Trakia Journal of Sciences最新文献_第7页

EFFECT OF SALT STRESS ON RICE SEED GERMINATION AND SEEDING GROWTH 盐胁迫对水稻种子萌发和幼苗生长的影响

Trakia Journal of Sciences Pub Date : 2022-01-01 DOI: 10.15547/tjs.2022.04.004

G. Desheva, S. Tosheva, E. Valchinova, A. Pencheva

{"title":"EFFECT OF SALT STRESS ON RICE SEED GERMINATION AND SEEDING GROWTH","authors":"G. Desheva, S. Tosheva, E. Valchinova, A. Pencheva","doi":"10.15547/tjs.2022.04.004","DOIUrl":"https://doi.org/10.15547/tjs.2022.04.004","url":null,"abstract":"PURPOSE: the purpose of the study was to analyse the influence of different NaCl concentrations on germination and seedling parameters in three rice cultivars belong to species Oriza sativa L. - Osmanchik 97, Kameo and Luna. METHODS: six NaCl salt concentrations were studied (low concentrations: 25 mM and 50 mM NaCl solutions, medium concentrations: 75 mM and 100 mM NaCl solutions and high concentrations: 125 mM and 150 mM NaCl solutions). Germination data and seedling parameters were recorded. RESULTS: The application of salt concentrations between 25 and 150 had no significant effect on seed germination, while suppressive effect on seedling characteristics. At 150 mM NaCl mean germination time ranged from 2.10 days (for Osmanchik 97) to 3.15 days (for Kameo), mean ShL ranged from 3.65 cm for Kameo to 5.33 cm for Osmanchik 97. With increasing concentrations of NaCl vigor index decreased from 2043 for Osmanchik 97 (control) to 1050.24 for the variety Kameo. CONCLUSION: At 150 mM NaCl concentrations, the studied varieties showed very high salt tolerance to seed germination, high salt tolerance to root growth and medium salt tolerance to shoot growth. Тhe study confirmed that rice cultivars at the stage of seed germination are more tolerant to salinity than at the early seedling stage.","PeriodicalId":30048,"journal":{"name":"Trakia Journal of Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67464212","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

SPIRAL THEORY OF THE HUMAN BODY: THE POSITIVE AND NEGATIVE SPACE IN HUMAN EMBRYONIC DEVELOPMENT 人体螺旋理论:人类胚胎发育的正负空间

Trakia Journal of Sciences Pub Date : 2022-01-01 DOI: 10.15547/tjs.2022.04.008

N. Pirovski, I. Ivanova, S. Hamza

引用次数: 0

GALLOWAY BREED IN BULGARIA – CONTRIBUTION TO SUSTAINABLE BEEF CATTLE BREEDING 保加利亚的加洛韦品种-对可持续肉牛养殖的贡献

Trakia Journal of Sciences Pub Date : 2022-01-01 DOI: 10.15547/tjs.2022.02.004

D. Yarkov

{"title":"GALLOWAY BREED IN BULGARIA – CONTRIBUTION TO SUSTAINABLE BEEF CATTLE BREEDING","authors":"D. Yarkov","doi":"10.15547/tjs.2022.02.004","DOIUrl":"https://doi.org/10.15547/tjs.2022.02.004","url":null,"abstract":"It is important for beef cattle breeding to ensure responsible animal husbandry and food production, which entails economic, social and environmental implications. Furthermore, it is essential to guarantee a genetic resource prepared for the different challenges of our times. This study includes information about beef cattle breeding in Bulgaria, and describes the characteristics of the Galloway breed. The numerical data presented in the study are based on the available information included in various references in the Agrostatistics database of the Ministry of Agriculture and Foods, agrarian reports of the same ministry and the Executive Agency for Selection and Reproduction in Animal Breeding (EASRAB). The Galloway breed is one of the oldest and purest of local cattle breeds. They are known for their resilience and can subsist on the scarcest of lands, which is important under the conditions of current climatic and other challenges. Regarding the Genetic Reserve and the Gen Bank, registered by the EASRAB, the available information shows that there is no registered reserve and genetic bank for the Galloway breed in Bulgaria. This requires further studies and proposals for the inclusion of the Galloway breed in the selection and reproduction aimed at the development of sustainable beef cattle farming.","PeriodicalId":30048,"journal":{"name":"Trakia Journal of Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67462761","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

HISTOLOGIC AND MICROMETRIC STUDY OF THE PROVENTRICULUS AND GIZZARD OF THE WILD BRONZE TURKEY (MELEAGRIS GALLOPAVO) 野生青铜火鸡(meleagris gallopavo)前心室和砂囊的组织学和显微学研究

Trakia Journal of Sciences Pub Date : 2022-01-01 DOI: 10.15547/tjs.2022.02.003

D. Yovchev

{"title":"HISTOLOGIC AND MICROMETRIC STUDY OF THE PROVENTRICULUS AND GIZZARD OF \u0000THE WILD BRONZE TURKEY (MELEAGRIS GALLOPAVO)","authors":"D. Yovchev","doi":"10.15547/tjs.2022.02.003","DOIUrl":"https://doi.org/10.15547/tjs.2022.02.003","url":null,"abstract":"The purpose of the present study was to investigate the histologic and micrometric study of the proventriculus and gizzard of the wild bronze turkey (Meleagris gallopavo). Thirty clinically healthy Bronze turkeys (15 females and 15 males) were used for the study. Twelve tissue samples (six from the proventriculus and six from gizzard) from the corresponding age group were used to prepare histological slides. The preparations were stained with hematoxylin (Erlich) - eosin and Masson’s trichrome. The wall of the proventriculus was composed of four layers. They were tunica mucosa, tunica submucosa, tunica muscularis and tunica serosa. Mucosa had many grooves and plicae with simple columnar epithelium. The proventricular submucosa had compound tubuloalveolar glands which took the greatest part of the wall. The gizzard had tunica mucosa, tunica muscularis and tunica serosa. Compound tubular glands were found in the mucosa. On the mucosal surface was observed a thick keratinized layer, which was produced by the glands. In lamina propria mucosae were found compound tubular glands which opened on the mucosal surface by a short neck. The glands in the grooves were more branched, compared to those localized in the folds. Lamina muscularis mucosae was not found.","PeriodicalId":30048,"journal":{"name":"Trakia Journal of Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67462932","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: 2

UNUSUAL FOREIGN BODY IN THE RESPIRATORY TRACT OF CHILDREN 儿童呼吸道异常异物

Trakia Journal of Sciences Pub Date : 2022-01-01 DOI: 10.15547/tjs.2022.02.013

A. Vlaykov

{"title":"UNUSUAL FOREIGN BODY IN THE RESPIRATORY TRACT OF CHILDREN","authors":"A. Vlaykov","doi":"10.15547/tjs.2022.02.013","DOIUrl":"https://doi.org/10.15547/tjs.2022.02.013","url":null,"abstract":"Objective: By \"foreign bodies\" should be understood all objects of external or internal origin that may block partially or completely the lumen of some parts of the respiratory system - nasal passages, larynx, trachea, bronchi. Most often foreign bodies in the respiratory tract occur in children under 4 y.о. They represent 80% of cases. Twice as often in boys. In 65% of cases, foreign bodies are food particles. 50% of them are accounted for: peanuts, walnuts, hazelnuts, chickpeas, and sunflower seeds. Methods: The author demonstrates a case of an unusual foreign body in the upper airway in a 2 y.o. child. He presented at ENT Clinic in the University Hospital of Stara Zagora with sudden paroxysms of coughing and difficulty swallowing, which started during hugging his mom. Results: It was performed an X-ray examination and visualized an object with a metal consistency that corresponded to a safety pin. Immediately was realized pediatric and anesthesiologist consultation and the patient was taken to the operating theatre and under general anesthesia, the foreign body was removed. Conclusions: Aspiration of foreign bodies in the airways is accompanied by dramatic moments and often fatal and it is still a serious problem in Otorhinolaryngological and pediatric practice. This imposes the serious need to strengthen preventive actions in this direction by increasing the consumer culture of the people.","PeriodicalId":30048,"journal":{"name":"Trakia Journal of Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67463252","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

A CASE OF SINO-NASAL MALIGNANT MELANOMA 鼻鼻恶性黑色素瘤1例

Trakia Journal of Sciences Pub Date : 2022-01-01 DOI: 10.15547/tjs.2022.02.014

A. Vlaykov, S. Valkanov

引用次数: 0

SCIENCE LITERACY OF BULGARIAN STUDENTS THROUGH TEACHERS' VIEW 教师对保加利亚学生科学素养的看法

Trakia Journal of Sciences Pub Date : 2022-01-01 DOI: 10.15547/tjs.2022.03.006

S. Todorova

引用次数: 0

DYNAMIC CHANGES IN THE TERRITORIAL AND SECTORAL STRUCTURE OF EMPLOYMENT IN BULGARIA 保加利亚领土和部门就业结构的动态变化

Trakia Journal of Sciences Pub Date : 2022-01-01 DOI: 10.15547/tjs.2022.03.013

I. Stoycheva

引用次数: 0

CRYOPRESERVATION OF LEISHMANIA DONOVANI PROMASTIGOTES AT -80°C 多诺瓦利什曼原虫原鞭毛菌-80℃低温保存

Trakia Journal of Sciences Pub Date : 2022-01-01 DOI: 10.15547/tjs.2022.04.006

E. Kaneva

引用次数: 0

AN EXPLORATION OF THE AGRO-TOWN IN THE ITALIAN COUNTRYSIDE AND RURAL DISTRICT 意大利农村和农村地区农业小镇的探索

Trakia Journal of Sciences Pub Date : 2022-01-01 DOI: 10.15547//tjs.2022.03.003

N. Galluzzo

{"title":"AN EXPLORATION OF THE AGRO-TOWN IN THE ITALIAN COUNTRYSIDE AND RURAL DISTRICT","authors":"N. Galluzzo","doi":"10.15547//tjs.2022.03.003","DOIUrl":"https://doi.org/10.15547//tjs.2022.03.003","url":null,"abstract":"The primary sector has been completely reshaped by the assignation of specific functions to farmers over the last 25 years, since legislators noted the importance of quality food productions to the rural and agro-industrial sectors and formally established rural and agri-food districts as legal entities. Agro-towns and rural districts in Italy, despite their peculiarities, represent an element of continuity in the path of social and economic development of the Italian countryside, contrasting the risk of marginalisation in rural areas through a propulsive growth of social capital and human interactions. The main purpose of this research was to assess the development of rural districts in some Italian regions as a consequence of the diffusion of agro-towns. The method of investigation has been a theoretical approach aimed at assessing the diffusion of the rural districts from 2016 to 2019 and by a comparison among Italian regions using some maps. Drawing some final remarks, agro-towns represent a fundamental pillar for the growth of the rural district in Italy due to their specificities in terms of social capital and local development, which are able to give a special connotation to the surrounding rural territory in a process of economic growth. In conclusion, the model of the rural district represents a spearhead for the countryside, emphasising all the peculiarities of rural areas where the impact of agro-towns has been significant in the past. The main consequence has been a transition of agro-towns from being degraded structures, where the incidence of agricultural underemployment was high, to structures where, despite the diffusion of large estates, there is an advanced social and economic development able to create a cohesive space that works to contrast the marginalisation of the Italian countryside.","PeriodicalId":30048,"journal":{"name":"Trakia Journal of Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67416700","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