bluuebunny/crossref_metadata_2025_split huggingface dataset:
Local recurrence rate in women with breast cancer submitted to conservative surgery and adjuvant radiotherapy / Taxa de recidiva local em mulheres com cancro da mama submetidas a cirurgia conservadora e radioterapia adjuvante
Authors: Freitas Augusto Moura 
Published: March 2022

ABSTRACTTo evaluate the local recurrence rate in women treated with conservative surgery followed by breast irradiation. Methodology: Retrospectively selected female patients between 20 and 80 years old, who performed chemotherapy and or/radiotherapy as adjuvant treatment for breast-sparing surgery (quadrantectomy) for initial clinical stages until IIa. Result: Of the 58 patients selected 31 women were subjected to chemotherapy followed by radiotherapy, 25 women were subjected to exclusive radiotherapy, 1 women subjected to exclusive chemotherapy and 1 women subjected to radiotherapy followed by chemotherapy. The recurrence rate independent of the therapeutic modality used was 12.06%. 71.4% of relapses were at a distance and 28.6% local. Two women presented a local relapse. The local recurrence rate independent of the therapeutic modality used was 3.4%. 1 women subjected to exclusive radiotherapy presented local recurrence. 1 women subjected to radiotherapy followed by chemotherapy presented local recurrence. The local recurrence rate for patients subjected to exclusive radiotherapy was 4%. No women subjected to chemotherapy followed by radiotherapy presented local recurrence. Discussion: The patient who presented recurrence has a death risk 7.93 (IC95% 1,98-31,75; p = 0.003) times greater than the patient who did not present. The global survival in 5 years for patients subjected to isolated radiotherapy versus chemotherapy followed by radiotherapy was 96% x 90.3% (p = ns).
Contexto de la práctica docente en México / Contexto da prática docente no México
Authors: Nava Jacqueline Conzuelo , Bastida Miriam Honorato , Flores German Pereyra , Mendoza Jesús Hernández , Sotelo Alexandra Medina 
Published: March 2022

El contexto escolar de la práctica docente, requiere analizar referentes históricos, para reflexionar sobre su relevancia en el ámbito educativo, por ello, en este ensayo el propósito es integrar elementos que den respuesta, ¿Cuál ha sido la trascendencia de la práctica docente en el contexto escolar de México? Con la intención de analizar, reflexionar y valorar el trabajo cotidiano de la práctica educativa, desde nuestra investigación acción, del Plan de Estudios 2018 de la Licenciatura en Educación Física, una de sus estrategias educativas es aproximar a los estudiantes a los contextos urbanos, urbanos marginales, rurales e indígenas, donde ejecutarán su experiencia, fortaleciendo la realidad social y su práctica; encontrando que la identidad profesional de los maestros la forjan ellos mismos en relación a su profesión y su experiencia. Ante este escenario del contexto de la práctica docente, la docencia es una profesión sociocultural y sociopolítica, a donde la sociedad mexicana, es quien debe asumir la responsabilidad que le corresponde, de manera pertinente, a través de la toma de consciencia y cambio de actitud, para superar la crisis educativa, ante los retos y demandas globales, para garantizar la calidad docente, que atienda las necesidades de cada contexto educativo en México.
Highly sensitive vibration measurement method of nanomechanical resonators using a convolutional neural network
Authors: Tsumune Kohei , Warisawa Shin’ichi , Kometani Reo 
Published: March 2022

Abstract
Nanomechanical resonators can detect various small physical quantities. It is necessary to increase the sensitivity of nanomechanical resonators. In this study, a deep learning-based method is developed for sensitive detection of vibration states of nanomechanical resonators. It enables one to explore the most highly sensitive vibration states without missing targets while conventional methods focus only on the resonant frequency. The proposed method was evaluated with laser intensity. Sensitive measurement of laser intensity has the potential for applications in laser wavelength measurement. The proposed method could identify laser intensity at intervals of 0.03 mW at which the resonance frequency did not shift. Grad-CAM was used to clarify features on the vibration spectra used in the convolutional neural network. Frequency bands other than the resonance frequency band were used for the laser intensity measurement. This result implies that there is a possibility that highly sensitive vibration behavior exists outside the resonance frequency.
Pengembangan Rencana Pelaksanaan Pembelajaran Menggunakan Taksonomi Pendidikan Sains pada Materi Elastisita
Authors: Ferlianti Sisda , Pereira Vitoria Venisia , Kaniawati Ida 
Published: March 2022

Latar Belakang: Penelitian dan pengembangan RPP dilakukan di salah satu sekolah swasta di kabupaten Bandung, dengan subjek penelitian siswa kelas XI sebanyak 21 siswa.
Tujuan: Penelitian pengembangan ini bertujuan untuk menghasilkan Rencana Pelaksanaan Pembelajaran (RPP) menggunakan Taksonomi Pendidikan Sains pada materi elastisitas.
Metode: Metode penelitian ini menggunakan pendekatan model ADDIE yang memiliki lima langkah yaitu Analyze, Design, Develop, Implement, and Evaluate.
Hasil: Penelitian dan pengembangan yang telah dilakukan menghasilkan Rencana Pelaksanaan Pembelajaran (RPP) menggunakan Taksonomi Pendidikan Sains pada materi elastisitas yang layak digunakan dan diimplementasikan.
عقوق الوالدين وعلاقته بالصحة النفسية لدى طالبات معهد إعداد المعلمات
Authors: إبراهيم م. د.رمزية شريف 
Published: March 2022

تنحصر أهمية هذه الدراسة الميدانية والتي تتناول إيجاد علاقة بين الصحة النفسية وعقوق الوالدين لدى طالبات معهد إعداد المعلمات في مدينة كركوك بما ياتي:-
- بضرورة الاهتمام بالطالبات كونهن يسهمن في بناء المجتمع ويصبحن أمهات في المستقبل.
- أهمية المتغيرات التي تناولها البحث ترتبط بالجوانب الأخلاقية والنفسية والاجتماعية
- يعالج البحث مشكلة من مشكلات جيل تمرد على القيم الخلقية والتمرد على الأبوين وعدم طاعتهما .
- تناول البحث الحالي لمفهومين هما عقوق الوالدين والصحة النفسية من حيث أهميتهما واستقصاء العلاقة بينهما.
ويستهدف البحث الحالي التعرف بـ:ــ
1- عقوق الوالدين لدى طالبات معهد إعداد المعلمات.
2- التعرف على مستوى الصحة النفسية لدى طالبات معهد إعداد المعلمات
3-العلاقة بين عقوق الوالدين والصحة النفسية لدى طالبات معهد إعداد المعلمات.
يتحدد البحث الحالي بطالبات معهد إعداد المعلمات في محافظة كركوك للعام الدراسي 2011 ـــ 2012
وفيما يتعلق بالإطار النظري قدمت الباحثة النظريات والدراسات التي تناولت متغير البحث عقوق الوالدين والصحة النفسية . وتحقيقا لأهداف البحث قامت الباحثة بالاعتماد على مقياسين هما مقياس الصحة النفسية ومقياس عقوق الوالدين وجدت الباحثة أن مقياس الصحة النفسية (نمر ،2009 ) ملائم يتكون من (82) فقرة استعانت الباحثة بمقياس عقوق الوالدين،(حداد،2008) الذي يتكون من (31) فقرة. بعد التحقق من توافر دلالات الصدق والثبات للمقياسين تم تطبيقهما على عينة البحث البالغة (130 ) طالبة من طالبات معهد إعداد المعلمات في مدينة كركوك وبعد الانتهاء تم تحليل البيانات بالوسائل الإحصائية .
وأسفرت نتائج تطبيق مقياس الصحة النفسية من وجهة نظر الطالبات على إن المتوسط الحسابي للعينة (266) والانحراف المعياري (19,39) درجة . وعند اختبار دلالة الفروق بين المتوسط الفرضي البالغ (246) والمتوسط الحسابي استخدم الاختبار لعينة واحدة ، فظهرت النتيجة دالة إحصائيا عند مستوى دلالة (05,0) وقيمة ت المحسوبة( 45,52).
أثر توظيف كلٍّ من استراتيجيتي (العصف الذهنيّ والتعلم البنائيّ) في التفكير الاستدلاليّ والدافع المعرفيّ لطلاب الصف الثاني المتوسط
Authors: صالح م. م. عبد الستار مرهون 
Published: March 2022

يرمي البحث التعرف بأثر استخدام كلٍّ من استراتيجيتي التعلم البنائي والعصف الذهني في تدريس الرياضيات في تنمية التفكير الاستدلاليّ، وتنمية الدافع المعرفي لدى طلاب الصف الثاني المتوسط.
يتألف مجتمع البحث من جميع طلاب الصف الثاني المتوسط للعام الدراسي (2013 – 2014) من متوسطة الناصر للبنين / الكرخ الثالثة والبالغ عددهم (188) طالب. وموزعين بطريقة عشوائية على (خمس شعب)، اختار منها بشكل عشوائي القاعة (جـ) لتمثل المجموعة التجريبية الاولى التي تدرس باستخدام (ااستراتيجية التعلم البنائي) والقاعة (ب) المجموعة التجريبية الثانية التي تدرس باستخدام (ااستراتيجية العصف الذهني). أما عينة الدراسة؛ فقد بلغت (76) طالباً موزعين على شعبتين، بلغ عدد طلاب المجموعة التجريبية الاولى (38) طالبًا، والمجموعة التجريبية الثانية (38) طالبًا.
أساليب التعلم وعلاقتها بالحاجة الى المعرفة لدى طلبة المرحلة الاعدادية
Authors: كويطع الكعبيّ م. د. كاظم محسن 
Published: March 2022

رمى البحث التعرف بأساليب التعلم وايضاً التعرف على مستوى الحاجة الى المعرفة وما هي العلاقة بينهما لدى طلبة المرحلة الاعدادية ، ولغرض التحقق من ذلك تم استعمال مقياس اساليب التعلم المعد من قبل ريشارد فلدر(Richard Felder) وباربارا سولومون (Barbara Solomon) عام (2000) المبني في ضوء نموذج فلدر وسلفرمان ترجمة (السناوي 2013) ومقياس الحاجة الى المعرفة المعد من كاسيوبو وبيتي وكاو( 1984) Cacioppo ,Petty & Kao ، إذ بلغ عدد فقرات مقياس اساليب التعلم (44) فقرة ومقياس الحاجة الى المعرفة (18) فقرة وقد تم التحقق من الخصائص السايكومترية للمقياسين وبعدها تم تطبيق الاداتين على عينة البحث والتي بلغت (300) طالب وطالبة من طلبة المرحلة الاعدادية تم اختيارهم بالطريقة العشوائية الطبقية، واظهرت نتائج ان افراد عينة البحث ليس لديهم اسلوب محدد من التعلم ولديهم حاجة الى المعرفة أذ كان متوسط درجاتهم اعلى من الوسط الفرضي وكذلك، وجود علاقة ارتباطية طردية بين الحاجة الى المعرفة واساليب التعلم ،وقد يعود السبب الى ان الطلبة الذين لديهم حاجة الى المعرفة عالية يستخدمون اساليب تعلم معرفية كثيرة ويستخدم كل متعلم جميع الأساليب في أوقات مختلفة ولكن ليس من الضروري أن تكون جميعها في المستوى نفسه من الاستخدام وكما جاء في النظرية المتبناة.
ELECTROMECHANICAL CONVERTER FOR ENERGY HARVESTING IN MEDICAL APPLICATIONS
Authors:   ", VELI Yelda ,   University POLITEHNICA of Bucharest Faculty of Electrical Engineering", MOREGA Alexandru M. ,   "University POLITEHNICA of Bucharest, Electrical Engineering Faculty and Institutul de Statistică Matematică și Matematică Aplicată, Academia Română"
Published: March 2022

The paper analyzes an electromechanical converter used to collect the mechanical energy provided by the field of deformation of the walls of an arterial vessel as a result of the pulsating flow of blood through it. The structure of the converter is based on the flow of a strong electrically conductive fluid through channels in the magnetic field provided by the permanent magnets placed concentrically along the device and the arterial vessel, the electric field occurring at the electrodes. Numerical analysis neglects the electrical conductivity of the blood. The device has a wide range of applicability and can be adapted to meet industry requirements.
SOFTWARE MODULE FOR DESIGNING THREE-PHASE ROTARY ELECTRIC MACHINE WINDERS
Authors:   ", CHIRILĂ Aurel-Ionuț ,   University POLITEHNICA of Bucharest Faculty of Electrical Engineering", DEACONU Ioan-Dragoș ,   "University POLITEHNICA of Bucharest Faculty of Electrical Engineering", STĂNCESCU CÎRSTOIU Adelina-Maria ,   "University POLITEHNICA of Bucharest Faculty of Electrical Engineering", BACIU George-Adrian ,   "University POLITEHNICA of Bucharest Faculty of Electrical Engineering", IONESCU Andreea-Roxana ,   "University POLITEHNICA of Bucharest Faculty of Electrical Engineering", POPESCU Sergiu Valentin ,   S.C. ELECTROTEHNICA Echipamente Electrice SA
Published: March 2022

The paper presents a software module developed that allows the design of windings for three-phase alternating current rotary electric machines. Starting from some initial data such as the number of pairs of poles and the number of notches per pole and phase, we obtain the diagram of the three-phase winding with diametric pitch, in a layer and integer number of notches per pole and phase. The program provides the designer in addition to the notched distribution of the coil sides, the relative distribution of the solemnity and the star of the notches.
Two-step single-reactor synthesis of oleic acid- or undecylenic acid-stabilized magnetic nanoparticles by thermal decomposition method
Authors: Nahorniak Mykhailo , Pasetto Pamela , Greneche Jean-Marc , Samaryk Volodymyr , Auguste Sandy , Rousseau Anthony , Nosova Nataliya , Varvarenko Serhii 
Published: March 2022

Different iron oxides (i.e., magnetite, maghemite, goethite, wüstite) show distinct effects on biological objects, and thus the investigations of the morphology and phase-structural state have prime priority for their biomedical applications.The aim of this work was to develop one-pot synthesis of magnetic nanoparticles by thermolysis of Fe(III)-oleate or Fe(III)-undecylate in a high-boiling point solvent in situ, using Fe(III)-acetylacetonate. Magnetic nanoparticles were characterized by transmission electron microscopy, dynamic light scattering, thermogravimetric analysis, АТR-FTIR and 57Fe Mössbauer spectroscopy, X-ray diffraction in terms of morphology, hydrodynamic diameter and composition, respectively. The effect of the solvent and unsaturated higher carboxylic acid, used as a reagent and nanoparticles stabilizer, on the particles’ properties was investigated. Synthesis using undecylenic acid led to the formation of iron oxide particles with larger diameter (11-16 nm according to TEM) which were in 75% formed of magnetite. According to the Mössbauer and XRD results, the organic shell thickness around the nanoparticles depended on the nature of the stabilizer, but it did not prevent the partial oxidation of the particles magnetite core to maghemite. In contrast, monodisperse single-domain maghemite nanoparticles with size less than 8 nm were synthesized using oleic acid in 1-octadecene.
Complex Modulation of Rapidly Rotating Young M Dwarfs: Adding Pieces to the Puzzle
Authors: Günther Maximilian N. , Berardo David A. , Ducrot Elsa , Murray Catriona A. , Stassun Keivan G. , Olah Katalin , Bouma L. G. , Rappaport Saul , Winn Joshua N. , Feinstein Adina D. , Matthews Elisabeth C. , Sebastian Daniel , Rackham Benjamin V. , Seli Bálint , J. Triaud Amaury H. M. , Gillen Edward , Levine Alan M. , Demory Brice-Olivier , Gillon Michaël , Queloz Didier , Ricker George R. , Vanderspek Roland K. , Seager Sara , Latham David W. , Jenkins Jon M. , Brasseur C. E. , Colón Knicole D. , Daylan Tansu , Delrez Laetitia , Fausnaugh Michael , Garcia Lionel J. , Jayaraman Rahul , Jehin Emmanuel , Kristiansen Martti H. , Kruijssen J. M. Diederik , Pedersen Peter Pihlmann , Pozuelos Francisco J. , Rodriguez Joseph E. , Wohler Bill , Zhan Zhuchang 
Published: March 2022

Abstract
New sets of young M dwarfs with complex, sharp-peaked, and strictly periodic photometric modulations have recently been discovered with Kepler/K2 (scallop shells) and TESS (complex rotators). All are part of star-forming associations, are distinct from other variable stars, and likely belong to a unified class. Suggested hypotheses include starspots, accreting dust disks, corotating clouds of material, magnetically constrained material, spots and misaligned disks, and pulsations. Here, we provide a comprehensive overview and add new observational constraints with TESS and SPECULOOS Southern Observatory photometry. We scrutinize all hypotheses from three new angles: (1) We investigate each scenario’s occurrence rates via young star catalogs, (2) we study the feature’s longevity using over one year of combined data, and (3) we probe the expected color dependency with multicolor photometry. In this process, we also revisit the stellar parameters accounting for activity effects, study stellar flares as activity indicators over year-long timescales, and develop toy models to simulate typical morphologies. We rule out most hypotheses, and only (i) corotating material clouds and (ii) spots and misaligned disks remain feasible—with caveats. For (i), corotating dust might not be stable enough, while corotating gas alone likely cannot cause percentage-scale features and (ii) would require misaligned disks around most young M dwarfs. We thus suggest a unified hypothesis, a superposition of large-amplitude spot modulations and sharp transits of corotating gas clouds. While the complex rotators’ mystery remains, these new observations add valuable pieces to the puzzle going forward.
Effects of Forcing on Shocks and Energy Dissipation in Interstellar and Intracluster Turbulences
Authors: Cho Hyunjin , Ryu Dongsu , Kang Hyesung 
Published: March 2022

Abstract
Observations indicate that turbulence in the interstellar medium (ISM) is supersonic (M
turb ≫ 1) and strongly magnetized (β ∼ 0.01–1), while in the intracluster medium (ICM) it is subsonic (M
turb ≲ 1) and weakly magnetized (β ∼ 100). Here, M
turb is the turbulent Mach number and β is the plasma beta. We study the properties of shocks induced in these disparate environments, including the distribution of the shock Mach number, M

s
, and the dissipation of the turbulent energy at shocks, through numerical simulations using a high-order, accurate code based on the weighted essentially nonoscillatory scheme. In particular, we investigate the effects of different modes of the forcing that drives turbulence: solenoidal, compressive, and a mixture of the two. In ISM turbulence, while the density distribution looks different with different forcings, the velocity power spectrum, P

v
, on small scales exhibits only weak dependence. Hence, the statistics of shocks depend weakly on forcing either. In the ISM models with M
turb ≈ 10 and β ∼ 0.1, the fraction of the turbulent energy dissipated at shocks is estimated to be ∼15%, not sensitive to the forcing mode. In contrast, in ICM turbulence, P

v
as well as the density distribution show strong dependence on forcing. The frequency and average Mach number of shocks are greater for compressive forcing than for solenoidal forcing; so is the energy dissipation. The fraction of the ensuing shock dissipation is in the range of ∼10%–35% in the ICM models with M
turb ≈ 0.5 and β ∼ 106. The rest of the turbulent energy should be dissipated through turbulent cascade.
Less Than 1% of Core-collapse Supernovae in the Local Universe Occur in Elliptical Galaxies
Authors: Irani I. , Prentice S. J. , Schulze S. , Gal-Yam A. , Teffs Jacob , Mazzali Paolo , Sollerman J. , Gonzalez E. P. , Taggart K. , De Kishalay , Fremling Christoffer , Perley Daniel A. , Strotjohann Nora L. , Kasliwal Mansi M. , Howell A. , Dhawan S. , Tzanidakis Anastasios , Hiramatsu Daichi , Kool Erik C. , Anderson J. P. , Müller-Bravo T. E. , Dekany Richard , Gromadzki Mariusz , Carini Roberta , Galbany L. , Drake Andrew J. , Burke Jamison , Pellegrino Craig , Della Valle Massimo , Medford Michael S. , Rusholme Ben , Young D. R. , Gutiérrez Claudia P. , Inserra Cosimo , Omer Rafia , Shupe David L. , Chen T.-W. , Shin Kyung Min , Yaron Ofer , McCully Curtis , Nicholl Matt , Riddle Reed 
Published: March 2022

Abstract
We present observations of three core-collapse supernovae (CCSNe) in elliptical hosts, detected by the Zwicky Transient Facility Bright Transient Survey (BTS). SN 2019ape is a SN Ic that exploded in the main body of a typical elliptical galaxy. Its properties are consistent with an explosion of a regular SN Ic progenitor. A secondary g-band light-curve peak could indicate interaction of the ejecta with circumstellar material (CSM). An Hα-emitting source at the explosion site suggests a residual local star formation origin. SN 2018fsh and SN 2020uik are SNe II which exploded in the outskirts of elliptical galaxies. SN 2020uik shows typical spectra for SNe II, while SN 2018fsh shows a boxy nebular Hα profile, a signature of CSM interaction. We combine these 3 SNe with 7 events from the literature and analyze their hosts as a sample. We present multi-wavelength photometry of the hosts, and compare this to archival photometry of all BTS hosts. Using the spectroscopically complete BTS, we conclude that

0.3

%

−
0.1

+
0.3

of all CCSNe occur in elliptical galaxies. We derive star formation rates and stellar masses for the host galaxies and compare them to the properties of other SN hosts. We show that CCSNe in ellipticals have larger physical separations from their hosts compared to SNe Ia in elliptical galaxies, and discuss implications for star-forming activity in elliptical galaxies.
On the Application of Differential Evolution to the Analysis of X-Ray Spectra*
Authors: Kępa Anna , Sylwester Barbara , Siarkowski Marek , Sylwester Janusz 
Published: March 2022

Abstract
Using methods of differential evolution (DE), we determined the coronal elemental abundances and the differential emission measure (DEM) distributions for the plasma flaring on 2003 January 21. The analyses have been made based on RESIK X-ray spectra. DE belongs to the family of evolutionary algorithms. DE is conceptually simple and easy to implement, so it has been applied to solve many problems in science and engineering. In this study we apply this method in a new context: simultaneous determination of plasma composition and DEM. In order to increase the confidence of the results obtained using DE, we tested the use of its algorithms by comparing the DE synthesized with respective spectra observed by RESIK. Extensive discussion of the DE method used and the obtained physical characteristics of flaring plasma is presented.
Host Dark Matter Halos of SDSS Red and Blue Quasars: No Significant Difference in Large-scale Environment
Authors: Petter Grayson C. , Hickox Ryan C. , Alexander David M. , Geach James E. , Myers Adam D. , Rosario David J. , Fawcett Victoria A. , Klindt Lizelke , Whalen Kelly E. 
Published: March 2022

Abstract
The observed optical colors of quasars are generally interpreted in one of two frameworks: unified models that attribute the color to the random orientation of the accretion disk along the line of sight, and evolutionary models that invoke connections between quasar systems and their environments. We test these schemas by probing the dark matter halo environments of optically selected quasars as a function of g − i optical color by measuring the two-point correlation functions of ∼0.34 million eBOSS quasars as well as the gravitational deflection of cosmic microwave background photons around ∼0.66 million XDQSO photometric quasar candidates. We do not detect a trend of halo bias with optical color through either analysis, finding that optically selected quasars at 0.8 < z < 2.2 occupy halos of characteristic mass M

h
∼ 3 × 1012
h
−1
M
⊙ regardless of their color. This result implies that a quasar’s large-scale halo environment is not strongly connected to its observed optical color. We also confirm the findings of fundamental differences in the radio properties of red and blue quasars by stacking 1.4 GHz FIRST images at their positions, suggesting the observed differences cannot be attributed to orientation. Instead, the differences between red and blue quasars likely arise on nuclear-galactic scales, perhaps owing to reddening by a nuclear dusty wind. Finally, we show that optically selected quasars’ halo environments are also independent of their r − W2 optical–infrared colors, while previous work has suggested that mid-infrared-selected obscured quasars occupy more massive halos. We discuss the implications of this result for models of quasar and galaxy coevolution.