7 research outputs found
Stability Analysis of Biological Systems Under Threshold Conditions
No full textIn biological models exhibiting symmetric interactions within each compartmental group, threshold dynamics are typically governed by a key parameter known as the basic reproduction number R0. The stability of an equilibrium often hinges on whether R0 is greater than or less than one. However, general results for stability at the critical threshold—when R0 equals one—remain scarce. In this paper, we establish two theorems to analyze the stability of both trivial and boundary equilibria under this threshold condition. Our results provide explicit expressions for the threshold parameters in terms of partial derivatives of the nonlinear reaction function, making them readily applicable to a wide range of biological systems
SUPPLEMENTARY MATERIAL
No full textSUPPLEMENTARY MATERIALToDifferential scanning calorimetry as a tool to assess the oxidation state of cold-pressed oils during shelf-life Mahbuba Islama, Anna Kaczmareka, Jolanta Tomaszewska-Grasa*a Department of Food Safety and Quality Management, Poznań University of Life Sciences, ul. Wojska Polskiego 31/33, 60-637 Poznań, [email protected], ORCID: 0000-0003-1860-3718; [email protected], ORCID: 0000-0001-7888-0026*Corresponding author: e-mail: [email protected], ORCID: 0000-0003-3964-809
SUPPLEMENTARY MATERIAL
No full textSUPPLEMENTARY MATERIALToDifferential scanning calorimetry as a tool to assess the oxidation state of cold-pressed oils during shelf-life Mahbuba Islama, Anna Kaczmareka, Jolanta Tomaszewska-Grasa*a Department of Food Safety and Quality Management, Poznań University of Life Sciences, ul. Wojska Polskiego 31/33, 60-637 Poznań, [email protected], ORCID: 0000-0003-1860-3718; [email protected], ORCID: 0000-0001-7888-0026*Corresponding author: e-mail: [email protected], ORCID: 0000-0003-3964-8093THIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE HERE. TO VIEW A LIST OF FILES AND ACCESS THE FILES IN THIS DATASET CLICK ON THE DOI-LINK ABOV
SUPPLEMENTARY MATERIAL
No full textSUPPLEMENTARY MATERIALToDifferential scanning calorimetry as a tool to assess the oxidation state of cold-pressed oils during shelf-life Mahbuba Islama, Anna Kaczmareka, Jolanta Tomaszewska-Grasa*a Department of Food Safety and Quality Management, Poznań University of Life Sciences, ul. Wojska Polskiego 31/33, 60-637 Poznań, [email protected], ORCID: 0000-0003-1860-3718; [email protected], ORCID: 0000-0001-7888-0026*Corresponding author: e-mail: [email protected], ORCID: 0000-0003-3964-8093THIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE HERE. TO VIEW A LIST OF FILES AND ACCESS THE FILES IN THIS DATASET CLICK ON THE DOI-LINK ABOV
Co-authorship Network of Scientometrics Research Collaboration
No full textThis paper examines the co-authorship network in the field of scientometrics using social network analysis techniques with the aim of developing an understanding of research collaboration in this scientific community. Using co-authorship data from 3125 articles published in the journal Scientometrics with a time span of more than three decades (1980-2012), we construct an evolving co-authorship network and calculate three centrality measures (closeness, betweenness, and degree) for 3024 authors, 1207 institutions, 68 countries and 22 academic fields in this network. This paper also discusses the usability of centrality measures in author ranking, and suggests that centrality measures can be useful indicators for impact analysis. Findings revealed that scientometrics was not dominated by a couple of key researchers as quite a significant number of popular researchers were identified. The United States occupies the topmost position in all measures except for degree centrality. The most active, central and collaborative academic discipline in scientometrics is Information & Library Science
Postoperative wound infection by nontuberculous mycobacteria; case series in Dhaka Medical College Hospital of Bangladesh
No full textKey Clinical Message The incidence of nontuberculous mycobacterial (NTM) infections after operations is increasing in Bangladesh but data regarding clinical presentation, diagnosis, treatment, and prognosis after treatment are lacking. In this case series, three patients having persistent serous discharge from incision wound after operation were studied. Discharge from wounds were collected, wet film microscopy was performed for pus cells and fungus, Gram stain, Ziehl‐Neelsen (ZN) stain, culture in routine culture media and Lowenstein‐Jensen (LJ) media, Xene‐Xpert for mycobacterium tuberculosis (MTB), polymerase chain reaction (PCR) for NTM were done. NTM‐positive patients were treated initially for 6 weeks with four drugs regimen (clarithromycin 500 mg 12 hourly, ciprofloxacin 500 mg 12 hourly, linezolid 400 mg 12 hourly, and amikacin 500 mg 12 hourly), followed by 5 months with three drugs regimen (clarithromycin 500 mg 12 hourly, ciprofloxacin 500 mg 12 hourly, and linezolid 400 mg 12 hourly) as a maintenance dose. Cessation of discharge occurred within 3–4 weeks after starting treatment, and the wounds were healed
