204 research outputs found

    Some biological aspect of the smallest goby fish (Knipowitschia caucasica Berg , 1916) in Gorgan Bay, Caspian Sea

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    This research was conducted in Gorgan Bay in 1994. The results showed that spawning of Goby fish, in southern part of Caspian Sea in the area of Gorgan Bay, from early winter to early spring had been gradually. The biggest nun fish in length which caught was 46 mm. There was positive correlation between length and body weight in males and females and this ratio was higher in females than males. Fishes had positive algometric growth over all male to female ratio was 1-1.1. The range of relative fecundity was 290 to 550 eggs and in average 395.5 which was depended on the length of fish

    An outline of necrosome triggers

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    Necroptosis was initially identified as a backup cell death program when apoptosis is blocked. However, it is now recognized as a cellular defense mechanism against infections and is presumed to be a detrimental factor in several pathologies driven by cell death. Necroptosis is a prototypic form of regulated necrosis that depends on activation of the necrosome, which is a protein complex in which receptor interacting protein kinase (RIPK) 3 is activated. The RIP homotypic interaction motif (RHIM) is the core domain that regulates activation of the necrosome. To date, three RHIM-containing proteins have been reported to activate the kinase activity of RIPK3 within the necrosome: RIPK1, Toll/IL-1 receptor domain-containing adaptor inducing IFN-beta (TRIF), and DNA-dependent activator of interferon regulatory factors (DAI). Here, we review and discuss commonalities and differences of the increasing number of activators of the necrosome. Since the discovery that activation of mixed lineage kinase domain-like (MLKL) by RIPK3 kinase activity is crucial in necroptosis, interest has increased in monitoring and therapeutically targeting their activation. The availability of new phospho-specific antibodies, pharmacologic inhibitors, and transgenic models will allow us to further document the role of necroptosis in degenerative, inflammatory and infectious diseases

    Surgical outcomes of Cerebellopontine angle tumors in 50 cases

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    Introduction: To report our experience with a large series of surgical procedures for removal of cerebellopontine angle (CPA) tumors using different approaches. Materials and Methods: This was a retrospective analysis of 50 patients (mean age, 49 years) with CPA tumors (predominantly acoustic neuroma) who underwent surgical removal using appropriate techniques (principally a translabyrinthine approach) during a 4-year period. Results: One death occurred during this study. There were nine cases (18) of cerebrospinal fluid leak, and five patients (10) were diagnosed as having bacterial meningitis. Complete gross tumor removal was not achieved in four patients (8). Facial nerve function as measured by the House Brackmann system was recorded in all patients 1 year following surgery: 32 had a score of 1 or 2; 26 had a score of 3 or 4; and 8 had a score of 5 or 6. Other complications included four cases of wound infection. Conclusion: The translabyrinthine approach was predominantly used in our series of CPA tumors, and complication rates were comparable with other large case series

    An investigation on Vibrionaceae family of bacteria as probiotic factors in shrimp culture

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    We investigated the effects of Vibrionaceae family of bacteria as probiotics in the process of growth and survival rate of shrimp during propagation stages. Bacterial flora were extracted from seawater, culture farms, shrimp culture farms and sludge of private propagation farms. Different bacteria such as Vibrio alginolyticus (serotype 1-4), Vibrio splendidus I, Vibrio fluvialis II, Vibrio anguillarum I, Vibrio costicul, Vibrio vulnificaus, Vibrio nereis, Vibrio camplbelli, Vibrio natriegens, Vibrio proteolyticus, Vibrio plegius II ,Vibrio fischeri, Aeromonas hydrophila, Aeromonas schuberti, Aeromonas salmonisida, Aeromonas veronii were isolated, identified and lyophilized. These bacteria were used in different experiments on shrimp life cycle stages while the shrimps were being fed on live food such as Chaetoceros, Skeletonema and Tetraselmis algae. Vibrio alginolyticus (serotype 1) with 107 cells/ml increased proliferation of Tetraselmis sp to 71 % in 6 days compared to the control experiment. Also Vibrio alginolyticus (serotype 4) with 105 cells/in' increased Tetraselmis sp. production to 389% in 6 days compared to control. Vibrio splendidus I was also found to be able to increase shrimp fork length in postlarvae stage 3 up to 23% as compared to control. Vibrio alginolyticus and Vibrio fischeri increased survival, fork lenght and body weight of green tiger shrimp in postlarvae stage significantly (P<0.05)

    Web-Based Recommendation System for Smart Tourism: Multiagent Technology

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    The purpose of the study is to design and develop a recommended system based on agent and web technologies, which utilizes a hybrid recommendation filtering for the smart tourism industry. A hybrid recommendation system based on agent technology is designed by considering the online communication with other sectors in the tourism industry, such as the tourism supply chain, agency etc. However, online communication between the sectors via agents is designed and developed based on the contract net protocol. Furthermore, the design system is developed on the java agent development framework and implemented as a web application. Case study-based results considering two scenarios involving 100 customers illustrated that the proposed web application improves the rate of the recommendation for the customers. In the first scenario without disturbances, this rate was improved by 20% and the second scenario with disturbances yielded a 30% rate of acceptable recommendation. In addition, based on the second scenario, real time data communication on the system occurred, thus the proposed system supported real time data communication

    Study on starred sturgeon (Acipenser stellatus) stocks in the suthern coast of the Caspian Sea

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    Starred sturgeon is the most commercial sturgeon species in the Iranian coast of the Caspian Sea. The condition and the development of its stocks need scientific investigation. During the past few years Mazandaran Fisheries Research Center has tried to study the condition of these stocks to the possible extent. In this paper we have tried to describe and analyze the taxonomy, biology, ecology and different parameters such as catch data, catch per effort, length, age, weight, sexual stages and the caviar in regard to starred sturgeon. The obtained results revealed that starred sturgeon stocks are diminishing

    Navigation performance and integrity monitoring for ballistic missiles using all-in-view GPS

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    Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1995.Includes bibliographical references (p. 157-158).by Jeff Hossein Hassannia.M.S

    Occult laryngeal foreign body mimicking normal thyroid cartilage

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    Introduction: Foreign body aspiration is common especially in children. The absence of history of choking does not rule out the diagnosis. Diagnosis required high index of suspicion. Case Presentation: Undiagnosed foreign body aspiration mostly occurs in bronchial airway rather than larynx and can cause severe complications. In this article, we report a silent laryngeal foreign body aspiration to show that careful history taking and accurate evaluation of radiography are important factors for diagnosis. Conclusions: The single most significant factor leading to detect of tracheobronchial foreign body aspiration is a high index of suspicion; this case highlights the possibility of a foreign body in the airway in patients who presents with a recent onset of chronic respiratory complaints. © 2015, Trauma Monthly

    Introduction to multiple filtration in on unit without electricity with aeration

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    Aquaculture development and production rise needs aquaculture proper filters. Filter fabrication that could be used as biological filter as physical filters and so can do energy saving is at first class of aquaculture engineering in the world. And as parallel as above strategy is ideal target of this project. Finally multi use filter with 120 centimeters height and 80 centimeters diameters, 85 liters bead bed volume with 170 liters per minute flow rate and 210 liters backwashing air. This filter decrease total suspended solids as 75%

    On The Right Path towards Benefiting From Tourism; A Compendious Debate on Sustainability

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    If well planned, tourism is considered to transfer viable and valuable sources of positive impacts to the local destinations. There have been many debates on the issue of sustainability in recent decades and hundreds of tourism plans have been proposed out of which just a handful could entice the admiration of the scientific communities. The secrets behind those successful master plans are their holistic and comprehensive perspectives that not only consider the benefits of each single stakeholder engaged in the plans but elucidate how to achieve such extent of participation through the plans they propose. In this research it has been tried to focus on one of the most outstanding tourism planning debates to attract the attention of the communities where the viability of such prospects for the cognizance of the tourism inadequacies has been underestimated. Northern Cyprus selected as a research area and the planning status of Famagusta city of this small island illustrated accordingly
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