The influence of internet communities on communication-social processes in the networked environment

Primenom teorija digitalnih komunikacija i sociologije veba i empirijskih dokaza, u doktoratu pažnja će biti posvećena pitanju mogućnosti primene internet tehnologija u oblasti visokog obrazovanja. Kroz kategorije nove društvenosti i umreženog zajedništva, procesi saradnje i interakcije su istraženi, i testirane su komunikacione mogućnosti internet zajednica u Srbiji. Biće analizirani i predstavljeni novi fenomeni koje se pojavljuju u praksama komunikacije i učešća u naprednim inteligentnim sistemima, kao što je visokoškolska zajednica.By deploying theories of digital communications and sociology of web, as well as the empirical evidence - in the thesis attention will be paid to the issue of the possibilities of application of Internet technologies in the area of higher education. Through categories of new sociability and networked community, the processes of collaboration and interaction are explored, and communication possibilities in the internet communities in Serbia are tested. New phenomena that emerge in the communication and collaboration practices in an advanced intelligent system, such is a higher education community, will be analysed

The influence of internet communities on communication-social processes in the networked environment

Primenom teorija digitalnih komunikacija i sociologije veba i empirijskih dokaza, u doktoratu pažnja će biti posvećena pitanju mogućnosti primene internet tehnologija u oblasti visokog obrazovanja. Kroz kategorije nove društvenosti i umreženog zajedništva, procesi saradnje i interakcije su istraženi, i testirane su komunikacione mogućnosti internet zajednica u Srbiji. Biće analizirani i predstavljeni novi fenomeni koje se pojavljuju u praksama komunikacije i učešća u naprednim inteligentnim sistemima, kao što je visokoškolska zajednica.By deploying theories of digital communications and sociology of web, as well as the empirical evidence - in the thesis attention will be paid to the issue of the possibilities of application of Internet technologies in the area of higher education. Through categories of new sociability and networked community, the processes of collaboration and interaction are explored, and communication possibilities in the internet communities in Serbia are tested. New phenomena that emerge in the communication and collaboration practices in an advanced intelligent system, such is a higher education community, will be analysed

Making Sense of Microposts (#Microposts2015) Social Sciences Track

For the first time in its five year history the #Microposts workshop features a designated Social Science track. This paper introduces this new track by situating it within the overall workshop objectives. It highlights the importance of interdisciplinary studies in the attempt to make sense of Web user activities in general, and in the generation and consumption of Microposts in particular. This paper provides examples of related work in the field, such as Computational Social Science, reviews previous contributions to the #Microposts by the Social Science research community, and introduces the two papers presented in the track

Making Sense of Microposts (#Microposts2016) Computational Social Sciences Track

For the second time, the #Microposts workshop features a track to highlight social science perspectives on micro communication structures in online environments. This paper introduces the #Microposts2016 (Computational) Social Science Track, which all contribute to connecting research methods and approaches in computer science and social science. By providing a forum for closer interaction between the two fields, the track is becoming a platform for interdisciplinary projects and new ideas to combine different methodologies and theories. For this year’s special track we see the trend of relating Microposts to external demographics or survey data as a way to better understand Microposts in their broader contexts

VOLCANISM OF HOT SPOTS ON THE RÉUNION AS THE EXAMPLE

Réunion (French: La Réunion, formerly: Īle Bourbon) is beside the Mauritius the largest and the youngest island on the Mascarene Plateau in the Indian Ocean. The island is of volcanic origin, formed through volcanic activity initiated by deeply settled “hot spot” inside the Earth’s mantle. It was formed within the last 2 million years from lava effusions whose volume is up to now nearly 75,000 km3. Only 3% of its volume is emergent and the total height from the sea floor is 6,500 m. The island is about 40 km in width with about 800,000 inhabitants. The capital city is St Denis. The nature of the island is impressive: active volcano, mountains above 3,000 m in height and deep canyon, frequently exceeding 2,000 m in depth. Since 2010, about 40% of its area is announced a National park and a UNESCO World Heritage site

Effects of induced maternal hypothyroidism on the ovarian development of offspring rats

The effects of propylthyouracil (PTU) induced hypothyroidism of rats during pregnancy and lactation on offspring ovarian development and maturation were studied. Thyroid hormones and thyroid stimulating hormone (TSH) concentrations were determined using the radioimmunoassay method in order to verify the hypothyroid status of treated mothers and their two months old pups. The ovaries of the offspring were processed for light microscopy analysis on the day of the first estrus after the 60th day of age. Histological analysis including follicle count was performed on serial sections stained with haematoxyline/eosin and on semithin sections stained with methylene blue. A significant increase of serum TSH and decrease in T3 and T4 levels was observed in treated mothers compared to controls. The levels of measured hormones in the control and PTU-treated two months old rats were not significantly different. Ten percent of 60-dayold treated females did not reach estrus and they were sacrificed in diestrus. The secondary interstitial cells were the dominant structures in the ovaries. The number of healthy growing and early antral follicles was markedly decreased. Ovaries of treated rats contained relatively few antral follicles, significantly more atretic antral follicles and a decreased number of corpora lutea, compared to controls. These results indicate that lack of thyroid hormones during prenatal and early postnatal development impair ovarian development in rats. [Projekat Ministarstva nauke Republike Srbije, br. 175061

Istorijske etape u tranziciji prirodnog obnavljanja stanovništva Srbije

This paper examines the problem of demographic transition of natural replacement of the Serbian population since the mid-nineteenth century to 2010. The special attention is given to analyzing trends in birth rate, mortality and population growth through the historical periods in which started and in which the transformation of demographic trends was being done, from the model of extended natural replacement and population expansion to the depopulation model. The specific progress of transitional trends is shown in the natural replacement of population at the macro-regional levels in Serbia (Central Serbia, Vojvodina and Kosovo and Metohija), especially at the meso-regional and local level in the geospace of Serbia (municipalities, districts, regions).U radu se razmatra problematika demografske tranzicije prirodnog obnavljanja stanovništva Srbije od sredine XIX veka do 2010. Godine. Posebno se prate trendovi u natalitetu, mortalitetu i prirodnom priraštaju kroz istorijske epohe u kojima je započeta i u kojima se odvijala transformacija demografskih tokova, od modela proširene prirodne reprodukcije i populacione ekspanzije do modela nedovoljne zamene generacija. Prikazuje se specifično odvijanje tranzicionih trendova u prirodnom obnavljanju stanovništva na makro regionalnim nivoima Srbije (Centralna Srbija, Vojvodina i Kosovo i Metohija), a posebno na mezo regionalnom i lokalnom nivou u geoprostoru Srbije (opštine, oblasti, regioni)

The Role of Natural Resources in the Ecotourism Development – Residents’ Perceptions in Subotica (Northern Serbia)

Regardless of their type and structure, natural resources represent the basis for industrial and economic development of every country. The aim of this study is to determine and display the natural potential in the territory of the City of Subotica (Vojvodina Province in Northern Serbia), on the basis of four protected natural areas. These areas are: Palić Nature Park, Ludaško jezero Special Nature Reserve, Selevenjske pustare Special Nature Reserve and Subotička peščara Protected Landscape of Exceptional Distinction. All listed areas represent the main aspects for ecotourism development in this part of the country, so one of the aims of the research is to identify key stakeholders that should be involved in proper developing of this form of tourism. When preforming this study, survey research techniques were used. Respondents were Subotica’s residents, who were asked to rate the state of the environment in these surroundings, as well as to give their opinions about the possibilities for the development of ecotourism. Based on the analysis of the dependent and independent variables, it was concluded that the residents are generally satisfied with the conditions of the environment, they also consider that the development of this form of tourism would raise the awareness of locals about the importance of preserving these protected areas. The result may be significant when launching a new tourism product, while preserving the protected areas and adapting for future visitors’ needs

Stereological and immunohistochemical study of the spleen in hypothyroid juvenile rats

The purpose of this work was to investigate the influence of hypothyroidism on spleen tissue morphology and immune cell density in fourteen-day-old juvenile rats. Hypothyroidism in pups (n=10) was induced by administration of propylthiouracil (PTU) in drinking water (1.5 mg/L) to their mothers during pregnancy and period of lactation. Fourteen-day-old pups were sacrificed and the thyroid-stimulating hormone (TSH) serum concentration and thyroid activation index (Ia) were determined. Increased serum level of TSH and increased Ia showed that pups from PTU treated mothers were hypothyroid. White and red spleen pulp, marginal zone and connective tissue volume density has been assessed by using the stereological method. Using immunohistochemistry, the present CD3+ T lymphocytes, CD45RA+ B lymphocytes and CD68+ macrophages were quantified. A significant reduction of volume density of the periarteriolar lymphocyte sheath (Vv(PALS)) and lymphatic follicles (Vvf) due to depletion of T and B lymphocytes respectively, was observed in the spleens of hypothyroid pups compared to controls. The volume density of the red pulp (Vvrp), marginal zone (Vvmz) and connective tissue (Vvct) was increased, as well as the number of CD68+ macrophages in the spleens of hypothyroid pups compared to controls. These results indicate that thyroid hormones might be important for normal development of both, specific and innate immune cells in the spleen during prenatal and early postnatal period

The role of the nutritional status of geriatric patients with gastrointestinal cancer in developing postoperative complications

Background: Many studies have shown that geriatric patients with altered nutritional status are at higher risk of developing complications during medical treatment. Our study aimed to examine the role of preoperative nutritional status in developing postoperative complications and the length of hospital stay in geriatric patients who suffer from cancer and undergo major abdominal surgery. Methods: Prospective research was conducted at the Oncology Institute of Vojvodina from January 2020 until April 2021. This study included 82 patients over 65 years old, who were admitted to have radical surgery for gastrointestinal cancer performed. There were 6 patients excluded from the study. Nutritional status analysis was performed using BMI (Body mass index), preoperative serum albumin level, MNA-SF (Mini nutritional assessmentshort form), and GNRI (Geriatric nutritional risk index). The classification of surgical complications was done using the Clavien-Dindo classification scale. Results: Of the total number of patients, 57 of them (75%) developed at least one surgical complication. Nonsurgical complications have been recognized in 28 patients (36.84%). Overweight patients, according to BMI, had a greater chance of developing grade I (p 98) had a significantly lower chance of developing nonsurgical complications regarding comorbidity exacerbation (p = 0.03), and delirium (p = 0.00). Conclusion: None of the nutritional assessment tools used in our study were better or more efficient than the others in our sample of patients. Precise nutritional status assessment is complex and we cannot use only one scoring system or scale to get accurate results