scholarly journals VISUALISASI SEBARAN SPESIES NYAMUK TERTANGKAP DI ENAM EKOSISTEM DI KABUPATEN KOTABARU PROVINSI KALIMANTAN SELATAN TAHUN 2016 MENGGUNAKAN METODE BIPLOT

2018 ◽  
Vol 21 (3) ◽  
pp. 188-198 ◽  
Author(s):  
Revi Rosavika Kinansi ◽  
Zainul Khaqiqi Nantabah ◽  
Herti Maryani
Keyword(s):  
Carrying Capacity ◽  
Dominant Species ◽  
Mosquito Species ◽  
Singular Value ◽  
Mosquito Vectors ◽  
Multivariate Method ◽  
Visual Illustration ◽  
Eigen Value ◽  
Vector Mosquito ◽  
Diversity Transmission

Various types of flora and fauna are able to grow well because Indonesia has excellent environmental carrying capacity for the growth of its diversity. Transmission of vector infectious diseases is influenced by many factors, one of which is the topography of the region closely related to the pattern of transmission. One type of fauna that develops well is insects (insecta). To be achieved in writing this article is to obtain a mapping of the most dominant species of mosquito-causing diseases in six ecosystems in Kotabaru, South Kalimantan ie. Near Forest Settlement ecosystems, Remote Forest Settlements, Non Forest Near Settlements, Non Forest Remote Settlement, Near Beach Settlements and Beaches Deep Residential. The analysis used is biplot multivariate method using singular value and eigen value so that obtained visualization picture of data which have many object and variable. Biplot graphs provide a more practical visual illustration so that it can practically determine the proximity picture between the ecosystems of each other that have similar characteristics of mosquito species. This effort is useful for preventing the spread of certain species mosquito vectors, so that it can be utilized by the policy manager for the vector mosquito elimination program. ABSTRAK Berbagai jenis flora dan fauna mampu tumbuh dengan baik karena Indonesia mempunyai daya dukung lingkungan yang sangat baik untuk pertumbuhan keanekaragamannya. Penularan penyakit tular vektor dipengaruhi oleh banyak faktor, salah satunya adalah topografi wilayah yang erat hubungan dengan pola penularan. Salah satu jenis fauna yang berkembang dengan baik adalah serangga (insecta). Tujuan yang ingin dicapai pada penulisan artikel ini adalah memperoleh pemetaan mengenai sebaran spesies nyamuk penyebab penyakit yang paling dominan di 6 ekosistem di Kabupaten Kotabaru, Provinsi Kalimantan Selatan yaitu ekosistem Hutan Dekat Pemukiman, Hutan Jauh Pemukiman, Non Hutan Dekat Pemukiman, Non Hutan Jauh Pemukiman, Pantai Dekat Pemukiman dan Pantai Jauh Pemukiman. Analisis yang digunakan adalah metode multivariat biplot menggunakan nilai singular dan nilai eigen sehingga diperoleh gambaran visualisasi data yang memiliki banyak obyek dan variabel. Grafik Biplot memberikan gambaran visualisasi yang lebih praktis sehingga dapat dengan mudah menentukan gambaran kedekatan antara ekosistem satu sama lain yang memiliki karakteristik spesies nyamuk yang hampir sama. Upaya ini bermanfaat untuk pencegahan penyebaran vektor nyamuk spesies tertentu, sehingga dapat dimanfaatkan oleh pengelola kebijakan untuk program eliminasi nyamuk vektor penyakit.

scholarly journals Behavioural response of mosquito vectors Aedes aegypti, Anopheles stephensi and Culex quinquefasciatus to synthetic pyrethroid and organophosphorus-based slow-release insecticidal paint

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Sunil Dhiman ◽  
Kavita Yadav ◽  
B. N. Acharya ◽  
Raj Kumar Ahirwar ◽  
D. Sukumaran
Keyword(s):  
Aedes Aegypti ◽  
Culex Quinquefasciatus ◽  
Anopheles Stephensi ◽  
Slow Release ◽  
Disease Risk ◽  
Mosquito Species ◽  
Escape Time ◽  
Behavioural Avoidance ◽  
Vector Mosquito ◽  
Contact Exposure

Abstract Background The direct toxicological impact of insecticides on vector mosquitoes has been well emphasized; however, behavioural responses such as excito-repellency and physical avoidance as a result of insecticide exposure have not been much studied. We have demonstrated the excito-repellency and behavioural avoidance in certain vector mosquito species on exposure to a slow-release insecticidal paint (SRIP) formulation in addition to direct toxicity. Methods A SRIP formulation developed by the Defence Research and Development Establishment, Gwalior, contains chlorpyriphos, deltamethrin and pyriproxyfen as active insecticides. Anopheles stephensi, Culex quinquefasciatus and Aedes aegypti mosquitoes were used to study the excito-repellency response of the formulation. The experiments were performed in a specially designed dual-choice exposure and escape chamber made of transparent polymethyl methacrylate. For the experiments, the SRIP formulation was applied undiluted at a rate of 8 m2 per kg on 15 cm2 metallic surfaces. Mosquitoes were introduced into the exposure chamber, and observations of the movement of mosquitoes into the escape chamber through the exit portal were taken at 1-min intervals for up to 30 min. Results The evaluated formulation displayed strong excito-repellency against all three tested vector mosquito species. Results showed that the ET50 (escape time 50%) for Ae. aegypti, An. stephensi and Cx. quinquefasciatus was 20.9 min, 14.5 min and 17.9 min for contact exposure (CE) respectively. Altogether in CE, the escape rates were stronger in An. stephensi mosquitoes at different time intervals compared to Ae. aegypti and Cx. quinquefasciatus mosquitoes. The probit analysis revealed that the determined ET did not deviate from linearity for both non-contact exposure (NCE) and placebo exposure (PE) (χ2 ≤ 7.9; p = 1.0) for Ae. aegypti mosquitoes and for NCE (χ2 = 8.3; p = 1.0) and PE (χ2 = 1.7; p = 1.0) treatments in Cx. quinquefasciatus. Mortality (24 h) was found to be statistically higher (F = 6.4; p = 0.02) in An. stephensi for CE but did not vary for NCE (p ≥ 0.3) and PE (p = 0.6) treatments among the tested mosquito species. Survival probability response suggested that all the three tested species displayed similar survival responses for similar exposures (χ2 ≤ 2.3; p ≥ 0.1). Conclusion The study demonstrates the toxicity and strong behavioural avoidance in known vector mosquito species on exposure to an insecticide-based paint formulation. The combination of insecticides in the present formulation will broaden the overall impact spectrum for protecting users from mosquito bites. The efficacy data generated in the study provide crucial information on the effectiveness of the tested formulation and could be useful in reducing the transmission intensity and disease risk in endemic countries.

Static Analysis for a Novel 6-(P-2P-S) Parallel Robot

2009 ◽  
Vol 69-70 ◽  
pp. 580-584 ◽  
Author(s):  
D.F. Zhang ◽  
Feng Gao
Keyword(s):  
Carrying Capacity ◽  
Simple Structure ◽  
Jacobian Matrix ◽  
Parallel Robot ◽  
Singular Value ◽  
Force Transmission ◽  
Practical Application ◽  
Positioning Device ◽  
Orientation Parameters ◽  
Orientation Workspace

A novel 6-(P-2P-S) parallel robot is put forward. With the characters of some movement decoupling on the orthogonal pose, the robot can be used as the macro manipulator of the macro/micro dual driven robots. The macro manipulator as a high-precision positioning device, it is significant for the practical application and drive train design to research statics. First, the force Jacobian matrix is deduced, which is related to the orientation parameters. Then based on the Jacobian matrix singular value decomposed characteristic, the static force transmission evaluation indicators Kf and Km are defined. Finally, considering structure constraints and parameters, the distribution of evaluation indicators in the orientation workspace is drawn, which provide the theoretical base for the design and applications of the robot. Because of the characters of simple structure, high carrying capacity, less motion inertia, good manufacturability, the 6-(P-2P-S) parallel macro manipulator has been designed.

scholarly journals Difference in the larval susceptibility to pyriproxyfen in nine colonies of six vector mosquito species

2003 ◽  
Vol 54 (2) ◽  
pp. 155-160 ◽  
Author(s):  
Tomomitsu SATHO ◽  
Yoshio TSUDA ◽  
Pradya SOMBOON ◽  
Hitoshi KAWADA ◽  
Masahiro TAKAGI
Keyword(s):  
Mosquito Species ◽  
Vector Mosquito ◽  
Larval Susceptibility

Classification of Wild Vector Mosquito Species using Convolutional Neural Networks

2021 ◽  
Vol 27 (11) ◽  
pp. 503-509
Author(s):  
Junyoung Park ◽  
Dong In Kim ◽  
Hyung Wook Kwon ◽  
Woochul Kang
Keyword(s):  
Neural Networks ◽  
Convolutional Neural Networks ◽  
Mosquito Species ◽  
Vector Mosquito

scholarly journals Meta-Transcriptomic Comparison of the RNA Viromes of the Mosquito Vectors Culex pipiens and Culex torrentium in Northern Europe

Viruses ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 1033 ◽  
Author(s):  
Pettersson ◽  
Shi ◽  
Eden ◽  
Holmes ◽  
Hesson
Keyword(s):  
Culex Pipiens ◽  
Evolutionary History ◽  
Rna Viruses ◽  
Mosquito Species ◽  
Animal Health ◽  
Mosquito Vectors ◽  
South Central ◽  
Global Movement ◽  
History Of ◽  
Local Habitat

Mosquitoes harbor an extensive diversity of ‘insect-specific’ RNA viruses in addition to those important to human and animal health. However, because most studies of the mosquito virome have been conducted at lower latitudes, little is known about the diversity and evolutionary history of RNA viruses sampled from mosquitoes in northerly regions. Here, we compared the RNA virome of two common northern mosquito species, Culex pipiens and Culex torrentium, collected in south-central Sweden. Following bulk RNA-sequencing (meta-transcriptomics) of 12 libraries, comprising 120 specimens of Cx. pipiens and 150 specimens of Cx. torrentium, we identified 40 viruses (representing 14 virus families) of which 28 were novel based on phylogenetic analysis of the RNA-dependent RNA polymerase (RdRp) protein. Hence, we documented similar levels of virome diversity as in mosquitoes sampled from the more biodiverse lower latitudes. Many viruses were also related to those sampled on other continents, indicative of a widespread global movement and/or long host–virus co-evolution. Although the two mosquito species investigated have overlapping geographical distributions and share many viruses, several viruses were only found at a specific location at this scale of sampling, such that local habitat and geography may play an important role in shaping viral diversity in Culex mosquitoes.

scholarly journals A dataset of distribution and diversity of mosquito-associated viruses and their mosquito vectors in China

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Evans Atoni ◽  
Lu Zhao ◽  
Cheng Hu ◽  
Nanjie Ren ◽  
Xiaoyu Wang ◽  
...  
Keyword(s):  
Dengue Virus ◽  
Japanese Encephalitis Virus ◽  
Japanese Encephalitis ◽  
Mosquito Species ◽  
Encephalitis Virus ◽  
Health Concern ◽  
Mosquito Vector ◽  
Mosquito Vectors ◽  
Culex Flavivirus ◽  
Conference Papers

Abstract Mosquito-borne viruses such as Zika virus, Japanese Encephalitis virus and Dengue virus present an increasing global health concern. However, in-depth knowledge of the distribution and diversity of mosquito-associated viruses and their related vectors remains limited, especially for China. To promote their understanding, we present the first comprehensive dataset of the distribution and diversity of these viruses and their related vectors in China (including Taiwan, Hong Kong and Macau). Data was drawn from peer-reviewed journal articles, conference papers and thesis publications in both English and Chinese. Geographical data on mosquito-associated viruses’ occurrence and related mosquito vector species was extracted, and quality-control processes employed. This dataset contains 2,428 accounts of mosquito-associated viruses’ and mosquito species geo-referenced occurrences at various administrative levels in China. The prevalent mosquito-associated virus includes Japanese encephalitis virus, Dengue virus, Banna virus and Culex flavivirus, whereas the abundant mosquito vectors are Culex tritaeryohynchus, Aedes albopictus and Culex pipiens pallens. This geographical dataset delivers a distribution and diversity outline of mosquito-associated viruses in China, and also applicable in various spatial and risk-assessment analysis.

Satellite Fault Detection and Isolation through Decoupling Parity Space

2011 ◽  
Vol 110-116 ◽  
pp. 4406-4414
Author(s):  
Zheng Wang ◽  
Yan Jun Li ◽  
Xiao Wei Sun
Keyword(s):  
Singular Value Decomposition ◽  
Singular Value ◽  
Fault Detection And Isolation ◽  
Actuator Fault ◽  
Actuator Faults ◽  
Eigen Value ◽  
Parity Space ◽  
Simulation Results ◽  
Value Decomposition ◽  
Space Method

In order to detect and isolate orbiting satellite actuator faults, a decoupling parity space method was extended. The decoupling parity vector was obtained using this method by singular value decomposition. Sometimes this vector may not exist, then by singular value substitution or generalized Eigen value method was used for solving the optimal approximation. The vector can easily make satellite actuator fault detected and isolated. The simulation results showed the effectiveness of the proposed algorithm.

scholarly journals Anopheles gambiae and Anopheles arabiensis population densities and infectivity in Kopere village, Western Kenya

2012 ◽  
Vol 6 (08) ◽  
pp. 637-643 ◽  
Author(s):  
Andrew Ambogo Obala ◽  
Helen L Kutima ◽  
Henry D.N. Nyamogoba ◽  
Anne W Mwangi ◽  
Chrispinus J Simiyu ◽  
...  
Keyword(s):  
Anopheles Gambiae ◽  
Malaria Vector ◽  
Anopheles Arabiensis ◽  
Mosquito Species ◽  
Sensu Stricto ◽  
Malaria Vector Control ◽  
Insecticide Treated Nets ◽  
Western Kenya ◽  
Endemic Malaria ◽  
Vector Mosquito

Introduction: This study was conducted in a sugar belt region of western Kenya interfacing epidemic and endemic malaria transmission. We investigated Anopheles gambiae sensu stricto (ss) and Anopheles arabiensis species compositions and densities, human host choice, and infectivity. Methodology: Mosquitoes were captured using pyrethrum spray catch technique and first identified based on morphology; species were confirmed by PCR. Blood meal preference and sporozoite rates were determined by ELISA. Parity rates and entomological inoculation rates (EIR) were determined. Seasonal densities were compared against environmental temperatures, relative humidity and rainfall. Results: In total 2,426 An. gambiae were collected.  Out of 1,687 female blood-fed mosquitoes, 272 were randomly selected for entomological tests. An. gambiae ss and An. arabiensis comprised 75% (205/272) and 25% (68/272) of the selection, respectively. An. gambiae ss had higher preference for human blood (97%; n=263/272) compared with An. arabiensis, which mostly fed on bovines (88%; n=239/272).  The sporozoite and parity rates were 6% (16/272) and 66% (179/272) for An. gambiae ss and 2% (4/272) and 53% (144/272) for An. arabiensis respectively, while EIR was 0.78 infective bites/person/night.  Climate (ANOVA; F=14.2; DF=23) and temperature alone (r=0.626; t=3.75; p=0.001) were significantly correlated with vector densities. Conclusion: An. gambiae ss are the most efficient malaria vector mosquito species in Kopere village. Because An. gambiae ss largely rests and feeds indoors, use of indoor residual spray and insecticide-treated nets is likely the most suitable approach to malaria vector control in Kopere village and other parts of Kenya where this species is abundant. 

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