bluuebunny/crossref_metadata_2025_split huggingface dataset:
Los indios leñadores, madereros y carboneros en la sociedad novohispana
Authors: Castro Gutiérrez Felipe 
Published: January 2023

Este artículo aborda el estudio de los indios que proveían de leña, carbón y madera a las ciudades y reales de minas de la Nueva España.
Procura demostrar que a pesar de su aparente modestia eran productos muy relevantes, y su ausencia o escasez podía tener serias consecuencias en la vida cotidiana y la buena marcha de varias actividades productivas. El texto describe las características y condiciones en que se realizaba esta labor y argumenta que este tránsito de hombres y mercancías incidía tanto en las urbes como en sus pueblos de origen. Sostiene, asimismo, que esta actividad no puede comprenderse en términos puramente económicos, dado que reflejaba las dualidades paralelas de campo/ciudad e indio/español.
Efecto antibacteriano del extracto de ajo (allium sativum) y té verde (camelia sinensis) sobre streptococcus mutans a las 24 y 48 horas en placa bacteriana bucal
Authors: Calisaya Chambi Sara Abigail , Coaquira Mamani Nuria Sumaira , Padilla Caceres Tania Carola , Maque Mamani Sulsy Sally 
Published: January 2023

Objetivo: Determinar la efectividad inhibitoria del extracto de Ajo (Allium Sativum) y Te verde (Camelia Sinensis) sobre Streptococcus Mutans a las 24 y 48 Horas. Material y métodos: Estudio cuasiexperimental, prospectivo y longitudinal. La muestra estuvo constituida por cepas de Streptococcus Mutans aisladas de la placa dental de pacientes previo consentimiento e inoculadas en 20 placas Petri en Agar Sangre con 60 repeticiones para cada tratamiento y un control positivo y negativo por cada placa. Se obtuvieron los extractos de Ajo (Allium Sativum) y Te verde (Camelia Sinensis) por el método de maceración y evaporación. El control positivo fue la clorhexidina al 0,12% y el control negativo el agua destilada. El efecto inhibitorio fue medido por el método de Kirby Bauer y McFarlad. Se observaron los halos de inhibición a las 24 y 48 horas. El análisis de datos se realizó con las pruebas estadísticas de t y Tukey. Resultados: El mejor efecto inhibitorio lo registra el extracto de Ajo (Allium Sativum) al 100% a las 24 horas con un promedio de 15.67mm de halo inhibición frente al Té verde (Camelia Sinensis) al 100% que obtuvo un promedio de 14.18mm. Conclusiones: El extracto de ambas plantas tienen efecto inhibitorio in vitro frente a las cepas de Streptococcus Mutans. El extracto de Ajo (Allium Sativum) tiene mayor efecto inhibitorio en relación al Té verde (Camelia Sinensis) tanto a las 24 y 48 horas. El principio activo de ambos extractos se redujo a las 48 horas por lo tanto también efecto inhibitorio.
Persepsi Masyarakat Dalam Kegiatan Antropogenik Yang Berpengaruh Terhadap Kerentanan Das Hulu Percut
Authors: Pakpahan Jennifer Sri Pinta 
Published: January 2023

ABSTRACT Anthropogenic danger is a danger that arises as a result of human actions or mistakes. Anthropogenic hazards can affect humans as well as wider ecosystems and various landforms. The influence of human activities on river ecosystems has encouraged the development of the concept of bioindicators to determine the health status of aquatic ecosystems. Percut river water quality is influenced by human activities that utilize the land around the river. The activities carried out by the community are for irrigation sources, pond irrigation, sand excavation and daily needs. Assessment of watershed vulnerability to anthropogenic activities using community perception approach. It is used because people's perceptions can directly build awareness and alertness in the face of danger and vulnerability. This study aims to determine the perception of society in anthropogenic activities in the upstream Percut watershed area and determine the relationship between the perception of the upstream Percut watershed to the behavior of anthropogenic activities that affect the vulnerability of watershed. This study uses survey methods. Data collection was done by: (a) Observation (observation), (b) structured and free interviews (questionnaires), and (c) secondary Data that support the research and the data were analyzed using Spearman rank correlation test. The results showed that the level of public perception in anthropogenic activities that affect the vulnerability of watershed is included in the category of moderate. Upstream communities assume that if the river is damaged, it will cause damage to the downstream, which will then affect the needs of the community directly. The perception and behavior of upstream peoples towards anthropogenic activities falls into the category of moderate. That means that there is no relationship between perception and behavior in the upstream Percut watershed quality. Keywords : Upstream Percut Watershed, Perception, Behavior, Anthropogenic
RANCANG BANGUN APLIKASI SISTEM INFORMASI KEGIATAN DAKWAH ISLAMI DI KOTA BAUBAU BERBASIS ANDROID
Authors: Mukmin Muhammad , Sabirin Abdul Rasyid , Supriadin Akmal 
Published: January 2023

<p><em>The development of technology is one of the keys to obtaining and disseminating information from various sources quickly. The delivery process of preasing activities are still not very effective and there are still many Islamic da'wah in mosques and Islamic organizations are not so widely known by the public, there are still many Islamic preaching delivered by the mudda'i not yet recorded and distributed with the help of social media. The purpose of this research is to design and build an Android-based application as an alternative media for the community in conveying Islamic propaganda information to the wider community. The methods used are observation method, data collection method, interview method, and library method, then the data is analyzed into the steps of making an application. This research resulted an Information System application in the android-based of Islamic Da'wah which is an alternative for the public to convey and see more actual information about Islamic da'wah especially in the city of Baubau.</em></p>
Uji Kuat Tekan Beton Dengan Pemanfaatan Abu Ampas Kopi Sebagai Substitusi Parsial Semen
Authors: Hartini Hartini 
Published: January 2023

Penelitian ini bertujuan untuk mengetahui seberapa besar pengaruh penambahan abu ampas kopi pada kuat tekan beton. Pada penelitian digunakan 4 variasi komposisi yaitu beton tanpa substitusi abu ampas kopi dan penambahan abu ampas kopi 2,5%, 5%, dan 7,5% terhadap berat semen. Pengujian ini meliputi uji karakterstik dan kuat tekan beton yang dilakukan pada umur perawatan 3, 7 dan 28 hari, dengan benda uji silinder dimensi 15 cm x 30 cm. Mutu beton rencana yaitu 20 MPa (200 Kg/cm2). Hasil dari nilai uji kuat tekan normal umur 3 hari sebesar 7,98 MPa, umur 7 hari sebesar 12,98 MPa, dan 28 hari sebesar 20,01 MPa, pada persentase 2,5% hasil uji kuat tekan umur 3 hari sebesar 8,27 MPa, umur 7 hari 13,66 MPa, dan umur 28 hari sebesar 20,97 MPa, pada persentase 5% hasil uji kuat tekan umur 3 hari 8,17 MPa, umur 7 hari 13,37 MPa, umur 28 hari 20,68 MPa, pada persentase 7,5% hasil uji kuat tekan umur 3 hari 8,08 MPa, umur 7 hari 13,18 MPa, dan 28 hari sebesar 20,39 MPa². Dari hasil rata-rata uji kuat tekan umur 28 hari diperoleh bahwa persentase 2,5%, 5%, dan 7,5% mengalami peningkatan berkisar 1,54%-5,24% terhadap nilai kuat tekan beton normal.
NHIỄM MYCOPLASMA GENITALIUM TRÊN BỆNH NHÂN ĐẾN KHÁM VÀ TƯ VẤN VỀ CÁC BỆNH LÂY TRUYỀN QUA ĐƯỜNG TÌNH DỤC TẠI BỆNH VIỆN DA LIỄU TRUNG ƯƠNG
Authors: Trương Việt Hoàng , Lê Huyền My 
Published: January 2023

Mục tiêu nghiên cứu: Khảo sát tỷ lệ nhiễm nhiễm, mô tả đặc điểm lâm sàng và các yếu tố liên quan đến nhiễm Mycoplasma genitalium (MG) trên bệnh nhân đến khám và tư vấn về các bệnh lây truyền qua đường tình dục tại Bệnh viện Da liễu Trung Ương.
Đối tượng và phương pháp nghiên cứu: Nghiên cứu mô tả cắt ngang trên 664 bệnh nhân đến khám và tư vấn về các bệnh lây truyền qua đường tình dục, đồng ý làm xét nghiệm xác định đồng thời 11 tác nhân lây truyền qua đường tình dục.
Kết quả: M. genitalium được phát hiện ở 6,5% (43/664) bệnh nhân (nam, 8,1%; nữ, 2,9%). Trong số bệnh nhân nhiễm MG, 10 (23,3%) trường hợp đồng nhiễm với các tác nhân khác. Cụ thể: với UU/UP (16,3%), MH (7,0%), HPV 6/11 (7,0%), CT (4,7%) và TV (2,3%). Không có trường hợp nào đồng nhiễm với NG, HSV 1/2, HIV và Giang mai. Tỷ lệ mắc M. genitalium trong số bệnh nhân có triệu chứng là 12,7% (29/229). Biểu hiện lâm sàng của M. genitalium không điển hình, có thể gặp trong nhiều bệnh lý khác. Các yếu tố liên quan khá tương đồng với các tác nhân lây truyền qua đường tình dục khác. Nam giới là yếu tố có liên quan đáng kể tới nhiễm M. genitalium (OR = 4,90 (1,92 - 12,50)) và biểu hiện triệu chứng lâm sàng cũng liên quan đáng kể tới nhiễm M. genitalium (OR = 6,22 (3,04 – 12,73)).
Kết luận: M. genitalium là tác nhân lây truyền qua đường tình dục với tỷ lệ 6,5% (tương ứng 8,1% ở nam và 2,9 % ở nữ). Trong số bệnh nhân có triệu chứng, tỷ lệ mắc M. genitalium là 12,7% (29/229). Biểu hiện lâm sàng của bệnh dễ bị nhầm lần với các tác nhân khác lây truyền qua đường tình dục, không có triệu chứng lâm sàng đặc hiệu. Việc xét nghiệm PCR đặc hiệu đối với những bệnh nhân có triệu chứng để phát hiện nhiễm M. genitalium có thể là cần thiết.
PELAYANAN PASTORAL DI RUMAH TAHANAN KELAS IIA PALANGKARAYA
Authors: Dominikus Jose Toda  , Romanus Romas  , Silvester Adinuhgra  
Published: January 2023

Pelayan pastoral adalah suatu kegiatan penggembalaan untuk melayani sesama. Penelitian ini secara umum bertujuan untuk mendeskripsikan pelayanan pastoral baik gambaran rohani, bentuk pelayanan dan harapan warga binaan di Rumah Tahanan Kelas IIA Palangkaraya. Metode digunakan dalam penelitian ini adalah metode penelitian kualitatif dengan teknik pengumpulan data menggunakan observasi, wawancara dan dokumentasi. Langkah-langkah penelitian meliputi penentuan topik, profil informan, wawancara dengan informan, implikasi, sintesis, prospek atau kemungkinan yang terjadi.
MISI GEREJA DALAM MENINGKATKAN PENDIDIKAN IMAN UMAT DI PAROKI SANTA MARIA IMMACULATA WAYUN-PALU REJO
Authors: Rari Marliani  , Romanus Romas  , Fransiskus Janu Hamu  
Published: January 2023

Penelitian ini bertujuan untuk mengetahui misi Gereja dalam meningkatkan pendidikan iman umat. Penelitian ini diangkat berdasarkan fenomena yang tampak di lapangan yakni Gereja sudah melaksanakan misi perutusan untuk meningkatkan pendidikan iman umat seperti katekese, dan pendampingan pastoral. Namun, fenomena yang terjadi masih ada keterbatasan dalam pemahaman dan ketidaktahuan umat akan fungsi dan peranannya dalam tugas menggereja, kurang memahami setiap seruan-seruang gereja untuk meningkatkan pendidikan iman, dan kualitas ekonomi lemah. Hal ini masih terjadi karena lemahnya kualitas pendidikan iman dan pendidikan formal umat. Metode yang digunakan dalam penelitian ini adalah penelitian deskriptif kualitatif dengan teknik pengumpulan data menggunakan wawancara dan dokumentasi. Teknik analisis data penelitian ini menggunakan teknik analisis Miles and Huberman yang terbagi atas tiga tahap yaitu reduksi data, pengajian data dan penarikan kesimpulan. Simpulan dari penelitian ini ialah Gereja telah melaksanakan misi pendidikan iman umat. Namun, pada kenyataannya pendidikan iman umat masih lemah, hal ini disebabkan oleh beberapa faktor seperti lemahnya tingkat pendidikan formal umat, lemahnya ekonomi keluarga, dan pengaruh masyarakat sekitar, sehingga hal ini berdampak bagi perkembangan dan kemajuan Gereja. Harapan dari hasil penelitian ini adalah dapat memberi kontribusi bagi Gereja khususnya Paroki Santa Maria Immaculata Wayun Palu Rejo dalam penanganan pastoral pendidikan iman umat.
Técnica Pop-Up, una herramienta artística para el mejoramiento de la lectura, escritura y oralidad.
Authors: Pinto Vargas María Eugenia , Lozada Celis Mayerlin , Lozada Celis Nestor Ariel , Leon Galeano Jhon Ricardo 
Published: January 2023

Este artículo da a conocer el desarrollo del trabajo investigativo realizado bajo la modalidad proyecto sombrilla de la Corporación Universitaria Minuto de Dios. Se determinó la influencia de la transversalidad entre las Artes visuales y Lenguaje para el mejoramiento de los procesos de lectura, escritura y oralidad. Se aplicó a los estudiantes de los grados 1°, 2°,3° y 4°, 5° de la Escuela Rural El Tesoro de la Tempestuosa, sede perteneciente a la Institución Educativa Miradores de Llana Caliente, ubicada en el municipio de San Vicente de Chucuri, Santander- Colombia. El objetivo general fue analizar el aporte de las artes visuales como estrategia didáctica en los procesos de lectura, escritura y oralidad en el ámbito escolar de nuestro país, Colombia, que nos permitiera conocer un posible impacto positivo que promoviera hábitos de lectoescritura y expresión oral tras la intervención de este proyecto. De la misma manera, se plantearon objetivos específicos con el propósito de caracterizar los procesos del lenguaje y la efectividad en la implementación de las artes visuales como estrategia didáctica, permitiendo centrar la atención en conocer la motivación y la creatividad al momento de realizar las actividades artísticas propuestas. La investigación desarrollada se basó en la combinación de los enfoques cualitativos y cuantitativos, los cuales están enmarcados como enfoque mixto. Su ejecución se desarrolló en cuatro fases: exploratoria, trabajo de campo, analítica e informativa. Su finalidad fue determinar el impacto de las artes visuales en la adherencia de hábitos de lectura, escritura y oralidad mediante la realización de un libro Pop-Up por estudiante, en los cuales cada participante escribió su historia y finalmente diseñó su libro Pop-up. La aplicación de las artes visuales como estrategia didáctica, bajo la técnica de Pop-up, demostró ser una herramienta útil para mejorar las cinco competencias del área de lenguaje, pues se evidenció gran motivación por parte de los alumnos en la producción de textos cortos con referencia a su entorno, haciendo uso de su imaginación. De la misma manera, se motivaron a leer sus trabajos en público y aplicar una técnica artística en sus propias producciones, desarrollando y afianzando las competencias directamente relacionadas con lectura, escritura y oralidad.
Characterisation of Calcareous Soils in Mahboobnagar and Nalgonda District of Telangana State
Authors: Siddiqua Meraj , Sharma S. Harish Kumar , Shankariah M. , Triveni S. , Chary D. Srinivasa 
Published: January 2023

A survey was conducted in the year 2019-20 in old Mahboobnagar and Nalgonda district of Telangana state to study the characters of calcareous soils, based on effervescence with dilute.HCL the samples were collected and were analysed for its characters. Majority of soils collected were medium to high in CaCO3 status. All the soils collected were alkaline to highly alkaline in reaction. Soils were low to medium in available nitrogen and phosphorus content. The average pH, N, P2O5, K2O value recorded in these soils were 8.49, 77.19 kg ha-1, 6.215 kg ha-1, 72.88 kg ha-1 respectively. The main objective of the study is to know the properties of Calcareous soil and also to study the effect of calcium carbonate on the different properties of soil and therefore acorrelation study was conducted which reported that there is significant positive relationship is seen between CaCO3 content and pH and significant negative relationship is seen between CaCO3 content and available N and P2O5 in soil. No significant relationship is seen between CaCO3 content and EC and OC values.
Natural Cell Patches: Melanin Nanoparticles for MR Imaging‐Guided Antiatherosclerosis Therapy via Attenuating Macrophage Pyroptosis
Authors: Zu Ziyue , Sheng Jie , Qi Jianchen , Miao Yu , Zhang Yunming , Zheng Tao , Xiang Kaiyan , Wu Haoguang , Lu Guangming , Zhang Longjiang 
Published: January 2023

AbstractPyroptosis, characterized by inflammasome activation, membrane Gasdermin D (GSDMD)‐pore formulation, and the rapid release of inflammatory cytokines, can induce plaque instability and atherosclerosis progression. Nevertheless, insights into the precise antiatherosclerosis therapies targeting pyroptosis remain limited. Here, a novel biomedical application of natural polyphenol melanin as a theranostic antipyroptosis defense nanoplatform for atherosclerosis is reported. Ultrasmall melanin nanoparticles are easily fabricated and functionalized with cyclo‐Arg‐Gly‐Asp‐d‐Tyr‐Lys conjugated polyethylene glycol to yield cRGD‐PEG‐MNPs (RpMPs) to target plaque neovascularization, which is confirmed by fluorescence imaging. Importantly, RpMPs act like cell patches to suppress pyroptosis in lipopolysaccharide‐stimulated macrophages by scavenging reactive oxygen species, downregulating the expression levels of pyroptosis‐related proteins (NLRP3, Caspase 1, and GSDMD) and reducing the leakage of inflammatory cytokines (interleukin‐1β, interleukin‐6, and tumor necrosis factor‐α). In vivo studies further reveal that RpMPs can ameliorate the development and improve the stability of atherosclerotic plaques via attenuating NLRP3‐stimulated pyroptosis and inducing an anti‐inflammatory phenotype in the aorta of ApoE−/− mice. Moreover, chelator‐free Gd3+‐RpMPs exhibit persistent T1‐weighted contrast‐enhanced efficiency and plaque resident on a 9.4 T Micro magnetic resonance scanner in murine atherosclerosis model. Overall, this study suggests the potential for using melanin to develop natural multifunctional nanoplatforms for molecular theranostic in atherosclerosis and other pyroptosis‐related diseases.
Pd–PdO Nanodomains on Amorphous Ru Metallene Oxide for High‐Performance Multifunctional Electrocatalysis
Authors: Do Viet‐Hung , Prabhu P , Jose Vishal , Yoshida Takefumi , Zhou Yingtang , Miwa Hiroko , Kaneko Takuma , Uruga Tomoya , Iwasawa Yasuhiro , Lee Jong‐Min 
Published: January 2023

AbstractDeveloping highly efficient multifunctional electrocatalysts is crucial for future sustainable energy pursuits, but remains a great challenge. Herein, a facile synthetic strategy is used to confine atomically thin Pd–PdO nanodomains to amorphous Ru metallene oxide (RuO2). The as‐synthesized electrocatalyst (Pd2RuOx‐0.5 h) exhibits excellent catalytic activity toward the pH‐universal hydrogen evolution reaction (η10 = 14 mV in 1 m KOH, η10 = 12 mV in 0.5 m H2SO4, and η10 = 22 mV in 1 m PBS), alkaline oxygen evolution reaction (η10 = 225 mV), and overall water splitting (E10 = 1.49 V) with high mass activity and operational stability. Further reduction endows the material (Pd2RuOx‐2 h) with a promising alkaline oxygen reduction activity, evidenced by high halfway potential, four‐electron selectivity, and excellent poison tolerance. The enhanced catalytic activity is attributed to the rational integration of favorable nanostructures, including 1) the atomically thin nanosheet morphology, 2) the coexisting amorphous and defective crystalline phases, and 3) the multi‐component heterostructural features. These structural factors effectively regulate the material's electronic configuration and the adsorption of intermediates at the active sites for favorable reaction energetics.
Correlated Intrinsic Electrical and Chemical Properties of Epitaxial WS2 via Combined C‐AFM and ToF‐SIMS Characterization
Authors: Spampinato Valentina , Shi Yuanyuan , Serron Jill , Minj Albert , Groven Benjamin , Hantschel Thomas , van der Heide Paul , Franquet Alexis 
Published: January 2023

AbstractAtomically thin, 2D semiconductors, such as transition metal dichalcogenides, complement silicon in ultra‐scaled nano‐electronic devices. However, the semiconductor and its interfaces become increasingly more difficult to characterize chemically and electrically. Conventional methodologies, including scanning probe microscopies, fail to capture insight into the chemical and electronic nature of the semiconductor, albeit vital to understand its impact on the semiconductor performance. Therefore, this work presents a unique and universal in situ approach combining time‐of‐flight secondary ion mass spectrometry and atomic force microscopy to map chemical differences between regions of different electrical conductivity in epitaxially deposited tungsten disulfide (WS2) on sapphire substrates. Surprisingly, WS2 regions of lower electrical conductivity possess a larger amount of sulfur compared to regions with higher conductivity, for which oxygen is also detected. Such difference in chemical composition likely roots from the non‐homogeneously terminated sapphire starting surface, altering the WS2 nucleation behavior and associated defect formation between neighboring sapphire terraces. These resulting sapphire terrace‐dependent doping effects in the WS2 hamper its electrical conductivity. Thus, accurate chemical assignment at a sub‐micrometer lateral resolution of atomically thin 2D semiconductors is vital to achieve a more detailed understanding on how the growth behavior affects the electrical properties.
Varifocal Metalens Using Tunable and Ultralow‐loss Dielectrics
Authors: Wang Mengyun , Lee June Sang , Aggarwal Samarth , Farmakidis Nikolaos , He Yuhan , Cheng Tangsheng , Bhaskaran Harish 
Published: January 2023

AbstractThe field of flat optics that uses nanostructured, so‐called metasurfaces, has seen remarkable progress over the last decade. Chalcogenide phase‐change materials (PCMs) offer a promising platform for realizing reconfigurable metasurfaces, as their optical properties can be reversibly tuned. Yet, demonstrations of phase‐change metalenses to date have employed material compositions such as Ge2Sb2Te5, which show high absorption in the visible to near‐IR wavelengths particularly in their crystalline state, limiting the applicability. Here, by using a low‐loss PCM Sb2Se3, for the first time, active polarization‐insensitive phase‐change metalenses at near‐IR wavelengths with comparable efficiencies in both material states are shown. An active metalens with a tunable focusing intensity of 95% and a focusing efficiency of 23% is demonstrated. A varifocal metalens is then demonstrated with a tunable focal length from 41 to 123 µm with comparable focusing efficiency (5.7% and 3%). The ultralow‐loss nature of the material introduces exciting new possibilities for optical communications, multi‐depth imaging, beam steering, optical routing, and holography.
Fe‐Doped Carbon Dots as NIR‐II Fluorescence Probe for In Vivo Gastric Imaging and pH Detection
Authors: Ci Qiaoqiao , Wang Yuanyuan , Wu Ben , Coy Emerson , Li Jiao jiao , Jiang Daoyong , Zhang Pengfei , Wang Guocheng 
Published: January 2023

AbstractCarbon dots (CDs) with excellent cytocompatibility, tunable optical properties, and simple synthesis routes are highly desirable for use in optical bioimaging. However, the majority of existing CDs are triggered by ultraviolet/blue light, presenting emissions in the visible/first near‐infrared (NIR‐I) regions, which do not allow deep tissue penetration. Emerging research into CDs with NIR‐II emission in the red region has generated limited designs with poor quantum yield, restricting their in vivo imaging applications due to low penetration depth. Developing novel CDs with NIR‐II emissions and high quantum yield has significant and far‐reaching applications in bioimaging and photodynamic therapy. Here, it is developed for the first time Fe‐doped CDs (Fe‐CDs) exhibiting the excellent linear relationship between 900–1200 nm fluorescence‐emission and pH values, and high quantum yield (QY‐1.27%), which can be used as effective probes for in vivo NIR‐II bioimaging. These findings demonstrate reliable imaging accuracy in tissue as deep as 4 mm, reflecting real‐time pH changes comparable to a standard pH electrode. As an important example application, the Fe‐CDs probe can non‐invasively monitor in vivo gastric pH changes during the digestion process in mice, illustrating its potential applications in aiding imaging‐guided diagnosis of gastric diseases or therapeutic delivery.