1,299 research outputs found

    Behavioral and Climate Change on Fish Nematology

    Get PDF
    The impact of fish nematode on gill histopathologyl and damages are predominate in their filaments, primary lamellae, degeneration of epithelium, inter lamellar epithelium and clumping of RBCs. Results of present study on fish, Glossogobius giuris indicates that there was parasites in gill, Further studies are made to understand in terms of metacercariae in fish tissues like gill of naturally available and highly proteinaceous fish, in Cauvery delta region. Fish gills are continuously exposed to water for gaseous exchange, during this there was a possible contact of Trematode parasites. The major any favorable conditions to enhance the incidence of Trematoda parasites and water chemistry like pH, DO, BOD and COD along with the temperature have any role for abundance of fish parasites. Variations in temperature with 3-4°C are seems to be favorable for behavioral and climate change on fish nematology

    Evolutionary experimentation through hybridization under laboratory condition in Drosophila: Evidence for Recombinational Speciation

    Get PDF
    BACKGROUND: Drosophila nasuta nasuta (2n = 8) and Drosophila nasuta albomicans (2n = 6) are a pair of sibling allopatric chromosomal cross-fertile races of the nasuta subgroup of immigrans species group of Drosophila. Interracial hybridization between these two races has given rise to new karyotypic strains called Cytorace 1 and Cytorace 2 (first phase). Further hybridization between Thailand strain of D. n. albomicans and D. n. nasuta of Coorg strain has resulted in the evolution of two more Cytoraces, namely Cytorace 3 and Cytorace 4 (second phase). The third phase Cytoraces (Cytorace 5 to Cytorace 16) have evolved through interracial hybridization among first, second phase Cytoraces along with parental races. Each of these Cytoraces is composed of recombined genomes of the parental races. Here, we have made an attempt to systematically assess the impact of hybridization on karyotypes, morphometric and life history traits in all 16 Cytoraces. RESULTS: The results reveal that in most cases, the newly evolved Cytoraces, with different chromosome constitutions, exhibit decreased body size, better fitness and live longer than their parents. Particularly, Cytorace 5, 6 and 8 have evolved with very much higher range values of quantitative traits than the parents and other Cytoraces, which suggests the role of transgressive segregation in the evolution of these Cytoraces. CONCLUSION: Thus, the rapid divergence recorded in the chromosomes, karyotypes, body size and fitness traits of Cytoraces exhibit the early event of recombinational raciation / speciation in the evolution of the Cytoraces under laboratory conditions

    Efficacy of bipolar hemiarthroplasty in the elderly people: a study in a tertiary care centre

    Get PDF
    Background: Intertrochanteric fractures are associated with severe displacement and comminution are very common among the elderly patients especially women. Hemiarthroplasty is a procedure, where the head of the femur is replaced with a prosthetic implant. This study was performed to evaluate the efficacy of the bipolar hemiarthroplasty among the elderly patients with intra capsular fractures.Methods: Bipolar hemiarthroplasty with or without cement was performed on 77 patients above the age of 60 years with femoral neck fractures.Results: Out of the 77 patients, 79.2% were females and 20.8% were males. The mean age of all the patients was 68.4 years. Type IV was found to be most common among the elderly. The outcome of the surgery was excellent in more than 75% of the cases. Only one patient had a poor outcome. The most common complication of the surgery was limb shortening in 5.2% patients followed by superficial infections in 2.6%. Conclusions: Bipolar hemiarthroplasty for the unstable hip fractures in the elderly has good results with early mobilizations and minimal complications. This ultimately affects the general health of the patients and reduces morbidity and mortality

    Comparison of study of a dynamic condylar screw surgery and distal femoral locking compression plate technique in distal femoral fractures

    Get PDF
    Background: An extensive soft tissue damage, intra articular extension, severe comminution and injury to the quadriceps mechanism make the management of the distal fractures of the femur a significant challenge. The advent of techniques such as dynamic condylar screw surgery and distal femoral locking compression plate technique have improved the, management of these fractures compared to the conventional methods. We in the present study have attempted to compare the outcomes of Dynamic condylar screw surgery and distal femoral locking compression plate technique.Methods: 72 patients over the age of 20 years who sustained simple or compound factures of the lower 1/3rd of femur and admitted into our hospital were included into the study. The patients were divided into 2 groups, one group who underwent Dynamic condylar screw surgery and the other groups were managed by distal femoral locking compression plate technique.Results: The most common cause of fracture was road traffic accidents, involving both two wheelers as well as four wheelers (51.4%). 19.4% of the patients had a fall from height and 13.9% had a fall from standing height. The mean operative time in DCS was about 121 minutes in comparison to 118 minutes in the LCP. The average hospital stay and the no of RBCs used were comparable in both the cases. Although the mean number of days for full weight bearing as well as the average time of union of the fracture was marginally lower in LCP than in DCS, it was not significant. Conclusions: It is therefore observed that both condylar screw and the locking plate are very similar in their performance and satisfaction to the patients, although distal femoral locking plate is better in comminuted distal fracture compared to the dynamic condylar screw fracture management

    A study to assess epidemiological, clinical profile and outcome of Monteggia fracture dislocation in adults: a retrospective study

    Get PDF
    Background: Among all the forearm fractures Monteggia fractures account for approximately 1-2%. Early recognition with anatomical reduction and stable internal fixation is most important in the management of Monteggia fractures. This study was performed to evaluate clinical profile and functional outcome of Monteggia fracture dislocation.Methods: This retrospective study was done on 381 forearm fractures, out of which 31 were Monteggia fracture dislocation. All adults patients who were >20 years were included in the study.Results: During the study period, of 381 cases 31 (8.1%) were having Monteggia fracture dislocation. Most of the study participants were males in (61.2%) compared to females (39%). The cause of the fracture in most of the cases was road traffic accidents accounted by 45%. In most of the cases, the outcome of the operation was excellent (61.3%). Conclusions: If the injury is properly classified and if stable anatomical reduction is achieved at the proper time then the results will always be excellent. In present study all the patients achieved excellent results after surgery

    Treatment of open tibial shaft fractures using intra medullary interlocking

    Get PDF
    Background: It has been estimated that annual incidence of open fractures of long bones is 11.5 per 100 000 personswith 40% occurring in the lower limb and commonest site is the tibial diaphysis. This study was performed to evaluate clinical outcome of patients with open fracture of shaft of tibia.Methods: It was a hospital based observational prospective study was performed on a total of 30 study participants were enrolled and out of them 2 were lost to follow up. After discharge follow up was done every four weeks for clinical, radiological progress of bony union and soft tissue healing.Results: Majority of the study participants were in the age group of 31-40 years (37%). Males were the main study participant (63.3%). The process of healing took for about 13-16 weeks in 57.1% of the study participants were as in 18% of them it healed within 12 weeks. In 25% of the study participants the healing was completed in more than 16 weeks. Conclusions: It has been observed from the study that interlocked intramedullary nailing is a very effective and safe and technique for the management of open tibial fractures

    Occurrence of Medicinal Plant Pollen in \u3cem\u3eApis cerana\u3c/em\u3e Honeys of Khammam District, Andhra

    Get PDF
    A pollen analysis of 11 honey samples from Khammam district has been carried out. According to the pollen spectra found, most of them are unifloral (10); 1 sample multifloral. Thirty-two different pollen types were recorded, belonging to 20 families. Twenty-one plants recorded from the honey samples are used as medicinal plants in folklore and tribal medicine

    On Silicides in High Temperature Titanium Alloys

    Get PDF
    High temperature titanium alloys like IMI 685 contain small amounts of silicon (~ 0.25 wt. per cent) to improve creep resistance. Different types of silicides, namely Ti5Si3 (TiZr)5Si3(S1) and (TiZr)6 Si3 (S2), have been observed to precipitate in various silicon-bearing titanium alloys depending upon their composition and heat treatment. The precipitation of silicides, their orientation relationship with the matrix in different alloys, and the beneficial influence of thermo-mechanical treatment on the distribution of silicides have been pointed out. The effect of silicides on mechanical properties and fracture of the commercial alloy IMI 685 is also indicated

    Ultrasonic Velocity in Some Aqueous Solutions of Electrolytes

    Get PDF
    corecore