scholarly journals Post-epidemic Occurrence of Bluetongue Virus Vectors (Culicoides Species) în Iași County

Author(s):  
Dragoș Constantin ANIȚĂ ◽  
Ioana Mădălina POPESCU ◽  
Ștefania ANDERCO ◽  
Luanda Elena OȘLOBANU ◽  
Adriana ANIȚĂ ◽  
...  

Culicoides is a genus of biting midges in the family Ceratopogonidae, representing a big threat, giving that several species serve as biological vectors of pathogens of veterinary importance. BTV distribution and persistence is thought to be almost entirely dependent upon the presence or absence of Culicoides adults vector. In this study, biting midges were collected during 2015-2016, once a week, from April to December. In the first year, 2617 BTV vector specimens were collected and identified as Culicoides obsoletus (41.2%; 95% CI: 39-43), Culicoides pulicaris (58%; 95% CI: 56-59) and Culicoides nubeculosus (0.8%; 95% CI: 0.4-1.1). In the second year, 165 BTV vector specimens were collected and identified as Culicoides obsoletus (44.25%; 95% CI: 36-51), Culicoides pulicaris (50.3%; 95% CI: 42-57), Culicoides dewulfi (4.84%; 95% CI: 1.5-8.1) and Culicoides nubeculosus (0.61%; 95% CI: 0.5-1.7). Culicoides pulicaris and Culicoides obsoletus complex were especially abundant within the two collection sites in Iași County. Our data on post-epidemic occurrence and composition of BTV vector species in the studied area will facilitate a better understanding of Culicoides vectors distribution and the possible role in bluetongue virus overwintering.

Animals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 203
Author(s):  
María Gemma Millán de la Blanca ◽  
Eva Martínez-Nevado ◽  
Cristina Castaño ◽  
Juncal García ◽  
Berenice Bernal ◽  
...  

The American flamingo is a useful model for the development of successful semen cryopreservation procedures to be applied to threatened related species from the family Phoenicopteridae, and to permit genetic material banking. Current study sought to develop effective sperm cryopreservation protocols through examining the influences of two permeating cryoprotectants and the seminal plasma removal. During two consecutive years (April), semen samples were collected and frozen from American flamingos. In the first year, the effect of two permeating cryoprotectants, DMA (dimethylacetamide) (6%) or Me2SO (dimethylsulphoxide) (8%), on frozen–thawed sperm variables were compared in 21 males. No differences were seen between DMA and Me2SO for sperm motility, sperm viability, and DNA fragmentation after thawing. In the second year, the role of seminal plasma on sperm cryoresistance was investigated in 31 flamingos. Sperm samples were cryopreserved with and without seminal plasma, using Me2SO (8%) as a cryoprotectant. The results showed that samples with seminal plasma had higher values than samples without seminal plasma for the following sperm variables: Straight line velocity (22.40 µm/s vs. 16.64 µm/s), wobble (75.83% vs. 69.40%), (p < 0.05), linearity (62.73% vs. 52.01%) and straightness (82.38% vs. 73.79%) (p < 0.01); but acrosome integrity was lower (55.56% vs. 66.88%) (p < 0.05). The cryoresistance ratio (CR) was greater in samples frozen with seminal plasma than without seminal plasma for CR-progressive motility (138.72 vs. 54.59), CR-curvilinear velocity (105.98 vs. 89.32), CR-straight line velocity (152.77 vs. 112.58), CR-average path velocity (122.48 vs. 98.12), CR-wobble (111.75 vs. 102.04) (p < 0.05), CR-linearity (139.41 vs. 113.18), and CR-straightness (124.02 vs. 109.97) (p < 0.01). This research demonstrated that there were not differences between Me2SO and DMA to successful freezing sperm of flamingos; seminal plasma removal did not provide a benefit for sperm cryopreservation.


2019 ◽  
Vol 184 (20) ◽  
pp. 621-621 ◽  
Author(s):  
Cipriano Foxi ◽  
Giorgio Meloni ◽  
Giantonella Puggioni ◽  
Daniela Manunta ◽  
Angelamaria Rocchigiani ◽  
...  

Bluetongue is an infectious disease transmitted by Culicoides biting midges. Culicoides imicola is considered the main vector in the Mediterranean basin but other species have been implicated in the Bluetongue virus (BTV) transmission. During 2017, BTV serotype 4 re-occurred in Sardinia causing outbreaks in sheep farms. A survey was carried out on affected farms with the aim to detect the virus in field-collected Culicoides. Biting midges were morphologically identified, pooled and then assayed with a real time RT-PCR. To evaluate BTV dissemination, some Culicoides were dissected and head, thorax and abdomen were tested singly by PCR. A total of 173,738 Culicoides adults were collected. Viral RNA was detected in 68 out of 77 pools and all species analysed resulted positive. Detection of BTV in parous female body regions (head, thorax and abdomen) confirmed the full dissemination of BTV in all species analysed. During this study, the vector competence of C imicola, C newsteadi s.l. and Obsoletus complex was confirmed. The authors found two new Culicoides species BTV positive, C paolae never associated with BTV transmission and C circumscriptus only recently found BTV positive in Turkey, which could be considered potential vectors.


Parasitology ◽  
2013 ◽  
Vol 141 (4) ◽  
pp. 542-546 ◽  
Author(s):  
R. DEL RÍO ◽  
R. VENAIL ◽  
C. CALVETE ◽  
C. BARCELÓ ◽  
T. BALDET ◽  
...  

SUMMARYBluetongue is a disease of major economic concern in Europe. Its causative agent, bluetongue virus (BTV), is transmitted by several Culicoides species (mainly Culicoides imicola and Culicoides obsoletus in Europe). The application of insecticides on animals may reduce transmission of BTV, however, no formulation is currently licensed specifically against Culicoides midges. The present study assesses the susceptibility of C. obsoletus to deltamethrin using an adapted World Health Organization (WHO) susceptibility test. Midges were exposed to different dosages of deltamethrin for 1 h, and mortality after 1 h and 24 h was recorded. Results indicated that deltamethrin is highly toxic to C. obsoletus since a dose of 1·33×10−4% was enough to kill 50% of the population (LD50) in 24 h. The deltamethrin concentration needed to kill 90% of the population (LD90) was 5·55×10−4%. The results obtained in the present work could help to create a system that can be used to assess insecticide resistance and susceptibility of Culicoides biting midges.


Author(s):  
Ni Ketut Sari Adnyani

Abstrak Secara umum penelitian ini bertujuan untuk mengembangkan model hukum perkawinan berorientasi gender berbasis desa adat Hindu Bali. Penelitian ini akan dilakukan selama 3 tahun, yaitu dari tahun 2015 sampai dengan tahun 2016. Luaran penelitian selama tiga tahun dapat dijabarkan sebagai berikut: (1) luaran tahun I (2015) terdiri adalah artikel ilmiah di jurnal terakreditasi, dan draft buku ajar hukum waris pengaruh dari perkawinan berorientasi gender berbasis desa adat Hindu Bali. (2) luaran tahun II (2016) terdiri adalah artikel ilmiah di jurnal nasional terakreditasi, dan buku ajar terkait dengan hukum waris pengaruh dari perkawinan berorientasi gender berbasis desa adat Hindu Bali, dan artikel ilmiah di jurnal internasional. Hasil penelitian bentuk perkawinan matriarki di beberapa daerah di provinsi Bali seperti Buleleng, Tabanan, Gianyar, telah dijumpai penerapannya dalam masyarakat, sedangkan, di beberapa daerah lain seperti Jembrana, Klungkung, dan Bangli masih menolak bentuk perkawinan nyentana (nyeburin) yang secara proses menyerupai perkawinan matriarki, namun menurut esensinya status putrika pada anak perempuan yang menjadi sentana rajeg sudah didaulat berdasarkan pauman krama sebagai purusa (status laki-laki) penerus keturunan keluarga. Beberapa daerah lain seperti Karangasem, dan Kodya Denpasar, di satu sisi pada umumnya masyarakat menganut bentuk perkawinan patriarki, tapi dalam prakteknya tidak dapat dipungkiri ada beberapa desa seperti Tianyar, dan Abang di wilayah kabupaten Karangasem yang dijumpai telah melaksanakan bentuk perkawinan matriarki. Dikaitkan dengan pewarisan, pengaruh bentuk perkawinan matriarki terhadap anak perempuan yang semula bukan sebagai ahli waris dapat menjadi ahli waris terhadap harta orang tuanya. Implikasinya putrika mempunyai kewenangan yang sama dengan laki-laki untuk mewarisi harta kekayaan dan sanggah (tempat suci keluarga) sebagaimana layaknya laki-laki. Model rekonstruksi kebijakan perkawinan yang direkomendasikan oleh peneliti menjawab permasalahan di lapangan adalah penerapan model formulasi kebijakan perkawinan parental (Pada Gelahang). Kata Kunci: perkawinan, matriarki, gender. Abstract In general, this study aims to develop a model of marriage laws gender-oriented village-based traditional Hindu Bali. This study will be conducted over three years, from 2015 until 2016. The output of the study for three years can be described as follows: (1) outputs the first year (2015) is composed of scientific articles in accredited journals and textbooks draft law of inheritance the influence of gender-oriented marriage of traditional village-based Hindu Bali. (2) The outcome of the second year (2016) is composed of scientific articles in accredited national journals, and textbooks related to inheritance laws the influence of gender-oriented marital village-based traditional Balinese Hindu and scientific articles in international journals. The results of the study form of marriage matriarki in some areas in the province of Bali as Buleleng, Tabanan, Gianyar, has found its application in society, whereas, in some other areas such as Jembrana, Klungkung and Bangli still refuse forms of marriage nyentana (nyeburin) which process resembles marriage matriarki, but according to its essence putrika status in young women who become Rajeg cemetery has been asked by pauman manners as purusa (status male) successor to the family lineage. Several other areas such as Karangasem, and Denpasar municipality, on the one hand to the general public embrace patriarchal forms of marriage, but in practice there is no doubt there are some villages like Tianyar, and brother in the district of Karangasem who are found to carry out the marriage form matriarki. Associated with inheritance, marriage forms matriarki effect against girls which was originally not as heirs may be heir to the wealth of their parents. , The implication putrika have the same authority as men to inherit wealth and corrected (sanctum family) as befits a man. Model reconstruction marriage policy recommended by researchers to answer the problem in the field is the application of the model policy formulation parental marriage (In Gelahang). Keywords: marriage, matriarki, gender.


Author(s):  
A.D. Hyatt

Bluetongue virus (BTV) is the type species os the genus orbivirus in the family Reoviridae. The virus has a fibrillar outer coat containing two major structural proteins VP2 and VP5 which surround an icosahedral core. The core contains two major proteins VP3 and VP7 and three minor proteins VP1, VP4 and VP6. Recent evidence has indicated that the core comprises a neucleoprotein center which is surrounded by two protein layers; VP7, a major constituent of capsomeres comprises the outer and VP3 the inner layer of the core . Antibodies to VP7 are currently used in enzyme-linked immunosorbant assays and immuno-electron microscopical (JEM) tests for the detection of BTV. The tests involve the antibody recognition of VP7 on virus particles. In an attempt to understand how complete viruses can interact with antibodies to VP7 various antibody types and methodologies were utilized to determine the physical accessibility of the core to the external environment.


2020 ◽  
Vol 5 (1) ◽  
pp. 74-89
Author(s):  
Hugh Crago

In a seminal 1973 paper, Robert Clark described the very different “cultures” of the first and second year students in a four year clinical psychology PhD programme. The author applies Clark’s template to his own experiences as trainee or trainer in five different counsellor education programmes, one in the US and four in Australia. Each of the programmes, to varying degrees, demonstrates key features of the pattern identified by Clark, where the first year is “therapeutic” and other-oriented, the second is “professional” and self-focused. The author concludes that all the surveyed programmes exhibited some level of “second year crisis”, in which a significant number of students felt abandoned, dissatisfied, or rebellious. The author extends and refines Clark’s developmental analogy (first year = childhood; second year = adolescence) to reflect recent neurological research, in particular, the shift from a right hemisphere-dominant first year of life, prioritising affiliative needs, to a left hemisphere-dominant second year, prioritising autonomy and control. This shift is paralleled later by a more gradual move from a protective, supportive childhood to necessary, but sometimes conflictual, individuation in adolescence. The first two years of a counsellor training programme broadly echo this process, a process exacerbated by the second year internship/placement, in which students must “leave home” and adjust to unfamiliar, potentially less nurturing, authority figures. Finally, the author suggests introducing more rigorous “academic holding” into the first year, and greater attention to “therapeutic holding” of dissident students in the second, hopefully decreasing student dropout, and achieving a better balanced training experience.


Author(s):  
Umar Iqbal ◽  
Deena Salem ◽  
David Strong

The objective of this paper is to document the experience of developing and implementing a second-year course in an engineering professional spine that was developed in a first-tier research university and relies on project-based core courses. The main objective of this spine is to develop the students’ cognitive and employability skills that will allow them to stand out from the crowd of other engineering graduates.The spine was developed and delivered for the first time in the academic year 2010-2011 for first-year general engineering students. In the year 2011-2012, those students joined different programs, and accordingly the second-year course was tailored to align with the different programs’ learning outcomes. This paper discusses the development and implementation of the course in the Electrical and Computer Engineering (ECE) department.


2020 ◽  
Author(s):  
Jennifer McDonald ◽  
Rebecca Merkley ◽  
Jacqueline Mickle ◽  
Lisa Collimore ◽  
Daniel Ansari

Research in cognitive development has highlighted that early numeracy skills are associated with later math achievement, suggesting that these skills should be targeted in early math education. Here we tested whether tools used by researchers to assess mathematical thinking could be useful in the classroom. This paper describes a collaborative project between cognitive scientists and school board researchers/educators implementing numeracy screeners with kindergarten students over the course of three school years. The Give-A-Number task (Wynn, 1990) was used with first-year kindergarten students and the Numeracy Screener [BLINDED] with second-year kindergarten students. Results indicated that educators (N = 59) found the tools feasible to implement and helpful for exploring their students’ thinking and targeting instruction. The Educators’ feedback also helped inform improvements to the implementation of the tools and future directions for both the schools and the researchers. This work emphasizes the importance of transdisciplinary collaboration to address the research-practice gap.


2016 ◽  
Vol 3 (3) ◽  
Author(s):  
ARVIND KUMAR ◽  
POOJA KHULBE

Influence of abiotic factors and hosts on population dynamics of green lacewing, Chrysoper lacarnea (Stephens) was studied in sunflower, Helianthus annus (Linn.).The maximum number of C. carnea population was found during mid March –mid April in the first year and mid April – mid May in the second year in sunflower crop. The maximum number of host population viz. egg and larva of Helicoverpa armigera and Myzuspe rsicae population were found during mid March –mid April in both the year and correlation studies revealed the positive and significant correlation between larval population of H. armigera, M. persicae and predator C. carnea. While there was no significant relationship found between eggs of H. armigera and C. carnea. The C. carnea population on H. annus during both the year was positively correlated with maximum temperature and found significant,while negatively correlated with relative humidity.However, no significant correlation of C. carnea was found with minimum temperature in both the year.


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