•A case study of architecting an IoT platform in a private cloud setting.•Aimed for the research in precision agriculture and ecological monitoring.•Enables prototyping of IoT applications in ...research environment.•The paper an example implementation of the proposed architecture.•Evaluation using sensor nodes deployed at the research and end-user facilities.
This paper discusses a case study of designing a private Internet of Things (IoT) enabled platform for the research in precision agriculture and ecological monitoring domains. The system architecture is gradually derived using an approach of multiple, concurrent views. Each view represents an architectural perspective describing the solution from the viewpoint of different stakeholders, such as end-users, researchers, developers, and project managers. The end-user requirements have been identified using a set of high-level scenarios, which capture the context and illustrate the motivation for building the platform. The requirements and architecture of the proposed platform have been derived so that the users of the platform, researchers, and developers on the project, can utilize it for prototyping solutions for these high level use cases. The paper further describes the implementation of the platform and its evaluation using various sensor nodes deployed at the research and end-user facilities. The solution is open to further development with respect to supporting additional IoT protocols, data types, and interfacing to various analytics tools. The proposed architecture can also be implemented using different server platforms and cloud technologies.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK, ZRSKP
A 3-year-old intact male African pygmy hedgehog was presented at the Teaching Hospital of the Faculty of Veterinary Medicine, University of Belgrade, with a growth on the left side of its abdomen. ...After clinical examination, the mass was surgically removed, and histopathological findings indicated a nerve sheath tumor. The hedgehog fully recovered after surgery and was euthanized eight months later due to the appearance of multicentric changes in the internal organs. Further necropsy and macroscopic, cytologic, histopathologic, and immunohistochemical findings revealed that the tumor was a multicentric high-grade T-cell lymphoma. This is an unusual case of an African pygmy hedgehog with two different neoplasms−a nerve sheath tumor followed by lymphoma.
Red-eared sliders (Trachemys scripta elegans) are often kept as pets, even though their sale is prohibited in many countries due the invasiveness of this species. This report describes a case of a ...4-year-old red-eared slider that presented with a month-long history of lethargy and unwillingness to go into the water and was unsuccessfully treated with antibiotics and corticosteroids. Upon clinical and radiological examination, it was discovered that the patient was suffering from intestinal obstruction caused presumably by gravel stones. Medicamentous therapy consisting of meloxicam, lactulose and Ringer?s solution for reptiles was then started and the turtle managed to pass all the ingested stones via the alimentary tract. Control radiological examination has shown no signs of high-density structures in the lumen of the intestines, and the turtle has made a full recovery. With enterotomy often being considered indicated in chelonians suffering from intestinal obstruction caused by gravel, this is, to the best of the authors? knowledge, the first reported case of this kind resolved solely with medicamentous therapy in a red-eared slider.
This study presents data on the marine litter occurrence in the stomachs of fish species living in different marine habitats for the Adriatic and NE Ionian Sea macro-region. “Macro-litter” was ...examined in 614 specimens belonging to 11 species, while micro-litter in 230 specimens belonging to 7 species. The study highlights for the first time the presence of litter in the stomachs of the fish species Citharus linguatula. The occurrence of “macro-litter” in the guts of fish was <3% in both the NE Ionian and N Adriatic but reached 26% in the S Adriatic Sea. Micro-litter occurrence was 40 for the NE Ionian and increased to 87% in the N Adriatic (Slovenian Sea). The ingested “macro” and micro-litter differed among the areas. The marine habitat was found to affect the “macro”-litter ingestion but not the micro-litter.
•First record of marine litter ingestion by the fish Citharus linguatula•“Macro-litter” ingestion varied between areas and marine habitat.•Micro-litter ingestion varied between areas but not between marine habitat.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK, ZRSKP
This article presents findings from an assessment of owners' investments in the welfare of African pygmy hedgehogs (Atelerix albiventris), focusing on feeding, housing, enrichment, hygiene, and ...health practices. Participants were divided into three groups based on how they acquired information about hedgehog care: G1 consulted veterinarians, G2 consulted other owners and breeders, and G3 consulted the internet. Group G3 comprised the largest portion of participants (45%), while G1 had the fewest (22%). The majority of owners fed their hedgehogs commercial food (55%), supplemented with live worms, dry insects, or plants (79%). Most hedgehogs were housed in units smaller than 0.5 square meters (68%), and 84% lacked a hiding "house". Some owners did not provide a hedgehog wheel (17%). Owners consulting veterinarians (G1) were more likely to use commercial food (P < 0.05), spend time interacting with their pets (P < 0.01), wash the wheel daily (P < 0.01), seek veterinary check-ups upon acquisition (P < 0.01), schedule preventive examinations (P < 0.01), and consult veterinarians for health changes (P < 0.01) compared to internet consulters (G3). All G1 owners had hedgehog wheels, significantly more than G2 owners (P < 0.01), where 27% lacked them. Significant differences existed between G1 and G2 in wheel washing frequency, post-acquisition veterinary visits (P < 0.001), preventive check-ups (P < 0.001), and contacting veterinarians for health changes (P < 0.01). Overall, owners across all groups exhibited differences in care practices, including some errors such as inadequate housing.
•Different source of knowlegde caused differences in caring practice for hedgehogs.•The majority of hedgehog owners search the internet for the hedgehog caring tips.•The fewest hedgehog owners try to solve hedgehog health issues on their own.•Consulting a veterinarian ensures optimal pet care and welfare maintenance.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
This research is devoted to the determination of hidden dependencies between the flow of particles that come from the Sun and precipitation-induced floods in the United Kingdom (UK). The analysis ...covers 20 flood events during the period from October 2001 to December 2019. The parameters of solar activity were used as model input data, while precipitations data in the period 10 days before and during each flood event were used as model output. The time lag of 0–9 days was taken into account in the research. Correlation analysis was conducted to determine the degree of randomness for the time series of input and output parameters. For establishing a potential causative link, machine learning classification predictive modeling was applied. Two approaches, the decision tree, and the random forest were used. We analyzed the accuracy of classification models forecast from 0 to 9 days in advance. It was found that the most important factors for flood forecasting are proton density with a time lag of 9, differential proton flux in the range of 310–580 keV, and ion temperature. Research in this paper has shown that the decision tree model is more accurate and adequate in predicting the appearance of precipitation-induced floods up to 9 days ahead with an accuracy of 91%. The results of this study confirmed that by increasing technical capabilities, using improved machine learning techniques and large data sets, it is possible to improve the understanding of the physical link between the solar wind and tropospheric weather and help improve severe weather forecasting.
The angular rough shark, Oxynotus centrina (Linnaeus, 1758), is a poorly known and rare bathydemersal shark inhabiting continental shelves and upper slopes with a significant lack of data and rarely ...published records in the Adriatic Sea in this century. In this paper, we present 20 new occurrences recorded from May 2015 to September 2021, of which 19 are in Croatian and one in Montenegrin territorial waters. Records of juveniles, subadults and adults are reported. Higher number of records off the Kornati archipelago in the central Adriatic Sea suggest that this area is of particular importance for this species. Furthermore, habitats in the Southern Adriatic might have lower density. Due to the nonsystematic research and nonprobabilistic data collection, it is difficult to establish whether the greater number of records in the continental shelf is just an ostensible phenomenon.
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BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SAZU, SBCE, SBMB, UL, UM, UPUK
The sandbar shark (
) is considered rare in the Adriatic Sea and the majority of records originate from the northern Adriatic, where a nursery area for this species close to the Po delta system has ...been repeatedly proposed. This study provides 5 new records and analyses the previously published records of sandbar sharks recorded around the delta of the River Bojana (in Montenegro, in the south-eastern Adriatic). The River Bojana located on the border between Montenegro and Albania, is the second largest river flowing into the Adriatic Sea, where it forms a highly productive ecosystem already known as a local hotspot for smooth-hound sharks (
spp.). New records of sandbar sharks have emerged as a result of citizen science (a social media survey) and direct reports from fishermen. The total length of
juveniles ranged from approximately 800 mm to 1100 mm, and most (n=5) were caught by set gillnets. The data presented here show that juveniles are consistently present around the estuary and indicate the importance of this fragile estuarine ecosystem for sandbar sharks. Additionally, this study also provides morphometric data collected from a single individual.
Many biological aspects of deep-water sharks are poorly known due to their rarity and difficulties in conducting detailed research on them. The angular roughshark (
Oxynotus centrina
) is a rare ...species, critically endangered in the Mediterranean Sea, of which records are scarce across this region. Here we present a record of a female neonate
O. centrina
from the south-eastern Adriatic Sea, caught by a Montenegrin commercial trawler. Scientific observers were present on-board and collected the specimen, which was subsequently analysed in the laboratory. The specimen was 225 mm long (TL), weighed 59.6 g and had an unhealed umbilical scar. To date, records of this species in the Adriatic Sea have comprised of both adult and older juvenile individuals, but no records of neonates were found in the published literature. In this work, the basic biological observations of the specimen are reported.
Mnogi biološki aspekti dubokomorskih morskih pasa slabo su poznati zbog rijetkih nalaza te nedostatka detaljnijih istraživanja. Morski pas prasac (
Oxynotus centrina
) je rijetka i kritično ugrožena vrsta u Sredozemnom moru, a nalazi ove vrste na tom području su oskudni. U ovom radu se prikazuje nalaz novorođene ženke
O. centrina
iz jugoistočnog područja Jadranskog mora, uhvaćene od strane crnogorskog komercijalnog ribarskog broda. Jedinka je prikupljena od strane znanstvenih promatrača koji su bili na brodu u trenutku ulova, te je naknadno analizirana u laboratoriju. Jedinka je bila duga 225 mm (TL), težila je 59,6 g i imala je vidljiv nezarasli pupčani ožiljak. Dosadašnji nalazi ove vrste u Jadranskom moru uključivali su samo odrasle i starije juvenilne jedinke, dok nalazi novorođenih jedinki do sada nisu dokumentirani. U ovom radu su prikazana osnovna biološka zapažanja o analiziranoj jedinci.
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Montenegro has limited data on biological and population parameters of glass eel e.g. accurate time and the number of migration waves, condition, rate of survival, recruitment success, etc. Since the ...early 1980s, the occurrence of glass eels in European waters has decreased significantly. ...after almost 25 years the first research was conducted on glass eel in the river Bojana (Montenegro). Data of the Fulton's condition factor (CF) of the analyzed specimens was calculated from the W (g) and TL (cm) using the formula according to Fulton (1904). Since the number of registered individuals in 2021 did not meet the statistically valid number of individuals for making relevant conclusions about their condition and quality, their basic biometric characteristics will be presented since these are the first findings and descriptions of these individuals after almost 25 years, and a more detailed analysis was done on a sample from 2022. In Europe, glass eels enter estuaries mostly from October to April/May (Elie, 1979). Since Montenegro has limited data on biological and population parameters of glass eels for almost 25 years the first research was conducted on glass eels in the river Bojana (Montenegro).
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