bluuebunny/crossref_metadata_2025_split huggingface dataset:
Tecnologías de seguridad para empresas en Guayaquil
Authors: Sánchez Ramírez Fernando Paul , Andaluz Granda Lenin Mauricio 
Published: March 2024

En un mundo cada vez más informatizado, globalizado, y competitivo resulta imprescindible proteger los bienes y recursos personales, empresariales y gubernamentales. La seguridad se ha convertido en una preocupación fundamental. Las tecnologías de seguridad desempeñan un papel crucial en la protección de datos, sistemas, redes y activos empresariales. La ciudad de Guayaquil enfrenta una realidad desafiante en términos de seguridad empresarial, afectando la estabilidad y prosperidad de las empresas locales. En este sentido la investigación tiene como objetivo proponer estrategias tecnológicas para incrementar la seguridad en las empresas de Guayaquil. Se utilizó el paradigma de investigación mixto, con un enfoque de vinculación de métodos teóricos y empíricos. Se emplearon entrevistas semiestructuradas y encuestas y se consultaron documentos oficiales para obtener información pertinente. La muestra fue seleccionada con muestreo probabilístico y no probabilístico. Se obtuvieron como resultados las principales limitaciones en el uso de tecnologías de seguridad. Se propuso una estrategia tecnológica para incrementar la seguridad de las empresas en Guayaquil. La estrategia integral combina la selección de tecnologías avanzadas de seguridad física, cibernética, y de seguridad informática, además de educación en ciberseguridad, y medidas específicas adaptadas a las necesidades locales de las empresas para incrementar la seguridad empresarial en la ciudad de Guayaquil.
PERAN GURU PENDIDIKAN AGAMA KRISTEN SEBAGAI TELADAN DALAM KEROHANIAN DAN KARAKTER PESERTA DIDIK DI SMK
Authors: Prastawa Singgih , Malau Ezra Gibbor Ronggur 
Published: March 2024

Penelitian ini didasarkan pada Peran Guru Pendidikan Agama Kristen sebagai teladan dalam meningkatkan kerohanian dan karakter peserta didik. Tujuan penelitian ini untuk menjelaskan peran guru dalam meningkatkan kerohanian dan karakter peserta didik, haruslah menjadi prioritas dalam pembelajaran sebagai bentuk mengimplikasikan nilai secara afektif. Metode yang digunakan dalam penelitian ini adalah menggunakan meotde deskriptif kualitatif dengan subjek guru pendidikan agama kristen. Teknik pengumpulan data dari penelitian ini berupa wawancara Hasil dari penelitian di tempat penelitian menunjukkan bahwa guru dalam memberikan sebuah teladan bagi kerohanian siswa menunjukkan adanya pengalaman belajar yang menyenangkan dan memiliki tanggung jawab dalam mengejarkan tugas. Adapun kelemahan dari penelitian ini adalah guru memberikan teladan bagi siswa adalah siswa kurang aktif dalam kegiatan ibadah, adapun kelebihan dalam guru memberikan teladan bagi siswa adalah membuat kerohanian siswa dalam mengikuti ibadah semakin aktif, guru harus menyadari bahwa guru Pendidikan Agama Kristen sebagai pemimpin keteladanan. Guru bekerja sama dengan gereja dan keluarga membawa dalam peningkatan kerohanian dan karakter. Dan yang terakhir Guru harus dipimpin Roh Kudus. Kesimpulan dari penelitian ini adalah meningkatkan Sumber daya manusia dan membawa anak didik bertumbuh dalam kerohanian dan karakter yang dapat membangun bangsa melalui pribadi yang tangguh mengandalkan Tuhan.
In-vitro Assessment of Fungicides and pH Levels on the Mycelial Growth and Sclerotia Production of Sclerotium rolfsii Sacc. causing White Rot of Onion in Manipur
Authors: Konjengbam Rimamay , Singh Naorem Iboton , Devi Rajkumari Tombisana 
Published: March 2024

Seven fungicides and five different pH levels were evaluated against Sclerotium rolfsii Saccardo, causing white rot of onion in Manipur. The efficacies of the fungicides were evaluated by poisoned food technique on potato dextrose agar. The effect of different pH levels was evaluated on potato dextrose broth by measuring dry mycelial weight and counting the number of sclerotia produced by the fungus. Three fungicides, namely, Hexaconazole (500 and 1000ppm), Propiconazole (500 and 1000ppm) and Mancozeb (1000 and 2000ppm), resulted 100% inhibition of mycelial growth and sclerotia production of the white rot pathogen. The mycelial growth and sclerotia production of S. rolfsii were minimal in pH 4.0, providing a total of 0.62g of dry mycelial weight and 1069 sclerotia. The maximum mycelial growth of 0.76g was recorded at pH 5.0, followed by 0.72g at pH 6.0. Maximum number of sclerotia were produced at pH 7.0, followed by pH 6.6. and 6.0 successively.
Effects of Weed Control on Growth and Yield of Pearl Millet (Pennisetum glaucum L.) in the Sudan Savanna, Sokoto State, Nigeria
Authors: Yusuf Yahaya Mohammad , Bagudo Haruna Abubakar , Uke Obinna Dominic 
Published: March 2024

A field experiment was conducted during the rainy season of 2018 at the Research Farm of Usmanu Danfodiyo University, Sokoto, to evaluate the effect of weed management on the growth and yield attributes of pearl millet (Pennisetum glaucum L.). Eight treatments of weed management regime and three replications were used in the RCBD experiment. Two different herbicides, Atrazine and Metolachlor, were applied at three different rates 0.8, 1.2, and 1.6 kg a.i. ha-1, weeding at 3 and 6 weeks after sowing (WAS) and control plot (weedy check). The experiment results show that weed control had significant impact on plant height at 6, 9 and 12 WAS, number of tillers, weed density, weed dry weight, weed control efficiency, panicle length, days to 50% heading and grain yield. In contrast, plant stands, plant height at 3 WAS, and 1000 grains weight had non-significant effects. Pre-emergence application of Metolachlor at 1.6 kg a.i ha-1 followed by supplementary hoe weeding at 6 WAS resulted in the lowest weed density (3, 30 and 24/1 m2 at 3, 6 and during harvest, respectively), the most inferior weed dry weight (60.7, 602.4, and 330.57 kg ha-1 at 3, 6 and during harvest, respectively), and the highest weed control quality (944.46%). This treatment yielded significantly more grain (3030.37 kg ha-1), possibly due to the substantially higher plant height (240.33 cm) and the number of tillers (5.2 hill-1) at harvest.
Introduction of foliar disease resistance into bean bruchid resistant genotypes and heritability studies at F2:3
Authors: Mbwebwe Aman Nuhu , Kusolwa P M , Kilasi N L 
Published: March 2024

Common bacterial blight (CBB), Bean common mosaic virus (BCMV) and Bean common Mosaic Necrosis Virus (BCMNV) are the most common foliar diseases affecting common bean worldwide. CBB and BCMV/BCMNV are caused by Xanthomonas axonopodis pv. phaseoli and group of Potyviruses respectively, contributing to high yield and quality losses in Tanzania. Chemical control has not been effective or economical on both of these seed borne diseases. Elsewhere, breeding for resistant cultivars have been reported to be effective and a long-term control measure. The objective of this study was to incorporate foliar disease resistance to CBB, BCMV and BCMNV from KT020 into existing bruchid resistant genotype BR 59-63-10. One way cross was performed under screen-house condition followed F1 advancement to F2 at which F2:3 was screened using SCAR markers i.e SAP6 for QTL-CBB, SW13 for I gene-BCMV and ROC11 for bc-3 gene-BCMNV resistance. Among forty individuals screened, nine derivatives had resistance to all diseases; seventeen had two resistance genes to either of the disease while ten derivatives of APAx KT020 had one resistance gene to either of the diseases. Results also showed positive correlation between phenotypic score and markers, while in phenotypic studies all individuals had resistance ranging from 1.40 to 3.29 on leaf lesions and 2.14 to 3.30 on pod severity for CBB based on 1-9 CIAT scale. High heritability of reduced infestation explained by 61.1% and 66.8% on leaf and pod symptoms respectively was obtained. Marker screening indicating a reliable procedure for selecting resistant individual using marker assisted selection (MAS).
Liming tropical high upland acid soils improves soil fertility and cardamom productivity
Authors: Murugan M , Dhanya M K , Aswathy T S , Ashokkumar Kaliyaperumal , Nimisha Mathews , Sathyan Thiravidamani , Surya Raj 
Published: March 2024

Increasing the productivity of Indian cardamom is revolving around both soil and forest canopy management. Maintaining tropical acid soil fertility and its productivity is the prime concern for successful cardamom cultivation under ongoing deforestation of fragmented rainforest. A field experiment with two doses each (1 and 2 kg plant-1) of burnt lime, dolomite and ground lime stone was carried out in an acidic soil. Results showed that all of the liming materials have had significant effect on correcting the soil acidity. Liming with dolomite at 2 kg plant-1 considerably improved soil chemical properties and increased the soil pH from very acidic to near neutral. Correction and improvement in the soil pH led to significantly enhance the growth and yield of cardamom. However, utmost care must be taken on the environmental implications of liming; particularly the ratio of soil Calcium and Magnesium as well as organic carbon loss and evolution of CO2.
Yield variability of soybean [Glycine max (L.) Merrill] as affected by foliar applied kaolin under irrigation in Sudan savanna of Nigeria
Authors: Madu A I , Mohammed I B , Sarkinfulani M , Muhammad A 
Published: March 2024

A field trial was conducted during the hot, dry season in 2020 to assess the effect of foliar-applied antitranspirant (Kaolin) on yield and yield components of irrigated soybean [Glycine max (L.) Merrill]. Treatments consisted of two varieties of soybean (TGX1835-10E and TGX1955-4F), three growth stages for the application of kaolin (node initiation, flower initiation, and pod initiation), and application rates (0%, 3%, 6%, and 9% w/v). The factors were factorially combined and laid out in a split-split-plot design and replicated three times. The result obtained after comparison between two varieties of soybean, three growth stages of foliar applied kaolin, and four kaolin rates indicated that variety, application at growth stage, and kaolin rates indicated higher significance, significance, and non-significance effects on measured; number of pods plant-1, seed pod-1, hundred seed weight (g), grain and fodder yield (kg ha-1) taken at harvest. The average yield of 2.3 t ha-1 was recorded in TGX1835-10E and 2.5 t ha-1 in TGX1955-4F. Kaolin applied at flower and pod initiation recorded a higher grain yield at BUK, and at Kadawa application at pod initiation recorded a higher grain yield. Kaolin rates applied at 3 and 6% averagely indicated grain yield of 2.8 t ha-1 and 2.7 t ha-1, respectively. Applying 3% kaolin rate is recommended for soybean production in area with low heat load (low temperature) on leaf surfaces within the growing cycle of the crop and 6% rate in area with higher heat load (higher temperature) on leaf surfaces.
AFTER THE EARTHQUAKES WITH EPICENTER IN KAHRAMANMARAŞ ON FEBRUARY 6, 2023; CRUSH SYNDROME
Authors: Aşkın Muhammed Faruk , Taştemur Şeyma , Gedikli Mustafa Asım , Candan Ferhan , Koc Yener 
Published: March 2024

One of the vital problems after earthquakes that caused many deaths and injuries is crush syndrome due to traumatic muscle damage.
After the two earthquakes of 7.7 and 7.6 magnitude affecting 11 provinces with the epicentre in Kahramanmaraş on 6 February 2023, 319 patients over the age of 18 were admitted to Sivas Cumhuriyet University Research and Practice Hospital between 6-14 February. 87 of 319 patients received inpatient follow-up and treatment. The age, gender, duration of stay in the rubble, province of residence, operation performed, duration of hospital stay, amount of fluid given in the first 24 hours, amount of urine output in the first 24 hours, body trauma sites, some laboratory parameters at the time of admission and during follow-up were retrospectively evaluated from the hospital records of all 43 patients diagnosed with crush syndrome among the inpatients between 6-28 February.
The age of the patients was 39±19.6 years, duration of stay under the cave-in (hours) 22.74±36.32, duration of hospitalization (days) 7.26±5.42, amount of fluid given in the first 24 hours (ml) 4954.18±3142, amount of urine output in the first 24 hours (ml) 2646.42±2262.65, admission creatinine (mg/dl) 1.59±2.25, admission creatine kinase (CK) (U/L) 11716.37±18520.
44.2% of the patients were female, 72.1% came from Kahramanmaraş province, 46.5% underwent surgical intervention, 67.4% had an admission CK above 1000 u/l, 14% received hemodialysis treatment, 46.5% had a duration of hospitalization shorter than 7 days to reach the CK reference range and 51.2% had a duration of hospitalization longer than 21 days.
The effect of other parameters on the duration of hospitalization and the time to reach the reference range of CK and correlation with laboratory parameters were analysed.
As a result, it is thought that the parameters affecting the time to reach the CK reference range and the duration of hospitalization can be used to calculate and reduce the duration of hospitalization in prospective crush syndrome cases.
Intra‐group aggression among prisoners: bullying intensity and exploration of victim‐perpetrator mutuality
Authors: Ireland Jane L. , Ireland Carol A. 
Published: July 2007

AbstractA new multiple indicator method of assessing bullying behaviour is employed (Direct and Indirect Prisoner behaviour Checklist – Scaled version [DIPC‐SCALED]) with 605 adult prisoners (487 men and 118 women). The study explores if the DIPC‐SCALED is a reliable method comprising of identifiable aggression factors; if prisoners can be classified into groups based on behavioural frequency; and if there is evidence for mutual victim/perpetrator groups. The DIPC‐SCALED proved reliable, comprising of a number of aggression factors. Prisoners could be classified into groups based on behavioural frequency with one‐fifth classified into an “intense” perpetrator and/or victim group. Evidence for mutual perpetrator/victims was found. Results are discussed with regards to the method used and the value in accounting for behavioural frequency in group classification. Aggr. Behav. 34:76–87, 2008. © 2007 Wiley‐Liss, Inc.
Identification of autoregressive models in the presence of additive noise
Authors: Diversi Roberto , Guidorzi Roberto , Soverini Umberto 
Published: July 2007

AbstractA common approach in modeling signals in many engineering applications consists in adopting autoregressive (AR) models, consisting in filters with transfer functions having a unitary numerator, driven by white noise. Despite their wide application, these models do not take into account the possible presence of errors on the observations and cannot prove accurate when these errors are significant. AR plus noise models constitute an extension of AR models that consider also the presence of an observation noise. This paper describes a new algorithm for the identification of AR plus noise models that is characterized by a very good compromise between accuracy and efficiency. This algorithm, taking advantage of both low and high‐order Yule–Walker equations, also guarantees the positive definiteness of the autocorrelation matrix of the estimated process and allows to estimate the equation error and observation noise variances. It is also shown how the proposed procedure can be used for estimating the order of the AR model. The new algorithm is compared with some traditional algorithms by means of Monte Carlo simulations. Copyright © 2007 John Wiley & Sons, Ltd.
Extended testing of a simple granulation model
Authors: Ekwebelam C. C. , Ellis B. G. , Langrish T. A. G. 
Published: July 2007

AbstractA mathematical model for predicting the size distributions of iron ore granules after granulation was developed by Litster et al. (1986). This model was initially tested using a limited range of iron ores, as well as on simple mixtures of the iron ores and for moisture contents not exceeding 5.4% (by weight). However, since the development and testing of the model, a much wider range of iron ores has become available. Granulation experiments have been carried out at different moisture contents for this wider range of iron ores, as well as for three simple and four complex blends made from the ores and added fluxes. Granulation experiments were also carried out on two of the four complex blends with Ores N and Y replaced with Ore W. The Sauter mean diameters and size distributions of the granules formed were compared with the values predicted by the mathematical model. In all the cases where there was sufficient moisture for granulation, the agreement between the Sauter mean diameters predicted by the model and those obtained from experimental results was within ± 10%. There was also good correlation between the model‐predicted and experimentally determined granule size distributions. Copyright © 2007 Curtin University of Technology and John Wiley & Sons, Ltd.
Mechanical properties of epoxy networks based on DGEBA and aliphatic amines
Authors: Garcia Filiberto González , Soares Bluma G. , Pita Victor J. R. R. , Sánchez Rubén , Rieumont Jacques 
Published: July 2007

AbstractThe mechanical properties of epoxy networks based on diglycidyl ether of bisphenol A epoxy resin cured with various linear aliphatic amines, such as ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, and cyclic amines such as 1‐(2‐aminoethyl)piperazine and isophorone diamine, were studied. General characteristics such as Tg, density, and packing density, were determined and related to the structure and funcionality of the curing agent. Dynamic mechanical spectra were used to study both the α and β relaxations. Tensile and the flexural tests were used to determine the Young's and flexural modulus, and fracture strength all in the glassy state. Furthermore, linear elastic fracture mechanics was used to determine KIC. As a rule, isophorone diamine network presented the higher tensile and flexure modulus while 1‐(2‐aminoethyl)piperazine gave the highest toughness properties. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007
Plasma surface modification and characterization of collagen‐based artificial cornea for enhanced epithelialization
Authors: Rafat Mehrdad , Griffith May , Hakim Malik , Muzakare Lea , Li Frank , Khulbe K.C. , Matsuura Takeshi 
Published: July 2007

AbstractArgon plasma treatment enhanced the attachment of epithelial cells to a collagen‐based artificial cornea crosslinked using glutaraldehyde (GA) and glutaraldehyde‐polyethylene oxide dialdehyde (GA‐PEODA) systems. The epithelialization of untreated and treated surfaces was evaluated by the seeding and growth of human corneal epithelial cells. Characterization of polymer surface properties such as surface hydrophilicity and roughness was also made by contact angle measurement and atomic force microscopy, respectively. Contact angle analysis revealed that the surface hydrophilicity significantly increased after the treatment. In addition, AFM characterization showed an increase in surface roughness through argon plasma treatment. Based on the biological and surface analysis, argon plasma treatment displays promising potential for biocompatibility enhancement of collagen‐based artificial corneas. It was also found that the cell attachment to artificial cornea surfaces was influenced by the combined effects of surface chemistry (i.e., surface energy), polymer surface morphology (i.e., surface roughness), and polar interactions between functional groups at the polymer surface and cell membrane proteins. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007
Synthesis, X‐ray Structure, and Pharmacological Activity of Some 6,6‐Disubstituted Chromeno[4,3‐b]‐ and Chromeno‐ [3,4‐c]‐quinolines
Authors: Hegab Mohamed I. , Abdel‐Fattah Abdel‐Samee M. , Yousef Nabil M. , Nour Hany F. , Mostafa A. M. , Ellithey Mohey 
Published: July 2007

AbstractSome chromeno[4,3‐b]quinolines 4a–i were obtained from β‐chloro carboxyaldehydes 3a–c with different aniline derivatives namely, aniline, 4‐fluoroaniline, and 2‐aminophenol. Surprisingly, 3a–c reacted with 2‐aminothiophenol and afforded the chromeno[3,4‐c]quinoline derivatives 5a–c. Single‐crystal X‐ray diffraction studies of 4e and 5b provided good support for the established structure. Compounds 4b and 5b showed significant anti‐inflammatory and ulcerogenic score activities compared to that of indomethacin.
Functional Organogel Based on a Salicylideneaniline Derivative with Enhanced Fluorescence Emission and Photochromism
Authors: Xue Pengchong , Lu Ran , Chen Guojun , Zhang Yuan , Nomoto Hiroyuki , Takafuji Makoto , Ihara Hirotaka 
Published: July 2007

AbstractA new organogelator based on a salicylideneaniline derivative with cholesterol moieties was synthesized, and it was proposed that it could gelate various organic solvents, such as 1‐butanol, 1‐octanol, butyl acetate, tetrachloromethane, benzene, toluene through combination with a gelation test. From the results of analysis by UV/Vis absorption, circular dichroism (CD), X‐ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) studies and semiempirical (AM1) calculations, we believed that the gelator molecules could self‐assemble into left‐handed helical nanofibers through unimolecular layer packing, which further twisted into the thicker fibers and constructed 3D networks in the gel phase. Interestingly, the organogel exhibited strong fluorescence enhancement relative to a solution of the same concentration because of the formation of J aggregations. Meanwhile, photochromism of the organogel could take place under UV‐light irradiation. Both strong fluorescence emission and photochromism properties were concurrent in one system based on a salicylideneaniline derivative. It was suggested that the self‐assembly of the functional organogelator could lead to unique photophysical properties.
Chelation‐Mediated Aqueous Synthesis of Metal Oxyhydroxide and Oxide Nanostructures: Combination of Ligand‐Controlled Oxidation and Ligand‐Cooperative Morphogenesis
Authors: Oaki Yuya , Imai Hiroaki 
Published: July 2007

AbstractWe have synthesized nanostructures of iron and cobalt oxyhydroxides and manganese oxides in aqueous solution containing a chelating agent. Nanosheets of FeOOH and NaxMnO2 and nanoflakes of CoOOH were generated from the corresponding divalent metal salts and ethylenediaminetetraacetate (EDTA) by one‐pot synthesis under ambient conditions. The chelating agent fulfilled multiple roles in the reaction process and morphogenesis leading to two‐dimensional nanostructures. Coordination to the divalent metal ions inhibited rapid precipitation of metal hydroxides and mediated oxidation to tri‐ and tetravalent species by dissolved oxygen. Along with the deposition, the two‐dimensional and single‐crystal nanostructures were also associated with interactions of the chelating agent. Therefore, this approach can be regarded as a combination of ligand‐controlled oxidation and ligand‐cooperative morphogenesis. Parallel control of the reaction and the morphology was achieved by a simple approach. The model cases suggest that tailoring chelation can facilitate the design of other metal oxide nanomaterials.
Enantioselective Radical Cyclizations: A New Approach to Stereocontrol of Cascade Reactions
Authors: Miyabe Hideto , Takemoto Yoshiji 
Published: July 2007

AbstractStereocontrol in a cascade radical addition–cyclization–trapping reaction was achieved by a new approach, which utilizes a hydroxamate ester moiety as a coordinating chiral Lewis acid tether between two radical acceptors. A remarkable feature of this reaction is the construction of three bonds and tertiary and quaternary stereogenic centers through both inter‐ and intramolecular carbon–carbon bond‐forming processes. The chiral Lewis acid mediated reaction of oxime ethers also proceeded smoothly with good enantio‐ and diastereoselectivities, indicating the usefulness of the cascade approach for the asymmetric synthesis of various γ‐lactams.