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Structure of edaphic algoflora on agricultural land cultivated with vineyards and orchards in the southern districts of the Republic of Moldova 摩尔多瓦共和国南部地区种植葡萄园和果园的农业土地上的土生藻群结构
Acta et commentationes: Ştiinţe Exacte şi ale Naturii Pub Date : 2022-11-01 DOI: 10.36120/2587-3644.v13i1.116-121
E. Ciobanu
{"title":"Structure of edaphic algoflora on agricultural land cultivated with vineyards and orchards in the southern districts of the Republic of Moldova","authors":"E. Ciobanu","doi":"10.36120/2587-3644.v13i1.116-121","DOIUrl":"https://doi.org/10.36120/2587-3644.v13i1.116-121","url":null,"abstract":"This article addresses the problem related to edaphic algoflora characteristic of vineyards and orchards in the southern districts of the Republic of Moldova. On the basis of the taxonomic structure of some dominant species of algae we can determine the accumulation capacity of nutrients in the soil and, respectively, fertility, due to the fact that algae, due to the metabolic processes, eliminate in the environment a number of bioactive substances, which stimulate the development of crop plants. Thus, the study of edaphic algoflora on agricultural lands is of great interest for Agriculture.","PeriodicalId":340784,"journal":{"name":"Acta et commentationes: Ştiinţe Exacte şi ale Naturii","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128560182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis and study of coordinating agents for the synthesis of new coordination compounds 配位剂的合成与研究，用于合成新的配位化合物
Acta et commentationes: Ştiinţe Exacte şi ale Naturii Pub Date : 2022-11-01 DOI: 10.36120/2587-3644.v13i1.100-109
Ghenadie Chiriac, Sergiu Codreanu
{"title":"Synthesis and study of coordinating agents for the synthesis of new coordination compounds","authors":"Ghenadie Chiriac, Sergiu Codreanu","doi":"10.36120/2587-3644.v13i1.100-109","DOIUrl":"https://doi.org/10.36120/2587-3644.v13i1.100-109","url":null,"abstract":"Two compounds were obtained from the condensation reaction of semicarbazide (hydrazinecarboxamide) and semithiocarbohydrazide (hydrazinecarbothioamide) compounds with a 3-pyridinecarboxaldehyde carbonyl compound: (E)-1-(pyridin-3-ylmethylene)thiourea (L-1) and (E)-1-(pyridin-3-ylmethylene)urea (L-1) (L-2). The structure and composition of these compounds were determined using theoretical calculations with the GAMESS software package and IR spectroscopy. The new organic molecules L-1 and L-2 have the potential to be used as mono- or bidentate coordinating agents in the construction of coordination compounds with various useful properties.","PeriodicalId":340784,"journal":{"name":"Acta et commentationes: Ştiinţe Exacte şi ale Naturii","volume":"428 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115648214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
DFT study of condensation mechanisms of 4-pyridinecarboxaldehyde with o-, m-, p-aminobenzoic acids 4-吡啶甲酸与邻、间、对氨基苯甲酸缩合反应机理的DFT研究
Acta et commentationes: Ştiinţe Exacte şi ale Naturii Pub Date : 2022-11-01 DOI: 10.36120/2587-3644.v13i1.122-132
I. Arsene, E. Coropceanu, Viorica Purcel
{"title":"DFT study of condensation mechanisms of 4-pyridinecarboxaldehyde with o-, m-, p-aminobenzoic acids","authors":"I. Arsene, E. Coropceanu, Viorica Purcel","doi":"10.36120/2587-3644.v13i1.122-132","DOIUrl":"https://doi.org/10.36120/2587-3644.v13i1.122-132","url":null,"abstract":"It was theoretically studied the mechanism of the condensation reaction of 4-pyridinecarbo-xaldehyde with o-, m- and p-aminobenzoic acids. Theoretical calculations represent a primary advantage in studying these reactions, along with the determination of a wide range of molecular properties. The studied reactions take place in two stages, each stage is accompanied by a transition state and for each stage it is calculated the activation energy. Thermodynamically speaking, all reactions are endothermic and the most convenient from an energetic point of view is the reaction for obtaining 4-(pyridine-3-yl-methylene amino) benzoic acid in methanol with an energy value of 9.98 kcal/mol.","PeriodicalId":340784,"journal":{"name":"Acta et commentationes: Ştiinţe Exacte şi ale Naturii","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127966365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Actual applications of infrared spectrophotometry in determining the quality of daily products 红外分光光度法在日常用品质量测定中的实际应用
Acta et commentationes: Ştiinţe Exacte şi ale Naturii Pub Date : 2022-11-01 DOI: 10.36120/2587-3644.v13i1.31-39
Natalia Rotari, Elena Coscodan, Diana Chisca
{"title":"Actual applications of infrared spectrophotometry in determining the quality of daily products","authors":"Natalia Rotari, Elena Coscodan, Diana Chisca","doi":"10.36120/2587-3644.v13i1.31-39","DOIUrl":"https://doi.org/10.36120/2587-3644.v13i1.31-39","url":null,"abstract":"Fourier transform infrared spectroscopy (FTIR) is a fast and non-destructive analytical method. Combined with chemometrics, it is a powerful tool for the pharmaceutical, cosmetics and food industries. This method can be used for qualitative and quantitative analysis of medicines, foods and other daily products. At the same time, IR spectroscopy is becoming a suitable technique in the processes of drug preparation and for monitoring the productive processes in quality control laboratories. In this paper, IR spectroscopy is used to determine the concentration of alcohol in hand sanitizers, which is essential for slowing the spread of viruses. The effectiveness of hand sanitizer is entirely determined by the volatile ingredient, alcohol, which must remain at a concentration greater than 60% (volume) to destroy bacterial and viral pathogens. The selected samples varied according to the initial concentration of ethyl alcohol, manufacturer, color, perfume and other ingredients, as well as the validity period.","PeriodicalId":340784,"journal":{"name":"Acta et commentationes: Ştiinţe Exacte şi ale Naturii","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132996848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The influence of environmental factors on caudate amphibians at the national, regional and european level: synthetic eco-evolutionary analysis 环境因子对国家、区域和欧洲尾状两栖动物的影响:综合生态进化分析
Acta et commentationes: Ştiinţe Exacte şi ale Naturii Pub Date : 2022-11-01 DOI: 10.36120/2587-3644.v13i1.49-58
Tudor Cozari
{"title":"The influence of environmental factors on caudate amphibians at the national, regional and european level: synthetic eco-evolutionary analysis","authors":"Tudor Cozari","doi":"10.36120/2587-3644.v13i1.49-58","DOIUrl":"https://doi.org/10.36120/2587-3644.v13i1.49-58","url":null,"abstract":"Based on the data obtained in the field and those selected from the specialized literature, there was carried out a synthetic eco-evolutionary analysis of the biology, ecology and ethology of the populations of caudate amphibians at the national, regional and European level. The data obtained can serve as a support scientific-methodological for the evaluation of the ecological status of the populations of caudate amphibians and their conservation.","PeriodicalId":340784,"journal":{"name":"Acta et commentationes: Ştiinţe Exacte şi ale Naturii","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123448167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Determination of the degree of helminth infestation of the ecaudate amphibians (the Anura: Ranidae, Bufonidae) depending on the biotic factors in conditions of the Republic of Moldova 根据摩尔多瓦共和国的生物因素确定有尾两栖动物(无尾目:蛙科，蟾科)的蠕虫侵扰程度
Acta et commentationes: Ştiinţe Exacte şi ale Naturii Pub Date : 2022-11-01 DOI: 10.36120/2587-3644.v13i1.22-30
Elena Gherasim, D. Erhan, V. Coada, Ana Tiganas
{"title":"Determination of the degree of helminth infestation of the ecaudate amphibians (the Anura: Ranidae, Bufonidae) depending on the biotic factors in conditions of the Republic of Moldova","authors":"Elena Gherasim, D. Erhan, V. Coada, Ana Tiganas","doi":"10.36120/2587-3644.v13i1.22-30","DOIUrl":"https://doi.org/10.36120/2587-3644.v13i1.22-30","url":null,"abstract":"In this study is made an ecological analysis of the species composition, structure of the helminth community and the invasion degree of Ranidae and Bufonidae families in different habitats in Moldova. As a result, it has been established the presence of 17 helminths species. It was found that the diversity of helminth fauna of the studied amphibians is structured depending on the host species, biotop, biotic factors, gender and depending of the host onthogenesis. Thus, the greatest diversity of helminthes in amphibians in the family Ranidae was established in Rana ridibunda and Rana lessonae with 17 species, and for the species from the Bufonidae family, no different values were established, so each host species being infested with 3 species of helminthes.","PeriodicalId":340784,"journal":{"name":"Acta et commentationes: Ştiinţe Exacte şi ale Naturii","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115633405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Processes and technologies applicable to the exploitation of non-wood forest products in the Republic of Moldova 适用于摩尔多瓦共和国非木材林产品开发的工艺和技术
Acta et commentationes: Ştiinţe Exacte şi ale Naturii Pub Date : 2022-11-01 DOI: 10.36120/2587-3644.v13i1.7-21
Gheorghe Novac
{"title":"Processes and technologies applicable to the exploitation of non-wood forest products in the Republic of Moldova","authors":"Gheorghe Novac","doi":"10.36120/2587-3644.v13i1.7-21","DOIUrl":"https://doi.org/10.36120/2587-3644.v13i1.7-21","url":null,"abstract":"The aim of this research is to analyze the organization of the collection and processing of non-wood forest products in the Republic of Moldova. In order to achieve the goal, the following objectives were set: characterization of NWFPs harvesters, to establish and describe the technological processes applicable to the valorization of non-wood forest products; to analyze the organization of the collection and processing of non-wood forest products. The objectives were achieved through direct observations with NWFPs harvesters by conducting the questionnaire survey. The non-probability sampling technique used is called snowball sampling.","PeriodicalId":340784,"journal":{"name":"Acta et commentationes: Ştiinţe Exacte şi ale Naturii","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124762924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structure of helminth fauna in Apodemus uralensis (Pallas, 1771) from natural and anthropized ecosystems of the Republic of Moldova 摩尔多瓦共和国自然生态系统和人类生态系统乌拉尔足鼠(Pallas, 1771)蠕虫区系结构
Acta et commentationes: Ştiinţe Exacte şi ale Naturii Pub Date : 2022-11-01 DOI: 10.36120/2587-3644.v13i1.40-48
O. Chihai, V. Nistreanu, A. Larion, S. Rusu, N. Talambuta, M. Zamornea, Galina Melnic, Oxana Kolodrevski
{"title":"Structure of helminth fauna in Apodemus uralensis (Pallas, 1771) from natural and anthropized ecosystems of the Republic of Moldova","authors":"O. Chihai, V. Nistreanu, A. Larion, S. Rusu, N. Talambuta, M. Zamornea, Galina Melnic, Oxana Kolodrevski","doi":"10.36120/2587-3644.v13i1.40-48","DOIUrl":"https://doi.org/10.36120/2587-3644.v13i1.40-48","url":null,"abstract":"The taxonomic structure consists of 3 classes, 10 families, 12 genera and 13 species, of which 6 parasitic species belong to the Cestoda class (Skrjabinotaenia lobata, Catenotaenia cricetorum, Hydatigera taeniaeformis, Hydatigera taeniaeformis, Taenia pisiformis, Paranoplocephala omphaloides, Rodentolepis straminea), with a share of 46.1% of the total species, 5 species - to the Secernentea class (Syphacia obvelata, Syphacia stroma, Heligmosomoides polygyrus, Mastophorus muris, Strongyloides ratti) with a share of 38.5%, and 2 species – to the Adenophorea class (Trichuris muris, Capillaria hepatica), constituting 15.4% of the total identified species.","PeriodicalId":340784,"journal":{"name":"Acta et commentationes: Ştiinţe Exacte şi ale Naturii","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133911490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The specificities of the thinking process in adolescents. Clip thinking 青少年思维过程的特殊性。剪辑思考
Acta et commentationes: Ştiinţe Exacte şi ale Naturii Pub Date : 2022-11-01 DOI: 10.36120/2587-3644.v13i1.59-63
Diana Koshkodan, Lora Mosanu-Supac
{"title":"The specificities of the thinking process in adolescents. Clip thinking","authors":"Diana Koshkodan, Lora Mosanu-Supac","doi":"10.36120/2587-3644.v13i1.59-63","DOIUrl":"https://doi.org/10.36120/2587-3644.v13i1.59-63","url":null,"abstract":"The article describes the so-called clip thinking in adolescents. It has been established that, despite the existing data in the literature on the influence of the Internet on cognitive processes, a decrease in the speed of thought processes in adolescents has not been confirmed. At the same time, there were found a greater number of errors in the reproduction of information in adolescents compared to adults.","PeriodicalId":340784,"journal":{"name":"Acta et commentationes: Ştiinţe Exacte şi ale Naturii","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125301240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Aspects on the bird fauna's diversity in the sector Golăiești - Cotul Bran (Iași county, Romania) 该部门鸟类动物群多样性的各个方面Golăiești - Cotul Bran (Iași县，罗马尼亚)
Acta et commentationes: Ştiinţe Exacte şi ale Naturii Pub Date : 2022-11-01 DOI: 10.36120/2587-3644.v13i1.64-81
Diana-Roxana Tofanescu, C. Gache
{"title":"Aspects on the bird fauna's diversity in the sector Golăiești - Cotul Bran (Iași county, Romania)","authors":"Diana-Roxana Tofanescu, C. Gache","doi":"10.36120/2587-3644.v13i1.64-81","DOIUrl":"https://doi.org/10.36120/2587-3644.v13i1.64-81","url":null,"abstract":"The present study had followed to evaluate the bird fauna’s diversity and the seasonal dynamic of birds’ population in the sector of Golăiești – Cotul Bran, related to the common Jijia and Prut Rivers’ basin. We did our fieldwork in the years 2014 and 2015. The bird fauna’s list includes 117 bird species. The typically woodland bird species are dominant like diversity, but also through their effectives. The wetland bird species present small populations, appearing during the migration time. The breeding bird fauna include 77 certainly breeding species, other 6 species being irregular or probably breeding species in the area. During our study, we identified 21 bird species that appear in the Annex 1 of Birds’ Directive, respectively, 12 bird species included in the Romanian Red Book of Vertebrates.","PeriodicalId":340784,"journal":{"name":"Acta et commentationes: Ştiinţe Exacte şi ale Naturii","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125044938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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