bluuebunny/crossref_metadata_2025 huggingface dataset:
Putting the Price on Privacy: Decommodifying Data with the Fiduciary Model
Authors: Bank Talia
Published: May 2024

Engaging with the internet and digital technologies is more invasive than ever before and the platforms that make it so have weaponized the law to shield themselves from the consequences of their exploitative business models. Federal data privacy laws in the U.S. are woefully inadequate and no law currently regulates private sector data collection and commodification, a process that undermines transparency, privacy, autonomy, and democracy itself. But the information economy does not operate in a lawless space; rather, it is the product of legal innovations and political maneuvers on the part of platforms during the early development of the digital age. Data propertization as a tool for ensuring privacy protections, if enacted at the national level, would be a continuation of that harmful legacy. The information fiduciary model is a promising alternative and presents a real opportunity to not only protect user privacy, but to also restructure the information economy towards greater transparency and greater responsiveness to user interests.
Appropriation of Civil Society: A Tool for Aspiring Autocrats
Authors: Martinez Rodriguez Giovanny
Published: May 2024

Civil society (CSOs) is usually understood as a necessary variable to promote democracy and challenge authoritarian regimes. In this essay, however, I will argue that in weakly institutionalized democracies, appropriation of civil society is a tool used by aspiring authoritarian leaders to obtain and maintain political power. In contrast to traditional literature, I found that the mere existence of a strong civil society does not promote democratic values. Instead, without autonomy from political parties and the state, it will support an authoritarian agenda. I defined and contextualized the concept of civil society both as a general construct in politics and its meaning in Latin America. Then, I defined appropriation as a tool used by authoritarian leaders to remove CSOs autonomy and political influence. I use Venezuela as my case study, and found evidence for my thesis.
Electromotive Forces on Multitier Instruments (EFoMI): Development to measure student misconception with Rasch
Authors: Eliya Meisy , Purwianingsih Widi , Supriatna Asep , Samsudin Achmad , Aminudin Adam Hadiana , Mardiana Mardiana
Published: May 2024

This research aims to develop Electromotive Forces on Multitier Instruments (EFoMI) in measuring student misconceptions. Method: This development research uses 4D design. Participants in this research were 19 students (10 Females and 9 Males) in one of the Bandung junior high schools. The instruments used are those developed in this research. The Rasch analysis was used to identify the feasibility of EFoMI using WINSTEPS 4.4.5 software which had previously been included in the conceptual categories of Sound Understanding (SU), Partial Positive (PP), Partial Negative (PN), No Understanding (NU), Misconception (MC), and No Coding (NC). Meanwhile, VOSviewer analysis was carried out to look for research trends related to misconceptions. Results: The results show the construct validity and fit statistics which meet all criteria. the reliability of EFoMI, namely 0.82, is in the Very Good category. The difficulty level of EFoMI is evenly distributed, the discrimination in the Very Good category, and no gender bias was detected from EFoMI. The distribution of students' conceptions includes SU= 12%, PP= 4%, PN= 45%, NU= 7%, MC= 27%, and NC=4%. These results have several implications in the field of education. An example is EFoMI's success in identifying student misconceptions, thus it can be an alternative for teachers in developing or identifying student misconceptions. Then, by knowing students' initial conceptions, teachers can develop learning tools that are more focused on student misconceptions and based on data. Likewise, to develop or use teaching materials more effectively by knowing the areas where students often experience misconceptions.
Teaching environment and sustainability: Experiences of a Vietnamese educator living in Canada
Authors: Tran Thi Thuy Hang
Published: May 2024

This research aims to address the question of whether Environment and Sustainability Education (ESE) is sustainable or not, considering the author's experiences as a lecturer in environmental sustainability programs in Vietnam and as a researcher/educator in a teacher education program in Canada. This study employs an autobiographical narrative approach rooted in experience. This study delves into the three-dimensional narrative spaces of temporality, sociality, and place to understand personal experiences and envision future narratives for international environmental sustainability education. Through this research, it is found that integrating teaching and training programs, familial curriculum making, and the sustainability of multi-species flourishing are holistic and long-term approaches to teaching environmental sustainability. The findings of this research highlight the importance of engaging various stakeholders in a wide-ranging collaborative process to discuss, debate, and analyze past and current pedagogical practices, as well as structural, programmatic, and economic challenges faced in environmental and sustainability education. Additionally, this research emphasizes the need to broaden perspectives by including the voices of Vietnamese educators teaching and conducting research in Canadian education.
Problem Based learning (PBL) as an effective solution to enhance understanding of physics concepts: Systematic literature review
Authors: Ayu Hena Dian , Chusniyah Dina Asmaul , Kurniawati Mega Putri , Purwanti Putri Festiana , Lukitawanti Sartika Dewi , Putri Amelia Nurdevianti
Published: May 2024

Understanding physics concepts remains a focal point of education, continually researched and sought for appropriate solutions, especially in teaching strategies. The teaching strategies employed vary greatly in influencing students' understanding of concepts. The aim of this research is to identify effective solutions in enhancing students' understanding of physics concepts, based on data obtained from various relevant journals from 2010 to 2022. This study was conducted using the Systematic Literature Review (SLR) method, utilizing databases such as ERIC, Journal of Education Research, British Education Journal, and other journals indexed by SINTA to identify, review, evaluate, and interpret available research. The results indicate that an effective teaching strategy to enhance students' understanding of concepts is Problem-Based Learning (PBL).
Assessing the efficacy of two modes of digital learning object package on students’ achievement and interest in rocket and satellite in post covid’19 era
Authors: Ogundeji Oluwatomisin Marvellous
Published: May 2024

This paper examines the efficacy of two modes of digital learning object package on students’ achievement and interest in rocket and satellite in post covid’19 Era. The study adopted Quasi-Experimental research design. A sample of 132 SS3 physics students selected using purposive sampling technique. The instruments used for data collection were Rocket and Satellite Achievement Test (RSAT) and Students Interest Questionnaire (SIQ) developed by the researchers. The reliability coefficient indices of 0.88 and 0.83 for RSAT and SIQ were obtained using Kuder-Richardson 20 (KR-20) formula and Cronbach Alpha. The data obtained were analyzed using mean and standard deviation to answer the research questions and analysis of covariance (ANCOVA) to test the Null hypotheses. Findings revealed that DLO with tutor-led instructional model significantly promotes students’ achievement and interest in rocket and satellite compared to DLO self-paced instructional model. Gender had some influence on physics students’ achievement and interest in Rocket and Satellite but not statistically significant. Based on the findings it was recommended amongst others that: Physics teachers should adopt the use of DLO with Online teaching packages (especially using, tutor-led instructional model) to enhance students’ achievement and interest in the Rocket and Satellite.
Chemistry: The Science Behind Common Products
Authors: Shukla Dr. Yamini
Published: May 2024

Chemistry plays an important role in the creation, functionality as well as and betterment of the numerous products that permeated our daily lives. This clause delves into the complex chemic processes and principles that corroborate normal folk items as well as ‘ inward care products, and quotidian consumables. By examining the unit composing and reactions involved in cleaning agents, cosmetics as well as ‘ pharmaceuticals, and food products, we expose how alchemy not only enhances their efficaciousness but also ensures their recourse and sustainability. The exploration includes a word on the role of surfactants in detergents, the expression of efficacious and safe inward care items, the conservation and nutritional value of food finished chemic additives, and the advancements in pharmaceuticals that meliorate wellness outcomes. Additionally, the clause highlights the grandness of green alchemy in developed environmentally informal products and reducing the ecologic step of consumer goods. Through this all encompassing analysis, we aim to allow a deeper hold of the base role alchemy plays in our quotidian lives as well as driving base and improving type of life while promoting sustainability and safety.
La dimensión temporo espacial del trabajo frente a la coexistencia de paradigmas
Authors: Melendi Julieta
Published: May 2024

En este ensayo analizamos la coexistencia paradigmática en el mundo laboral. Siguiendo el modelo matemático que considera al tiempo y al espacio como dos dimensiones inescindibles, lo traspolamos a las relaciones del trabajo, poniendo de resalto cómo el trabajo trasciende el tiempo y el espacio de la persona trabajadora. Así pues, exploramos la adaptabilidad laboral, la formación continua, la reducción de la jornada laboral, la conciliación entre el trabajo y la vida familiar, la igualdad de oportunidades y la economía globalizada de 24 horas. El análisis cobra relevancia para comprender y adaptarse a los cambios en el tiempo y el espacio laboral abordando los desafíos actuales y promoviendo un desarrollo sostenible. Finalmente, cavilamos que nos hallamos frente a un periodo de coexistencia paradigmática, en el cual el paradigma primigenio no es dejado de lado y sustituido por el nuevo completamente, sino que conviven hasta que se acredite el éxito del novel de tal forma que sea aceptado por unanimidad.
Umur, Anemia Dan Paritas Sebagai Faktor Kejadian KEK Di Wilayah Kerja Puskesmas Kelayan Dalam
Authors: Suryanto Deni
Published: May 2024

Pendahuluan: Dilihat dari kunjungan ibu hamil ke Puskesmas Kelayan Dalam dan Posyandu pada tahun 2021-2022, terjadi peningkatan ibu hamil KEK. Tujuan: untuk mengetahui hubungan umur, anemia, dan paritas sebagai faktor kejadian KEK. Metode: Metode penelitian ini adalah kuantitatif dengan pendekatan cross sectional, menggunakan kuesioner dan metode penelitian survei. Teknik pengambilan sampel dengan Sampel Probility Sampling Variabel dalam penelitian ini meliputi Kekurangan Energi Kronik (KEK), umur, anemia dan paritas pada ibu hamil.dengan responden berjumlah 50 orang. Cara analisis data, yakni dengan teknik analisis univariat dan bivariat. Hasil: didapat p-value=0,034 antara umur dengan KEK, p-value=0,240 antara anemia dengan KEK, dan p-value=0,211 antara paritas dengan KEK. Kesimpulan: Ada hubungan umur dengan kejadian KEK pada ibu hamil, tidak ada hubungan anemia dan paritas dengan kejadian KEK pada ibu hamil di wilayah kerja Puskesmas Kelayan Dalam. Diharapkan tenaga Kesehatan melakukan kunjungan ke rumah sehingga ibu hamil bisa terpantau dalam penerapan di kehidupan sehari hari. Perlu adanya penelitian lanjutan mengenai kejadian KEK seperti dukungan suami, pekerjaan dan pencegahan KEK.
Hubungan Gaya Kepemimpinan Kepala Ruangan dan Lingkungan Kerja dengan Kinerja Perawat Ruang Rawat Inap di RSUD Pringsewu
Authors: Aisyah Siti , Elasari Yunina , Martalena Yeni , Surmiasih
Published: May 2024

Latar Belakang: Kinerja perawat yang baik merupakan jaminan kualitas pelayanan kesehatan yang diberikan terhadap pasien yang baik yang sakit maupun sehat. Melalui kinerja perawat diharapkan dapat menunjukkan kontribusi profesionalnya secara nyata dalam miningkatkan mutu pelayanan keperawatan, yang berdampak pada pelayanan kesehatan, dan dampak akhir pada kualitas hidup dan kesejahteraan Masyarakat. Kinerja perawat salah satu rumah sakit Provinsi Lampung masih mendapatkan nilai cukup dalam melakukan komunikasi dan komplain pasien. Gaya kepemimpinan kepala ruangan mempengaruhi kinerja perawat karena menurut penelitian beberapa gaya kepemimpinan berkontribusi pada motivasi kerja perawat. Lingkungan kerja juga mempengaruhi kinerja perawat karena lingkungan kerja yang kondusif memungkinkan perawat lebih bersemangat dalam bekerja sehingga hasil kerja lebih memuaskan. Tujuan: Tujuan penelitian ini untuk mengetahui hubungan gaya kepemimpinan kepala ruangan dan lingkungan kerja dengan kinerja perawat di Rumah Sakit Umum Daerah Pringsewu. Metode: Penelitian ini menggunakan jenis peneitian kuantitatif dengan pendekatan cross sectional Populasi sebanyak 129 responden dengan sampel sebanyak 99 responden. Teknik sampling dengan cara purposive sampling. Analisis univariat menggunakan distribusi frekuensi dan analisis bivariat menggunakan uji gamma. Hasil: Hasil penelitian berdasarkan analisis univariat menunjukkan bahwa gaya kepemimpinan kepala ruangan mayoritas bergaya kepemimpinan baik sebanyak 74 (74,7%). Lingkungan kerja mayoritas memiliki kategori baik sebanyak 49 (49,5%). Kinerja perawat pelaksana mayoritas berkinerja baik sebanyak 79 (78,8%).  Analisa bivariat menggunakan uji gamma didapatkan p-value 0,000 (<0,05), menunjukkan ada hubungan antara gaya kepemimpinan kepala ruangan dan lingkungan kerja  dengan kinerja perawat di Rumah Sakit Umum Daerah Pringsewu. Simpulan: Diharapkan kepala ruangan dapat menerapkan gaya kepemimpinan dan lingkungan kerja yang sesuai agar dapat meningkatkan kinerja perawat di ruangan.
GESTÃO DA QUALIDADE EM SAÚDE: SERVIÇOS DE ATENDIMENTO PRÉ E PÓS-HOSPITALAR
Authors: Silva Machado Telma , Mello Costa De Liberal Marcia
Published: May 2024

As unidades hospitalares passaram a ter na última década uma nova visão de mercado buscando, através da qualidade da gestão na saúde, atender a aspectos como segurança do paciente e qualidade nos atendimentos. O objetivo principal desse artigo é demonstrar, por meio de uma revisão sistemática de sete artigos, as vantagens que a boa gestão de qualidade em saúde no ambiente hospitalar traz ao paciente, à equipe médica e à entidade, gerando mais qualidade na saúde, no atendimento, na prevenção de eventos adversos, na melhor capacitação da equipe médica e na geração de menor custo aos Hospitais. Os resultados foram analisados por meio da comparação dos artigos selecionados e procedimentos utilizados na Revisão Sistemática. Conclui-se que, há uma reflexão urgente sobre o papel dos gestores nas unidades hospitalares. A cultura de gestão em saúde pode e deve ser aplicada em todos os modelos de hospitais e sua aplicação traz inúmeros benefícios que ainda necessitam de melhores estudos para poderem ser mensurados.
المكان الأخر في الرواية العربية
Authors: م. جعفر احمد عبدالله م. جعفر احمد عبدالله
Published: May 2024

الملخص:
يفترق المكان الأجنبي عن المكان العربي بانفراد بيئته وخصوصيته عنه اجتماعياً وثقافياً وجغرافياً، وان كان البعض يجمع على تسمية المكان الخارج، إلّا أنّ تشّكل المكان واشكاله في الروايات كشف عن ندرته وحضوره حتى غدا مكاناً له بؤرة تحتضن هيئته معمارياً وجغرافياً وهندسياً، والمكان الأجنبي هو المكان الذي له وجوده في بيئته الأجنبية، ولا يتماثل أو يتطابق مع المكان العربي لا من الناحية العمرانية أو الاجتماعية، يتشكل بطبيعة البيئة الغربية وتأثيراتها عليه تاريخياً أو واقعياً وحتى اسطورياً.
وقد اطلقنا عليه المكان الآخر، لأنه مكان مغاير، ولعل غالبية الروايات قديمها وحديثها اهتمت بالمكان العربي وافردت له عناية خاصة، وبالرغم من أن البعض أفرد للمكان الآخر قراءة ونقداً، إلّا أنّه لم ينهض على رؤية نافذة معمّقة كما سيأتي في الروايات قيد الدراسة فقد وجدنا حضور الشخصية العربية ومدى تفاعلها معه، وجسّد المكان الآخر قرائن مرجعية لبعض الأماكن التي لها خصوصيتها في الذاكرة (ذاكرة الشخصيات والتي تنثال مستدعية الاماكن العربية)، لذا تناغم المكان الآخر مع تداعيات الذاكرة، فالتحم المكان الذاكرة في بؤرة متنفّذة، وهذا غير فرادة المكان الأجنبي بوصفه بيئة الشخصية العربية والغربية على حد سواء.
توظيف المرجعيات في الرواية النسوية مقاربة تنظيرية
Authors: د. جاسم خلف الياس د. جاسم خلف الياس
Published: May 2024

الملخص العربي
ينهض هذا البحث على كشف المرجعيات الثقافية في الرواية النسوية عبر تمثيلها لواقع معين اعتمادا على مقتضيات جمالية، وخصائص أجناسية يتفاضل فيها كل سرد روائي عن غيره. إذا ترتبط المرجعيات - بوصفها مكونات نصية – باشتراطات فنية تبلور النص الكلي للرواية عبر بنى فرعية تضبط حركة النص وتطوره.  وعلى الرغم من أن أسئلة الدرس النقدي الروائي كثيرة ومتشعبة، إلا أن ذلك لا يحجب الانفتاح على ما تراكم من دراسات، لا سيما وأن الخطاب الروائي قابل لمزيد من الدراسات والبحوث والمقاربات؛ وذلك لتوسع المنتج الإبداعي في هذا النوع الأدبي الذي أحذ يستجيب لرؤى العصر، بما تنطوي على تلك الرؤى من تقدم وتطور. وتتعدد المرجعيات وتتنوع حسب توظيف الروائية لها، فهناك مرجعيات دينية، ومرجعيات ثقافية، ومرجعيات تاريخية .... وغيرها.
A Critical Review of Academic Vocabulary in Use: Vocabulary reference and practice self-study and classroom use
Authors: Reviewer: Lect . Dalal Munther Faraj Reviewer: Lect . Dalal Munther Faraj
Published: May 2024

Abstract
The present book review introduces to the readers the main issues in the book, which are valuable to their educational goals. It helps to provide an objective evaluation of the contents of the book, its strengths and weaknesses, and explains how the book achieves its goals effectively. It critically presents an overview of this book, Michael McCarthy’s and Felicity O’Dell’s Academic Vocabulary in Use: Vocabulary reference and practice Self-study and classroom use. It is divided into units, sections, exercises and key answers, beside six reading texts; they all highlight the importance of contextual vocabulary to learners, scholars, and academics to achieve the appropriate way of writing and presenting texts in English. Due to the importance of the book, it can be recommended to be a teacher's guide to teaching essay writing at English departments.
Анализ фитопатогенов, связанных с семенами тыквенных культур
Authors: Словарева О.Ю. , Бондаренко Г.Н.
Published: May 2024

Целью работы являлось формирование списка вредных организмов, связанных с подкарантинной продукцией – семенами тыквенных культур, и проведение его систематизации и категоризации. Проанализированы данные о товарообороте продукции и собрана информация, на основании которой создан список связанных с тыквенными культурами вредных организмов. Проанализировано 144 фитопатогена, среди которых 60 представителей грибов и хромист, 24 бактерии и фитоплазмы, 60 вирусов и вироидов. Установлено, что с семенами тыквенных культур непосредственно связано 23 вида вредных организмов – 13 видов грибов, 4 вида бактерий и 6 видов вирусов. Исходя из фитосанитарного статуса и географического распространения, выделено 3 категории вредных организмов, связанных с семенами тыквенных культур. В первую категорию вошли регулируемые виды, имеющие карантинное значение для Российской Федерации, – 1 бактерия и 2 вируса. Во вторую категорию – присутствующие в РФ виды вредных организмов, не регулируемые Единым перечнем карантинных объектов ЕАЭС, – 11 грибов, 3 вида бактерий и 1 вирус. В третью – отсутствующие в РФ виды вредных организмов, не регулируемые Единым перечнем карантинных объектов ЕАЭС, – 2 вида грибов и 3 вируса. Формирование категории не регулируемых и не распространенных в РФ видов является итогом одного из этапов оценки фитосанитарного риска, связанного с исследуемой подкарантинной продукцией, а виды, вошедшие в категорию, подлежат тщательному изучению на предмет необходимости их контроля. Таким образом, проведены формирование списка фитопатогенов, передающихся семенами тыквенных культур, его систематизация и категоризация.
Dunia Cyber, Sarana Kekuasaan dan Produksi Pengetahuan Baru
Authors: Moses Robertus
Published: May 2024

The theme of power is always relevant for our discussion. Understanding the face of power, however, tends to change from time to time. In this modern age, with the development of technological devices, power has undergone a shift of understanding as well. Power is not only in the real world, but also runs in the cyber world by certain parties. Manipulation of power, as initiated by Michel Foucault, is increasingly prevalent in the cyber world. Through the cyber world, the governmental institutions in power are increasingly sophisticated. Power is increasingly difficult to identify the shape and face. Who is the master of technology, he is the one who has the power, he is the new ruler. The manipulation of the truth of knowledge produced by the rulers is also the more we receive. The rulers are regarded as the true source of knowledge, although knowledge is a lie or a manipulation. The writer argues, in order to build a good power, it takes the spirit to escape from instant culture and to foster an integral spirit in the social media that includes the environment, social and spiritual realm.
Paroki, Wadah Perjumpaan Antarbudaya
Authors: Adicahyo Agustinus Lintang , Pramudita Nicolas Gerardus Dimas
Published: May 2024

Dalam tulisan ini, penulis mencoba untuk lebih mendalami makna persatuan dalam jemaat paroki, karena semakin menjadi tempat perjumpaan antarbudaya. Dengan cara ini, penulis juga ingin menawarkan beberapa ide untuk para imam paroki, dewan paroki, dan jemaat Kristen itu sendiri, terutama dalam menghadapi interkultural, di mana umat Allah dari berbagai latar belakang bertemu. Lalu apa yang harus diperhatikan dalam membangun komunitas paroki yang sejahtera? Penulis menggarisbawahi pentingnya kompetensi antarbudaya bagi anggota masyarakat untuk mewujudkan dua karakter utama Gereja, yaitu kesatuan dan katolik.
Pendampingan Pastoral Bagi Umat yang Kawin - Cerai - Kawin Lagi
Authors: Sujianto Paulus
Published: May 2024

Berdasarkan temuan-temuan penelitian kualitatif, artikel ini mengkaji pelayanan pastoral bagi pasangan yang menikah lagi dalam terang Seruan Apostolik Amoris Laetitia. Penelitian ini mengambil tempat di “Dekenat Malang Kota” (kecamatan eklesi kota Malang). Ini mencoba untuk mengeksplorasi kesadaran pasangan yang menikah lagi tentang status mereka dan berbagai masalah yang mungkin harus mereka atasi. Ini berfokus pada bantuan pastoral yang telah ditawarkan Gereja bagi mereka. Sampai batas tertentu, penelitian ini juga dimaksudkan untuk mengevaluasi praktik penggembalaan bagi pasangan yang menikah lagi di wilayah tersebut. Penulis berpendapat bahwa bantuan yang diberikan kepada mereka pada dasarnya ingin mengungkapkan kemurahan Tuhan. Oleh karena itu, Gereja diharapkan memperhatikan secara sungguh-sungguh segala aspek pelayanan pastoral bagi pasangan suami istri yang menikah lagi sebagai wujud kasih Allah.
PENGARUH BIAYA PRODUKSI TERHADAP PENDAPATAN PETANI BAWANG MERAH DI DESA TOLOKALO KECEMATAN KEMPO KABUPATEN DOMPU
Authors: Listiana Yovi Ayu , Subhan Ega Saiful , Mulyati
Published: May 2024

Penelitian ini menggunakan metode analisis Kuantutatif Deskriptif. Dengan judul Pengaruh Biaya Produksi Terhadap Pendapatan Petani Bawang Merah Di Desa Tolokalo, Kecematan Kempo, Kabupaten Dompu. Dengan tujuan untuk mengetahui Pengaruh Biaya Produksi Terhadap Pendapatan Petani Bawang Merah Di Desa Tolokalo. Analisis statistika deskriptif digunakan untuk mengetahui gambaran umum tentang variabel yang digunakan dalam suatu penelitian. Analisis statistika deskriptif ini memberikan gambaran suatu data yang dapat dilihat dari nilai minimum, maksimum, rata-rata, dan standard deviasi atas jawaban respondent dari setiap variabel. Dalam penelitian ini analisis yang digunakan adalah Regresi Linear Sederhana. Adapun sampel dalam penelitian ini sejumlah 92 orang yang semuanya ialah kelompok usaha tani bawang merah yang ada di Desa Tolokalo. Dari hasil analisis diketahui nilai R Square sebesar 0.778, nilai ini memiliki arti bahwa 77,8% pendapatan (Y) dipengaruhi biaya produksi (X) dan 22,2% dipengaruhi oleh faktor lain yang tidak termasuk dalam penelitian ini. Dan diketahui nilai sig untuk pengaruh X terhadap Y adalah sebesar .000 < 0.05, dari nilai thitung 17.641 > ttabel 1.66159 sehingga dapat disimpulkan bahwa terdapat pengaruh X terhadap Y. Hal ini di karenakan bahwa nilai thitung lebih besar dari pada nilai ttabel dan pengaruh X terhadap Y sangat signifikan, hal ini di karenakan nilai .000 lebih kecil dari 0.05.
Descripción, Funcionamiento y Futuras Aplicaciones de los Riblets como Método para Reducir las Fuerzas de Fricción
Authors: García Alonzo , Chan y Díaz Enrique , Gutiérrez Torres Claudia , Morales Contreras Oscar , Gomez Roa Antonio
Published: May 2024

El siguiente trabajo presenta los antecedentes históricos, el modelado teórico, el funcionamiento y el panorama actual del empleo de riblets como un método pasivo para la reducción del arrastre por fricción en flujos turbulentos. Se presentan también algunas explicaciones del mecanismo involucrado obtenidas desde diferentes perspectivas de estudio, y se plantea una aplicación relativamente nueva del método a cuerpos cuyos coeficientes de arrastre depende tanto de fuerzas de fricción como de fuerzas de presión.
Aplicación del Modelo del Agente Viajero en la distribución de especias
Authors: Maciel Monteón Marco , Gastelum Acosta Carlos , Luna Sandoval Gabriel , Santacruz Tirado Martin
Published: May 2024

Esta investigación presenta una aplicación real del modelo del agente viajero (TSP por sus siglas en inglés) para establecer la ruta de una red de distribución, buscando optimizar la distancia entre el proveedor y los clientes, de tal manera que impacte en los costos de distribución; dicha aplicación se lleva a cabo en una empresa distribuidora de especias ubicada en la ciudad de San Luis Río Colorado, Sonora, México. Los resultados de aplicar el modelo TSP permiten diseñar una ruta que minimice el recorrido y por consecuencia obtener ahorros financieros.
La gestión del cambio y la gerencia de proyectos, un enfoque de integración
Authors: Martínez Oropesa Ciro
Published: May 2024

El éxito de la integración de los procesos de gestión de proyectos con los de gestión de cambios aporta valor a las compañías, considerando que los esfuerzos de ambas especialidades se deben alinear en el logro de objetivos comunes, hasta mejorar la efectividad de todo el sistema. El objetivo de este artículo radica en determinar el nivel de involucramiento de los gestores de cambio y gerentes de proyectos en los diversos procesos de gestión del ciclo de vida de los proyectos desarrollados en tres empresas, dos de ellas pertenecientes al sector de la construcción y la otra al sector de manufactura. El artículo resalta similitudes y diferencias de gestión entre los gestores del cambio y gerentes de proyectos, reconociendo que los primeros se reconocen menos involucrados con los procesos de control de costos y las adquisiciones, con un mayor involucramiento en las comunicaciones, y los cambios a la cultura, mientras que los gerentes de proyectos muestran estar menos conectados con los cambios a la cultura.
Study of permeability and mechanical properties of concrete made with substitutions of recycled coarse aggregate: sustainable alternative
Authors: Rodriguez Rodriguez Margarita , Pellegrini Cervantes Manuel de Jesús , Corral Higuera Ramon , Arredondo Rea Susana , Castorena Gonzalez Jose , Fajardo San Miguel Gerardo , Peinado Guevara Hector Jose , Chinchillas Chinchillas Manuel
Published: May 2024

The use of recycled aggregates for the production of concrete is increasingly frequent, contributing to the preservation of the environment by reducing the consumption of natural aggregates. Unfortunately, the properties of concrete manufactured with recycled aggregate differ from those of conventional concrete, being the entrance of water and aggressive ions a determining factor in the durability of structures, thus making it important the study of their mechanical and permeable properties. In this work the resistance to compression and the permeability properties of concrete manufactured with the replacement of natural coarse aggregate. Therefore, adding 25% recycled coarse aggregate guarantees a performance similar to conventional concrete without compromising the durability of civil works, making the concrete manufactured with recycled coarse aggregate a viable alternative as a sustainable material to use in the construction industry.
Decorative Wreaths Assessment Using a Deep Learning Approach
Authors: Caballero Ramírez Diego , Baez Lopez Yolanda , Limon Romero Jorge , Tlapa Diego
Published: May 2024

The floriculture industry is an increasing sector in Baja California, that exports most of its production. Products like decorative wreaths depend mainly on human inspection, which has often been prone to human errors and challenges in meeting the quality criteria. Implementing advanced technologies and automated inspection methods in floriculture, aiming to eradicate human errors, seems to contribute to minimizing defective products and ensuring compliance with quality standards and export regulations. In this paper, we assess the YOLO implementation, a deep learning approach, in the defect identification process. Results show that accuracy ranges from 48.4% to 81.3% and MaP from 53.2% to 87.6% using ten epochs. This paper provides valuable evidence for future studies and implementations regarding deep learning approaches used to evaluate the visual characteristics in the floriculture industry.
Síntesis y caracterización de vidrio bioactivo 45S5 libre de alcóxidos obtenido por química suave
Authors: Chairez Ortega Manuel , Flores de Santiago Miriam , Adame Mota Daniela , Mota González María de la Luz , Carrillo Castillo Amanda
Published: May 2024

Los biomateriales empleados en la regeneración ósea son cerámicos, metálicos y aleaciones. Siendo los biomateriales cerámicos los reportados con mayor biocompatibilidad con el cuerpo, donde los métodos de síntesis de estos materiales comúnmente reportados requieren tecnología compleja, alto consumo de energía en procedimientos y tiempos prolongados de síntesis, por lo que se investigan métodos alternos. En esta investigación se desarrolló un vidrio bioactivo del tipo 45S5 (SiO2-CaO-Na2O-P2O5) por el proceso sol-gel a partir de la sustitución de alcóxido precursor de SiO tetraetil ortosilicado denominado TEOS por una sal. Además, se asistió con un tratamiento térmico con un horno de microondas de uso convencional. El vidrio bioactivo desarrollado en esta investigación presentó las proporciones elementales estimadas y estructura amorfa. La evaluación de la bioactividad del biomaterial se confirmó in vitro por medio de la inmersión en fluido fisiológico simulado en periodos de 7, 14 y 21 días y se corroboró la presencia de grupos fosfatos en la superficie del material.
Review of: George Steinmetz, The Colonial Origins of Modern Social Thought: French Sociology and the Overseas Empire (Princeton NJ: Princeton University Press, 2023).
Authors: Lebaron Frederic
Published: May 2024

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Phase-field simulation of high-temperature corrosion of binary Zr-2.5Sn alloy
Authors: Liu Xu-Xi , Gao Shi-Sen , La Yong-Xiao , Yu Dong-Liang , Liu Wen-Bo ,   Institute of Nuclear Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China,   Shaanxi Key Laboratory of Advanced Nuclear Energy and Technology, Xi’an Jiaotong University, Xi’an 710049, China
Published: May 2024

Due to the small neutron absorption cross section and excellent thermal creep performance, zirconium alloy is one of the most important cladding materials for fuel rods in commercial fission reactors. However, quantitative analysis of the effects of temperature and grain boundaries on the corrosion microstructure evolution of zirconium alloys is still needed. The establishing of a phase field simulation for the corrosion process of polycrystalline zirconium alloy and the systematical investigating of the thermodynamic influence are both very important. In this study, the phase field model of the corrosion process in zirconium alloys is developed by combining corrosion electrochemistry through calculating the interfacial energy at the metal-oxide and oxide-fluid boundaries. Then the model is used to investigate the uniform corrosion behavior on the surface of Zr-2.5Sn alloy, which demonstrates that the corrosion kinetic curve follows a cubic rule. Subsequently, the influence of temperature on the corrosion thickening curve of zirconium alloy is examined, and good agreement between simulation and experimental results is achieved. It is observed that during early stage of oxide layer formation, there is a high growth rate with minimal temperature dependence; however, as the oxide layer thickness increases, temperature becomes a significant factor affecting its growth rate, with higher temperatures resulting in faster corrosion rates. Furthermore, the effect of polycrystalline zirconium alloy matrices on corrosion rate is investigated, revealing that the grain boundaries accelerate oxide layer thickening due to enhanced oxygen diffusion rates. At metal-oxide interface, O2– bands are formed in areas with higher O2– concentration along these grain boundaries towards the metal matrix, which mainly influences oxidation-corrosion rate during the initial oxidation stage.
Proteogenomic analysis of air-pollution-associated lung cancer reveals prevention and therapeutic opportunities
Authors: Zhang Honglei , Liu Chao , Wang Shuting , Wang Qing , Feng Xu , Jiang Huawei , Xiao Li , Luo Chao , Zhang Lu , Hou Fei , Zhou Minjun , Deng Zhiyong , Li Heng , Zhang Yong , Su Xiaosan , Li Gaofeng
Published: May 2024

Air pollution significantly impacts lung cancer progression, but there is a lack of a comprehensive molecular characterization of clinical samples associated with air pollution. Here, we performed a proteogenomic analysis of lung adenocarcinoma (LUAD) in 169 female never-smokers from the Xuanwei area (XWLC cohort), where coal smoke is the primary contributor to the high lung cancer incidence. Genomic mutation analysis revealed XWLC as a distinct subtype of LUAD separate from cases associated with smoking or endogenous factors. Mutational signature analysis suggested that Benzo[a]pyrene (BaP) is the major risk factor in XWLC. The BaP-induced mutation hotspot, EGFR-G719X, was present in 20% of XWLC which endowed XWLC with elevated MAPK pathway activations and worse outcomes compared to common EGFR mutations. Multi-omics clustering of XWLC identified four clinically relevant subtypes. These subgroups exhibited distinct features in biological processes, genetic alterations, metabolism demands, immune landscape, and radiomic features. Finally, MAD1 and TPRN were identified as novel potential therapeutic targets in XWLC. Our study provides a valuable resource for researchers and clinicians to explore prevention and treatment strategies for air-pollution-associated lung cancers.
Positional Asphyxia: Remains Hard to Diagnose?
Authors: Ha Hongil , Aum Nahyun , Kim Han Na
Published: May 2024

Positional asphyxia is a type of asphyxia where the position of an individual compromises the ability to breathe. It is commonly caused by accidents due to alcohol or drug intoxication, diseases, and/or being in a confined space. In this study, the authors reviewed autopsy cases at their institute over the past 5 years where positional asphyxia is suspected as a contributing factor or cause of death. The autopsy cases (n=24) were divided into three groups: positional asphyxia was the cause of death (n=15); unknown cause of death but positional asphyxia was considered (n=4); and positional asphyxia was suspected to be a contributing factor (n=5). All cases of group A included postures that could interfere with breathing, but the typical jackknife or head-down postures were seen in approximately half of the cases; “classic signs of asphyxia” were also observed in approximately half of the cases. They shared features such as high blood alcohol concentration, therapeutic levels of drugs, various disease, minor head trauma, and morbid obesity; however, no definite diagnostic criteria have been established for forensic practice. Positional asphyxia is a form of mechanical asphyxia which must be differentiated from traumatic asphyxia. In addition to a complete autopsy, thorough laboratory tests and understanding of the circumstances of the case and the situation at the death scene are required for diagnosis. Special attention is required for the diagnosis of special types of positional asphyxia such as death during institutional restraint or prone restraint.
Fatal Nitrites Poisoning in the Medical Setting Filed as Alleged Medical Negligence or Malpractice and the Role of Death Investigation: A Case Report
Authors: Park Sohyung , Lee Young Man , Kim Dong Yeong
Published: May 2024

This study presents a case of a patient who experienced sudden death due to fatal nitrite poisoning in the medical setting. It also highlights the pivotal role of postmortem examination in enhancing quality assurance in clinical medicine, as well as in providing resolutions for medicolegal disputes to all pertinent stakeholders, regarding the patient’s death. The patient was found dead during admission after orthopedic surgery. The death certificate was issued by the clinician attributing the cause of death to respiratory failure due to pulmonary embolism. This medical certification of death instigated medicolegal disputes, resulting in allegations of medical negligence or malpractice. Subsequently, a death investigation was initiated, and a postmortem examination confirmed nitrite poisoning as the cause of death. This medical evidence obtained from the autopsy could provide clarity in resolving medicolegal disputes surrounding the patient’s unexpected death in a medical setting. Moreover, a comprehensive review of all information obtained through a death investigation could offer valuable insights even for clinicians, as well as for patient’s family and other stakeholders. This includes guidance on certifying the cause of death based on varying levels of medical evidence and implementing preventive measures to enhance patient safety and mitigate the occurrence of unexpected death in the medical setting.
A study on evaluation of english hybrid teaching courses based on AHP and K-means
Authors: Jia Hongchun
Published: May 2024

In hybrid English teaching, there are many courses and various kinds of assessment, which put higher requirements for teachers’ accurate and objective curriculum evaluation. This article adopts the clustering method of unsupervised learning to adapt to more data and give the evaluation method a specific generalization ability. A curriculum evaluation system based on AHP and clustering is proposed. Through hierarchical analysis values of online and offline average grades and final offline assessment scores, multiple hierarchical analysis is carried out, and the K-means method is adopted to refine course evaluation, and non-iterative calculation is carried out for non-deterministic numerical data to complete the final assessment of grades. Based on the sample test of the school’s data in recent years, this article finds that the proposed method can distinguish different categories of students well, and the absolute error of K-means classification is less than 0.5. The proposed method can ensure the accurate evaluation of colleges and universities and reduce teachers’ burden.
Efficiently handling constraints in mixed-integer nonlinear programming problems using gradient-based repair differential evolution
Authors: Molina-Pérez Daniel , Portilla-Flores Edgar Alfredo , Mezura-Montes Efrén , Vega-Alvarado Eduardo , Calva-Yañez María Bárbara
Published: May 2024

Mixed integer nonlinear programming (MINLP) addresses optimization problems that involve continuous and discrete/integer decision variables, as well as nonlinear functions. These problems often exhibit multiple discontinuous feasible parts due to the presence of integer variables. Discontinuous feasible parts can be analyzed as subproblems, some of which may be highly constrained. This significantly impacts the performance of evolutionary algorithms (EAs), whose operators are generally insensitive to constraints, leading to the generation of numerous infeasible solutions. In this article, a variant of the differential evolution algorithm (DE) with a gradient-based repair method for MINLP problems (G-DEmi) is proposed. The aim of the repair method is to fix promising infeasible solutions in different subproblems using the gradient information of the constraint set. Extensive experiments were conducted to evaluate the performance of G-DEmi on a set of MINLP benchmark problems and a real-world case. The results demonstrated that G-DEmi outperformed several state-of-the-art algorithms. Notably, G-DEmi did not require novel improvement strategies in the variation operators to promote diversity; instead, an effective exploration within each subproblem is under consideration. Furthermore, the gradient-based repair method was successfully extended to other DE variants, emphasizing its capacity in a more general context.
Advanced convolutional neural network modeling for fuel cell system optimization and efficiency in methane, methanol, and diesel reforming
Authors: Yalcin Sercan , Yildirim Muhammed , Alatas Bilal
Published: May 2024

Fuel cell systems (FCSs) have been widely used for niche applications in the market. Furthermore, the research community has worked on using FCSs for different sectors, such as transportation, stationary power generation, marine and maritime, aerospace, military and defense, telecommunications, and material handling. The reformation of various fuels, such as methanol, methane, and diesel can be utilized to generate hydrogen for FCSs. This study introduces an advanced convolutional neural network (CNN) model designed to accurately forecast hydrogen yield and carbon monoxide volume percentages during the reformation processes of methane, methanol, and diesel. Moreover, the CNN model has been tailored to accurately estimate methane conversion rates in methane reforming processes. The proposed CNN models are created by combining the 3D-CNN and 2D-CNN models. The Keras Tuner approach in Python is employed in this study to find the ideal values for different hyperparameters such as batch size, learning rate, time steps, and optimization method selection. The accuracy of the proposed CNN model is evaluated by using the root mean square error (RMSE), mean absolute percentage error (MAE), mean absolute error (MAE), and R2. The results indicate that the proposed CNN model is better than other artificial intelligence (AI) techniques and standard CNN for performance estimation of reforming processes of methane, diesel, and methanol. The results also show that the suggested CNN model can be used to accurately estimate critical output parameters for reforming various fuels. The proposed method performs better in CO prediction than the support vector machine (SVM), with an R2 of 0.9989 against 0.9827. This novel methodology not only improves performance estimation for reforming processes but also provides a valuable tool for accurately estimating output parameters across various fuel types.
Association between yoga and related contextual factors with moderate-to-vigorous physical activity among children and youth aged 5 to 17 years across five Indian states
Authors: Patel Jamin , Ibrahim Sheriff , Bhawra Jasmin , Khadilkar Anuradha , Katapally Tarun Reddy
Published: May 2024

Physical inactivity is one of the four key preventable risk factors, along with unhealthy diet, tobacco use, and alcohol consumption, underlying most noncommunicable diseases. Promoting physical activity is particularly important among children and youth, whose active living behaviours often track into adulthood. Incorporating yoga, an ancient practice that originated in India, can be a culturally-appropriate strategy to promote physical activity in India. However, there is little evidence on whether yoga practice is associated with moderate-to-vigorous physical activity (MVPA) accumulation. Thus, this study aims to understand how yoga practice is associated with MVPA among children and youth in India. Data for this study were obtained during the coronavirus disease lockdown in 2021. Online surveys capturing MVPA, yoga practice, contextual factors, and sociodemographic characteristics, were completed by 5 to 17-year-old children and youth in partnership with 41 schools across 28 urban and rural locations in five states. Linear regression analyses were conducted to assess the association between yoga practice and MVPA. After controlling for age, gender, and location, yoga practice was significantly associated with MVPA among children and youth (β = 0.634, p < 0.000). These findings highlight the value of culturally-appropriate activities such as yoga, to promote physical activity among children and youth. Yoga practice might have a particularly positive impact on physical activity among children and youth across the world, owing to its growing global prevalence.
Effect of GnRH agonist down-regulation combined with hormone replacement treatment on reproductive outcomes of frozen blastocyst transfer cycles in women of different ages
Authors: Xie Jianghuan , Lu Jieqiang , Zhang Huina
Published: May 2024

Objective

To investigate the effect of GnRH agonist (GnRH-a) down-regulation prior to hormone replacement treatment (HRT) to prepare the endometrium in frozen embryo transfer (FET) cycles in women of different ages.

Methods

This was a retrospective study, and after excluding patients with adenomyosis, endometriosis, severe endometrial adhesions, polycystic ovary syndrome (PCOS), and repeated embryo implantation failures, a total of 4,091 HRT cycles were collected. Patients were divided into group A (<35 years old) and group B (≥35 years old), and each group was further divided into HRT and GnRHa-HRT groups. The clinical outcomes were compared between groups.

Results

There was no statistically significant difference in clinical outcomes between the HRT and GnRHa-HRT groups among women aged <35 years. In women of advanced age, higher rates of clinical pregnancy and live birth were seen in the GnRHa-HRT group. Logistic regression analysis showed that female age and number of embryos transferred influenced the live birth rate in FET cycles, and in women aged ≥ 35 years, the use of GnRH-a down-regulation prior to HRT improved pregnancy outcomes.

Conclusions

In elderly woman without adenomyosis, endometriosis, PCOS, severe uterine adhesions, and RIF, hormone replacement treatment with GnRH agonist for pituitary suppression can improve the live birth rate of FET cycles.