bluuebunny/crossref_metadata_2025_split huggingface dataset:
Efecto probiótico del BIOPRANAL sobre los indicadores bioproductivos y de salud en terneros
Authors: Marin-Cárdenas Alfredo , Garcia A , Gutiérrez Parra Marisol , González Castellanos Mabel , Ochieng O. 
Published: May 2023

Para el estudio del efecto probiótico de la biomasa proteica para la alimentación animal (BIOPRANAL) en terneros, se seleccionaron 40 animales de la raza Siboney en la categoría de neonatos, con un peso vivo promedio de 34 kg ± 0,23 y un promedio de la altura de la cruz de 65 cm ± 1,5. Se confeccionaron 2 grupos experimentales (control y estudio) con 20 terneros cada uno, con un peso promedio entre los grupos similares. Se suministró al grupo estudio 15 ml de BIOPRANAL/ternero/día por vía oral, en días alternos durante el periodo experimental que fue de 50 días. Los resultados obtenidos muestran un comportamiento para la ganancia de peso del grupo estudio superior al del control de 5,3 kg (p<0,05) y de igual manera la altura de la cruz es superior en dos centímetros, mientras que en los parámetros de salud el grupo control tuvo como aspecto negativo un 50% de presentación de enfermedades y un 10% de aumento de los linfocitos en la prueba hematológica sobre el grupo estudio, además con el suministro de este medio biológico se obtiene un beneficio económico del 28,0% que representa $24,8 de ganancia más por ternero sobre el grupo control, por lo que se concluye que el probiótico BIOPRANAL mejoró los indicadores bioproductivos y de salud de estos animales, así como el aspecto económico, por lo que se recomienda su uso en esta categoría bovina.
Influencia del uso de la tierra sobre almacenamiento de carbono en sistemas productivos y bosque primario en Napo, Reserva de Biosfera Sumaco, Ecuador
Authors: Jadán Oswaldo , Torres Navarrete Segundo Bolier , Günter Sven 
Published: May 2023

A pesar de la creciente evidencia del efecto de los sistemas productivos tradicionales sobre el secuestro y almacenamiento de carbono, pocas investigaciones se han realizado para examinar esta relación entre el bosque y sistemas productivos tradicionales con base a la mitigación al cambio climático, especialmente en ecosistemas amazónicos. La presente investigación se realizó en la zona baja de Reserva de la Biosfera Sumaco, en la Provincia de Napo, Amazonía ecuatoriana. Se determinó el promedio de almacenamiento de Carbono (C) en la biomasa aérea y en el suelo, en siete sistemas de uso del suelo: Bosque primario, sistemas agroforestales tradicionales (chakras) con base al cultivo de cacao (sombra) propagados por semilla y por injertos, monocultivo de cacao propagado por semilla y por injertos y, chakras sin cacao con y sin sombra. Como resultado, de los sistemas agrícolas estudiados el sistema chakra con cacao propagado por semilla es el ecosistema productivo que almacena la mayor cantidad de C con un promedio de 141.4 Mg C ha-1, cantidad relativamente alta si se lo compara con el bosque primario que almacena un promedio de 334 Mg C ha-1 en la misma zona. El componente con mayor aporte al almacenamiento de carbono en el bosque es la biomasa viva con el 79.1% y, en los sistemas agrícolas el suelo con rangos de 48.9 a 90.2%.
Kajian Awal Potensi Ekstrak Kulit Buah Lontar (Borassus Flabellifer L) sebagai Dye Alami untuk Dye Sensitized Solar Cell (Dssc)
Authors: Lemau Alexia , K.Pingak Redi , Z. Johannes Albert 
Published: May 2023

Telah dilakukan penelitian tentang kajian awal potensi ekstrak kulit buah lontar (Borassus Flabellifer L) sebagai dye alami untuk Dye Sensitized Solar Cell ( DSSC). Tujuan penelitian ini adalah menentukan nilai jangkauan serapan, koefisien serapan, nilai celah energi dan potensi ekstrak kulit lontar sebagai dye alami untuk Dye Sensitized Solar Cell (DSSC). Kulit lontar yang diambil dari Ileape, Kabupaten Lembata dikeringkan dan dihaluskan menggunakan blender, kemudian serbuk kulit lontar diekstraksi secara maserasi, setelah itu dievaporasi menggunakan evaporator. Langkah berikutnya hasil evaporasi diencerkan ulang dengan etanol sehingga dapat dikarakterisasi menggunakan spektrofotometer UV-Vis untuk mendapatkan spektrum serapan. Berdasarkan data hasil spektrum serapannya, jangkauan serapan senyawa ekstrak kulit lontar dengan konsentrasi 100 ppm, 200 ppm, 300 ppm, adalah 200 nm sampai 393 nm. Hasil analisis spektrum serapan menggunakan metode Tauc Plot memberikan nilai celah energi rata- rata sebesar 3.43 eV. Berdasarkan nilai celah energi tersebut senyawa ekstrak kulit buah lontar berpotensi untuk digunakan sebagai dye alami untuk Dye Sensitized Solar Cell ( DSSC).
Analisis Keterkaitan Arus Pasang Surut dan Pasang Surut di Wilayah Perairan Laut Flores Studi Kasus Labuan Bajo dan Maumere
Authors: Waru Anastasia 
Published: May 2023

Telah dilakukan penelitian analisis keterkaitan arus pasang surut dan pasang surut di wilayah perairan Laut Flores studi kasus Labuan Bajo dan Maumere. Penelitian ini bertujuan untuk menentukan pola arus pasang surut saat pasang surut serta keterkaitan arus pasang surut dan pasang surut antara alur pelayaran Barat Surabaya dengan Labuan Bajo, Selat Capalulu dengan Maumere. Data yang digunakan adalah data sekunder yang diperoleh dari Kantor Distrik Navigasi Kelas II Kupang. Pengolahan data dengan menggunakan metode grafis dan transformasi faurier cepat (FFT) dengan software matlab untuk dianalisa gelombang arus pasang surut dan frekuensi arus pasang surut agar dapat menentukan pola dan keterkaitan arus pasang surut dengan pasang surut. Berdasarkan hasil pengolahan data, pola kecepatan arus pasang surut yang terdapat di daerah penelitian adalah saat pasang aliran air menuju ke Utara, saat surut aliran air menuju ke Selatan dengan memiliki keterkaitan yaitu dipengaruhi perambatan pasang surut dari Samudera Hindia, morfologi perairan dan keadaan meteorologi. Tipe arus pasang surut dari kedua lokasi merupakan tipe arus bolak-balik atau reversing current.
Kajian Optimasi Rute Terpendek Menggunakan Metode Simulated Annealing untuk Distribusi Obat pada Jaringan Apotek Kimia Farma di Kota Kupang
Authors: Tani'i Fermina , Warsito Ali , Lapono Laura A.S 
Published: May 2023

Telah dilakukan kajian optimasi untuk menganalisis perjalanan distributor obat pada apotek kimia Farma di kota Kupang. Optimasi menjadi sebuah persoalan komputasi sehingga dapat diterapkan dalam kehidupan sehari-hari seperti distribusi obat. Metode yang digunakan dalam penelitian ini adalah metode simulated annealing dengan memanfaatkan perangkat lunak Matlab 2013a. Simulasi dari model yang dirancang bertujuan mencari rute terpendek proses distribusi yang memenuhi kriteria memiliki energi minimum dan keadaan cooling schedule. Visualisasi bekerja pada 9 titik apotek kimia farma di Kota Kupang yakni Apotek Kimia Farma Herewila (1), Apotek Kimia Farma Oesapa (2), Apotek Kimia Farma Ahmad Yanni (3), Apotek Kimia Farma TDM(4), Apotek Kimia Farma Naikolan (5), Apotek Kimia Farma Lippo (6), Apotek Kimia Farma Lalamentik (7), Apotek Kimia Farma Hatta 135 (8) dan Apotek Kimia Farma Hatta 46 (9). Pada pengujian ini model dengan simulasi didapatkan energi minimum= 1.641461 satuan, suhu= 5 satuan derajat, jarak terpendek= 0.114017543, dengan rute=1-5-7-4-2-6-3-8-9-1.
Prevalence of Treponema pallidium amongst Students of Delta State University, South-South Nigeria
Authors: Oghenemaro Enwa Felix , Chinedu Okolugbo Bernard , Akpevwe Egberi 
Published: May 2023

Objective: Infection due to Treponema pallidum (syphilis) is a major challenge and continues to be a public health problem around the world. It is a bacterial infection transmitted commonly through sexual contact, blood and also through mother-to-child (vertical). A cross-sectional study to investigate the prevalence of syphilis among students of Delta State University, Abraka was carried out between September 2022 and January 2023.
Method: Data and blood samples were collected randomly from 500 participants from the various faculties of the University. Blood samples were collected in EDTA bottles following aseptic techniques and subsequently screened for syphilis using the rapid test (RT) method.
Results: Of the 500 samples screened, 143 were positive for T. pallidium giving an overall prevalence of 48.6%. Students from the faculty of science recorded the highest prevalence of 68%, this was followed by students from the faculty of Arts (33%) while students from the faculty of Basic Medical Sciences recorded the least prevalence of 15%. This difference in prevalence among the faculties was statistically insignificant (P=0.695). Overall, a higher prevalence (40.4%) was recorded for males than females (16.8%) (P=1.24). The highest prevalence of 42% was recorded among males from the faculty of science while the lowest was recorded among females from the faculty of Education. The difference in prevalence among genders in the various faculties when compared was not statistically significant (P=0.201).
Conclusion: This study has revealed a relatively high level of infection with syphilis (T. palladium) among students of Delta State University Abraka and should be a concern. There is therefore a dire need for proper enlightenment on this disease and behavioural change among this vulnerable population.
Polyethylene Based Ionomers as High Voltage Insulation Materials
Authors: D'Auria Silvia , Pourrahimi Amir Masoud , Favero Alessia , Neuteboom Peter , Xu Xiangdong , Haraguchi Shuichi , Bek Marko , Kádár Roland , Dalcanale Enrico , Pinalli Roberta , Müller Christian , Vachon Jérôme 
Published: May 2023

AbstractPolyethylene based ionomers are demonstrated to feature a thermo‐mechanical and dielectric property portfolio that is comparable to cross‐linked polyethylene (XLPE), which may enable the design of more sustainable high voltage direct‐current (HVDC) power cables, a crucial component of future electricity grids that seamlessly integrate renewable sources of energy. A new type of ionomer is obtained via high‐pressure/high‐temperature free radical copolymerization of ethylene in the presence of small amounts of ion‐pair comonomers comprising amine terminated methacrylates and methacrylic acid. The synthesized ionomers feature a crystallinity, melting temperature, rubber plateau modulus and thermal conductivity like XLPE but remain melt‐processable. Moreover, the preparation of the ionomers is free of byproducts, which readily yields a highly insulating material with a low dielectric loss tangent and a low direct‐current (DC) electrical conductivity of 1 to 6·10−14 S m−1 at 70 °C and an electric field of 30 kV mm−1. Evidently, the investigated ionomers represent a promising alternative to XLPE‐based high voltage insulation, which may permit to ease the production as well as end‐of‐use recycling of HVDC power cables by combining the advantages of thermoset and thermoplastic materials while avoiding the formation of byproducts.
3D Prestress Bioprinting of Directed Tissues
Authors: Li Yuanrong , Wu Jianguo , He Chuanjiang , He Honghui , Xie Mingjun , Yao Ke , He Jing , Duan Yan , Zhaung Liujing , Wang Ping , He Yong 
Published: May 2023

AbstractMany mammalian tissues adopt a specific cellular arrangement under stress stimulus that enables their unique function. However, conventional 3D encapsulation often fails to recapitulate the complexities of these arrangements, thus motivating the need for advanced cellular arrangement approaches. Here, an original 3D prestress bioprinting approach of directed tissues under the synergistic effect of static sustained tensile stress and molecular chain orientation, with an aid of slow crosslinking in bioink, is developed. The semi‐crosslinking state of the designed bioink exhibits excellent elasticity for applying stress on the cells during the sewing‐like process. After bioprinting, the bioink gradually forms complete crosslinking and keeps the applied stress force to induce cell‐orientated growth. More importantly, multiple cell types can be arranged directionally by this approach, while the internal stress of the hydrogel filament is also adjustable. In addition, compared with conventional bioprinted skin, the 3D prestress bioprinted skin results in a better wound healing effect due to promoting the angiogenesis of granulation tissue. This study provides a prospective strategy to engineer skeletal muscles, as well as tendons, ligaments, vascular networks, or combinations thereof in the future.
Fundamentals of Skin Bioimpedances
Authors: Lo Presti Andrea , Montoya Nerio Andrés , Criscuolo Valeria , Khan Gulaly , Khan Usman , Vecchione Raffaele , Falconi Christian 
Published: May 2023

AbstractThe bioimpedances of tissues beyond the stratum corneum, which is the outermost layer of skin, contain crucial clinical information. Nevertheless, bioimpedance measurements of both the viable skin and the adipose tissue are not widely used, mainly because of the complex multilayered skin structure and the electrically insulating nature of the stratum corneum. Here, a theoretical framework is established for analyzing the impedances of multilayered tissues and, in particular, of skin. Then, strategies are determined for the system‐level design of electrodes and electronics, which minimize 4‐wire (or tetrapolar) measurement errors even in the presence of a top insulating tissue, thus enabling non‐invasive characterizations of tissues beyond the stratum corneum. As an example, non‐invasive measurements of bioimpedances of living tissues are demonstrated in the presence of parasitic impedances which are much (e.g., up to 350 times) higher than the bioimpedances of the living tissues beyond the stratum corneum, independently on extreme variations of the barrier (tape stripping) or of the skin–electrode contact impedances (sweat). The results can advance the development of bioimpedance systems for the characterization of viable skin and adipose tissues in several applications, including transdermal drug delivery and the assessment of skin cancer, obesity, dehydration, type 2 diabetes mellitus, cardiovascular risk, and multipotent adult stem cells.
A Personalized Cancer Vaccine that Induces Synergistic Innate and Adaptive Immune Responses
Authors: Kuen Da‐Sol , Hong Jihye , Lee Suyoung , Koh Choong‐Hyun , Kwak Minkyeong , Kim Byung‐Seok , Jung Mungyo , Kim Yoon‐Joo , Cho Byung‐Sik , Kim Byung‐Soo , Chung Yeonseok 
Published: May 2023

AbstractTo demonstrate potent efficacy, a cancer vaccine needs to activate both innate and adaptive immune cells. Personalized cancer vaccine strategies often require the identification of patient‐specific neoantigens; however, the clonal and mutational heterogeneity of cancer cells presents inherent challenges. Here, extracellular nanovesicles derived from alpha‐galactosylceramide‐conjugated autologous acute myeloid leukemia (AML) cells (ECNV‐αGC) are presented as a personalized therapeutic vaccine that activates both innate and adaptive immune responses, bypassing the need to identify patient‐specific neoantigens. ECNV‐αGC vaccination directly engages with and activates both invariant natural killer T (iNKT) cells and leukemia‐specific CD8+ T cells in mice with AML, thereby promoting long‐term anti‐leukemic immune memory. ECNV‐αGC sufficiently serves as an antigen‐presenting platform that can directly activate antigen‐specific CD8+ T cells even in the absence of dendritic cells, thereby demonstrating a multifaceted cellular mechanism of immune activation. Moreover, ECNV‐αGC vaccination results in a significantly lower AML burden and higher percentage of leukemia‐free survivors among cytarabine‐treated hosts with AML. Human AML‐derived ECNV‐αGCs activate iNKT cells in both healthy individuals and patients with AML regardless of responsiveness to conventional therapies. Together, autologous AML‐derived ECNV‐αGCs may be a promising personalized therapeutic vaccine that efficiently establishes AML‐specific long‐term immunity without requiring the identification of neoantigens.
Template‐Assisted Fabrication of Flexible Perovskite Scintillators for X‐Ray Detection and Imaging
Authors: Li Yuwei , Xu Yalun , Yang Yujie , Jia Zhenglin , Tang Haitao , Patel Jay B. , Lin Qianqian 
Published: May 2023

AbstractMetal halide perovskites have recently emerged as exceptional scintillator materials for ionizing radiation detection devices. Their chemical composition consists of elements with high atomic numbers, leading them to have a high attenuation coefficient. Their high attenuation coefficient, in combination with their excellent optoelectronic properties, versatile chemical tunability, and facile and low‐cost fabrication processes, makes them the ideal scintillator material. However, existing perovskite‐based scintillators suffer from poor material stability, especially in humid atmospheres. Moreover, current perovskite films have morphologies that have been optimized for photovoltaics, which results in the relatively long charge carrier lifetimes, a property that is detrimental for fast scintillation. Furthermore, existing reports of perovskite‐based scintillators have shown limited spatial resolution due to poor light transmittance that arises from light scattering from large aggregates of perovskite grains. To address these issues, this work introduces a template‐assisted in situ polymerization‐based process to prepare perovskite/polymer composite scintillators that simultaneously reduces afterglow effects, improves perovskite stability, and is industrially scalable. The optimized perovskite scintillators are then incorporated into X‐ray detection devices to investigate detection performance and device stability. Compared with existing commercial scintillators, the perovskite scintillators show superior detection performance metrics for imaging, indicating the great potential of perovskites for next‐generation, large‐area, and flexible scintillation screens.
Magneto‐Mechano‐Electric Antenna for Portable VLF Transmission
Authors: Wu Hanzhou , Jiang Tao , Liu Zhen , Fu Shifeng , Cheng Jiawei , You Haoran , Jiao Jie , Bichurin Mirza , Sokolov Oleg , Ivanov Sergey , Wang Yaojin 
Published: May 2023

AbstractWireless communication has always been an indispensable element in the modern information‐based society. Beyond the commercial electrical antenna, very low frequency (VLF) mechanical antennas have recently become research hotspot since their combination of miniaturization and favorable radiation efficiency in lossy electrically conductive environments. However, their usage is challenged due to the relatively limited radiation capability and modulation bandwidth. This study demonstrates an improved high‐efficiency magnetoelectric (ME) mechanical antenna based on the magneto‐mechano‐electric (MME) effect, realized via the synergistic effect of piezo‐driven magnets motion and converse magnetoelectricity (ME). Converse ME coefficient and radiation measurement show that the MME antenna demonstrates superior performance over a normal ME antenna. The oscillation magnet serves as an extra vibrating magnetic dipole besides the ME composite and thus brings radiation enhancement to the mechanical antenna. Furthermore, digital signal modulations are conducted with a VLF carrier signal to enable anti‐interference and anti‐attenuation communication. In view of the exemplary demonstration, the MME effect‐based antenna is expected to provide a new strategy for mechanical antenna improvement and shows tremendous potential for conductive environments communication applications.
Festuca sp. interfere with germination and early growth of three weeds
Authors: Hahn Daniel , Leinauer Bernhard , Bastiaans Lammert , VanLeeuwen Dawn M. 
Published: May 2023

AbstractHerbicide restrictions require alternative strategies for turfgrass weed control. This growth chamber study investigated the interference of 27 Festuca cultivars selected from five Festuca species using white clover (Trifolium repens L.), lawn daisy (Bellis perennis L.), and yarrow (Achillea millefolium L.) as indicator species. At 13 days after sowing (DAS), 20 weed seeds were placed in between 60 grass seeds. Lawn daisy was highly sensitive to the presence of all grasses, and results are not presented. Festuca species or individual cultivars did not affect the germination percentage and mean germination period of white clover and yarrow. The presence of tall fescue [Schedonorus arundinaceus (Schreb.) Dumort., nom. cons.]) species reduced white clover root length by 71.6% and slender creeping red fescue [Festuca rubra L. ssp. littoralis (G.Mey.) Auquier] by 44.5% at 30 DAS. Within cultivars, reductions of white clover roots ranged from 81.7% (Regenerate) to 24.8% (Cathrine). Root length for yarrow was reduced by an average of 75% with no difference among Festuca species. Cultivar effects ranged from 91.8% for Barcesar to 62.9% for Samanta. For both white clover and yarrow, negative correlations were determined between Festuca biomass and the root length of both weeds: −0.241*** (white clover) and yarrow −0.168* (yarrow). Such a relationship suggests that part of the inhibiting effect can be directly attributed to Festuca biomass. We conclude that differences in interference potential between cultivars within species are as important as differences between species. White clover appeared to be the most discriminative species for growth interference studies with Festuca.
Acute myocardial infarctions identified in the Manitoba Occupational Disease Surveillance System: A linkage of worker's compensation and provincial health data
Authors: Kraut Allen , Peters Cheryl E. , Rydz Ela , Walld Randy 
Published: May 2023

AbstractIntroductionThe purpose of this study was to identify jobs and industries that may be associated with increased or decreased risk of myocardial infarction.MethodsWe linked provincial health care data with Workers Compensation Board (WCB) of Manitoba claims data to create the Manitoba Occupational Disease Surveillance System (MODSS). Workers were eligible for inclusion in this study if their WCB claim listed an occupation, their claim could be linked to health data, they had an accepted non‐acute myocardial infarction (AMI) compensation time loss claim and were free of a recent (<1 year) AMI diagnosis at the start of disease follow‐up. AMI cases were identified as the most‐responsible diagnosis in the hospitalization file (ICD‐9 410 or ICD‐10 I20). Cases were included if they occurred after the WCB record injury date until end of coverage, either through moving out of province, reaching age 65, death, or the end of the study period (March 1, 2020).ResultsWe identified 1880 incident AMIs amongst 150,022 claims recorded in the MODSS (1.25%). A number of industries and occupations were found to have higher and lower AMI rates. Care providers and educational, legal, and public protection support occupations had a lower hazard ratio (HR; 0.64; 95% confidence interval [CI]: 0.44–0.92) compared to the overall cohort. Female chefs and cooks, and male butchers and bakers had elevated AMI HRs. Both male and female transport and heavy equipment operators and related maintenance occupations had increased HRs (1.48; 95% CI: 1.30–1.67). Often male and female workers employed in the same occupations had congruent AMI risks, but this was not always the case.ConclusionsThe linkage of a WCB data set with provincial health claims data led to the identification of a number of occupations with elevated risks of AMI in Manitoba. This was most notable in the transportation industry. Identifying work areas with increased risk of AMIs could lead to targeted educational efforts and potential workplace modifications to lower this risk.