bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dependence of the performance of the reclaiming sewer cleaner with rigid guides from interchangeable bucket tools capabilities
Authors: Abdulmazhidov Kh. A. 
Published: December 2022

Relevance. Cleaning of reclamation channels is a very relevant event. The need to clean the canals and maintain them in working condition becomes obvious during the flood period, when it is necessary to remove excess water. The paper presents mathematical models for determining the performance of the PP-303 canal cleaner, a feature of which is the rectilinear movement of the bucket on rigid guides along the bottom along the axis of the canal to be cleaned.Methods. The article is formed on the basis of experimental research methods. The research was carried out based on experimental and calculated data. A network of drainage canals of the drainage system was taken as the research object, and the working equipment of the canal cleaner was taken as the research subject. Performance, which is the amount of products produced by the machine per unit of time, can be of three types (theoretical, technical, and operational) and can be determined with consideration of the design parameters of the working equipment. During the operation of trench cutting machines, their performance directly depends on the main parameter, namely, the depth of the canal being built; in the case of canal cleaning with canal cleaners, this parameter cannot be considered as the main one. This is due to the fact that siltation and sediments accumulating on the bottom and slopes of the canals during the operation of the reclamation system are extremely unevenly distributed along the length of the canal. The highest concentration and amount of sediments and siltation is observed mainly at the mouth of the canals, the junctions of canals of different levels, and the junctions of the drainage with the drainage canal. In this case, the most significant parameter is the thickness of the chips removed from the bottom and slopes of the canal by the bucket.Results. The results of the research showed that the performance of the channel cleaner, as a batch machine, is influenced by the very design of the working equipment, the main element of which is a bucket capable of moving in a straight line along rigid guides at different speeds. With obvious high values of the performance of continuous channel cleaning machines, it can be concluded that the channel cleaner RR-303 showed high values of technical and operational characteristics, mainly due to the use of a trapezoidal profile bucket.
Diversity of the VIR basil (<I>Ocimum basilicum</I> L.) collection by morphological and phenological features
Authors: Kurina A. B. 
Published: December 2022

Relevance. Basil is one of the most popular aromatic plants grown in the world. Various species and forms of Ocimum spp. differ in the nature of growth, color and aromatic composition. The VIR basil collection is represented by 452 accessions of six species from 55 countries. The expansion of the assortment of basil, as well as the identification of competitive adaptive cultivars with high economically valuable traits, determines the need to study and identify promising species and forms of Ocimum spp. The purpose of our work was to study accessions of basil (Ocimum basilicum) from the VIR collection by morphological and phenological traits and to identify accessions that have a complex of economically valuable traits for further use in the breeding.Materials and methods. The studies were carried out at the Federal Research Center N. I. Vavilov All-Russian Institute of Plant Genetic Resources (VIR) at the VIR Pushkin and Pavlovsk Laboratories in 2019-2021 in open ground conditions. The material of the study was 66 accessions of the VIR basil collection of various agrobiological status and ecological and geographical origin. When analyzing the material, phenological observations, biometric measurements and morphological description of plants were carried out. These measurements were carried out in the phase of mass flowering.Results. As a result of the study, the degree of variability of the main phenological and morphological features was revealed. Accessions of basil were selected according to such traits as early maturity, plant height, weight of one plant and cold resistance, which can be used as starting material for breeding. The studied accessions are grouped into 7 varieties of two subspecies (subsp. basilicum and subsp. minimum): var. basilicum, var. glabratum, var. purpurescens, var. majus, var. diforme, var. minimum and var. chamaeleonicum, and their characteristics are given.
Selection of cucumber for parthenocarpy for spring greenhouses
Authors: Korottseva I. B. , Belov S. N. 
Published: December 2022

Scientific relevance. Currently, in the protected ground, the main areas are occupied by parthenocarpic hybrids of cucumber of foreign origin. Therefore, the selection of domestic cucumber hybrids of the parthenocarpic type is very relevant.Material and conditions. The experience was laid in 2018-2022 in the Odintsovo district of the Moscow region in the conditions of a spring film ground greenhouse of the "Block" type on the basis of the head institution of the FSBSI FSVC. Agrotechnics of cultivation is generally accepted for the conditions of spring film greenhouses. In breeding nurseries where there were no bees, the degree of parthenocarpy was determined as the ratio of the fruit set to the number of female flowers formed on the plant, as a percentage. The records were carried out from the 5th to the 20th node inclusive, only on plants of the female type of flowering. On the basis of the laboratory of breeding and seed production of pumpkin crops, 27 collectible and more than 50 breeding samples of parthenocarpic cucumber were studied.Results. During three years of research, 7 hybrids of cucumber of the parthenocarpic type of foreign breeding were selected based on the sum of economically useful traits.These hybrids were distinguished by a high degree of parthenocarpy. With their participation, as a result of multiple selections and self-pollination, more than 50 breeding lines were created. Analysis of the obtained material showed that the degree of manifestation of parthenocarpy on the plant (the arithmetic mean between the indicators of parthenocarpy on the main and lateral shoots) in the best half of the samples in 2021 was in the range of 30-50%, whereas in 2022 it already reached 50-70%. The parthenocarpy severity coefficient above 70% was noted only in 2022 in 4% of samples. About half of the samples showed a fairly low parthenocarpy: in 2021 no more than 30%, and in 2022 no more than 50%. Most of them were rejected. The parthenocarpy of the best breeding samples in 2022, compared with 2021, increased by an average of 17.7%. Breeding lines obtained even from the same collection sample often differed greatly, sometimes by 4 times, in the degree of parthenocarpy. The families of the most stable parthenocarpy samples had differences on this basis in 2021 only 3-6%, and in 2022 – 10-11%. Families with the greatest severity of this trait were selected annually. It can be concluded that the degree of parthenocarpy in cucumber strongly depends on both the genotype of the sample and the growing conditions. 3 breeding lines were selected, characterized by high indicators of the degree of manifestation of parthenocarpy in 2021 (61.5-70.5%) and the stability of the manifestation of this trait by families and years.
Use of prolonged-acting fertilizers in growing garden strawberry seedlings
Authors: Akimova S. V. , Matsneva A. E. , Marchenko L. A. , Solovyov A. V. , Zubkov A. V. , Bulanov A. E. , Arkaev D. S. 
Published: December 2022

Timeliness. Currently, the Russian Federation has a high demand in healthy planting material of garden strawberries. The benefits of using fertilizers when growing strawberry seedlings have been proven by numerous studies. However, a comparative study of the effect of new fertilizers and methods of their application is very limited. In this regard, studies aimed at identifying the effectiveness of the use of prolonged-acting fertilizers in the production of garden strawberry planting material in protected soil conditions are relevant.Methods. Adapted to non-sterile conditions, ex vitro healthy garden strawberry plants were planted in a peat substrate of Veltorf LLC (recipe No. 5c/2) with the addition of Pg mix starter fertilizer with the structure NPK 14-16-18 + microelements (1.5 g/l of substrate). At the same time, prolonged-acting fertilizers were introduced into the substrate in the recommended concentrations: FertiPro Gran 1M (1.25 g/l of substrate), Ruscote 5-6M (3.0 g/l of substrate), Basacote Plus 6M (4.0 g/l of substrate), control peat substrate without fertilizers, PG mix standard.Results. It has been established that for the Karmen crop with an average runner-forming ability, the effectiveness of applying FertiPro Gran 1M fertilizer to the substrate was revealed, with the use of which, on the 180th day of cultivation, the number of runners and rosettes increases by 3.5–3.8 times compared to the control. At the same time, the yield of marketable seedlings is 95% compared to 70% in the control. For the Jūnija smaids crop with a high vine-forming ability, the effectiveness of all experimental variants with the application of FertiPro Gran 1M, Ruscote and Basacote Plus fertilizers to the substrate was revealed, with the use of which, on the 180th day of cultivation, the number of runners and rosettes increases by 1,9-2,5 times compared to the control. At the same time, the yield of marketable seedlings is 94-96% compared to 65% in the control.Conclusion. The introduction of long–acting fertilizers FertiPro Gran, Ruscote and Basacote Plus into the peat substrate with the addition of Pg mix starter fertilizer allowed a 2.3 – 3.8-fold increase in the number of runners obtained and 1.9-3.5-fold increase in the number of sockets obtained compared to the control without fertilizers.
The Injustice Facing Latino Immigrants in Achieving The American Dream in Cristina Heriquez’s Novel The Book of Unknown
Authors: Sandjojo Cintia Aaliyah , Basuki Imam , Kusumayanti Dina Dyah 
Published: December 2022

United States of America is known as a country that promises its people or immigrants who come to America to become successful by providing ‘American Dream’ as the country’s national ethos. These people are given equal chances to bring out their dreams and aspirations. However, American Dream is not always the dream for everyone as experienced by the characters in Christina Henriques’ novel The Book of Unknown Americans. Issue of injustice shadows immigrants who are in search of this dream. Facing problems of injustice such as racism, different treatment of immigrants, and sexual harassment are inevitable for these Latino people when they first come to the United States. This study is aimed at discussing the failures and injustices that Latino immigrants’ characters of the novel must face when they attempt of achieving the American Dream. The method used in this study is qualitative method. The data of this research are in the forms of language and its discourse. Stuart Hall’s Theory of Representation is used to analyze the research data. The results of this study show that not all-American dreams can be fulfilled easily, in particular for Latino immigrant characters in the novel. What have been faced by these characters are significant experiences to learn for anyone who wants to pursue their dream in United States of America.
Online gaming and smartphone addictions in children and adolescents with primary headaches: A prospective case-control study
Authors: YILMAZ Arzu , GÖKER Zeynep , AYDIN GÖRÜCÜ Rezzan , TAŞAR Serçin 
Published: December 2022

Aim: There is a few studies examining primary headaches and online gaming or smartphone addiction in line with causality.
Material and Method: Children and adolescents, aged 11-18 years old, those diagnosed with primary headaches of tension-type headache or migrain were evaluated in terms of smartphone and online game addiction. Smartphone Addiction Scale-Short Version (SAS-SV) and Online Game Addiction Scale (OGAS) was used. SPSS 17.0 program was used for statistical analyses.
Results: Children and adolescents with or without primary headaches had similar online game and smart phone usage pattern.
Conclusion: There is a need for further studies regarding primary headaches and its underlying factors in terms of online gaming or smart phone usage.
SPACED VOCABULARY ACQUISITION WHILE INCIDENTAL LISTENING BY ESL UNIVERSITY STUDENTS
Authors: Zubenko Tetiana , Gavrylenko Anastasiia , Zhyvotovska Tetyana , Vasylieva Nadiia 
Published: December 2022

Based on a prior study by Zubenko and Shwedel (2019), the present study investigated the possible effects of repetition (repeated exposure) on the incidental acquisition and retention of 120 English target words by 51 Ukrainian-speaking ESL learners at a Ukrainian university. The hypothesis was that regular repetition of vocabulary while incidental listening would have a significant and positive effect on students’ vocabulary acquisition and performance. The paper examines the results of the implementation of spaced repetition of L2 vocabulary strategy of the second-year students who were covering the same vocabulary they learned during the experiment in the previous year. 7 audio lessons were created for increasing the long-term retention of target vocabulary in the students’ memory. Participants (N=51) were second-year Ukrainian university students majoring in English as a second language (ESL) at the age of 17-19. They were assigned to three groups, one experimental and two comparison. The optimal result based on the interval of repetitions influences the vocabulary recall and retention. Students who used the spaced L2 vocabulary acquisition strategy (SVAS) outperformed on the End-of-Experiment test 84,1 versus 80,6 for the Comparison group. The results prove that spaced L2 vocabulary acquisition strategy is an efficient part of enriching new vocabulary. The findings indicate that implications of this research are connected with the spaced vocabulary acquisition strategy as an effective tool for learning new lexical units by ESL learners while incidental listening to the audio dictionary lessons. Thus, the study results open up new possibilities for the teachers and learners to consider implementing audio dictionaries and similar tools as assets for efficient vocabulary learning.
The Analysis Of Parental Participation In Improving Children's Learning Motivation During The Covid-19 Pandemic
Authors: EL-Taro Erra , Aryani Maria Lilis 
Published: December 2022

<span>Covid-19 has hit many countries in the world, including Indonesia. This epidemic has affected many sectors of life, including the education sector. The government's rules regarding the Implementation of Learning from Home is one of their effort to reduce the spread of Covid-19. In this regard, teachers and parents have involvement in increasing the children's learning motivation. This research raised parental participation in providing learning motivation to students during Distance Learning. The method used in this research is the literature review and survey method. The researcher used several reference books and questionnaires with the type of scale being differential semantic that had the highest score is five and the lowest score is one. The result of this research is the participation of parents in providing learning motivation to students during distance learning consists of three aspects: facilities, time, and child psychology. The percentage of the role of parents in motivating children in the aspect of facilities is 94.78%; in time aspect is 97.68%, and in the psychology of children aspect is 94.78%. So, most parents in grades V and VI have tried to increase learning motivation in distance learning during a pandemic. </span>
The downstream impact of the first and second filling of the Grand Ethiopian Renaissance Dam
Authors: Salhi Adil , Benabdelouahab Sara 
Published: December 2022

Abstract
Water conflicts arise from geostrategic factors that hide behind visible ones such as the construction of dams. In the case of the Grand Ethiopian Renaissance Dam (GERD), it will have a significant impact on development in Ethiopia, but its filling has worried downstream countries about altering the flow of the Nile and associated ecosystems. In this study, several high spatiotemporal resolution remote sensing products were used on the basis of artificial intelligence in Google Earth Engine. The results show that the two first filling phases had no effect on the reservoirs of the dams in Sudan and Egypt, nor on the vegetation cover. On the contrary, significant reserves of water have been stored in response to unusual floods in the White Nile, and the recent trend of increasing vegetation cover has not been affected likely due to groundwater contributions and judicious anticipation, and the provision of resources for food security. In general, the parties must take long-term collaborative measures to ensure effective management and reduce waste, especially in the upcoming filling.
Use of Green Fluorescent Nano-sensors for the Determination of Furosemide in Biological Samples and Pharmaceutical Preparations
Authors: Zaid Mona H. Abo , El-Enany Nahed , Mostafa Aziza E. , Hadad Ghada M. , Belal Fathalla 
Published: December 2022

Abstract
A facile green microwave-assisted method was developed for the production of highly fluorescent nitrogen doped carbon quantum dots (N-CQDs) using sucrose and urea as starting materials. The fluorescent N-CQDs were utilized as nano-sensors for the spectrofluorimetric estimation of furosemide after subjecting to extensive spectroscopic characterization. The quantum yield of the obtained N-CQDs was found to be 0.57. After excitation of the produced N-CQDs at 216 nm, a strong emission band appeared at 376 nm. The fluorescence emission of N-CQDs was quantitatively quenched by adding increased concentrations of the drug. A linear relationship was obtained over the concentration range of 0.1–1.0 μg/mL. The developed method was successfully applied for the estimation of furosemide in its pharmaceutical preparations and biological samples. The mechanism of the quenching was studied and explained. Interference likely to be introduced from co-administered drugs was also studied.
Refractive Status and Amblyopia Risk Factors in Premature Infants with Different Gestational Age and Birth Weight
Authors: Cao Yiwen , Yang Liu 
Published: December 2022

Abstract
Objective: To explore amblyopia risk factors in premature infants vs. full term infants, low birth weight(LBW) vs. very low birth weight(VLBW) infants, and moderately/late preterm(PT) vs. very preterm(VPT) infants.
Methods: A total of 143 premature infants without retinopathy of prematurity were collected and then grouped according to body weight and gestational age. There were 130 full term infants in the control group. Infants about 1 year of age at risk for amblyopia were selected using Spot Vision Screener. Differences in amblyopia risk factors between full term infants and premature infants, between the LBW group and VLBW group, and between the PT group and VPT group were then analyzed.
Results: In terms of refractive status, diopter cylinder(DC) was higher in the premature infants than in full term infants; diopter sphere(DS) and spherical equivalent(SE) was higher in the VPT group than in the PT group. The prevalence of esotropia was higher in premature infants than in full term infants, and in the VPT group than in the PT group. As shown by the analysis, amblyopia risk factors were found in 10.5% premature infants vs. 3.9% full term infants, 4.7% LBW infants vs. 19.0% VLBW infants, and 5.1% PT infants vs. 16.9% VPT infants. All observed differences were statistically significant. Conclusion: Based on the screening results, the incidence rate of amblyopia risk factors was higher in premature infants than in full term infants, and it was highest in both VPT infants and VLBW infants. The major risk factors were astigmatism and esotropia.
Knowledge of nosocomial infections, standard precautions, and source of information among physiotherapy undergraduates in Sri Lanka; an observational study
Authors: Rubasinghe Sahan , Priyadarshani Kokila , Wijesundara Pramodha , Ramyamala Singappulige , Lakmal Krishantha , Bandara Anuradhi , Dasanayaka Renuka 
Published: December 2022

Abstract
Background:
The physiotherapists are one of the first contact health care professionals’ and physiotherapy undergraduates should have sufficient knowledge of nosocomial infections, standard precautions, and hand hygiene even during their training period. Hence the purpose of this study was to assess the knowledge of nosocomial infections, standard precautions, and source of information among physiotherapy undergraduates in Sri Lanka.
Methods:
Descriptive cross sectional Google based survey study was conducted with the participation of 294 of physiotherapy undergraduates in University of Peradeniya (n=103), University of Colombo (n=103), and Kotalawala Defense University (n=88). Self-constructed data sheets for socio-demographic and source of information and Infection Control Standardized Questionnaire consisted with 3 domains; knowledge of nosocomial infections, standard precautions and hand hygiene was used for data collection.
Results:
76.50% (n=225) participants have achieved adequate level of total knowledge and have average knowledge 67.14±16.831, 84.41±14.679 and 66.41±15.408 on the nosocomial infections, standard precautions and hand hygiene respectively. 28.31% (n=83) have equally mentioned, formal teaching at faculty and informal sources as the most important source of knowledge. There was no significant impact of the university and the duration of clinical exposure on knowledge of nosocomial infections, standard precautions, hand hygiene and total knowledge. The study year have a significant impact and the final year undergraduates have higher knowledge compare with other study years. Female group has significant impact on total knowledge.
Conclusion:
Knowledge of nosocomial infections and infection control measures are satisfactory among the physiotherapy undergraduates in Sri Lanka. Nevertheless, for further development of formal sources of information on nosocomial infections are recommended.