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  1. Article ; Online: Performance Analysis of Wirelessly Powered Cognitive Radio Network with Statistical CSI and Random Mobility.

    Kozić, Nadica / Blagojević, Vesna / Cvetković, Aleksandra / Ivaniš, Predrag

    Sensors (Basel, Switzerland)

    2023  Volume 23, Issue 9

    Abstract: The relentless expansion of communications services and applications in 5G networks and their further projected growth bring the challenge of necessary spectrum scarcity, a challenge which might be overcome using the concept of cognitive radio. ... ...

    Abstract The relentless expansion of communications services and applications in 5G networks and their further projected growth bring the challenge of necessary spectrum scarcity, a challenge which might be overcome using the concept of cognitive radio. Furthermore, an extremely high number of low-power devices are introduced by the concept of the Internet of Things (IoT), which also requires efficient energy usage and practically applicable device powering. Motivated by these facts, in this paper, we analyze a wirelessly powered underlay cognitive system based on a realistic case in which statistical channel state information (CSI) is available. In the system considered, the primary and the cognitive networks share the same spectrum band under the constraint of an interference threshold and a maximal tolerable outage permitted by the primary user. To adopt the system model in realistic IoT application scenarios in which network nodes are mobile, we consider the randomly moving cognitive user receiver. For the analyzed system, we derive the closed-form expressions for the outage probability, the outage capacity, and the ergodic capacity. The obtained analytical results are corroborated by an independent simulation method.
    Language English
    Publishing date 2023-05-06
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s23094518
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: COVID-19 Anxiety and Wellbeing at Work in Finland during 2020-2022: A 5-Wave Longitudinal Survey Study.

    Oksanen, Atte / Oksa, Reetta / Celuch, Magdalena / Cvetkovic, Anica / Savolainen, Iina

    International journal of environmental research and public health

    2022  Volume 20, Issue 1

    Abstract: The COVID-19 pandemic impacted workers globally during 2020-2022 and it has had major psychological implications for workers' wellbeing. This longitudinal study analyzed risk and protective factors predicting COVID-19 anxiety among workers in Finland. ... ...

    Abstract The COVID-19 pandemic impacted workers globally during 2020-2022 and it has had major psychological implications for workers' wellbeing. This longitudinal study analyzed risk and protective factors predicting COVID-19 anxiety among workers in Finland. Longitudinal national sample of Finnish workers (n = 685) participated in a five-wave study conducted in 2020-2022, covering multiple waves of the COVID-19 pandemic and its aftermath. Our outcome measure was COVID-19 anxiety. Predictors were psychological distress, work exhaustion, technostress, and loneliness. Models also controlled for self-regulation; social support at work and remote working; and socio-demographic background factors. Both within-person and between-person effects were analyzed using multilevel hybrid regression models. COVID-19 anxiety varied between time points which is explained by changes in circumstances during the pandemic. Highest anxiety was expressed in the middle of the Delta variant surge and lockdown in spring 2021. Within-person changes in psychological distress, work exhaustion, technostress, self-regulation, and perceived loneliness were all associated with COVID-19 anxiety. Between-person results showed that distressed, exhausted, technostressed, and lonely workers expressed more anxiety than others. Remote workers reported higher anxiety over time than others. Those who had reported high self-regulation reported lower anxiety than others. Female gender and younger age were associated with higher anxiety. COVID-19 anxiety continues to be an important phenomenon with a magnitude of consequences on people and numerous industries. This study showed that general mental health and work stressors predict COVID-19 anxiety. Promoting social support and workers' self-regulation skills can be beneficial for overcoming anxiety during and after the pandemic.
    MeSH term(s) Humans ; Female ; COVID-19/epidemiology ; COVID-19/psychology ; SARS-CoV-2 ; Finland/epidemiology ; Pandemics ; Longitudinal Studies ; Communicable Disease Control ; Anxiety/epidemiology ; Depression
    Language English
    Publishing date 2022-12-30
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2175195-X
    ISSN 1660-4601 ; 1661-7827
    ISSN (online) 1660-4601
    ISSN 1661-7827
    DOI 10.3390/ijerph20010680
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  3. Article ; Online: Outage Analysis of Unmanned-Aerial-Vehicle-Assisted Simultaneous Wireless Information and Power Transfer System for Industrial Emergency Applications.

    Cvetković, Aleksandra / Blagojević, Vesna / Anastasov, Jelena / Pavlović, Nenad T / Milošević, Miloš

    Sensors (Basel, Switzerland)

    2023  Volume 23, Issue 18

    Abstract: In the scenario of a natural or human-induced disaster, traditional communication infrastructure is often disrupted or even completely unavailable, making the employment of emergency wireless networks highly important. In this paper, we consider an ... ...

    Abstract In the scenario of a natural or human-induced disaster, traditional communication infrastructure is often disrupted or even completely unavailable, making the employment of emergency wireless networks highly important. In this paper, we consider an industrial Supervisory Control and Data Acquisition (SCADA) system assisted by an unmanned aerial vehicle (UAV) that restores connectivity from the master terminal unit (MTU) to the remote terminal unit (RTU). The UAV also provides power supply to the ground RTU, which transmits the signal to the end-user terminal (UT) using the harvested RF energy. The MTU-UAV and UAV-RTU channels are modeled through Nakagami-
    Language English
    Publishing date 2023-09-09
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s23187779
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  4. Article: A Rare Case Of Type II Amyand's Hernia.

    Jakovljevic, Stefan / Cvetkovic, Aleksandar / Spasic, Marko / Spasic, Bojan / Petrovic, Marko / Milosevic, Bojan

    JPMA. The Journal of the Pakistan Medical Association

    2023  Volume 73, Issue 7, Page(s) 1518–1520

    Abstract: Amyand's hernia represents an inguinal hernia containing an appendix within the hernia sac. This extremely rare condition occurs in approximately 1% of all inguinal hernias. This report describes the case of an 84-year-old male who presented with a right ...

    Abstract Amyand's hernia represents an inguinal hernia containing an appendix within the hernia sac. This extremely rare condition occurs in approximately 1% of all inguinal hernias. This report describes the case of an 84-year-old male who presented with a right inguinal mass that intraoperatively turned out to be Amyand's hernia type-II with a gangrenous and perforated appendix. An appendectomy and peritoneal lavage were performed, followed by a hernioplasty where a modified Bassini repair was used. The patient fully recovered, and was discharged from the hospital on the fourth day. A non-reducible inguinal hernia containing a perforated appendix is a very rare emergency that requires immediate intervention to prevent abdominal sepsis. Therefore, while examining an inguinal hernia, the possibility of Amyand's hernia should always be considered.
    MeSH term(s) Male ; Humans ; Aged, 80 and over ; Hernia, Inguinal/complications ; Hernia, Inguinal/diagnosis ; Hernia, Inguinal/surgery ; Appendix/surgery ; Appendectomy ; Appendicitis/complications ; Appendicitis/diagnosis ; Appendicitis/surgery ; Gangrene/etiology ; Gangrene/surgery
    Language English
    Publishing date 2023-05-22
    Publishing country Pakistan
    Document type Case Reports
    ZDB-ID 603873-6
    ISSN 0030-9982
    ISSN 0030-9982
    DOI 10.47391/JPMA.6700
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: People With Injection Drug Use-associated Endocarditis Deserve More Than Half a Chance at Surgery.

    Lennox, Robin / Cvetkovic, Anna / O'Shea, Tim

    The Annals of thoracic surgery

    2021  Volume 113, Issue 1, Page(s) 373

    MeSH term(s) Endocarditis/etiology ; Endocarditis/surgery ; Endocarditis, Bacterial/etiology ; Humans ; Pharmaceutical Preparations
    Chemical Substances Pharmaceutical Preparations
    Language English
    Publishing date 2021-03-08
    Publishing country Netherlands
    Document type Letter ; Comment
    ZDB-ID 211007-6
    ISSN 1552-6259 ; 0003-4975
    ISSN (online) 1552-6259
    ISSN 0003-4975
    DOI 10.1016/j.athoracsur.2021.02.064
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  6. Article ; Online: Haemophilus influenzae

    Finlay, Liam / Cvetkovic, Anna / Chagla, Zain

    Journal of the Association of Medical Microbiology and Infectious Disease Canada = Journal officiel de l'Association pour la microbiologie medicale et l'infectiologie Canada

    2020  Volume 5, Issue 1, Page(s) 44–48

    Abstract: Necrotizing fasciitis of an extremity due ... ...

    Abstract Necrotizing fasciitis of an extremity due to
    Language English
    Publishing date 2020-03-04
    Publishing country Canada
    Document type Case Reports
    ISSN 2371-0888
    ISSN (online) 2371-0888
    DOI 10.3138/jammi.2019-0022
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  7. Article ; Online: The Emerging Roles of the Adaptive Immune Response in Acute Pancreatitis.

    Stojanovic, Bojan / Jovanovic, Ivan P / Stojanovic, Milica Dimitrijevic / Jovanovic, Marina / Vekic, Berislav / Milosevic, Bojan / Cvetkovic, Aleksandar / Spasic, Marko / Stojanovic, Bojana S

    Cells

    2023  Volume 12, Issue 11

    Abstract: Acute pancreatitis (AP) is an abrupt, variable inflammatory condition of the pancreas, potentially escalating to severe systemic inflammation, rampant pancreatic necrosis, and multi-organ failure. Its complex pathogenesis involves an intricate immune ... ...

    Abstract Acute pancreatitis (AP) is an abrupt, variable inflammatory condition of the pancreas, potentially escalating to severe systemic inflammation, rampant pancreatic necrosis, and multi-organ failure. Its complex pathogenesis involves an intricate immune response, with different T cell subsets (Th1, Th2, Th9, Th17, Th22, TFH, Treg, and CD8
    MeSH term(s) Humans ; Pancreatitis ; CD8-Positive T-Lymphocytes ; Acute Disease ; Cytokines/genetics ; Adaptive Immunity
    Chemical Substances Cytokines
    Language English
    Publishing date 2023-05-29
    Publishing country Switzerland
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 2661518-6
    ISSN 2073-4409 ; 2073-4409
    ISSN (online) 2073-4409
    ISSN 2073-4409
    DOI 10.3390/cells12111495
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  8. Article ; Online: Late presentation of subtotal C6 deficiency in a patient with recurrent Neisseria meningitides infections.

    Rosenfield, Lana / Cvetkovic, Anna / Woodward, Kevin / Quirt, Jaclyn

    Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology

    2018  Volume 120, Issue 4, Page(s) 432–433

    MeSH term(s) Complement C6/deficiency ; Disease Susceptibility/diagnosis ; Female ; Gram-Negative Bacterial Infections/diagnosis ; Humans ; Meningitis/diagnosis ; Middle Aged ; Neisseria ; Recurrence
    Chemical Substances Complement C6
    Language English
    Publishing date 2018-04-03
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 1228189-x
    ISSN 1534-4436 ; 0003-4738 ; 1081-1206
    ISSN (online) 1534-4436
    ISSN 0003-4738 ; 1081-1206
    DOI 10.1016/j.anai.2018.01.014
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    In stock of ZB MED Cologne/Königswinter

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  9. Article ; Online: Relationship between incidence of chronic obstructive pulmonary disease and lung cancer as comorbidity in primary health care in two Belgrade communities.

    Vasiljevic, Sladjana / Petrovic, Marina / Cvetkovic, Aleksandra / Mikic, Darko / Paunovic, Vesna

    Journal of B.U.ON. : official journal of the Balkan Union of Oncology

    2019  Volume 24, Issue 3, Page(s) 963–966

    Abstract: Purpose: To investigate the recent trends in the incidence of chronic obstructive pulmonary disease (COPD) and lung cancer as comorbidity in primary health care (Community Health Center, Zemun, Belgrade, which covers two municipalities - Surchin and ... ...

    Abstract Purpose: To investigate the recent trends in the incidence of chronic obstructive pulmonary disease (COPD) and lung cancer as comorbidity in primary health care (Community Health Center, Zemun, Belgrade, which covers two municipalities - Surchin and Zemun), during the period 2014-2017.
    Methods: This retrospective study analyzed the incidence of COPD and lung cancer as comorbidity in a 4-year period. Data were derived from the Heliant information system. Descriptive statistics -frequencies and percentages - were used, and differences between groups were tested by x2 test.
    Results: The number of patients with COPD was slightly, but insignificantly, higher each consecutive year. Lung cancer as comorbidity appeared in about 11% of these patients. As for gender, male and female patients contributed equally to the number of patients with CORD.
    Conclusion: The number of patients with COPD registered in primary health care was similar in all investigated years. Lung cancer as comorbidity was found in a significantly smaller number of these patients.
    MeSH term(s) Comorbidity ; Female ; Humans ; Incidence ; Lung Neoplasms/epidemiology ; Male ; Primary Health Care ; Pulmonary Disease, Chronic Obstructive/epidemiology ; Serbia/epidemiology
    Language English
    Publishing date 2019-08-17
    Publishing country Greece
    Document type Journal Article
    ZDB-ID 2040386-0
    ISSN 2241-6293 ; 1107-0625
    ISSN (online) 2241-6293
    ISSN 1107-0625
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  10. Article ; Online: Exploring Perforated Jejunal GIST: A Rare Case Report and Review of Molecular and Clinical Literature.

    Mirovic, Milos / Stojanovic, Milica Dimitrijevic / Jovanovic, Marina / Stankovic, Vesna / Milosev, Danijela / Zdravkovic, Natasa / Milosevic, Bojan / Cvetkovic, Aleksandar / Spasic, Marko / Vekic, Berislav / Jovanovic, Ivan / Stojanovic, Bojana S / Petrovic, Marko / Bogut, Ana / Peulic, Miodrag / Stojanovic, Bojan

    Current issues in molecular biology

    2024  Volume 46, Issue 2, Page(s) 1192–1207

    Abstract: This case report details a rare instance of a perforated jejunal gastrointestinal stromal tumor (GIST) in a 76-year-old female patient. The patient presented with acute abdominal pain and distension without any changes in bowel habits or episodes of ... ...

    Abstract This case report details a rare instance of a perforated jejunal gastrointestinal stromal tumor (GIST) in a 76-year-old female patient. The patient presented with acute abdominal pain and distension without any changes in bowel habits or episodes of nausea and vomiting. Initial diagnostics, including abdominal plain radiography and ultrasonography, were inconclusive; however, a computed tomography (CT) scan revealed pneumoperitoneum and an irregular fluid collection suggestive of small intestine perforations. Surgical intervention uncovered a 35 mm jejunal GIST with a 10 mm perforation. Histopathological examination confirmed a mixed cell type GIST with high malignancy potential, further substantiated by immunohistochemistry markers CD117, DOG1, and vimentin. Molecular analysis illuminated the role of key oncogenes, primarily KIT and PDGFRA mutations, emphasizing the importance of molecular diagnostics in GIST management. Despite the severity of the presentation, the patient's postoperative recovery was favorable, highlighting the effectiveness of prompt surgical and multidisciplinary approaches in managing complex GIST cases.
    Language English
    Publishing date 2024-02-01
    Publishing country Switzerland
    Document type Case Reports
    ZDB-ID 2000024-8
    ISSN 1467-3045 ; 1467-3037
    ISSN (online) 1467-3045
    ISSN 1467-3037
    DOI 10.3390/cimb46020076
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