bluuebunny/crossref_metadata_2025 huggingface dataset:
New Study on the Effect of Scopoletin and Silver Nanoparticles of Fenugreek Extract as Pancreatic Cancer Inhibition Agents
Authors: Hasan Nihad , Nijoud Faisal Yousif AL-Saarag
Published: June 2024

Pancreatic cancer is a highly aggressive and lethal form of cancer with limited treatment options. Therefore, exploring novel therapeutic strategies is crucial to improve patient outcomes. Researchers are currently investigating the potential therapeutic effects of scopoletin and silver nanoparticles on various diseases, including pancreatic cancer. Specifically, they have synthesized and characterized silver nanoparticles using fenugreek extract and tested different concentrations of these nanoparticles and scopoletin to determine their anti-cancer and anti-angiogenic properties. The aim is to identify the most effective dose that can reduce the levels of cyclooxygenase-2 (COX-2) and lactate dehydrogenase (LDH), which are markers associated with cancer progression. The study was performed in a laboratory setting, dividing the samples into three separate groups. The first group, known as the control group, consisted of 30 samples from healthy individuals of both genders, aged between 23 and 45 years. The second group included 30 male and female patients aged between 45 and 65 years, with stage II pancreatic cancer. Lastly, the third group comprised 30 male and female patients with stage III pancreatic cancer, aged between 52 and 79 years. This study found that, compared to the control group, patients with stage IΙ            and stage IΙΙ pancreatic cancer experienced the greatest decrease in enzyme concentration at the concentration of the nanoparticle solution 2 ppm where the Cyclooxygenas-2  enzyme concentrations values were 2.43±0.22ng/ml, 3.04±0.31ng/ml and 1.59±0.06ng/ml, respectively. As for the concentration of the enzyme  Lactate dehydrogenase, it was  1.20±0.02ng/ml, 1.14±0.02ng/ml and 0.85±0.18ng/ml respectively.  Also, as compared to the control 1.97±0.17ng/ml, 1.72±0.10ng/ml, and 1.22±0.07ng/ml, the concentration of the scopoletin compound solution 8ppm results in the best reduction in COX-2 enzyme concentration  As for the concentration of the enzyme  LDH, it was 0.93±0.07 ng/ml, 0.97±0.11 ng/ml and 0.71±0.10 ng/ml In individuals with stage IΙ and stage IIΙ PC. The results of this research demonstrate that scopoletin compounds and Ag-NPs derived from Fenugreek extract function as anti-cancer and anti-angiogenesis agents by reducing the levels of cyclooxygenase-2 (COX-2) and lactate dehydrogenase (LDH) enzymes in the blood serum of individuals with stage II and stage III pancreatic carcinoma in Iraq.
The Technique of Inorganic Core Sand Shooting with Reduced Pressure in Venting System
Authors: Skrzyński M. , Dańko R. , Dajczer G.
Published: June 2024

The publication presents a new shooting technique with reduced pressure in venting system for manufacturing foundry cores using inorganic sand mixture with Cordis binder. Traditional technologies for producing casting cores using blowing methods, despite their undeniable advantages, including the ability to produce cores in series, also come with some disadvantages. The primary drawbacks of the process involve uneven compaction structure of the cores, with denser areas primarily located under the blow holes, and under-shooting defects, which often occur in regions away from the blow hole or in increased core cross-sectional areas. In an effort to improve core quality, a concept was developed that involves incorporating a reduced pressure in the core box venting system to support the basic overpressure process. The solutions proposed in the publication with a vacuum method of filling the cavities of multi-chamber core boxes solve a number of technical problems occurring in conventional blowing technologies. It eliminates difficulties associated with evacuating the sand from the chamber to the shooting head and into technological cavity and increases the uniform distribution and initial degree of compacting of grains in the cavity. The additive role of this “underpressure” support is to enhance corebox venting by eliminating 'air cushions' in crevices and structural elements that obstruct the flow of evacuated air. The publication presents the results of studies on core manufacturing using blowing methods conducted in three variants: classic overpressure, utilizing the core box filling phenomenon by reducing pressure, and an integrated approach combining both these methods.
Feasibility and accuracy of intraosseous endoscopy for inspection of thoracolumbar and lumbar pedicle drill tracts in a canine large-breed cadaveric model
Authors: Mullins Ronan A. , Ortega Cristina , Bleedorn Jason , Maurin Marie Pauline , Hoey Seamus , Espinel Ruperez Jorge , Kraus Karl H. , Hetzel Scott , Guevar Julien
Published: June 2024

OBJECTIVE

To evaluate the feasibility of endoscopic inspection of thoracolumbar and lumbar pedicle tracts in a canine large-breed model and its accuracy for the detection of breached versus nonbreached tracts.

ANIMALS

2 greyhound cadavers.

METHODS

CT scans of 2 greyhound cadavers from the sixth thoracic vertebra to the sacrum were obtained. Fifty-six pedicles were randomized to have drill tracts with different modified Zdichavsky grades (nonbreached, partial/full medial breach, or partial/full lateral breach) using 3-D–printed guides. Endoscopy was performed on a single occasion from October 9 to 10, 2023, using a 1.9-mm 0-degree needle arthroscope in a randomized blinded fashion. The grading of drill tracts was performed on postoperative CT. Specificity, sensitivity, positive and negative predictive values, and time to assign endoscopic grade were investigated.

RESULTS

Postoperative CT confirmed 43 nonbreached tracts, 7 medial breaches (partial/full), and 5 lateral breaches (partial/full). One tract was excluded because of guide misplacement. Intraosseous endoscopy was successfully performed in the remaining 55 drill tracts. Sensitivity to detect medial and lateral breaches was 71.4% and 60.0%. Negative predictive value was 93.1%. Specificity was 94.2%. Positive predictive value for detection of medial and lateral breaches was 83.3% and 54.5%. Median (range) time to assign an endoscopic grade was 118 (30 to 486) seconds.

CLINICAL RELEVANCE

Intraosseous endoscopy of pedicle drill tracts may be a useful adjunct technique during pedicle screw/pin placement in dogs.
Statistically verified methods for determining predictors of development of arterial hypertension depending on endothelial nitric oxide synthase T786C gene promoter polymorphism using lipid profile indicators
Authors: Pidruchna Svitlana , Shmanko Volodimir , Hnizdyukh Roman , Sverstiuk Andrii , Lykhatskyy Petro , Kuzmak Iryna , Yaroshenko Tetyana , Bandas Iryna , Vasylyshyn Nadya , Ostrivka Oksana , Mudra Alla , Palytsia Lylya , Letnyak Nataliya , Tokarskyy Oleksandr
Published: June 2024

Objective. Polymorphism investigation of T786C gene promoter of endothelial nitric oxide synthase (eNOS/NOS3) in the arterial hypertension is a promising field for determining the relationship between heredity, hypertension, and dyslipidemia, which still remains controversial. The purpose of the study was to investigate the lipid profile, which depends on the NOS3 T786C gene promotor region polymorphism in patients with arterial hypertension.

Methods. The study involved 86 patients with arterial hypertension. The control group consisted of 30 basically healthy individuals. The lipid profile in the blood serum of the studied patients was measured by commercially available kits using Biochem FC-200 analyzer (HTI, USA). The allelic polymorphism of NOS3 T786C gene promoter was studied using a polymerase chain reaction technique with electrophoretic detection of the results.

Results. An increase at the level of all atherogenic fractions in the blood was found in the group of patients carrying the CC genotype compared with carriers of the TT genotype of the NOS3 gene. The total cholesterol serum level in the group of carriers of the CC genotype of NOS3 T786C gene promoter increased by 33.3% compared with carriers of the TT genotype and it was almost twice as high as the control values. In the group of carriers in the CC genotype of the NOS3 gene, the serum level of triglycerides was statistically significantly higher (2.9 times) than in the group of carriers of the TT genotype. The low-density lipoprotein (LDL) and very low-density lipoprotein (VLDL) serum levels significantly increased in patients with arterial hypertension with the CC genotype by 1.6 and 4.6 times, respectively, compared with the TT genotype carriers. The high-density lipoprotein (HDL) serum level, as an antiatherogenic factor, was statistically significantly lower (by 45.8%) in the group of the CC genotype carriers of the NOS3 gene than in the group with carriers of the TT genotype (0.58±0.06 vs. 1.07±0.03 mmol/l.)

Conclusions. The increase in all atherogenic and decrease in antiatherogenic lipid parameters of the lipidogram of patients with arterial hypertension and the deepening of dyslipidemia in carriers of the CC genotype compared with carriers of the TT genotype of the NOS3 T786C gene promoter is crucial in the development of dyslipidemia.
Bicycle critical mass events 30 years on – are they an urban mobility movement or a bicycle festival?
Authors: Kwiatkowski Michał Adam
Published: June 2024

The issue of inequality in the use of urban transport space is particularly important in today’s car-saturated cities. Increasing the convenience, safety and respect for the rights of vulnerable road users, including in particular pedestrians and cyclists, is emerging as a particular challenge. Grassroots initiatives of city residents, who become cycling advocates and cycling activists, are confronting this problem. Among various forms of activism there is also the organisation of ‘critical masses’, which were originally intended to remind us about the rights of this group of road users through a simultaneous passage of multiple cyclists through the streets of the city. From the late 20th century to the present day, such events have undergone change. The aim of this study was to investigate how today’s critical masses differ from their 1990s prototypes. The research analysed bike critical masses organised in Poland, a country with an underdeveloped cycling culture and low cycling modal share. At one such event, a survey was also conducted to determine why participants chose to attend. The study confirmed that contemporary bicycle critical masses are recreational events promoting cycling.
Post-fire dynamics of recolonization by Cistus plants in the Aleppo pine and Cork oak forests in Bejaia region, central north Algeria
Authors: Benzina Imene , Bekdouche Farid , Bachir Abdelkrim Si
Published: June 2024

In August 2021, very intense fires swept through various forested areas in northern Algeria, particularly in Kabylia. The population dynamics of Cistus salviifolius and Cistus monspeliensis were studied along a post-fire successional gradient during the first nine months (September 2021 – May 2022), in two forest communities: the Cork oak (Quercus suber) and the Aleppo pine (Pinus halepensis) forests in the coastal zone of Bejaia province. The Cistus spp. germinations were counted monthly in each forest on 10 plots of 1 m2, evenly distributed along 2 transects of 45 m each. The results showed that the majority of germinations occur in December with 207.5 ± 24.2 seedlings in the Cork oak forest and 171.3 ± 18.0 seedlings in the Aleppo pine forest. Student's t-test does not reveal significant differences for December between the two communities. During the first months following the fire (September and October 2021), germinations were almost absent. The monthly rainfall in September 2021 was estimated at 16.25 mm, an insufficient amount for effective germination. Late germination results in an extension of its period, showed a high rate in January 2022 with 42.2 ± 2.1 and 11.5 ± 0.8 seedlings, respectively, in the Cork oak forest and the pine forest. Beyond January, germination was practically nonexistent in both communities. Therefore, the majority of the seed germination was concentrated in November, December, and January with a unimodal germination pattern.
The dynamics of the taxonomic composition of the alien fraction of the urban flora in the Kyiv urban area, Ukraine
Authors: Koniakin Serhii M. , Burda Raisa I. , Budzhak Vasyl V.
Published: June 2024

This article presents the results of an investigation into the recent taxonomic composition of the alien fraction of the urban flora in the Kyiv urban area (KUA). Its main dynamic tendencies over the last 20 years have been highlighted, along with the most probable phytoinvasive threats. The obtained linear regression equation allowed forecasting for the growth in the abundance of alien plant species against the background of the enlargement of the Kyiv urban area (r=0.53) and its human population numbers (r=0.87). The alien fraction of the urban flora of the KUA contains 717 taxa of vascular plants (668 species, 41 subspecies, 6 varieties, 1 form and 1 nothoform). In the past 20 years, the number of species of the urban flora of the KUA has increased by at least 166 alien taxa, some of which are representatives of new genera, families, and orders for our flora. This enrichment of the taxonomic structure of the alien fraction in the urban flora of the KUA has caused changes in the ratio of life forms, ecotypes, invasiveness of species, and other features. We specified probable invasive threats, conditioned by the formation of the group of new woody species, hydrophytes capable of rapidly accumulating their phytomass, some genera complexes involving alien and local species, which are inclined to hybridization.
Selected legal instruments for air protection against low emissions in Poland
Authors: Gałka Pamela
Published: June 2024

A fundamental problem during the heating season is the above-normal concentrations of pollutants, especially particulate matter, which are often exceeded. Currently, the main source of air pollution in Poland is low emissions, which consists of from the inefficient burning of fossil fuels in single-family homes and road transportation. This article discusses the permissible particulate matter standards and identifies the anti-smog resolution as a legal instrument to reduce low emissions. For the purpose of this research, field measurements of particulate matter of various fractions were carried out using the specialist equipment of the University Laboratories for Atmosphere Control of the University of Silesia in Katowice. Field measurements were carried out in early 2023 using the Overhead Mobile Laboratory and the Field Mobile Laboratory in selected districts of Katowice. When conducting the study, attention was paid to the type of development, which determines the specifics of heating and the proximity of roads, which are a source of traffic pollution. Due to the high variability of atmospheric conditions and other components, such as current traffic, the data should be treated as indicative. The results of the study depend primarily on the conditions found and reflect the situation at a particular place and time. The occurrence of low emissions was confirmed by the results of the study, which showed very high concentrations of particulate matter in the southern districts of Katowice, where single-family old buildings predominate and building heating is unsuitable. An impact of automobile traffic on air quality was found.
Ranking of Alternatives Described by Atanassov’s Intuitionistic Fuzzy Sets – Reconciling Some Misunderstandings
Authors: Szmidt Eulalia , Kacprzyk Janusz , Bujnowski Paweł , Starczewski Janusz T. , Siwocha Agnieszka
Published: June 2024

Atanassov’s intuitionistic fuzzy sets (IFSs) are a very convenient tool for describing alternatives/options while making decisions because they make it possible to naturally represent the pros, cons, and hesitation. The IFSs have attracted a significant interest and have been applied in various fields. Of course, their use poses some challenges. One of the main challenges is the ranking of alternatives/options described by the intuitionistic fuzzy sets, to be called for brevity the intuitionistic fuzzy alternatives. This is a crucial issue, notably for the applications, for instance, in decision making. We first present in detail and analyze the benefits of a method we introduced previously (cf. Szmidt and Kacprzyk [1]). For this method, we augment the original assumptions with an additional assumption, which is justified and inherently reasonable. As a result, we obtain formulas which are better justified than those previously used as they explicitly consider the arguments in favor (pro), against (con), and hesitance. Since the intuitionistic fuzzy alternatives can not be linearly ranked, then the additional assumptions during the ranking process are necessary. We address these issues and analyze examples to clarify our new approach. We examine some other methods discussed in the literature and analyze their results, and show that the new assumptions reconcile some misconceptions raised by those other papers.
Comment dire Dieu à un enfant de rue de Kinshasa ?
Authors: Kabundi Kabengele Célestin
Published: June 2024

Ce livre aborde la problématique des enfants injustement accusés de sorcellerie par des pasteurs dans la République démocratique du Congo, puis rejetés par leurs parents. Comment ces enfants survivent-ils dans les rues de Kinshasa ? Quelle idée se font-ils de Dieu ? Et comment parler de Dieu à un enfant des rues qui s’est retrouvé dans cette situation à cause d’un pasteur ? Pour répondre à ces questions, Célestin Kabundi Kabengele fonde son enquête sur les témoignages de nombreux enfants et pasteurs recueillis à Kinshasa. Il confronte non seulement ses résultats à des textes bibliques, mais formule également des propositions concrètes pour la pastorale sur place. Enfin, en plus de retracer l’histoire du christianisme en République démocratique du Congo, ce livre formule des recommandations à l’attention de l’État, des partis politiques, des parents et des médias.
Excursion as an important aspect in the preparation of future chemistry teachers
Authors: Hrdlička Jan , Šrámová Alena , Mrákota Vít , Klečka Milan
Published: June 2024

Excursions to chemical plants are assumed as an important aspect not only in the preparation of expert chemists, but in the preparation of future chemistry teachers too. A questionnaire was used to confirm the students - future teachers - opinion on the excursions. Queried group of the students were studying a continuing master’s degree programme. It was found that they were aware of the benefits of excursions for their expertness (chemistry) side of their education. They appreciated gaining experience and information useful for their future work as teachers too. The evaluation revealed some differences in the perception of the benefits of excursions in each specific plant related to the conduct and organization of excursions in the visited facilities. Some additional information was also elicited using open-ended questions. They were asked about the overall impression of the excursion for example, or which kind of chemical industry, if any, they choose to complement the excursion. After evaluation, the information obtained was in accordance with the assumption that the students themselves appreciated the role of their own experience with the realities of chemical technologies.
The use of green chemistry in experimental teaching
Authors: Krutinová Eliška , Nodzyńska-Moroń Małgorzata
Published: June 2024

This thesis contains basic information about conduction of safe and ecological chemical experiments. The aim of this paper is to demonstrant, that experiments can be conducted in environmentally friendly way. This informartion is suitable for elementary school students, high school students and lectors with basic knowledge of chemistry. Theoretical part of this thesis is aimed at explanation of „Green chemistry“ and general principles of selected experiments. Differences between ecological and convetional form of experiments are also explained. Execution of pedagogical experiments aimed at researching green chemistry experiments efficiency is covered in practical part of this thesis. Photos of experiments and questionnaires filled by students, who conducted those experiments are attached to the thesis. The result of this thesis is a comprehensive compilation that presents students and teachers with experiments that, with the help of more refined chemicals, can be done as efficiently as using the original starting substances. The conclusion of the thesis is an overall summary of theteaching of chemistry for high schools with the help of chemical experiments.
Kitchen as home laboratory – interdisciplinary project for primary school
Authors: Krzeczkowska Małgorzata
Published: June 2024

The Kitchen as home laboratory project is implemented by students of grades 7 and 8 of primary school as part of the project “Education Inspiration”. Searching for interesting experiments, checking the effectiveness of instructions, modifying their experiments to guarantee safety are only some of the steps implemented in the project. Pupils look for interesting facts and try to explain the occurring processes and phenomena without division into school subjects.
Motivation of teacher study students to prepare for a profession or else a foreign didactic internship
Authors: Sirotek Vladimír , Rychter Jiří , Šrámova Alena , Kokoška Milan
Published: June 2024

The article deals with the preparation and realization of the foreign didactic internship of chemistry teaching students at the Faculty of Education of the University of West Bohemia in Pilsen (FPE UWB). The foreign internship was part of the project “Internationalization, cooperation, innovation, reflection and evaluation in the preparation of future teachers” (INSPIRE). The basic goal of the project was to improve the quality of teaching of future teachers, which represents a goal of considerable scope, but also of significant application. An important means of support ensuring the fulfillment of this goal was precisely the foreign didactic internship. The main goal of the internship was to transfer experience from abroad to Czech schools, to learn about didactic methods and pedagogical approaches through shadowing teachers of the host school, presentations, guided debates and joint professional activities related to the didactics of the educational process.
Changes in Students’ Behavior and Performance in Chemistry Calculation Tasks on E-Learning Platforms During and After the Covid-19 Pandemic: an Updated Analysis
Authors: Zaicenko Andrejs , Gorskis Mihails , Bilek Martin
Published: June 2024

This study investigates the influence of the shift back to offline education on students’ behavior and performance on e-learning platforms. Focusing on Uzdevumi.lv (Latvia) and Miyklas.com.ua (Ukraine), the analysis compares this period with the COVID-19 pandemic, considering changes in Class 8 to 9 students’ engagement and proficiency in chemistry calculation tasks. Data from the e-learning platforms were analyzed, specifically during the transition back to offline education in 2022. Behavioral indicators and performance metrics were examined to understand shifts in students’ engagement. A comparative analysis was conducted with the data from the pandemic period in 2020 and 2021. Returning to offline education impacted students’ behavior and performance on e-learning platforms, showing notable differences compared to the pandemic period. These findings shed light on the influence of transitioning between online and offline learning environments. The shift back to offline education affects students’ behavior and performance on e-learning platforms. Adaptive strategies are needed to address challenges during the transition. These insights have implications for optimizing blended learning environments and enhancing student engagement and performance in the post-pandemic era.
Energy Balance and Greenhouse Gas (GHG) Emissions of Sesame (Sesamum indicum L.) Production in Türkiye
Authors: Özbek Osman , Çelik Sadiye Ayşe , Ayran Çolak İrem , Gökdoğan Osman
Published: June 2024

The objective of this study was to determine the energy use and greenhouse gas emissions associated with sesame production. Energy use efficiency indicators and greenhouse gas emission rates were calculated for the 2022-2023 production season. The energy input and output for sesame production were found to be 12079.15 MJ ha-1 and 30052.44 MJ ha-1, respectively. The study found an energy use efficiency of 2.49, with a specific energy of 12.20 MJ kg-1, an energy productivity of 0.08 kg MJ-1, and a net energy value of 17973.29 MJ ha-1. The direct and indirect energy inputs were calculated to be 4584.41 MJ ha-1 (37.95%) and 7494.74 MJ ha-1 (62.05%), while the renewable and non-renewable energy inputs were calculated to be 469.12 MJ ha-1 (3.88%) and 11610.03 MJ ha-1 (98.65%), respectively. The calculation shows that the total greenhouse gas emissions are 380.52 kgCO2-eq ha-1 and the greenhouse gas emission rate is 0.38 kgCO2-eq ha-1. Sesame production is highly profitable for the 2022-2023 production season in terms of energy use efficiency.
Conflictos de valores, límites cognitivos y malas prácticas organizativas como riesgos para la utilidad de los códigos éticos en la Administración pública
Authors: Villoria Manuel
Published: June 2024

Objetivos: en un momento en el que miles de códigos éticos empiezan a aprobarse en las Administraciones públicas españolas, este artículo trata de aportar luz sobre sus posibilidades y limitaciones, considerando, especialmente, los retos cognitivos que representan y su inserción en entornos organizativos que, en ocasiones, socializan en malas prácticas a sus empleados. Metodología: se trata de un texto teórico y de reflexión, basado en teoría moral aplicada, centrado en la denominada ética administrativa, al que se aporta investigación reciente sobre ciencia cognitiva. Resultados: el texto resalta el destacado papel de la motivación moral y la construcción del carácter para el éxito de los códigos, pero también nos permite comprender los problemas que se derivan de los conflictos de valores en el servicio público y cómo afrontarlos. Se demuestra el papel de las emociones, sentimientos e intuiciones en la conformación de las decisiones éticas, así como el riesgo de los sesgos cognitivos en la toma de decisiones frente a problemas morales. Finalmente, se trata el problema de los riesgos de socialización y normalización de prácticas corruptas en las organizaciones. Conclusiones: derivadas de los resultados, se aportan recomendaciones para las personas y organizaciones públicas a la hora de desarrollar y utilizar los códigos.
La expropiación por vía administrativa: una tensión entre el Derecho a la Propiedad y la función social de la propiedad
Authors: Cortés Polanía Jennifer Lorena
Published: June 2024

Este artículo presenta un recuento sobre la importancia de la propiedad dentro de la esfera social, así como su frente al uso de la mimas y la necesidad para el desarrollo del Estado. De igual manera pretende hacer un análisis sobre la figura de la expropiación por vía administrativa, tenida esta como una herramienta necesaria para el impulso y desarrollo de los proyectos de infraestructura dentro de un Estado, que, para el caso de estudio en este artículo, son los proyectos con fines de explotación de hidrocarburos.
Assessing the structure and interaction of sustainable Bio – Composite Films Prepared form deamidated Rice Bran Protein
Authors:   Food Technology Department, Faculty of Agriculture, Kafrelsheikh University, Kafrelshiekh, Egypt, HASSAN MOHAMMED HAMED , ZEIN RAGAA ,   Food Technology Department, Faculty of Agriculture, Kafrelsheikh University, Kafrelshiekh, Egypt, OSMAN M. F. ,   Food Technology Department, Faculty of Agriculture, Kafrelsheikh University, Kafrelshiekh, Egypt
Published: June 2024

Rice bran protein (RBP) was utilized to prepare bio-composite films after deamidation modification process with deferent percentages. The physical, mechanical properties, exposure to light properties, FT-IR analysis, surface shape by SEM, thermal stability by DSC and X-ray diffraction were applied to study the potential interaction, structure and stabilizing the thermal property of the prepared films. The deamidation process has proven successfully, depending on the cleared changes of shapes of FTIR curves resulting from RBP compared with deamidated rice bran protein (DRBP). The deamidation process enhanced tensile strength, elongation at break, haze, transparency, gloss and opacity properties of produced films from DRBP. Additionally, the produces films from DRBP presented smooth and homogenous surface with increasement of thickness, solubility and decrement of water vapor permeability and cristallinity compared with films from RBP.
Bioactivity of two plant products against Tribolium castaneum infesting wheat grains and their impact on some biological parameters in Japanese quail
Authors:   Pesticides Chemistry and Toxicology Department, Faculty of Agriculture, Kafrelsheikh University, Kafrelsheikh, Egypt, HOSNY ABD EL-AZIZ H. , ABO ARB RAAFAT B. ,   Stored Product Pests Department, Plant Protection Research Institute, Agriculture Research Center (ARC), Dokki, Giza, Egypt, IBRAHIM SAHAR I. ,   Pesticides Chemistry and Toxicology Department, Faculty of Agriculture, Kafrelsheikh University, Kafrelsheikh, Egypt, KHALIL REHAB. M. M. ,   Pesticides Chemistry and Toxicology Department, Faculty of Agriculture, Kafrelsheikh University, Kafrelsheikh, Egypt, SAADALLAH MOUSTAFA S. ,   Pesticides Chemistry and Toxicology Department, Faculty of Agriculture, Kafrelsheikh University, Kafrelsheikh, Egypt, ELMADAWY ALZAHRAA A. ,   Stored Product Pests Department, Plant Protection Research Institute, Agriculture Research Center (ARC), Dokki, Giza, Egypt
Published: June 2024

Several experiments were carried out in the current study to assess the efficacy of Caraway seed (Carum carvi) and  petitgrain lemon (Citrus aurantium) plants against the  stored product insect Tri­bolium casteneum. To measure some factors, various plant preparations (powder, oil, extract, and new formulation) with concentrations of 5-10-15- and 20% oils and extracts and 5-10-20- and 40% powder and their formulations were used (biological effect, insect mortality rate). Furthermore, to assess the negative effects of tested materials on certain biochemical parameters of Japanese quail (Coturnix coturnix japonica). There have been no significant effects of oral treatment on creatinine level while significant effect were noticed on total protein, total anti-oxidants and Serum glutamic pyruvic transaminase (SGPT) levels in quail. In every treatments for quail, caraway was more effective than petitgrain lemon on some biological parameters. The determination of some biological parameters revealed that treatment after two weeks was affected in comparison to treatment four weeks later. The findings suggest that the tested plant products could be used to protect wheat grains from T. castaneum adults in Egyptian storage facilities.
Grain Yield Seed Hybrids Maize per Different Way of Detasseling
Authors:   University Business Academy in Novi Sad, Faculty of Economics and Engineering Management, Novi Sad, Serbia, PRODANOVIC RADIVOJ , SUBIC JONEL ,   Institute of Agricultural Economics, Volgina 15, Belgrade, Serbia, SABLJAK VLADIMIR ,   University Business Academy in Novi Sad, Faculty of Economics and Engineering Management, Novi Sad, Serbia, KUMBUROVIC SUAD ,   Megatrend University, Faculty of Biofarming, Backa Topola, Serbia, NEDELJKOVIC MIROSLAV ,   Bijeljina University, Faculty of Agriculture, Bijeljina, Bosnia and Herzegovina, DURIC KATARINA ,   University of Novi Sad, Faculty of Agriculture, Novi Sad, Serbia, IVANISEVIC DRAGAN ,   University Business Academy in Novi Sad, Faculty of Economics and Engineering Management, Novi Sad, Serbia, OZEGOVIC LAZAR ,   University Business Academy in Novi Sad, Faculty of Economics and Engineering Management, Novi Sad, Serbia
Published: June 2024

The experiments were conducted in field conditions, comprising two maize hybrids and two methods of detasseling, in the period 2014-2016 in a randomised block design. The seed yield was 3.64 t/ha, as average for all the hybrids and the methods of detasseling. “Suanito“ yielded 2.88 t/ha while “MAS 26K“ yielded 4.41 t/ha. The highest yield was obtained in 2015 (3.81 t/ha), then in 2014 (3.47 t/ha), while the lowest yield was obtained in 2016 (3.12 t/ha). Manual detasseling resulted in the seed yeld of 3.94 t/ha, whereas a significantly lower yield was achieved with mechanised detasseling (3.34 t/ha). There was a highly significant interaction found between the year and the hybrid, the year and the method of detasseling and the hybrid and the method of detasseling, whereas there was a significant interaction between the year, the hybrid and the method of detasseling.
El clima y su relación con la dinámica poblacional y dispersión de la broca del café Hypothenemus hampei en un gradiente altitudinal en la cuenca del río Risaralda, Caldas, Colombia
Authors: Constantino Chuaire Luis Miguel , Peña Quiñones Andrés Javier , Ramírez Carabalí Carolina , Imbachi Quinchua Luis Carlos , Benavides Machado Pablo
Published: June 2024

Se estudió la dinámica poblacional de la Broca del Café (BC) Hypothenemus hampei bajo diferentes condiciones climáticas y altitudinales, en cinco parcelas de Coffea arabica, con una densidad de 5.000 árboles en un gradiente altitudinal, donde se instalaron estaciones meteorológicas. En cada parcela se seleccionaron 30 árboles aleatoriamente y se evaluaron los niveles de infestación, dispersión y densidad poblacional, cada mes durante 3 años. Los resultados mostraron un incremento del 23,9 %, 20,2 % y 5,9 % de infestación de BC a 1.132 m durante tres periodos: El Niño, Neutro y La Niña, respectivamente, en contraste con 5,3 %, 2,1% y 2, 5% de infestación a 1.822 m. El número promedio de individuos de broca por árbol durante un periodo El Niño fue de 1.850, en comparación a 1.376 y 629 individuos durante un periodo Neutro y La Niña. La temperatura mostró un incremento de 2,5 °C por encima del promedio histórico por efectos del fenómeno El Niño. La dispersión de broca mostró una relación positiva y negativa de tipo exponencial con la temperatura y la altitud, que significó totales acumulados de 2´815.332 individuos capturados en trampas durante el periodo El Niño, en comparación con 1´650.897 en el periodo neutro y 173.814 en La Niña. Se presentó una epizootia natural del hongo Beauveria bassiana que ocasionó mortalidades entre 85 % y 95 % en las poblaciones de broca. Los transectos altitudinales en una misma cuenca hidrográfica sirven para entender las interacciones entre las plagas, el clima y sus enemigos naturales, que permiten generar alertas tempranas para desarrollar estrategias de control.
Study the Effect of Copper Oxide Nanorods Enhanced by Silver Nanoparticles on the Highly Sensitive Gas Sensor
Authors: Dhiab Shahad , Hassan Nadim Khalid
Published: June 2024

In this paper, ammonia (NH3) gas sensitivity was enhanced by the development of highly dense copper oxide (CuO) nanorods on glass substrates. The layer of copper (Cu) was deposited using a vacuum thermal evaporation method. The grown layer of Cu was sequentially inserted into an oxidation furnace at (400 °C) for (120 min) under atmospheric pressure to produce copper oxide (CuO) nanorods. Silver (Ag) nanoparticles- deposited copper oxide nanoparticles were successfully enhanced via a photo assisted spray pyrolysis technique. A metal-semiconductor-metal (MSM) NH3 gas sensor with aluminum (Al) contact electrodes was fabricated on CuO nanorods. The structure of the crystal as well as the morphology of the CuO nanorods were evaluated with field-emission scanning electron microscopy (FE-SEM), X-ray diffraction, and UV-visible spectroscopy respectively. In order to create a high-performing MSM NH3 gas sensor, silver nanoparticles (NPs) were sprayed by the photo-assisted spray pyrolysis technique on the CuO nanorods, which are produced via the vacuum thermal evaporation method. The results showed that the modified CuO nanorods by Ag nanoparticles demonstrated great sensitivity to NH3 gas might be much improved, and the sensitivity rises from (376.4 to 700 %) , fast response and recovery times about (10.4 and 9.5 s) respectively  to NH3 gas.
Crowdsourcing approach in the model of digital transformation of a tourism enterprise
Authors: Arefyev Alexander Sergeevich
Published: June 2024

Modern sanitary-epidemiological and environmental challenges produce changes in the structure of supply and demand in tourism. The share of cultural and ecological recreation in domestic tourism is growing, with a focus on the consumption of goods from local producers. The universal digitalization of public life increases the importance of cultural self-identification and creative self-expression, which also affects consumer behavior. All this forces tourism enterprises to look for new solutions to adapt their production processes and increase digital maturity. However, the complex of internal and external factors that have a decisive influence on management decision-making makes it difficult to apply existing models of digital transformation of organizations engaged in the field of tourism services. The expert literature on these issues is limited to examples of large companies and entire resorts. The author conducted an approbation of the methodology for drawing up a digital transformation strategy, proposed by a team of authors in the work "Digital Transformation Strategy: write to execute". The study is presented in the form of a case study of an Internet service development project Biggeo.ru the Sochi travel company. The article presents the experience of developing and implementing a digital transformation strategy for a travel agency, which can be useful both to representatives of the scientific community and creative industries involved in the development of innovative products and services, as well as to the heads of companies of alternative types of tourism. The digital transformation model was based on a crowdsourcing approach in the field of cultural and creative tourism, thanks to which the historical and cultural online travel guide was developed. The work carried out made it possible to confirm the hypothesis about the possibility of using this model in small enterprises of the tourism sector, to carry out a detailed description of the process of drawing up a strategy and to fill a gap in the scientific and expert literature devoted to this area. New in-demand activities and an innovative digital product, which appeared due to the implementation of the strategy for increasing digital maturity, allow us to characterize the first results of the project as successful, and the developing project is able to meet the needs of stakeholders in tools for promoting cultural and creative tourism.
The National Movement of the Kurds of Iraq (the Twentieth Century and the Present)
Authors: Vedeneev Ilia Nikolaevich
Published: June 2024

The subject of the study is Kurdish nationalism, which is revealed by the example of the national movement of the Kurds of Iraq in the twentieth century. The modern period is also touched upon. A number of stages through which Kurdish nationalism in Iraq has passed are consistently described. Special attention is paid to the period following the collapse of the Ottoman Empire, when representatives of this people had the greatest chances to gain their own statehood. The period of the "September Revolution" (1958–1975) is considered in detail, during which the leaders of the national movement managed to raise the issue of granting autonomy to the national minority. The current stage (1992 – present century) is also considered in detail, within the framework of which the question of the existing urgent problems of the Kurds in Iraq is raised. The work is based on the principles of consistency and historicism, as well as extensive literature on the topic of Kurdish nationalism (by Soviet, modern Russian and Western authors). Firstly, the work sets out a set of reasons according to which the leaders of the national movement of the initial stage failed to succeed in establishing an independent statehood. Secondly, the periodization of the stages of the formation of the national movement of the Iraqi Kurds is proposed. Thirdly, the situation in the autonomy of Iraqi Kurdistan is analyzed as of the current moment. Currently, the leadership of the Autonomy is facing serious challenges, which it seems extremely difficult to overcome. This is due, not least, to the lack of unity in the national movement (between the Kurdistan Democratic Party and the Patriotic Union of Kurdistan). In other words, modern Kurdish nationalism (as far as practical, political practice is concerned) completely inherits the shortcomings of the national movement of the previous stages.
The optimal dispatching strategy of cogeneration based on Deep Q-Network (DQN) algorithm
Authors: Zhang Pei , Fu Yan , Yao Fu
Published: June 2024

This work expands on previous research to offer a state-of-the-art approach for optimizing the dispatching of cogeneration systems, given the limitations faced by conventional coal-fired cogeneration units and the increasing environmental standards. Acknowledging the constraints of flexibility in winter heating, the study aims to improve unit coal use optimization and lower emissions. The paper presents a novel optimization approach for distributing electricity and heat in cogeneration units, utilizing the Deep Q-Network (DQN) algorithm. The suggested approach reduces operating expenses and improves system dependability using a sixth-order function fitting and fuzzy set space division. The study’s results indicate a significant 8.96% increase in performance, demonstrating the effectiveness of the DQN-based strategy in enabling cost-effective scheduling in cogeneration systems. This research offers a road towards sustainable and effective energy use and contributes to the development of cogeneration technology. It also has potential applications in natural energy systems.
Understanding Negative and Positive Feelings About Telerehabilitation in People With Chronic Knee Pain: A Mixed-Methods Study
Authors: Lawford Belinda J. , Bennell Kim L. , Kimp Alexander , Campbell Penny K. , Hinman Rana S.
Published: June 2024

OBJECTIVES: To explore (1) initial feelings of people with knee osteoarthritis who are unexpectedly offered telerehabilitation, and (2) if their experiences met their expectations, and their willingness to use telerehabilitation in the future.

DESIGN: Mixed-methods study of 122 people with knee osteoarthritis who were randomized to receive physiotherapist-delivered telerehabilitation in a clinical trial.

METHODS: At enrollment in the trial, participants were unaware care would be delivered via telerehabilitation. At completion, quantitative (Likert scales, analyzed descriptively) and qualitative (open-text, underwent content/thematic analysis) questions asked participants about their initial feelings when randomized to telerehabilitation, if experiences met expectations, and willingness to use telerehabilitation in the future.

RESULTS: Data were collected between October 2021 to March 2023. At enrollment, 44 (36% of 122) participants initially felt negative toward telerehabilitation ( doubts about effectiveness, physiotherapist can’t see/touch, believe in-person is better, can’t communicate effectively, not good with technology), 18 (15%) were neutral, and 60 (49%) felt positive. After experiencing telerehabilitation, 43 (72%) people who were initially positive and 27 (61%) who were initially negative believed telerehabilitation exceeded their expectations ( easier than expected, surprised by benefits/effectiveness, strong rapport with physiotherapist, convenience). Twenty-eight (23% of 122) people were not at all or slightly willing to use telerehabilitation in future ( prefer hands-on, doesn’t allow adequate assessment/observation, prefer in-person, don’t like telerehabilitation).

CONCLUSION: One in 2 people were positive about telerehabilitation from the outset, and 6 in 10 people who initially felt negative about telerehabilitation found that their experiences were better than expected. One in 4 people were unwilling to use telerehabilitation in the future, even after they had experienced it. J Orthop Sports Phys Ther 2024;54(9):594-607. Epub 11 June 2024. doi:10.2519/jospt.2024.12383
WHAT MAKES WOMEN WOMENpPRENEUR?
Authors: Prasetya Widya Ardini , Primandaru Noormalita , Nasution Olivia Barcelona
Published: June 2024

This research aims to explain the factors that influence women to become womenpreneurs. The type of research applied in this research is explanatory research by testing the hypothesis that has been formulated. Data is collected through surveys. The sampling technique used in this research was purposive sampling. The hypothesis was tested using multiple regression analysis using IBM SPSS version 22. Financial well-being, self-efficiency, the desire to be independent have a positive and significant effect on interest in becoming a womanpreneur. interest in becoming a womanpreneur, although the need for achievement does not have a significant effect on interest in becoming a womanpreneur. This research only uses female female respondents, for further research you can use female respondents with a more diverse status and also add other variables as antecedents of interest in becoming a womenpreneur. This research can be a reference in looking at the phenomenon of womenpreneurs in the fields of economics, business and entrepreneurship in particular.
STOCK UNDERPRICING FACTORS AFFECT IN INDONESIA FIRM: EVIDENCE ON INITIAL PUBLIC OFFERING ON 2017-2021
Authors: Ayu Ditasari Rollis , Dwi Haryanto Sendy
Published: June 2024

Abstract: This research aims to analyze the influence of underwriter reputation, financial leverage, proceeds, and firm age on initial IPO returns. In this research, IPO objectives are categorized into company growth opportunities, debt repayment, and increasing investors' working capital. This research sample consists of companies listed on the Indonesia Stock Exchange during the 2017-2021 period. The analytical tool used in this research is SPSS 25. The research results show that financial leverage has a significant effect on the underpricing of initial shares, while the underwriter; Income and company age do not have a significant effect on Initial Share Underpricing. This research contributes to better understanding the dynamics that occur in the IPO market, that volatility and market dynamics cause changes in the company's position on the stock market. These results are expected to provide valuable insights for investors, policy makers and market players.
A General Nucleation Model For Semiconductor Nanocrystals
Authors: Chen Zifei , Russo Salvy , Mulvaney Paul
Published: June 2024

We introduce a non-classical model for nanocrystal nucleation in solution which centers on the dynamic interplay of chemical bond breakage and formation, coupled with the desolvation of precursor molecules, which we term the molecular chemistry (MC) model. Departing from classical theory, our model employs the bond count as the key variable rather than particle size, thereby redefining the role of supersaturation and its role in determining the so-called critical nucleus size. We apply the model to CdSe nanocrystal formation in non-polar solvents and showcase its efficacy in predicting solvent dynamics, precursor characteristics, crystal phase, stoichiometry, "magic number" behavior, and transition states. While the coupled-cluster method is used to determine the bond energy, we show that it is possible to derive reaction pathways by reducing the calculations to algebraic approximations for the nucleation energy. This singular set of bond energy parameters allows nanocrystal nucleation and growth to be conceptualized as a straightforward chemical reaction.