bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sistema de barras magnéticas. Resultados y complicaciones
Authors: Falconi Boris , Remondino Rodrigo G. , Piantoni Lucas , Tello Carlos , Galaretto Eduardo , Frank Sofía , Noel Mariano A. 
Published: June 2023

Introducción: El uso del sistema de barras magnéticas para el tratamiento de la escoliosis de comienzo temprano es un método utilizado en los últimos 10 años; su eficacia está respaldada por la bibliografía, pero no está exento de complicaciones.
Objetivo: Analizar retrospectivamente una serie de 37 pacientes tratados con barras magnéticas en escoliosis de comienzo temprano.
Materiales y Métodos: Se realizó un estudio retrospectivo entre 2014 y 2019. Se dividió a los pacientes en: grupo 1 (procedimientos primarios con barras magnéticas) y grupo 2 (conversiones de sistema tradicional a barras magnéticas).
Resultados: Se incluyó a 19 niñas y 18 niños (edad promedio 8 años al operarse), las etiologías fueron variadas. Entre el grupo 1 (n = 28) y el grupo 2 (n = 9), el seguimiento promedio posoperatorio fue de 3.6 años. El valor angular promedio preoperatorio de escoliosis era de 64° (rango 39°-101°) y el de cifosis, de 51° (rango 7°-81°). El valor angular promedio de escoliosis en el posoperatorio inmediato fue de 41° (rango 17°-80°) y el de cifosis, de 34° (rango 7°-82°). Se produjeron 2 roturas de barra y una cifosis de unión proximal, 2 aflojamientos de tornillos proximales, una falla del sistema de distracción de barras magnéticas y una infección del sitio quirúrgico.
Conclusiones: Nuestros resultados preliminares, aunque son a corto plazo, sugieren que la barra magnética podría ser un método eficaz en este tipo de enfermedad.
Participación de la mujer a nivel societario e institucional en la Asociación Argentina de Ortopedia y Traumatología
Authors: Bruchmann María Guillermina , Barcia Sergio Andrés , Dello Russo Bibiana , Vivas Mauro , Aquino Gabriela , Santini Araujo María Gala 
Published: June 2023

Objetivo: Analizar la representación de la mujer a nivel societario dentro de la Asociación Argentina de Ortopedia y Traumatología (AAOT).
Materiales y Métodos: Se realizó un estudio observacional y descriptivo analizando datos obtenidos del período entre el 1 de enero de 2015 y el 31 de diciembre de 2019. Se evaluó la proporción de mujeres que son miembros de la AAOT y su participación a nivel institucional, jerárquico y académico.
Resultados: La mujer representa el 10,6% de todos los miembros de la AAOT. Doce mujeres participan activamente en los diferentes Comités de la Asociación, lo que representa un 16% del total de los integrantes. Durante el período de estudio, el 2,8% de los cargos de la Comisión Directiva fueron ocupados por mujeres. Una mujer fue Presidenta en la historia de la AAOT. En 2019, el 6,9% de los docentes que dictaron el Curso Oficial Nacional Bianual de Certificación de Ortopedia y Traumatología fueron mujeres.
Conclusión: La mujer representa el 10,6% de los miembros de la AAOT. Conocer su situación dentro de la AAOT permite sentar las bases para implementar medidas orientadas a mejorar la equidad en la Ortopedia y Traumatología.
Columna vertebral flotante y otras variantes de la asociación de múltiples fracturas vertebrales inestables simultáneas
Authors: Ricciardi Guillermo Alejandro , Romero Valverde Lyanne Julieth , Formaggin Santiago , Garfinkel Ignacio , Carrioli Gabriel , Ricciardi Daniel Oscar 
Published: June 2023

Introducción: El objetivo de este estudio fue evaluar a una serie de pacientes con la asociación de múltiples fracturas vertebrales inestables (tipo B o C) simultáneas.
Materiales y Métodos: Estudio descriptivo de pacientes con trauma vertebromedular de alta energía y asociación de múltiples fracturas vertebrales inestables simultáneas entre enero de 2015 y enero de 2021. Se incluyó a pacientes con fracturas vertebrales múltiples tipo B (asociación de lesión ligamentaria) o tipo C (evidencia de subluxación/ luxación). Se excluyó a pacientes con registros incompletos de historias clínicas, fracturas por osteoporosis o patológicas y seguimiento <3 meses.
Resultados: Se constataron 5 pacientes (1 mujer y 4 hombres) con dos fracturas vertebrales inestables simultáneas, con 4 casos (80%) de fracturas no contiguas y 3 casos (60%) con 2 luxofracturas simultáneas no contiguas (“columna flotante”); 2 (40%) pacientes presentaron la asociación de una fractura tipo B con una tipo C. La mediana de la edad era de 35 años. Todos tenían traumatismos de alta energía con lesiones asociadas. Los pacientes fueron operados por vía posterior convencional, con reducción y artrodesis larga. Se constató la recuperación neurológica en 2 pacientes.
Conclusión: Presentamos una serie de casos de múltiples fracturas vertebrales inestables (tipo B o C) y simultáneas por traumatismos de alta energía. Esta asociación e lesiones es poco frecuente y tiene una elevada morbilidad relacionada con el trauma vertebral, sistémico y neurológico.
Planificación basada en imágenes de resonancia magnética para la cirugía de columna de acceso lateral. ¿Es un procedimiento seguro? Estudio descriptivo de distribución de grandes vasos y psoas
Authors: De Zavalía Máximo , Pierro Inés , Mazzeo Juan J. , Gobbi Enrique A. 
Published: June 2023

Objetivo: Realizar una descripción anatómica de las estructuras involucradas en el abordaje para la técnica de abordaje lateral (fusión intersomática lateral extrema) basada en imágenes de resonancia magnética en decúbito dorsal.
Materiales y Métodos: Se llevó a cabo un estudio observacional, descriptivo, retrospectivo, de 200 pacientes evaluados con resonancia magnética de columna lumbosacra. Se tomaron mediciones en cortes axiales para determinar el posicionamiento de la vena cava, la arteria aorta, y el ancho y la altura del músculo psoas a fin de delimitar zonas de seguridad y de riesgo.
Resultados: La muestra final incluyó a 164 pacientes con una edad media de 50.4 años en los hombres y 50.6 años en las mujeres. La arteria aorta abdominal en su recorrido hasta el espacio L3-L4 se ubica predominantemente del lado izquierdo en la zona A y, al llegar al espacio L4-L5, en el 95,7% de los pacientes, se observó la bifurcación de las arterias ilíacas. La vena cava mostró una tendencia de localizaciónhacia el lado derecho y su bifurcación a nivel de L4-L5.
Conclusiones: La planificación preoperatoria y la delimitación de la zona segura representan un método sencillo para evaluar la posición relativa de las estructuras anatómicas neurales y vasculares en relación con el área quirúrgica. Este método puede ayudar a los cirujanos de columna a prevenir complicaciones perioperatorias.
Precise determination of Young’s modulus of amorphous CuZr/nanocrystalline Cu multilayer via nanoindentation
Authors: Lassnig Alice , Zak Stanislav 
Published: June 2023

AbstractExtracting mechanical data of thin films on rigid substrates using nanoindentation is compromised by the mechanical properties of underlying substrates, which may falsify the obtained results. With ongoing miniaturization, the substrate influence becomes more pronounced. In this study we present an experimental approach to extract the true Young’s modulus of crystalline-amorphous multilayers by means of nanoindentation. We used 1 µm thick multilayers comprised of amorphous CuZr and nanocrystalline Cu. All films were deposited onto two rigid substrate types with Young’s moduli below and above the ones expected for the deposits (film-to-substrate hardness and elastic moduli ratios between 0.3 to 1.1 and 0.6 to 1.5, respectively). Linear extrapolation of indentation data to zero indentation depth allows to precisely determine the real film’s Young’s modulus. Same investigations were performed on monolithic Cu and CuZr films of same thickness. While the hardness values change with the variation of the bilayer thickness of the multilayer structures, the Young’s modulus is not affected by the interfaces.

Graphical abstract
Synthesis and characterization of polyurethane films based on castor oil-derived polyols with heparin and low-molecular-weight chitosan for cardiovascular implants
Authors: Uscátegui Maldonado Yomaira Lisnedy , Díaz Barrera Luis Eduardo , Valero Valdivieso Manuel Fernando , Coy-Barrera Ericsson 
Published: June 2023

AbstractApplications of polyurethanes (PUs) depend on several physicochemical factors due to the presence of varied monomers involving several ratios. The present study aimed to synthesize various chitosan/heparin-inserted PUs to examine the addition effect on the mechanical and biological properties of the PU-based polymeric material. The PUs were synthesized from unmodified castor oil and isophorone diisocyanate, including chitosan and heparin as fillers. The FTIR, thermal, and mechanical characterization of materials with and without fillers exhibited properties that can be considered within the accepted values. In addition, considering the non-cytotoxicity and antibacterial activity, these synthesized polymers can be exploited as biomaterials. The results also showed that these PUs offer a competitive advantage over other materials since the observed good mechanical and biological properties were found to be within the optimal range for the biomaterial design to myocardial or vascular tissue engineering.
Graphical abstract
Aile ve Dini Rehberlik Bürolarına Yapılan Başvurular Bağlamında Ailede Ortaya Çıkan Sorunların Analizi: İstanbul Örneği
Authors: KAŞDİBİ Ahmet 
Published: June 2023

Toplumların varlığı ve devamı açısından en önemli kurum olan aile, özellikle son 50 yılda geçirmiş olduğu dönüşümler nedeniyle tarih boyunca görülen en büyük çözülmeyi yaşamaktadır. Bu nedenle, günümüz hukuk sistemleri, ailede ve özellikle eşler arasında yaşanan çatışma ve anlaşmazlıkların sonlandırılması için farklı arabuluculuk yöntemleri geliştirerek ortaya çıkan sorunlara çözüm arayışına girmiştir. Hukuki normların yanında dini ve ahlaki ilkeler temelinde uygulanan çözüm yöntemleri de geçmişte olduğu gibi günümüzde de kullanılmaktadır. Bu açıdan bu çalışmada İslam temelli ilkeler doğrultusunda aile içi ve özellikle eşler arası sorunlarda dini danışmanlık faaliyetleri yürüten Aile ve Dini Rehberlik Bürolarına yapılan başvurular İstanbul örneklemi bağlamında ele alınmıştır.
Araştırmada 2016-2021 yılları arasındaki 5 yıllık süreç içerisinde İstanbul genelindeki Aile ve Dini Rehberlik Bürolarına yapılan başvurular ele alınmıştır. 2016-2021 yılları arasında İstanbul’daki bürolara yapılan başvurular incelendiğinde, “aile, çocuk, evlilik-nikâh-boşanma, genç, kadın, sağlık ve sosyal durumlar” şeklinde ana başlıklara ayrıldığı görülmüştür. Başvurular arasında en fazla başvuru 6328 adet ile “evlilik-nikâh-boşanma” ana başlığında olmuştur. “Aile” ana başlığı 5369 adet başvuru ile ikinci sırada yer almış, onu 1500 başvuru adedi ile “sağlık” ana başlığı izlemiştir. “Sosyal Durumlar” ana başlığı ise toplam 186 başvuru ile son sırada yer almıştır. Çalışmada bu ana konular ve alt başlıkları incelenerek bazı veriler ışığında değerlendirmeleri yapılmıştır. Yine bu çalışmada, Diyanet İşleri Başkanlığı Aile ve Dini Rehberlik Büroları Çalışma Yönergesi çerçevesinde bu büroların çalışma esaslarına, büroların misyonuna ve dini danışmanlara yönelik önerilere yer verilmiştir.
Bu çalışma ile ayrıca, Aile ve Dini Rehberlik Bürolarında faaliyetleri yürüten din görevlilerinin aile içi ve özellikle eşler arası sorunların çözümüne yönelik olarak başvuru yapanlara katkılarının neler olabileceğine dair tespitlerin yapılması amaçlanmıştır.
COMPETITIVENESS OF POLISH DAIRY PRODUCTS IN THE OPINION OF MANAGERIAL PERSONNEL
Authors: Borawski Piotr , Bełdycka-Bórawska Aneta , Parzonko Andrzej , Rokicki Tomasz , Holden Lisa 
Published: June 2023

In this paper we aim to recognize competitiveness of Polish dairy products by surveying managerial personnel in dairy companies. The opinions of dairy plant managers on dairy product diversification constitutes a valid research problem. The study was conducted in 100 dairy companies in Poland in 2021. An online questionnaire was initially designed for surveying all dairy plants in Poland (163). However, the survey proved to be problematic, and the study was ultimately carried out with the personal involvement of the research team. The results were processed and presented with the use of tabular, graphic, and descriptive methods. To check if COVID-19 pandemic had impact on competitiveness we used the logit model.
The respondents evaluated dairy products, variations in product prices, determinants of product success, product-related activities, and other factors. Dairy products received the highest scores for quality, demand, and brand on a scale of 1-5 points. Production, marketing, and reputation were regarded as the key determinants of market success.. We wanted to recognize which factors decrease the negative impact of COVID-19 in Polish dairy enterprises. We found that it was ease of shopping, use of transport companies and competition in the sector.
PENINGKATAN PEMAHAMAN SISWA KELAS 5 SDN TAWANGREJO TERHADAP KONSEP PERUBAHAN WUJUD BENDA MELALUI PENERAPAN PBL (Problem Based Learning)
Authors: Marliana Friska , Tryanasari Dewi , Rumiyati Lilik 
Published: June 2023

This study aims to improve the understanding of 5th-grade students at SDN Tawangrejo regarding the concept of changes in the states of matter through the implementation of Problem-Based Learning (PBL). PBL is used as a learning approach that encourages students to actively seek solutions to given problems. The study involved 18 5th-grade students as research subjects. The research adopted the Classroom Action Research (CAR) approach, consisting of four stages: planning, action, observation, and reflection. During the action stage, the teacher introduced the concept of changes in the states of matter through relevant real-life problem scenarios. The students were then assigned to work in groups, analyze the problems, gather information, and develop solutions. This process was supported by facilitation and guidance from the teacher. The results of the study show that the implementation of PBL significantly improves students' understanding of the concept of changes in the states of matter. There is a significant improvement in students' ability to identify changes in the states of matter, understand the factors influencing these changes, and explain the process of changes in the states of matter more comprehensively. Additionally, the students demonstrated more active participation in the learning process and improved teamwork skills. This research recommends that teachers and schools utilize the PBL approach in teaching the concept of changes in the states of matter. The implementation of PBL can enhance students' understanding and facilitate the development of collaboration and problem-solving skills. The study also emphasizes the importance of connecting learning to everyday life contexts to help students recognize the relevance of the material being taught
Keywords: Increased understanding, Concept of changes in states of matter, PBL (Problem Based Learning)
PENGARUH PEMBERIAN REWARD PADA MATA PELAJARAN MATEMATIKA KURIKULUM MERDEKA TERHADAP HASIL BELAJAR PESERTA DIDIK KELAS IV
Authors: Trimukti Mahanani Rahma , Restian Arina , Supradana Arif 
Published: June 2023

ABSTRACT
The purpose of this research was to determine the effect of giving rewards in the mathematics subject of the Independent Curriculum on the learning outcomes of fourth grade students. This type of research is classroom action research. Data collection techniques using the method of observation, documentation, and tests. While the data analysis technique uses a qualitative descriptive analysis technique. The results of this study indicate that there is an increase in the learning outcomes of mathematics in the Independent Curriculum after giving rewards, in the first cycle the learning completeness scores reach 35.7%, in the second cycle the learning completeness scores reach 60.7% 85.8% have finished studying.
Keywords: rewards1, mathematics lessons2, Independent Curriculum3, learning outcomes4
ABSTRAK
Tujuan penelitian ini adalah untuk mengetahui pengaruh pemberian reward pada mata pelajaran matematika Kurikulum Merdeka terhadap hasil belajar peserta didik kelas IV. Jenis penelitian ini adalah penelitian tindakan kelas. Teknik pengumpulan data menggunakan metode observasi, dokumentasi, dan tes. Sedangkan teknik analisis data menggunakan teknik analisis deskriptif kualitatif. Hasil penelitian ini menunjukkan bahwa terdapat peningkatan hasil belajar matematika Kurikulum Merdeka setelah pemberian reward, pada siklus I nilai ketuntasan belajar mencapai 35,7%, pada siklus II nilai ketuntasan belajar mencapai 60,7% sudah tuntas belajar, pada siklus III nilai ketuntasan belajar mencapai 85,8% sudah tuntas belajar.

Kata Kunci: reward1, pelajaran matematika2, Kurikulum Merdeka3, hasil belajar4
PENGARUH MEDIA STORYJUMPER TERHADAP KETERAMPILAN MEMBACA PEMAHAMAN SISWA KELAS II SEKOLAH DASAR
Authors: Hafna Auliya Resa , Zulikhatin Nuroh Ermawati 
Published: June 2023

Penelitian ini bertujuan untuk mengetahui pengaruh media storyjumper terhadap keterampilan membaca pemahamn siswa kelas II SD Muhammadiyah 1 Candi Sidoarjo. Keterampilan membaca siswa masih dibawah rata-rata karena siswa hanya memahami materi secara teoritis tanpa menggunakan media pembelajaran. Oleh karena itu beberapa siswa kurang termotivasi untuk berpartisipasi dalam pembelajaran. Penelitian ini merupakan penelitian eksperimen dengan menggunakan One Group Pretest Postest. Populasi dalam penelitian ini adalah seluruh siswa SD Muhammadiyah 1 Candi Sidoarjo dengan sampel kelas II sebanyak 30 siswa yang diperoleh dengan menggunakan teknik random sampling. Teknik analisis data menggunakan statistik deskrptif meliputi uji validitas, reabilitas, normalitas dan homogenitas. Pengujian hipotesis menggunakan uji Tpaired. Hasil pengujian hipotesis dengan menggunakan uji-t menghasilkan nilai sig sebesar 0,000. Karena nilai sig 0,000 < 0,05 maka H1 ditolak. Dapat disimpulkan bahwa media storyjumper berpengaruh terhadap keterampilan membaca pemahaman siswa kelas II SD tema 7 subtema 1.
Kata kunci: Media Storyjumper, Keterampilan Membaca Pemahaman
Sentence to serfdom. Review of the book: Dolgikh A. N. "Tinderbox under the state": ways of solving the peasant question in Russia in the epoch of Nicholas I. Historiographical essays. Lipetsk: lgpuim. Semenovtyan-shansky, 2022. 478 p.
Authors: Lyapin D. 
Published: June 2023

Introduction. The article is devoted to the review of the book of Doctor of Historical Sciences Professor Arkady Dolgikh about the history of serfdom. Today, the agrarian theme is one of the most important topics for understanding the historical process that has taken place on the territory of the Russian state since the formation of the Muscovite state in the 15th-16th centuries. and up to the 20th century.Materials and methods. The technique of the article is connected with the analysis of the article from general historical positions. The fundamental importance of the question of serfdom lies in the fact that this phenomenon has dragged on considerably. Obviously, it interfered with the full development of Russia, turning most of its population into a mass, devoid of any interest in the results of their own work, which means that it formed entire generations of people deprived of an active life position with a low level of political culture and education.Results. There is no doubt that the reforms carried out by Peter I, which almost completely subordinated all the estate groups of the country to the interests of the state, needed to be adjusted after the end of the Northern War and the introduction of a new poll tax. The ruling circles of Russia, for the most part, were aware of the importance of this adjustment and the danger of stagnation of the serf regime, but until 1861 no one dared to do this due to various subjective and objective reasons. As a result, literally every year a real ―powder magazine‖ grew and increased in size under the building of the House of Romanov, which not only interfered with the full development of their state, but also doomed it to death.Conclusion. The author of the review comes to the conclusion that the new book on serfdom shows the importance of this problem and once again reminds the reader of this phenomenon as a terrible evil hindering the development of Russia.
ANALISIS STUDI KASUS KRISIS KETERSEDIAN AIR MUSIM KEMARAU DALAM UPAYA MENANGGULANGI PADA MASYARAKAT DI DESA BUTUH
Authors: Puspitasari Nila Rayi 
Published: June 2023

Air merupakan sumber kehidupan yang harus ada pada kehidupan manusia Krisis ketersediaan air yang banyak melanda diakibatkan bencana kekeringan dari musim kemarau. Kekeringan diartikan salah satu bencana yang terjadi secara perlahan-lahan akibat perubahan pola cuaca yang berlangsung lama. Suatu Desa yang terletak di Kabupaten Kediri yakni Desa Butuh mengalami bencana kekeringan. Upaya yang harus dilakukan dapat membantu mengurangi dampak akibat dari bencana perubahan iklim yang ekstrim. Jadi, artikel ini dipergunakan untuk menambah wawasan dalam upaya dan solusi yang dapat dilaksanakan. Responden dalam penelitian sebanyak enam belas responden dengan sepuluh orang responden yang mengalami musim kemarau, lima orang mendatangi rumah masing-masing untuk observasi. Hasil analisis yang penulis lakukan melalui wawancara menghasilkan suatu proses yang dilakukan masyarakat dengan pengeboran sumur serta lima orang yang menggunakan sumur timba. Tetapi, jika pengeboran sumur dengan cara membuat kedalaman lubang tanah terus berlanjut dapat mempunyai dampak yang berbahaya bagi lingkungan. Sehingga, penulis memberikan solusi yang lain dengan cara pembuatan biopori di setiap rumah.
Kata kunci: Air, Kekeringan, Pengeboran Sumur
Desain dan Uji Coba Media Motion Comic Berbasis SETS (Science, Environment, Technology, Society) pada Materi Asam Basa
Authors: Utami Lisa , Uci Nornasari1  , Uci Nornasari1  
Published: June 2023

This research aimed at designing SETS (Science, Environment, Technology, Society) based Motion Comic media on Acid Base lesson valid based on the validation by the experts of material and media, teacher practicality and student response. It was R&D (Research and Development) with 4-D development model. It was conducted at State Senior High School 01 Kampar Kiri Tengah to the eleventh-grade students of Natural Science 3. Motion Comic media could be stated proper, if it completed the valid and practical aspects. Validity could be seen from the result of validation by using validation sheet. The validation result percentage by the expert of material overall was 92.22% with very valid criterion. The validation result percentage by the expert of media overall was 82.85% with very valid criterion. Teacher practicality test was conducted to 2 teachers, and the result was 85.71% with very practical criterion. Student response was obtained from 12 students, and the questionnaire result was 84.64% with very good criterion.