Density of vectors and development of resistance against insecticides are two important aspects in the control of vector-borne diseases. Here, effect of temperature on different aspects of development of malathion-resistant and susceptible strains of Culex quinquefasciatus was evaluated in the laboratory. Fourth-instar larvae of C. quinquefasciatus were exposed to 37 degrees C, 39 degrees C, 40 degrees C, and 41 degrees C, and their LT(50) values calculated. The fourth-instar larvae were subjected to heat for 4 h at 39 degrees C and live larvae were reared until the completion of life cycle. The larvae of malathion-resistant strain were more tolerant to heat than the larvae of malathion-susceptible ones. The difference in mortality between 37 degrees C, 39 degrees C, 40 degrees C, and 41 degrees C of both the strains of C. quinquefasciatus were highly significant. Pupation percentage of heat-exposed larvae of both the strains was higher and delayed than the control ones. The percentage of adult emergence from the heat-exposed larvae was significantly lower than the control. The adult female of malathion-resistant strain showed increased longevity when exposed to heat at larval stage but reverse was true in case of malathion-susceptible. The highlights of the study would help in the management of resistance of mosquito vectors in the tropics where variable climatic condition is observed.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00436-008-0969-5 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Identification of Intracranial Germ Cell Tumors Based on Facial Photos: Exploratory Study on the Use of Deep Learning for Software Development.
J Med Internet Res
January 2025
Department of Radiation Oncology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Background: Primary intracranial germ cell tumors (iGCTs) are highly malignant brain tumors that predominantly occur in children and adolescents, with an incidence rate ranking third among primary brain tumors in East Asia (8%-15%). Due to their insidious onset and impact on critical functional areas of the brain, these tumors often result in irreversible abnormalities in growth and development, as well as cognitive and motor impairments in affected children. Therefore, early diagnosis through advanced screening techniques is vital for improving patient outcomes and quality of life.
View Article and Find Full Text PDFT-Bar Angular Offset: A Novel Angle for Predicting Postoperative Coronal Balance Using Intraoperative Stitched Radiographs.
Oper Neurosurg (Hagerstown)
November 2024
Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA.
Background And Objectives: Accurate intraoperative assessment of coronal alignment is critical to achieving favorable clinical outcomes in adult spinal deformity surgery. However, surgical positioning creates challenges in predicting standing coronal alignment. Gravity-based plumblines require an upright posture and are not possible intraoperatively.
View Article and Find Full Text PDFReview of Endosaccular Flow Disrupters for Wide-Neck Aneurysm Treatment.
Cardiol Rev
January 2025
From the Department of Neurological Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY.
Endosaccular flow disruption has emerged as a transformative approach for treating wide-neck intracranial aneurysms, which are characterized by neck diameters exceeding 4 millimeters or dome-to-neck ratios below 2. This review examines the technical specifications and clinical outcomes of major endosaccular devices, including the Woven EndoBridge (WEB) device, the Artisse embolization device, the Medina embolization device, the neck bridging device for bifurcation aneurysms, the polycarbonate urethane membrane-assisted device, the Galaxy saccular endovascular aneurysm lattice, and the Contour Neurovascular System. Analysis of pivotal trials reveals varying degrees of efficacy and safety across platforms.
View Article and Find Full Text PDFConstruction on training course and training quality evaluation index system of chronic disease medication therapy management service (MTMs) in China: A Delphi study.
PLoS One
January 2025
Department of Pharmacy, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China.
Objective: This study aims to construct a training course and quality evaluation index system for chronic disease Medication Therapy Management service (MTMs) that is suitable for China's national conditions. It seeks to provide tools and a scientific foundation for assessing the quality of MTMs training.
Methods: Drawing from domestic and international literature and combining with the practice of chronic disease medication management by Chinese pharmacists, a preliminary framework for the evaluation index system was established.
Hearing in categories and speech perception at the "cocktail party".
PLoS One
January 2025
School of Communication Sciences & Disorders, University of Memphis, Memphis, Tennessee, United States of America.
We aimed to test whether hearing speech in phonetic categories (as opposed to a continuous/gradient fashion) affords benefits to "cocktail party" speech perception. We measured speech perception performance (recognition, localization, and source monitoring) in a simulated 3D cocktail party environment. We manipulated task difficulty by varying the number of additional maskers presented at other spatial locations in the horizontal soundfield (1-4 talkers) and via forward vs.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!