor pada siswa sekolah menengah atas (SMA). Jenis penelitian ini adalah quasi eksperimental dengan desain non-equivalent control group design. Sampel diambil dengan menggunakan teknik purposive sampling, sehingga diperoleh kelas X.1 (27) sebagai kelas eksperimen dan kelas X.2 (28) sebagai kelas kontrol. Data penelitian diperoleh dari tes KPM yang berbentuk essai. Data hasil dianalisis menggunakan uji-t polled varian dengan taraf signifikan 5% dan diperoleh nilai t<sub>hit</sub><sub>ung</sub>(2.02) lebih besar dari t<sub>table</sub> (2.00). Simpulan penilitian adalah bahwa proses berpikir kausalitik ber-scaffolding secara signifikan meningkatkan kemampuan-pemecahan-masalah siswa SMA pada materi kalor.</p>
Analisis Interaksi Model Pembelajaran dan Berpikir Kritis Terhadap Hasil Belajar Siswa Pada Materi Pokok Suhu dan Perpindahan Kalor Kelas X Semester II SMA Negeri 16 Medan
Authors: Tarigan Ratelit 
Published: February 2018

<p class="AbstractEnglish"><strong>Abstract:</strong> The research aim is known influence of interaction between learning model and ability level of critical thinking from learning outcomes of physics. Type of this research is quasy experiment with two group pretest-posttest design. The population of this research are all the students X grades semester II, which consist of four classes with cluster random sampling which X-Mia3 as experiment class and X-Mia2 as controlling class. The instrument to take data of outcomes learning is essay test with 8 questions and test of critical thinking in essay in 10 questions. Both of questions are validated of 4 validations to resulting valid instrument. The instrument of learning outcomes which have valid applying for students before studying activity. In the start of study, the student is given critical thinking question and then analyzing the data, interaction between learning model and level of high ability critical thinking for outcomes learning of physics. In conclusion, model of learning more domain than level of outcomes learning ability to critical thinking.</p><p class="KeywordsEngish"> </p><p class="AbstrakIndonesia"><strong>Abstrak:</strong><strong> </strong>Penelitian ini bertujuan untuk mengetahui pengaruh intreaksi antara model pembelajaran dan tingkat kemampuan berpikir kritis tinggi terhadap hasil belajar fisika. Jenis penelitian ini adalah quasi eksperimen dengan two group pretest-posttest design. Populasi dalam penelitian ini adalah seluruh siswa kelas X semester II yang terdiri dari 4 kelas. Pengambilan sampel dilakukan dengan cara cluster random sampling yaitu kelas X-Mia<sub>3</sub> sebagai kelas eksperimen dan kelas X-Mia<sub>2</sub> sebagai kelas kontrol. Instrumen yang digunakan untuk pengambilan data hasil belajar dalam bentuk essay dengan jumlah 8 soal dan tes berpikir kritis dalam bentuk essay dengan jumlah 10 soal. Kedua soal divalidasi oleh 4 validator sehingga menghasilkan instrumen yang lebih valid. Instrumen tes hasil belajar yang sudah valid diterapkan terhadap siswa sebelum dilakukan kegitan belajar mengajar (ujiawal). Awal pembelajaran diberikan soal berpikir kritis, kemudian data tersebut dianalisis, menghasilkan terdapat interaksi antara model pembelajaran dan tingkat kemampuan berpikir kritis tinggi terhadap hasil belajar fisika. Dalam hal ini, model pembelajaran lebih dominan dibandingkan dengan tingkat kemampuan berpikir kritis terhadap hasil belajar siswa<em></em></p>
Uji Homogenitas dan Stabilitas Suhu Mini Liquid Bath untuk Kalibrasi Termometer Digital Makanan
Authors: Indrayani Liza , Sasono Margi 
Published: February 2018

<p class="AbstrakIndonesia"><strong>Abstrak: </strong>Uji homogenitas dan stabilitas suhu di dalam Mini Liquid Bath untuk kalibrasi termometer digital dalam industri makanan atau Digital Food Thermometer telah dilakukan. Mini Liquid Bath yang akan diuji memiliki bentuk tabung silinder dengan diameter 6.5 cm dan tinggi 13.5 cm. Uji homogenitas suhu dilakukan pada gradien radial dan axial pada silinder bath dengan menggunakan 6 buah sensor termokopel dari sebuah termometer multi channel. Sementara itu, uji stabilitas suhu menggunakan sebuah termometer yang diletakkan pada titik tengah geometris di dalam bath selama beberapa waktu. Selanjutnya, hasil uji ini digunakan untuk menentukan nilai sumbangan ketidakpastian dalam proses kalibrasi termometer digital dengan cara-cara ISO-GUM (International Standardization Organization-Guide Uncertainty Measurement). Berdasarkan hasil penelitian, kondisi stabil pada Mini Liquid Bath diperoleh yaitu pada titik suhu rendah berkisar dengan ketidakpastian dan suhu tinggi berkisar dengan ketidakpastian Hasil uji homogenitas, pada suhu rendah diperoleh ketidakpastian sebesar dan suhu tinggi diperoleh ketidakpastian . Hasil kalibrasi termometer digital dengan menggunakan Mini Liquid Bath tersebut diperoleh koreksi untuk suhu rendah dengan ketidakpastian sebesar . Sementara itu, untuk suhu tinggi diperoleh koreksi dengan ketidakpastian sebesar . Hasil kalibrasi ini dilaporkan dengan tingkat kepercayaan dan faktor cakupan . Dari hasil tersebut, menunjukkan bahwa pada kalibrasi titik suhu rendah, ketidakpastian pengukuran sangat besar. Hal ini diduga akibat kontribusi signifikan ketidakpastian homogenitas dan stabilitas suhu pada titik suhu rendah.<strong></strong></p>
The Medial Sural Artery Perforator Flap: The First Choice for Soft-Tissue Reconstruction About the Knee
Authors: Ling Barbara M. , Wettstein Reto , Staub Daniel , Schaefer Dirk J. , Kalbermatten Daniel F. 
Published: February 2018

Background:
The gastrocnemius muscle flap may be considered the first choice in many cases of soft-tissue reconstruction about the knee. Limited arc of rotation and reach of the flap as well as unsightly muscle bulk are major disadvantages and were the impetus to look for a local alternative. The aim of this study is to present a consecutive series of patients with a reconstruction about the knee involving the medial sural artery perforator flap (MSAPF).

Methods:
A consecutive series of 17 cases of defect reconstructions about the knee using the MSAPF is described, with an emphasis on early postoperative complications.

Results:
No major flap-related complications occurred except 1 case of tip necrosis that healed uneventfully after excision and secondary suture. Two patients with direct donor-site closure had a minor complication that required no revision, and 2 had partial skin-graft loss.

Conclusions:
In summary, use of this pedicled perforator flap represents a reliable technique for soft-tissue reconstruction about the knee with an acceptable complication rate and optimal contour reconstruction without the need for a skin graft and secondary debulking procedures. The range of motion associated with the MSAPF in comparison to the range associated with the gastrocnemius muscle flap is increased so that more proximal and lateral defects can be covered.

Level of Evidence:
Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
Digital Radiography in Total Hip Arthroplasty
Authors: Penenberg Brad L. , Samagh Sanjum P. , Rajaee Sean S. , Woehnl Antonia , Brien William W. 
Published: February 2018

Background:
Obtaining the ideal acetabular cup position in total hip arthroplasty remains a challenge. Advancements in digital radiography and image analysis software allow the assessment of the cup position during the surgical procedure. This study describes a validated technique for evaluating cup position during total hip arthroplasty using digital radiography.

Methods:
Three hundred and sixty-nine consecutive patients undergoing total hip arthroplasty were prospectively enrolled. Preoperative supine anteroposterior pelvic radiographs were made. Intraoperative anteroposterior pelvic radiographs were made with the patient in the lateral decubitus position. Radiographic beam angle adjustments and operative table adjustments were made to approximate rotation and tilt of the preoperative radiograph. The target for cup position was 30° to 50° abduction and 15° to 35° anteversion. Intraoperative radiographic measurements were calculated and final cup position was determined after strict impingement and range-of-motion testing. Postoperative anteroposterior pelvic radiographs were made. Two independent observers remeasured all abduction and anteversion angles.

Results:
Of the cups, 97.8% were placed within 30° to 50° of abduction, with a mean angle (and standard deviation) of 39.5° ± 4.6°. The 2.2% of cups placed outside the target zone were placed so purposefully on the basis of intraoperative range-of-motion testing and patient factors, and 97.6% of cups were placed between 15° and 35° of anteversion, with a mean angle of 26.6° ± 4.7°. Twenty-eight percent of cups were repositioned on the basis of intraoperative measurements. Subluxation during range-of-motion testing occurred in 3% of hips despite acceptable measurements, necessitating cup repositioning. There was 1 early anterior dislocation.

Conclusions:
Placing the acetabular component within a target range is a critical component to minimizing dislocation and polyethylene wear in total hip arthroplasty. Using digital radiography, we positioned the acetabular component in our desired target zone in 97.8% of cases and outside the target zone, purposefully, in 2.2% of cases. When used in conjunction with strict impingement testing, digital radiography allows for predictable cup placement in total hip arthroplasty.
An Easy-to-Use Prognostic Model for Survival Estimation for Patients with Symptomatic Long Bone Metastases
Authors: Willeumier J.J. , van der Linden Y.M. , van der Wal C.W.P.G. , Jutte P.C. , van der Velden J.M. , Smolle M.A. , van der Zwaal P. , Koper P. , Bakri L. , de Pree I. , Leithner A. , Fiocco M. , Dijkstra P.D.S. 
Published: February 2018

Background:A survival estimation for patients with symptomatic long bone metastases (LBM) is crucial to prevent overtreatment and undertreatment. This study analyzed prognostic factors for overall survival and developed a simple, easy-to-use prognostic model.Methods:A multicenter retrospective study of 1,520 patients treated for symptomatic LBM between 2000 and 2013 at the radiation therapy and/or orthopaedic departments was performed. Primary tumors were categorized into 3 clinical profiles (favorable, moderate, or unfavorable) according to an existing classification system. Associations between prognostic variables and overall survival were investigated using the Kaplan-Meier method and multivariate Cox regression models. The discriminatory ability of the developed model was assessed with the Harrell C-statistic. The observed and expected survival for each survival category were compared on the basis of an external cohort.Results:Median overall survival was 7.4 months (95% confidence interval [CI], 6.7 to 8.1 months). On the basis of the independent prognostic factors, namely the clinical profile, Karnofsky Performance Score, and presence of visceral and/or brain metastases, 12 prognostic categories were created. The Harrell C-statistic was 0.70. A flowchart was developed to easily stratify patients. Using cutoff points for clinical decision-making, the 12 categories were narrowed down to 4 categories with clinical consequences. Median survival was 21.9 months (95% CI, 18.7 to 25.1 months), 10.5 months (95% CI, 7.9 to 13.1 months), 4.6 months (95% CI, 3.9 to 5.3 months), and 2.2 months (95% CI, 1.8 to 2.6 months) for the 4 categories.Conclusions:This study presents a model to easily stratify patients with symptomatic LBM according to their expected survival. The simplicity and clarity of the model facilitate and encourage its use in the routine care of patients with LBM, to provide the most appropriate treatment for each individual patient.Level of Evidence:PrognosticLevel IV. See Instructions for Authors for a complete description of levels of evidence.
Intermediate-Term Hip Survivorship and Patient-Reported Outcomes of Periacetabular Osteotomy
Authors: Wells Joel , Schoenecker Perry , Duncan Stephen , Goss Charles W. , Thomason Kayla , Clohisy John C. 
Published: February 2018

Update
This article was updated on February 7, 2018, because of a previous error. On page 219, in Figure 1, the text that had read “122 Preserved Hips (WOMAC Pain Score <10, mHHS >70 and THA)” now reads “122 Preserved Hips (WOMAC Pain Score <10, mHHS >70 and No THA)”.
An erratum has been published: J Bone Joint Surg Am. 2018 Mar 21;100(6):e40.

Background:
The Bernese periacetabular osteotomy (PAO) is an alternative to arthroplasty for treating symptomatic acetabular dysplasia, but there have been few studies on the intermediate-term outcomes of this procedure. In the present study, we assessed intermediate-term hip survival and patient-reported outcomes of PAO used to treat symptomatic acetabular dysplasia.

Methods:
From July 1994 to August 2008, 238 hips (206 patients) were treated with PAO. Sixty-two had a diagnosis other than classic acetabular dysplasia, and 22 were lost to follow-up. The remaining 154 hips (129 patients) were evaluated at an average of 10.3 years postoperatively. Kaplan-Meier analysis was used to assess survivorship with an end point of total hip arthroplasty (THA). Hips were evaluated using the University of California at Los Angeles (UCLA) Activity Score, modified Harris hip score (mHHS), and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain subscale score. A WOMAC pain subscale score of ≥10 and/or an mHHS of ≤70 were considered to indicate a clinically symptomatic hip.

Results:
Kaplan-Meier analysis revealed a hip survival rate of 92% (95% confidence interval [CI]: 82% to 97%) at 15 years postoperatively. Eight hips (5%) underwent THA at a mean (and standard deviation) of 6.8 ± 5.2 years. Twenty-four additional hips (16%) were considered symptomatic based on a WOMAC pain score of ≥10 and/or an mHHS of ≤70. One hundred and twenty-two hips (79%) did not undergo THA and did not meet the criteria for symptoms, and these hips had a mean mHHS of 92.4 ± 8.4, WOMAC pain subscale score of 1.2 ± 1.9, and UCLA Activity Score of 7.7 ± 2.0 at a mean of 10.1 years. A higher risk of failure was associated with fair or poor preoperative joint congruency (odds ratio [OR]: 8.65; 95% CI: 1.18 to 63.55; p = 0.034) and with a postoperative lateral center-edge angle of >38° (OR: 8.04; 95% CI: 2.01 to 32.22). A concurrent head-neck osteochondroplasty was associated with a decreased risk of failure (OR: 0.27; 95% CI: 0.09 to 0.78; p = 0.016).

Conclusions:
This study demonstrates the durability of the Bernese PAO. Fair or poor preoperative joint congruency and excessive postoperative femoral head coverage were found to be predictors of failure, while concurrent head-neck osteochondroplasty in patients with an inadequate range of motion after PAO was associated with a decreased risk of failure.

Level of Evidence:
Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
Femoral Version Abnormalities Significantly Outweigh Effect of Cam Impingement on Hip Internal Rotation
Authors: Kraeutler Matthew J. , Chadayammuri Vivek , Garabekyan Tigran , Mei-Dan Omer 
Published: February 2018

Background:
The purpose of this study was to investigate the effects of femoral version, cam-type femoroacetabular impingement (FAI), and the combination of the 2 on the passive hip range of motion (ROM).

Methods:
We prospectively analyzed a consecutive cohort of 220 patients (440 hips) who presented with unilateral or bilateral hip pain. The passive hip ROM was measured bilaterally with the patient in prone, supine, and lateral positions. Femoral version was measured and the presence of cam-type deformity was determined on preoperative computed tomography (CT) scans. Diagnostic findings of cam-type FAI included an alpha angle of >50° on CT radial sequences of the head-neck junction and a femoral head-neck offset ratio of <0.18 on both radiographs and CT.

Results:
Multivariate linear regression analysis confirmed that femoral version, as compared with the presence of a cam lesion, was a stronger independent predictor of internal rotation ROM. Conversely, the presence of a cam lesion resulted in a significant decrease in the passive hip flexion ROM (p < 0.001) with no additional effects due to the degree of femoral version. The passive hip internal rotation ROM in neutral flexion/extension and with the hip in 90° of flexion were maximized in patients with femoral anteversion and decreased significantly with each incremental decrease in femoral version (p < 0.001).

Conclusions:
Abnormalities in femoral version significantly outweigh the effect of cam-type impingement on the passive hip internal rotation ROM. In contrast, the presence of a cam lesion significantly decreases the hip flexion ROM, irrespective of the degree of femoral version. These findings help to inform surgical decision-making for patients with cam-type FAI or femoral version abnormalities.

Clinical Relevance:
It is common clinical practice to ascribe loss of hip internal rotation to the presence of a cam lesion and to assume that arthroscopic femoral osteoplasty will substantially improve internal rotation postoperatively. Our study shows that the cam lesion is more intimately tied to hip flexion than to hip internal rotation. This result directly impacts the clinical assessment of a patient presenting with radiographic findings of FAI.
Development of a Questionnaire to Measure Impact and Outcomes of Brachial Plexus Injury
Authors: Mancuso Carol A. , Lee Steve K. , Saltzman Eliana B. , Model Zina , Landers Zoe A. , Dy Christopher J. , Wolfe Scott W. 
Published: February 2018

Background:
The physical and psychological impact of brachial plexus injury (BPI) has not been comprehensively measured with BPI-specific scales. Our objective was to develop and test a patient-derived questionnaire to measure the impact and outcomes of BPI.

Methods:
We developed a questionnaire in 3 phases with preoperative and postoperative patients. Phase 1 included interviews of patients using open-ended questions addressing the impact of BPI and improvement expected (preoperative patients) or received (postoperative patients). Phase 2 involved assembling a draft questionnaire and administering the questionnaire twice to establish test-retest reliability. Phase 3 involved selecting final items, developing a scoring system, and assessing validity. Patient scores using the questionnaire were assessed in comparison with scores of the Disabilities of the Arm, Shoulder and Hand (DASH) and RAND-36 measures.

Results:
Patients with partial or complete plexopathy participated. In Phase 1 (23 patients), discrete categories were discerned from open-ended responses and became items for the preoperative and postoperative versions of the questionnaire. In Phase 2 (50 patients [14 from Phase 1]), test-retest reliability was established, with weighted kappa values of ≥0.50 for all items. In Phase 3, 43 items were retained and grouped into 4 subscales: symptoms, limitations, emotion, and improvement expected (preoperative) or improvement received (postoperative). A score for each subscale, ranging from 0 to 100, can be calculated, with higher scores indicating more symptoms, limitations, and emotional distress, and greater improvement expected (or received). Preoperative scores were worse than postoperative scores for the symptoms, limitations, and emotion subscales (composite score of 48 compared with 38; p = 0.05), and more improvement was expected than was received (69 compared with 53; p = 0.01). Correlations with the DASH (0.44 to 0.74) and RAND-36 (0.23 to 0.80) for related scales were consistent and moderate, indicating that the new questionnaire is valid and distinct.

Conclusions:
We developed a patient-derived questionnaire that measures the physical and psychological impact of BPI on preoperative and postoperative patients and the amount of improvement expected or received from surgery. This BPI-specific questionnaire enhances the comprehensive assessment of this population.