bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis Perhitungan, Pencatatan, Penyetoran dan Pelaporan Pajak Penghasilan 21 Pada RS Vania Bogor Tahun 2015 - 2016
Authors: Prihatono Yudha Pratama , Sutomo Hadi
Published: February 2020

This research was conducted at Vania Bogor Hospital which is located at Jalan Siliwangi No.42, Sukasari, Bogor Timur, Kota Bogor, West Java 16142. The purpose of this study was to find out the Suitability of Calculation, Deposit and Reporting at Vania Bogor Hospital in 2015-2016 by Regulation The Director of Tax as stated in PER 32 / PJ / 2015 and PER 16 / PJ / 2016 and Knowing the Suitability of Recordings conducted by Vania Bogor Hospital with generally accepted Accounting Standards.              This research is a qualitative research with a descriptive approach. This method is used with the aim to answer and provide an overview of the analysis of calculation, recording, depositing and reporting PPh Article 21. The analysis method used by the writer is descriptive qualitative writing, which is an attempt to collect and compile a data, then analyze the data . Descriptive analysis is the data collected is in the form of numbers.              The results of the research show that the calculation, recording, depositing and reporting conducted by Vania Bogor Hospital is in accordance with the generally accepted tax regulations and accounting standards. However, there are some SPT for Correction Periods in Reporting that were carried out by Vania Bogor Hospital which was caused by being wrong in calculating the number of employees. For Vania Bogor Hospital employees who are responsible for Article 21 PPh, it is advisable to do the right calculation between the number of employees who are still working and the number of employees who are no longer working at Vania Bogor Hospital.
المراصد الحضرية دراسة مقارنة لتجربة المملكة العربية السعودية مع تجارب الدول الأخرى "التحديات وسبل التطوير"
Authors: أمير محمد العلوان أمير محمد العلوان
Published: February 2020

. يهدف هذا البحث إلى التعرف على تجربة المراصد الحضرية في المملكة العربية السعودية والتحديات التي تواجهها وسبل تطويرها، ومقارنة تجربة المملكة في إنشاء وتشغيل وإدارة المراصد الحضرية واستنباط المؤشرات الحضرية وآلية جمع وتحليل البيانات والمعلومات مقارنة بتجارب المراصد الحضرية في الدول الأخرى. وقد أظهرت نتائج البحث ما يلي: أولاً: أن المراصد الحضرية توجه عالمي، وضرورة للتعامل مع عملية التحضر السريعة داخل المدن، ودعم القرار المحلي، وتنامي المشكلات الحضرية، وتوجيه الموارد بما يخدم التنمية الحضرية المستدامة في البيئات الحضرية. ثانياً: تختلف تجارب الدول في عملية إنشاء وتشغيل وإدارة المراصد الحضرية والتحديات التي تواجهها، بعضها أنشأت مراصد حضرية على المستوى الإقليمي والمحلي والبعض الاخر على المستوى الوطني، وفي المملكة العربية السعودية تعمل المراصد الحضرية على المستوى المحلي والإقليمي. ثالثاً: تواجه المراصد الحضرية في المملكة بعض التحديات والصعوبات من أهمها ضعف الموارد البشرية الوطنية المتخصصة والمؤهلة التأهيل الجيد، وضعف الموارد المالية والميزانيات المخصصة لإنشاء وتشغيل وإدارة المراصد الحضرية، وضعف التعاون والتنسيق بين الجهات الحكومية والخاصة المعنية بتوفير المعلومات، وصعوبة الحصول على البيانات والمعلومات المطلوبة لإنتاج المؤشرات في الوقت المحدد لها وبشكل دوري. رابعاً: أوضحت نتائج البحث والمقارنة أن المؤشرات الحضرية التي يتم رصدها في معظم المراصد الحضرية في المملكة هي (51) مؤشراً حضرياً متفق عليها عالمياً بالإضافة إلى مؤشرات حضرية إضافية ترصدها المراصد الحضرية خاصة بها والتي تعكس خصوصية هذه المدينة أو الإقليم. خامساً: آلية جمع المعلومات وتبادل الخبرات بين المراصد الحضرية في المملكة تتبع الأساليب التقليدية مقارنة بتجارب المراصد الحضرية في الدول المتقدمة. وقد توصل البحث إلى عدداً من التوصيات من أهمها ما يلي: أهمية الاستمرار في إنشاء وتشغيل المراصد الحضرية في المملكة وبالأخص في المدن المتوسطة والصغيرة ودعمها بالموارد البشرية الوطنية المتخصصة والمؤهلة، وتوفير الموارد المالية والميزانيات المطلوبة لها، وتوظيف التقنيات الحديثة في عمل المراصد الحضرية لتسهيل عملية تبادل المعلومات والخبرات فيما بينها، ورفع مستوى اهتمام المسئولين المعنين بضرورة المراصد الحضرية في عملية دعم القرار المحلي وتوجيه السياسات والخطط والبرامج التنموية في البيئات الحضرية. كما أوصى هذا البحث بأهمية تشغيل المرصد الحضري الوطني الذي أنشئ حديثاً وتفعيل دوره لكي يكون ذراعاً داعما ومساند للمراصد الحضرية المحلية والإقليمية في المملكة.
المسجد ذو الفناء الداخلي من التراث إلى المعاصرة: أدواره الوظيفية والبيئية والتشكيلية
Authors: وائل حسين يوسف أحمد وائل حسين يوسف أحمد
Published: February 2020

مثل الفناء داخل المسجد في عمارته الأولى أحد أهم العناصر الوظيفية والاجتماعية الأساسية بل والبيئية، وتكون المسجد في البداية من عنصرين؛ مساحة مغطاة ومساحة أخرى مكشوفة تمثل الفناء، والذي أحيط في أغلب المساجد بالأروقة من عدة جهات، وقد احتوى مسجد الرسول عليه الصلاة والسلام ومسجد قباء في صورتيهما الأولى على فناء، وكانت وظيفة الفناء امتداداً لبيت الصلاة، وخاصة في مناسبات الصلوات الجامعة، ثم بعد ذلك انتشر المسجد ذو الفناء في العديد من مناطق العالم الإسلامي، مثل مسجد ابن طولون بمصر وقرطبة بالأندلس، وسامراء والمسجد الكبير بالقيروان والجامع الأزهر بالقاهرة وغيرهم. وقد كان للفناء العديد من الأدوار الوظيفية والبيئية وكذلك التشكيلية. تتناول الدراسة تاريخ وأصل ومفهوم تكون المسجد ذي الفناء، وتحليل الأنماط التاريخية المختلفة لفناء المساجد التراثية، والمفاهيم المؤثرة على تكوينه، وعلاقة الفناء بفراغات المسجد، مع توضيح للمفردات التشكيلية لعمارة الفناء وأثرها على فراغ واستعمال الفناء، ثم تتعرض الدراسة للمستجدات التي طرأت على الفناء وأدت إلى اختفائه بالمساجد التراثية. وتناقش الدراسة أدوار الفناء بالمساجد المعاصرة التقليدية وغير التقليدية، وتنتهي الدراسة بالعوامل التي أثرت على تكوين الفناء.
Los árboles y la importancia de los espacios verdes públicos
Authors: Benavidez Wildghem
Published: February 2020

La presencia de los Espacios verdes Público (EVP) es cada vez más diversa y cobra mayor importancia. La elevación de la cualificación de los EVP contribuye a promover zonas habitables bien diseñadas, confortables y de alto valor medioambiental, favoreciendo el desarrollo de ciudades sustentables. Se propone una metodología para la clasificación de los Espacios Verdes Público sobre la base de un enfoque integral que comprende las dimensiones: morfotipológica, funcional, sociopsicológica y ecosistémica a partir de las relaciones que se establecen entre el hombre y su medio. Se define el concepto de Espacio Verde Público y se presentan las variables e indicadores a partir de los cuales se estructura el modelo teórico para la clasificación de estos espacios. Este enfoque incluye el desarrollo de un modelo espacial de relaciones, que ejemplifica gráficamente los diferentes aspectos seleccionados para el análisis, así como su interrelación. Como resultado, se logra una asociación óptima de los elementos que integran la relación del hombre con su medio en los espacios analizados.
Validación de máquina briqueteadora para el aprovechamiento de la cascarilla de café como combustible
Authors: Dávila Karla Elizabeth , Amador Aura , Morazán Fátima , Rugama Jader
Published: February 2020

La investigación contó con el apoyo técnico y financiero de la Fundación para el Desarrollo Tecnológico Agropecuario y Forestal de Nicaragua (FUNICA) y su finalidad fue validar una máquina briqueteadora de tornillo helicoidal para el aprovechamiento de la cascarilla de café como combustible. Se determinaron las propiedades de la cascarilla de café, se caracterizaron las briquetas elaboradas con la máquina briqueteadora, comparándolas con las elaboradas artesanalmente, asimismo se establecieron las ventajas económicas de dicho equipo, y  posteriormente se realizó un análisis comparativo entre las briquetas y la leña como combustible. Para elaborar estos análisis se ejecutaron varias actividades entre ellas: pruebas de ceniza, humedad, granulometría, análisis del funcionamiento del equipo, desarrollo de producto densificado (briquetas) con diferentes aglutinantes, pruebas de dióxido de carbono, poder calórico, y se realizó el cálculo de la inversión inicial, costos de producción de las briquetas. Las pruebas realizadas dieron como resultado que entre menor sea el tamaño de las partículas de la materia prima (cascarilla) se obtiene mayor calidad del producto densificado, sin embargo la máquina de tornillo helicoidal, resultó ser un equipo no funcional, debido al sistema de compactación que presentaba. Por éste y otros inconvenientes se descartó, por lo tanto se recurrió a dos prototipos de maquinaria como son el Molde de madera y la Prensa manual, este último presenta un sistema de compactación que permite obtener un producto de calidad al usar una mezcla de almidón cocido con cascarilla triturada. Con esto se procedió a realizar los cálculos de producción obteniendo que estos son mayores en la prensa, debido a su nivel de producción, en cambio en el molde son menores, pero su producto no es suficientemente compacto. Dentro del análisis comparativo entre la leña y la briqueta se encontró que ésta última presenta mayor poder calórico, genera menos dióxido de carbono, aspecto que podemos destacar desde el punto de vista ambiental.
Aprovechamiento de la cascarilla de café en la elaboración de materiales de construcción
Authors: Sierra Jimmy , Roque Hyman , Medrano Jared
Published: February 2020

La investigación contó con el apoyo técnico y financiero de la Fundación para el Desarrollo Tecnológico Agropecuario y Forestal de Nicaragua (FUNICA) y se realizó con la finalidad de aprovechar la cascarilla de café en la elaboración de materiales de construcción. La cascarilla de café en su estado natural o molida se comportó muy similar al árido fino, ya que la retención en las mallas fue muy similar en comparación en la arena. El módulo de finura indicó que la arena, el material cero y la cascarilla natural y su fase molida presentan un índice de tamaño de partículas superior al rango de 2.1 a 3.1 según la norma ASTM C33, lo cual indica que son gruesos, siendo la más gruesa la cascarilla de café con 4,44 y el material cero con 4,17. Los agregados que poseen mayor cantidad de agua son la cascarilla de café con un contenido de humedad de 6,30% y la cascarilla de café molida con 5,39%, seguido por el material cero con 2,54% siendo el menor el de la arena con 2,33%. Los bloques con cascarilla de café entera son menos costosos que los hechos con cascarilla de café molida, esto es debido a que cuando las partículas son pequeñas requieren de mayor cantidad de cemento para ser cubiertas.
Electric Vehicle Sales Catastrophe Averted (?)
Authors: Sands Timothy
Published: February 2020

The literature indicates catastrophic potential for electric vehicles around the year 2019. Amidst the predicted time, this research revisits the prequel analysis with state-of-the-art deterministic artificial intelligence methodologies to posit the potential for catastrophe in the upcoming year. The methodology has proven effective with motion mechanics, electrodynamics, and even financial analysis of sales date in the prequels, since the model commences with simple regression for mathematical model formulation asserting the certainty equivalence principle, followed by derivative modeling and eventually catastrophe analysis of the derivative models. The prequel analysis paradigms are retained in this sequel utilizing both monthly and cumulative sales data in simple least squares algorithms for predictive curve fitting to establish context and help correctly model the mathematical degree of the data. Extrapolation by forward time-propagation established predictions for models of various mathematical degrees (again merely for context). Next, catastrophe analysis (of the derivative form) revealed stable and unstable equilibrium points and then parametric variation was induced to evaluate the resulting behavior of the derivative models, highlighting the importance of the coefficient of the second order term (the acceleration or change of rate of sales as a forcing function). While the forcing function typically embodies both gasoline prices and vehicle charging proliferation, the relative stability of gas prices together with factors such as vehicle-to-grid elevate charging-station proliferation as the primary forcing function of slow-dynamics in catastrophe analysis. This brief manuscript revisits the prequel research to test the validity of those conclusions and with the benefit of the passage of time, reveal how well the mathematical modeling predicted real behavior. The main finding is the predicted potential catastrophe is less likely to occur and recommendations are made to insure catastrophe is averted.
The Image of NATO in Russian Television on the 70th Anniversary of the North Atlantic Pact
Authors: Krzywdzińska Agata
Published: February 2020

Background: The 70th anniversary of the North Atlantic Pact became an impulse to write the article – to discuss the manner in which the topic was presented on Russian public television. Objectives: The aim of the article is to reconstruct NATO’s image (the military organization associating twenty-nine countries of Europe and North America) on channel Russia-1 in connection with the seventieth anniversary of the Pact, celebrated on 4 April 2019.
Methods: The research materials are analytical programmes and political talk shows broadcast in March and April 2019. A content analysis method was used to examine the programmes. Results: Examination of the programmes showed that Russian public television is a mirror image of the state policy. Conclusions: Russian public state television channel Russia-1 presents a coherent narrative image of NATO regardless of the genre formula of the programme. NATO, in the assessment of selected TV programmes, is clearly viewed as an aggressive organization, encroaching closer on the borders of Russia.
Desenvolvimento do aplicativo XÔ ZIKA para Android: Tecnologia educacional aplicada na área de saúde
Authors: Serafin Cleber Fernando , de Carvalho Felipe José Rezende , Schmitt Marcos Fernando , Zarth João Vitor
Published: February 2020

Contemporaneamente o Brasil é assolado por um grande mal: a proliferação do mosquito Aedes aegypti. Nossa região tem se tornado endêmica com número crescente de pessoas infectadas. A falta de conscientização e colaboração da população contribui para o crescimento desse problema. Com o objetivo de melhorar o conhecimento das pessoas sobre essa questão, auxiliando no combate ao problema, desenvolvemos o aplicativo gratuito Xô Zika para dispositivos móveis com sistema operacional Android. Ele conta com questões envolvendo a temática em questão no formato de quiz, além disso, dispõe de um formulário para que a população possa enviar denúncias anônimas de um possível foco às autoridades competentes.
Caracterizações de convexidades geométricas de grafos
Authors: de Araújo Rafael Teixeira , Sampaio Rudini Menezes
Published: February 2020

Uma convexidade de grafos é geométrica se todo conjunto convexo é o fecho convexo de seus vértices extremos. Vários trabalhos têm caracterizado as classes de grafos para os quais uma dada convexidade é geométrica, como a convexidade monofônica em grafos cordais, a convexidade geodésica em grafos ptolemaicos [Farber and Jamison 1986] e a convexidade m3 em grafos bipolarizados fracos [Dragan et al. 1999]. Nesse artigo, obtemos caracterizações para as convexidades P3, P3 , P+4 e triangle-path. Também obtemos resultados no sentido oposto: dada uma classe de grafos, existe alguma convexidade que só é geométrica nessa classe?
Padrão de Desenho para a Família de Grafos Gêmeos
Authors: Merlo Cassio Ferreira , Rodrigues Mauro Pinheiro , Paiva Marcia Helena Moreira
Published: February 2020

Este artigo trata da reflexão crítica envolvida no desenvolvimento de um padrão gráfico para a família de grafos gêmeos, considerando como seu objetivo principal a caracterização da família e a facilidade de concepção. Este trabalho é baseado na busca pelo desenvolvimento de um padrão visual para tal propósito, partindo do vazio até a forma final.
KM-Finder: Uma Ferramenta para Detecção de Motivos
Authors: Montera Luciana , Vilhagra Lucas Akayama , Raiol Tainá
Published: February 2020

A identificação de padrões em regiões específicas nos genomas de HPV pode contribuir para o entendimento da patogênese viral. Neste trabalho, foi desenvolvida uma ferramenta para busca por padrões de nucleotídeos (motivos) em uma ou grupos de sequências de DNA, tarefa que continua a ser um desafio computacional.
Um modelo ubíquo para retriagem de pacientes baseado na Internet das coisas
Authors: Wunsch Guilherme , da Costa Cristiano André , Righi Rodrigo da Rosa
Published: February 2020

Triagem é um processo que visa ordenar os pacientes de acordo com sua necessidade de cuidados em emergências de hospitais. Contida nesse processo existe a retriagem, que ocorre quando uma outra avaliação é efetuada caso haja necessidades clínicas para isso ou em um período fixo e recorrente definido pelo protocolo do triagem. Esse trabalho se propôs a desenvolver um modelo computacional que visa utilizar conceitos de computação móvel e ubíqua focados nos cuidados de saúde durante a etapa de retriagem de pacientes. A principal contribuição científica desse trabalho foi inferir o momento correto para efetuar a retriagem através da coleta de sinais vitais dos pacientes fazendo o uso da Internet das coisas. Para a avaliação do modelo proposto foi desenvolvido um protótipo buscando analisar sua aplicação em um cenário criado. Sendo assim, nós concluímos que o modelo desenvolvido é viável para uso nas emergências de hospitais.
SISDOC: Uma Biblioteca Digital Multimídia para Gestão de Documentos Ambientais
Authors: de Figueirêdo Hugo Feitosa , Amorim Ruan Victor , Baptista Cláudio de Souza , Paes Roberta Falcão de Cerqueira , Duarte Brígida , Pinto Murilo Sérgio Lucena
Published: February 2020

Neste artigo, propõe-se um novo método para gerenciamento de documentos gerados por processos relacionados à gestão ambiental no escopo de uma empresa de geração de energia elétrica. O novo método permite o reconhecimento óptico de caracteres, a indexação pelo conteúdo, extração de metadados, anotação com valores de atributos criados por um esquema dinâmico, tratamento de imagem, destaque de termos encontrados em documentos, filtro temporal e conversão para formatos padrões. O método proposto foi implantado no Departamento de Meio Ambiente da Companhia Hidrelétrica do São Francisco (CHESF) e permite melhorar a eficiência na gestão de documentos, economizando recursos do sistema computacional (hardware, software e peopleware) adotados para gerenciamento de documentos multimídia, bem como agilizando os processos de licenciamento ambiental e fiscalização de bordas de reservatórios.
Recursos Computacionais para Suporte ao Ensino de Teoria da Computação, Linguagens Formais e Autômatos
Authors: Souza Ícaro Andrade , Matos Ecivaldo De Souza , Santos Débora Abdalla , Sousa Ranansamir
Published: February 2020

Teoria da Computação, Linguagens Formais e Autômatos, segundo as diretrizes curriculares nacionais (DCN), formam um conjunto de conteúdos fundamentais aos estudantes de cursos de graduação em Computação. Para aprendê-los, esses estudantes precisam trabalhar aspectos cognitivos como abstração e conhecimento teórico-matemático. Ao longo dos anos, foram desenvolvidos diversos recursos computacionais destinados a auxiliar o ensino desses conteúdos. Nesse sentido, este artigo apresenta um levantamento de softwares para o enriquecimento das estratégias de ensino de Teoria da Computação, Linguagens Formais e Autômatos, apresentando uma análise do desenvolvimento histórico e de suas funcionalidades para favorecimento da escolha/adoção desses recursos.
Library Statistics: A Preliminary Report on Academic Libraries, 1966-67
Authors: Trezza Alphonse F.
Published: February 2020

Library Statistics: A Preliminary Report on Academic Libraries, 1966-67
Shakin' down at Shakertown
Authors: Hanson Charles
Published: February 2020

Shakin' down at Shakertown
Prevalence of Sports Practice among Mexican Adults in 2002 and 2014
Authors: Ortiz-Hernandez L. , Ayala-Hilario C. , Ayala- Guzmán CI.
Published: February 2020

El objetivo del estudio fue conocer el cambio en la prevalencia de la práctica deportiva en adultos mexicanos y su asociación con características sociodemográficas. Analizamos la Encuesta Nacional de Uso del Tiempo (ENUT) de México realizada en 2002 y 2014. A través de un cuestionario se indagó la práctica deportiva en la semana previa. Las variables independientes fueron las características sociodemográficas. Encontramos que la prevalencia de la práctica deportiva aumentó entre 2002 y 2014 (de 15.8% a 29.3%). Ser soltero o tener una posición socioeconómica alta se asoció con una mayor probabilidad de práctica deportiva. Los hombres y los habitantes de las ciudades tenían mayores probabilidades de practicar deporte en comparación con sus contrapartes; aunque estas diferencias tendieron a disminuir. Concluimos que la prevalencia de la práctica deportiva ha aumentado, sin embargo, sigue siendo baja. Identificamos grupos con menor probabilidad de practicar deportes en los que se pueden enfocar esfuerzos para promover la actividad física.

The aim of our study was to know the change over time of sports practice prevalence in Mexican adults and its socio-demographic correlates. We analyzed the Mexican National Survey of Time Use (ENUT) conducted in 2002 and 2014; which is based on a representative sample of Mexican adults. Through a questionnaire, it was inquired if people practised sport in the previous week of the interview and the time spent to do it. The independent variables were sociodemographic characteristics. We found that the prevalence of sports practice increased between 2002 and 2014 (from 15.8% to 29.3%). Being single or having a high socioeconomic position was associated with a higher probability of sports practice. Men and city dwellers had higher probabilities of practice sport compared with their counterparts; although these differences tended to decrease. We conclude that the prevalence of sports practice in Mexico has increased, but it remains low. We identified groups with lower probabilities to practice sport in which efforts can be focused to promote active lifestyles.
Aflatoxin B1 Affects Kenyan Markets: How It Can be Managed
Authors: Lugasi Solomon Omwoma
Published: February 2020

Aflatoxin B1 is a toxin produced as secondary fungal metabolites by the fungus Aspergillus, particularly A. flavus. The toxin has significantly contaminated the food supply chain especially cereals in Kenya. Kenya Bureau of Standards (KEBS) has recently banned five maize flour brands, citing high aflatoxin levels. They also suspended seven peanut butter products and the permits of their parent companies over aflatoxin contamination. The huge losses encountered by these companies calls for concerted efforts to manage aflatoxin in cereals. Aflasafe, a natural product for controlling poisonous A. flavus in food crops, including maize is made from roasted sterile sorghum (usually colored blue using food color) coated with non-poison producing types of A. flavus native to Kenya. The product is broadcasted in the maize fields during flowering and after exposure to sufficient moisture, the friendly Aflasafe fungi grow out as green spores containing millions of spores that are eventually spread to the crop, carried by wind and insects in the manner that aflatoxin-producing fungi are spread.
Does deformation of immobilization devices impact treatment accuracy in thoracic cancer radiotherapy?
Authors: Zhao Lianzi , Zhang Louzheng , Hu Yiwen , Zhong Yang
Published: December 2024

Background

Immobilization devices are essential for maintaining accurate and repeatable patient positioning in radiotherapy. This study aimed to evaluate the setup errors and dosimetric deviation induced by the deformation of immobilization devices in thoracic cancer radiotherapy using CT‐linac.

Materials and methods

A retrospective analysis was conducted on 40 thoracic cancer patients who underwent radiotherapy, using vacuum cushion (VC) and thermoplastic mask (TM) for immobilization. A total of 206 weekly Fan‐beam CT (FBCT) images (4–7 per patient) were analyzed to manually delineate immobilization devices and assess their geometric deformations against setup errors. Dosimetric deviations between the clinical plan (CT‐plan) and the delivered plan (FBCT‐plan) were compared for planning target volume (PTV) and organs at risk (OARs). Correlations between dose variations and setup errors were analyzed in lateral (LAT), longitudinal (LNG), and vertical (VRT) axes.

Results

The conformity of the VC (Nup) and TM (Ndown) with the patient in simulation CT exhibited moderate to strong correlations with VRT setup errors (Ndown: r = −0.484, p < 0.01;Nup: r = −0.697, p < 0.01). However, intra‐fraction deformation of immobilization devices (in FBCT) showed no significant correlation with setup errors. In the dosimetric analysis of OARs, lung dose parameters (Dmean, V5, V20) and heart Dmean exhibited a consistent absolute difference with increasing setup errors. Dose variation decreased significantly when errors exceeded 5 mm, particularly in the VRT direction for most PTV indices, with the exception of CI and HI. Spinal cord Dmax variation correlated significantly with setup accuracy along the LNG axis, but not along other axes.

Conclusion

The conformity of immobilization devices in simulation CT exhibits a stronger correlation with setup accuracy than the deformation of these devices in intra‐fraction FBCT. FBCT is recommended for improving treatment precision through dosimetric assessment and planning adjustments.
Machine Learning‐Driven Ultrasensitive WSe2/MWCNT Hybrid‐Based E‐Nose Sensor Array for Volatiles Amines Mixture
Authors: Gaur Snehraj , Singh Sukhwinder , Bhatia Ajay , Bhutani Vansh , Verma Mohit , Haick Hossam , Pareek Vishakha , Gupta Ritu
Published: December 2024

Volatile amines in breath act as biomarkers for kidney and liver diseases. Monitoring these amines, especially when present as a mixture, provides insights into the metabolic state of the body. This study focuses on differentiating volatile amines by systematically modulating the conductivity and sensitivity of WSe2/Multiwalled Carbon Nanotubes composite‐based sensors. The fabricated chemiresistive sensor array demonstrates high selectivity, sensitivity (7.67% ppm−1), fast response and recovery kinetics (32 s/137 s), and accurate discrimination among target amines, even in the presence of other VOCs (volatile organic compounds). The sensor array operates at room temperature and achieves a theoretical limit of detection (LOD) of 387 ppt, 206, 157, and 202 ppb for triethylamine (TEA), dimethylamine (DMA), methylamine (MA), and ammonia (NH3), respectively, demonstrating its suitability for breath sensing and diagnostics. Machine learning (ML) analysis is employed to differentiate between the volatile amines and mixtures with 94% accuracy. The ability to detect these amines at such low ppt and ppb levels underscores the potential of this e‐nose technology for high‐performance applications in early‐stage disease diagnostics.
Design of Janus Heterostructures Embedded in Carbon Nanofibers via Heterointerface and Structural Engineering for Rapid Polysulfide Conversion
Authors: Zhang Xiaofei , Wang Tongzhen , Li Yulei , Yang Jie , Cui Jiewu , Yan Jian , Liu Jiaqin , Tan Hark Hoe , Yu Yan , Wu Yucheng
Published: December 2024

The sluggish redox kinetics of sulfur electrode and the “shuttle effect” caused by soluble lithium polysulfides (LiPS) are critical challenges in the advancement of high‐energy lithium‐sulfur batteries. Here, a pioneering flexible self‐supporting composite scaffold that incorporates Janus V2O3/VN heterostructures embedded within multichannel nitrogen‐doped carbon nanofibers (MNCNF) is introduced. The MNCNF features a 3D hierarchical porous conductive network that facilitates rapid ion/electron transport while offering substantial space for high sulfur loading. Theoretical calculations demonstrate that the Janus V2O3/VN heterocatalyst, featuring a built‐in interfacial electric field, facilitates a smooth and rapid “capture‐diffusion‐conversion” of LiPS by leveraging the V2O3’s strong adsorption capacity, VN's high catalytic capability and promoted interfacial charge/ion transport, thereby accelerating bi‐directional sulfur conversion. The as‐designed sulfur electrode with a sulfur loading of 2.0 mg cm−2 showcases high rate capability of 618 mAh g⁻¹ at 5C with 68.1% capacity retention over 500 cycles. Notably, under harsh conditions of high sulfur loading (6.0 mg cm−2) and lean electrolyte (7.5 µL mg−1), it achieves a high initial areal capacity of 4.92 mAh cm−2 with 94.8% capacity retention over 150 cycles. This work offers valuable insights for the rational design of optimal vanadium‐based heterocatalysts aimed at facilitating rapid sulfur redox conversion.
High Color Purity Deep‐Blue Multi‐Resonance TADF Material with Narrowband Emission Toward BT.2020 Standard
Authors: Su Hanrui , Wang Yaxiong , Di Kaiyuan , Yue Haotian , Huang Shan , Tian Yongxing , Zhang Qiang , Shao Hongbo , Guo Runda , Wang Lei
Published: December 2024

Due to higher exciton energy, the deep‐blue organic light‐emitting diodes (OLEDs) are the most challenging among trichromatic emitters. In this work, three novel blue emitters with multi‐resonance (MR) effects are reported based on N,N,5,9‐tetraphenyl‐5,9‐dihydro‐5,9‐diaza‐13b‐boranaphtho[3,2,1‐de]anthracen‐7‐amine (PAB) skeleton, incorporating fluorine and methyl groups. Compound 2FPAB and MePAB exhibit ultra‐pure deep‐blue emission peaks at 436 and 448 nm respectively. The device based on MePAB achieves a maximum external quantum efficiency of 19.8% with an ultralow CIEy value of 0.046 and a full‐width‐at‐half‐maximum (FWHM) of 29 nm in the bottom emitting device. Additionally, the peripheral cladding of fluorine atoms extends the conjugation framework and slightly enhances the electron acceptance character of the boron atom at the ortho‐position. This leads to a redshift in the emission spectrum and enhanced photoluminescence quantum yield (PLQY) of up to 93% for MePABF. Furthermore, the potential application of MePAB as a deep‐blue sensitizer for MePABF is examined by fabricating a TADF‐sensitized‐TADF (TST) device. The results show a significantly reduced efficiency roll‐off and improved device performance, with a maximum external quantum efficiency (EQEmax) of 25.1% and a FWHM of 29 nm.
Cucurbituril‐Manipulated Supramolecular Electrodes for Highly Active and Stable (Photo)electrocatalytic Oxidation Reactions
Authors: Jiang Shuai , Zhang Kefan , Yin Xianjun , Peng Hui‐Qing , Zhang Wenjun , Liu Bin
Published: December 2024

The robust immobilization and activity regulation of molecular catalysts on solid electrodes have remained persistent challenges in catalysis. Herein, cucurbituril (CB[7]) acts is first demonstrated as a bifunctional medium to firmly immobilize molecular catalyst CoTMPyP onto various metal oxide electrodes, including TiO2, BiVO4, α‐Fe2O3, and WO3, through host‐guest and electrostatic interactions. This approach not only secures stable attachment of the catalyst but also optimizes its electronic structure and catalytic activity. The CB[7]‐mediated supramolecular electrodes exhibit exceptional performance in electrocatalytic oxygen evolution reaction (OER), ethanol oxidation reaction, hydrazine oxidation reaction, and photoelectrocatalytic water oxidation. For instance, TiO2‐CB[7]‐CoTMPyP electrode achieves a turnover frequency (TOF) of 5.30 s−1 at an overpotential of 600 mV for OER, and BiVO4‐CB[7]‐CoTMPyP photoanode delivers a water oxidation photocurrent density of 6.00 mA cm−2 at 1.23 V versus RHE under simulated solar irradiation. Mechanistic studies reveal CB[7] plays a critical role beyond merely serving as a linker: it enhances charge accumulation around the cobalt sites, promotes reactants adsorption at these sites, reduces reaction energy barrier, and accelerates charge transfer rate, thereby significantly boosting catalytic activity. This work provides a groundbreaking pathway for the design and fabrication of cost‐effective, high‐performance molecular‐based electrodes for (photo)electrocatalytic reactions.
New Mechanisms of Phase Transition in Olivine‐Type LixMn0.7Fe0.3PO4 Cathodes: a Finding on Relaxation Behavior and its Implications for Battery Performance
Authors: Li Shuzhen , Wang Jinkun , Liu Yong , Liu Zhibei , Zhang Hao , Wang Li , He Xiangming
Published: December 2024

Phosphates of the olivine type, LiMnyFe1‐yPO4 (LMFP), have garnered significant attention due to their higher energy density compared to LiFePO4 (LFP). However, their limited cycle life and rate performance remain key obstacles to their commercialization. Therefore, elucidating the intricate phase transition mechanisms during electrochemical cycling is paramount to overcoming this bottleneck. This study investigates the relaxation behavior of LixMn0.7Fe0.3PO4 (0≤x≤1) under various conditions revealed a remarkable memory characteristic in its crystal structure: the lattice parameters of different delithiated states return to their fully lithiated configuration upon complete relaxation. Moreover, the relaxation rate is influenced by the charging/discharging conditions and storage environment: higher rates, greater delithiation, and longer relaxation times are observed, as are extended relaxation time at lower temperatures and in the absence of electrolyte. These findings provide a rational explanation for the complexity of the phase transition mechanisms in LMFP and highlight the significant differences in phase transition and relaxation behaviors, advancing the understanding of LMFP materials.
Covalent Adaptable Networks for Sustainable Soft Electronic Sensors and Actuators
Authors: Seah Georgina E. K. K. , Lee Zhi Yuan , Gan Ai Wei , Jiang Xin , Kamarulzaman Sirin , Yu Jing , Goh Shermin S.
Published: December 2024

The flexible electronics market is rapidly growing, driven by demand in the healthcare, automotive, and consumer industries. While these technologies enhance the daily lives, the electronic waste (e‐waste) generated in tandem poses significant environmental challenges. Covalent adaptable networks (CANs) are crosslinked polymers bearing dynamic covalent bonds (DCBs). These exchangeable bonds endow CANs not only with the high mechanical and chemical stability of thermosets but also with the stimuli‐activated reprocessability of thermoplastics. CAN‐derived electronics offer a solution to alleviate e‐waste generation since the DCBs allow for the self‐healing and recycling of these devices. Additionally, the ability of CANs to respond to stimuli is highly desirable for smart materials, especially flexible electronics. In this review, how CANs play the role of conformable substrates and dielectrics, and also as flexible electronic connectors, sensors, and actuators is comprehensively cataloged. Furthermore, the advantages gained by utilizing CANs in electronic sensors and actuators is highlighted, as well as provide the insights into design strategies to address the challenges of creating high‐performance sustainable soft electronics.
Alkali Metal‐Induced Core‐Shell Hybrid with Mixed Ir Valence State Boosts Acidic Water Oxidation
Authors: Wang Liu , Li Zijian , Jang Haeseong , Kim Min Gyu , Liu Shangguo , Wang Xuefeng , Zeng Mengran , Cho Jaephil , Liu Xien , Qin Qing
Published: December 2024

Iridium (Ir)‐based electrocatalysts have long been employed as the benchmark for the oxygen evolution reaction (OER) in acid, but further to improve their catalytic activity still facing great challenges. Herein, alkali metal K is incorporated to induce the in situ construction of a core‐shell hybrid of K‐IrOx thin skin‐wrapped metallic Ir (K‐IrOx/Ir) to boost the acidic OER. The K‐IrOx/Ir exhibits exceptional catalytic performance with a long lasting stability of 3000 h operation and a low overpotential of 199 mV to reach the 10 mA cm−2. Electrochemical and spectroscopic studies revealed that the enrichment of K in the low‐coordination IrOx shell induces a significant compressive strain, which regulates the Ir─O bond properties and further optimizes the adsorption energy of rate‐limiting intermediates, favoring of the enhanced catalytic activity. Furthermore, the surface IrOx active layer is well maintained during the OER process thanks to the mixed‐valence state and intensified electronic interaction in core‐shell hybrid that inhibit the overoxidation and dissolution of Ir, responsible for the outstanding stability. This work offers a novel strategy for developing high performance acidic OER catalysts by the design of favorable mesostructured architectures with mixed metal states to enable the intensified electronic interaction and strain effect.
Local Charge Regulation in Selenides via High‐Entropy Engineering to Boost Electromagnetic Wave Absorption
Authors: Yan Zhikai , Wang Lei , Du Yiqian , Chen Guanyu , Wu Yuyang , Yang Liting , You Wenbin , Zhao Biao , Che Renchao
Published: December 2024

Local charge modulation is an effective method to improve the polarization loss and electromagnetic (EM) absorption characteristics. However, the use of conventional means (doping, defects, heterojunction surfaces) remains singular and limited in achieving local charge modulation. Surprisingly, lattice distortions induced by high‐entropy engineering can intrinsically regulate local charge states and improve EM wave absorption performances. Herein, a series of selenides with enhanced configuration entropy are designed and prepared to improve polarization loss capacity. Due to the different radii of the mixed ions and the Jahn‐Teller distortion effect, the local charge of the selenides is effectively modulated by the presence of defects and strong lattice distortions inside the lattice. Uneven distribution of charge at defects and formation of boundaries promotes defect‐induced polarization and interface polarization, respectively. Compared to single NiSe2, high‐entropy (NiFeCuCoMn)Se2 with an entropy value of 1.53R has more severe lattice defects and suitable impedance matching properties, exhibiting good EM absorption properties both in the absorption intensity and respond frequency. Tailoring the local charge density via an entropy strategy paves a new way for the high‐performance EM absorption materials.
Decoupling Degradation at the Electrode Interfaces in Prussian White Full Cells
Authors: Misiewicz Casimir , Ulander Alexandra E. , Melin Tim , Hall Aram , Berg Erik J.
Published: December 2024

Prussian blue analogues for sodium‐ion battery cathodes are growing in popularity as next‐generation energy storage devices. Prussian White (PW) with formula NaxFe[Fe(CN)6]y•nH2O is leading the trend, having already been commercialized. However, capacity fade (PW/electrolyte degradation) and safety concerns (cyanide/cyanogen release) still raise concerns. Online electrochemical mass spectrometry, supported by both operando Fourier transform infrared spectroscopy and Mössbauer spectroscopy, is herein used to analyze degradation processes in PW‐based Na‐ion full cells. Apart from the typical cell formation reactions, hydrogen is observed to evolve during cell discharge and evidenced to stem from oxidation of NaH, accumulated upon charge. Over‐oxidation of PW after full desodiation releases CN, which not only forms (CN)2 but also degrades the electrolyte. Loss of CN likely results in a nanometric (≈4 nm) surface‐reconstructed passivation layer on PW, thus inhibiting further degradation. Fundamental understanding of degradation reactions in PW full‐cells, as gathered herein, shows that the aforementioned capacity fade and safety concerns are wholly addressable and hence guides the further development of Na‐ion batteries for wider ranges of applications.
Exploration of BSA imprinting mechanism by fluorescence anchoring and host–guest interactions
Authors: Ding Sirui , Wu Jianfeng , Huang Zhen , Chang Sen , Zhang Baoliang
Published: December 2024

For protein imprinting, template molecule anchoring and imprinting site recognition are very important processes. Herein, we have proposed for the first time to use photo‐switchable host–guest interactions between α‐cyclodextrin (α‐CD)‐modified bovine serum albumin (BSA) and azobenzene coated organic covalent framework (COF) to immobilize and elute proteins. A novel surface labeled polymer microspheres (COF‐MIPs) were constructed, which could reduce the mass transfer resistance and accelerate the adsorption process, resulting in the adsorption equilibrium reaching 60 min and the saturated adsorption amount of 563.86 mg/g. Additionally, using guest molecules (azobenzene) to label the imprinted sites allows the correlation of the relationship between the fluorescence intensity and the protein adsorption process. The fluorescence analyses show that the material exhibits excellent adsorption specificity, with imprinting factors greater than 4. This work extended the application of the host–guest interaction between cyclodextrin and azobenzene and provides a new approach for developing protein‐imprinting materials.
Thermal degradation of tertiary amine for CO2 capture: Structure–activity relationships and density functional theory calculations
Authors: Luo Tong , Liu Qi , Xiao Min , Gao Hongxia , Sema Teerawat , Liang Zhiwu
Published: December 2024

Aqueous amine solution is a promising absorbent for CO2 capture, yet irreversible reaction, that is, degradation can happen for amine and leads to performance decrease and many operating difficulties. Despite numerous research on reaction between amine and CO2 for absorption, the reaction of amine degradation is not fully understood, especially for tertiary amine which is a vital component in constructing high‐performance CO2 absorbent. Considering the variety of tertiary amines, this article studied the thermal stability of five tertiary amine solutions at different temperatures to mimic the regeneration condition. The density functional theory (DFT) calculation was applied to reveal the degradation mechanism. The alkylation reaction that triggered the degradation of tertiary amine was deemed as the limiting step. Then the molecular simulation method was extended to 12 tertiary amines, aiming to further illustrate the influence of molecular structure on the alkylation reaction. These results provide basic data and theoretical guidance for developing the anti‐degradation CO2 absorbent.
SENP1 promotes deacetylation of isocitrate dehydrogenase 2 to inhibit ferroptosis of breast cancer via enhancing SIRT3 stability
Authors: Chen Yaomin , Chen Bin , Hong Yun , Chen Liang , Zheng Shusen
Published: December 2024

Breast cancer, one of the most prevalent malignant tumors in women worldwide, is characterized by a poor prognosis and high susceptibility to recurrence and metastasis. Ferroptosis, a lipid peroxide–dependent programed cell death pathway, holds significant potential for breast cancer treatment. Therefore, investigating the regulatory targets and associated mechanisms of ferroptosis is crucial. In this study, we conducted proteomic screening and identified isocitrate dehydrogenase 2 (IDH2) as an important player in breast cancer progression. Our findings were further supported by CCK‐8 assays, transwell experiments, and scratch assays, which demonstrated that the elevated expression of IDH2 promotes breast cancer progression. Through both in vitro and in vivo experiments along with the erastin treatment, we discovered that increased expression of IDH2 confers resistance to ferroptosis in breast cancer cells. By employing Western blot analysis, Co‐IP techniques, and immunofluorescence staining methods, we elucidated the upstream molecular mechanism involving SENP1‐mediated SIRT3 de‐SUMOylatase, which enhances IDH2 enzyme activity through deacetylation, thereby regulating cell ferroptosis. In conclusion, our study highlights the role of the SENP1‐SIRT3 axis in modulating ferroptosis via IDH2 in breast cancer cells, providing valuable insights for developing targeted therapies aimed at enhancing ferroptosis for improved management of breast cancer.
Ancient gene introgression promotes biodiversity of Nymphaea nouchali in Hainan under environmental changes
Authors: Sun Weiyue , Shu Jiangping , Huang Zhicong , He Zuxia , Liu Baodong , Liu Yingrui , Tian Daike , Wu Lei , He Song , Zheng Xilong , Yan Yuehong
Published: December 2024

Hybridization is common in the plant kingdom. Under the influence of global climate change, an increasing number of hybrid species have experienced significant shifts from the geographical distribution of their parents, making it more difficult to detect ancient gene flows. Nymphaea nouchali is a rare aquatic flower native to Hainan Province. Owing to habitat destruction and human interference, the natural range of N. nouchali has gradually reduced to the point of extinction. To explore how hybrid populations form using RAD‐seq with population genetic analysis, it is shown that there are heterozygous deletions and inbreeding in N. nouchali and a number of ancestral components in Nymphaea lotus, low of genetic differentiation, and little gene flow between N. nouchali and N. lotus, and ancient introgression between ancestors may have been more frequent than gene exchange after the origin of the species. Accordingly, the ancient N. nouchali genotypes were gradually infiltrated by N. lotus genes and their forms changed in Hainan. Potential distribution pattern analysis also predicted the possible distribution of N. lotus in Hainan. This lays a foundation for exploring the natural genetic mechanisms of Nymphaea species formation and evolution.
Bone dimensions relationship with gingival phenotype in smokers and nonsmokers using cone‐beam computed tomography
Authors: Barmar Shiva , Torkzadeh Azadeh , Ghaffari Roshanak , Farhad Shirin Zahra , Aryanezhad Seyed Sasan
Published: December 2024

Background

This study aimed to assess the relationship of maxillary alveolar bone thickness (BT) and height (BH) with gingival phenotype (GP) in smokers and nonsmokers using cone‐beam computed tomography (CBCT).

Methods

This cross‐sectional study was conducted on 60 participants. The participants underwent periodontal examination, and their GP was determined by placing a periodontal probe in the gingival sulcus at the midline and observing the transparency. The participants were then assigned to four groups (n = 15) based on their smoking status and GP: thin phenotype/smoker, thick phenotype/smoker, thin phenotype/nonsmoker, and thick phenotype/nonsmoker. BT and BH of the participants were measured in the sagittal plane on CBCT scans at the bone crest and at 2, 4, and 6 mm apical to the crest at the site of maxillary central and lateral incisors. Data were analyzed by two‐way ANOVA and LSD test (alpha = 0.05).

Results

The distance between the cementoenamel junction (CEJ) of maxillary central and lateral incisors and alveolar bone crest in smokers was significantly greater than that in nonsmokers (p < 0.001). Smoking had no significant effect on alveolar BT at the crestal level or 2, 4, and 6 mm apical to the crest. BT at the crest and 2, 4, and 6 mm apical to the crest was significantly greater in thick, versus thin, GP (p < 0.001).

Conclusion

Smoking significantly increased the distance between the CEJ and alveolar crest at the site of central and lateral incisors but had no significant effect on BT.

Plain Language Summary

This study found that smoking significantly increased the distance between the cementoenamel junction and the alveolar bone crest in maxillary incisors but did not affect alveolar bone thickness, which was greater in individuals with a thick gingival phenotype compared to those with a thin gingival phenotype.
A Chinese Girl With LIG4 Syndrome and Hematopoietic Stem Cell Transplantation: A Rare Case Report and Review of the Literature
Authors: Jiang Chenjia , Wang Wenyang , Li Yazhou , Liu Xiwang , Zhu Zhirui
Published: December 2024

LIG4 syndrome is an exceptionally rare primary immune deficiency. It is an autosomal recessive genetic disease, falling within the spectrum of genetic disorders characterized by impaired DNA damage response mechanisms. Common clinical characteristics encompass microcephaly, growth retardation, developmental delays, facial deformities, variable immune deficiencies, pancytopenia, heightened susceptibility to malignant tumors, and significant clinical and cellular radiosensitivity. Hematopoietic stem cell transplantation (HSCT) is a curative treatment for LIG4 syndrome and may mitigate the long‐term risk of developing lymphoid malignancies by improving tumor surveillance.