1,802 research outputs found
P(P bar)P elastic scattering and cosmic ray data
It is shown that the total cross section for pp elastic scattering at cosmic ray energies, as well as the total cross section, the slope parameter b(s,t) and the differential cross section for small momentum transfer at ISR and collider energies for p(p)p elastic scattering can be simultaneously fitted by using a simple Regge pole model. The results of this theory is discussed in detail
QCD analysis of neutrino charged current structure function F2 in deep inelastic scattering
An analytic expression for the neutrino charged current structure function F sub 2 (x, Q sup 2) in deep inelastic scattering, consistent with quantum chromodynamics, is proposed. The calculated results are in good agreement with experiment
USE OF PROSTAGLANDIN (PGF2α) TO INDUCE OESTRUS IN POSTPARTUM SAHIWAL COWS
Twenty-four postpartum Sahiwal cows that did not show oestrus upto 85 days postpartum were randomly divided into two equal groups, A and B. Group A cows were injected 2 ml Prostavet injection containing 5 mg Etiproston, a synthetic analogue of PGF2α (Virbac, France) intramuscularly at day 85 postpartum on chronological basis of calving dates without palpation. A second injection was given 11 days later to those cows that did not respond to first injection. A third injection was given at 118 days postpartum to those cows that had not responded to 1st and 2nd injection of PGF2α and did not show oestrus. The cows in group B were not given any treatment and served as control. The cows found in oestrus were artificially inseminated 12 hours after the detection of oestrus. The cumulative oestrus response was higher (66.66%) in group A than in group B (25%). Similarly, in group A the behavioral symptoms and physical changes were more pronounced as compared to group B. Mean (± SE) interval from treatment to onset of oestrus in group A was 96 ± 15.08 hours whereas, mean interval to oestrus from beginning of experiment was 25.0 ± 1.0 days in group B. Statistically non significant difference was observed in the mean duration of oestrus (23.25 ± 1.99 vs. 20.33 ± 1.45 hours) between animals of the two groups. However, a significant (P<0.05) difference was observed for the mean calving to first oestrus interval (89 ± 0.62 vs. 110 ± 0.19 days) in groups A and B. From the results, it is concluded that PGF2α is useful for treatment of unobserved oestrus in postpartum Sahiwal cows
Total Cross Sections at current/Future Colliders, conventional models and QCD
Rise in total cross sections for elastic scattering generated immense interest both for experimental measurements and theoretical investigations. How will total cross section behave at LHC and Cosmic Ray energies is therefore in the limelight of our future measurements. Theoretical studies become even more interesting when we take into consideration the ratio of real and imaginary parts of the scattering amplitudes. We will briefly undertake the current results and future prospects in the light of conventional as well as QCD-based phenomenology
Context Mining of Sedentary Behavior for Promoting Self-Awareness Using Smartphone
Sedentary behaviour is increasing due to societal changes and is related to prolonged periods of sitting. There is sufficient evidence proving that sedentary behaviour has a negative impact on people’s health and wellness. This paper presents our research findings on how to mine the temporal contexts of sedentary behaviour by utilizing the on-board sensors of a smartphone. We use the accelerometer sensor of the smartphone to recognize user situations (i.e., still or active). If our model confirms that the user context is still, then there is a high probability of being sedentary. Then, we process the environmental sound to recognize the micro-context, such as working on a computer or watching television during leisure time. Our goal is to reduce sedentary behaviour by suggesting preventive interventions to take short breaks during prolonged sitting to be more active. We achieve this goal by providing the visualization to the user, who wants to monitor his/her sedentary behaviour to reduce unhealthy routines for self-management purposes. The main contribution of this paper is two-fold: (i) an initial implementation of the proposed framework supporting real-time context identification; (ii) testing and evaluation of the framework, which suggest that our application is capable of substantially reducing sedentary behaviour and assisting users to be active
Hepatitis C virus attenuates mitochondrial lipid β-oxidation by downregulating mitochondrial trifunctional-protein expression
The course of hepatitis C virus (HCV) infection and disease progression involves alterations in lipid metabolism, leading to symptoms such as hypocholesterolemia and steatosis. Steatosis can be induced by multiple mechanisms, including increases in lipid biosynthesis and uptake, impaired lipoprotein secretion, and/or attenuation of lipid β-oxidation. However, little is known about the effects of HCV on lipid β-oxidation. A previous proteomics study revealed that HCV interacted with both the α- and β-subunits of the mitochondrial trifunctional protein (MTP), an enzyme complex which catalyzes the last 3 steps of mitochondrial lipid β-oxidation for cellular energy production. Here we show that in HCV-infected Huh7.5 cells, lipid β-oxidation was significantly attenuated. Consistently with this, MTP protein and mRNA levels were suppressed by HCV infection. A loss-offunction study showed that MTP depletion rendered cells less responsive to alpha interferon (IFN-α) treatment by impairing IFN-stimulated gene expression. These aspects of host-virus interaction explain how HCV alters host energy homeostasis and how it may also contribute to the establishment of persistent infection in the liver
Antimicrobial activities of eugenol and cinnamaldehyde against the human gastric pathogen <i>Helicobacter pylori</i>
Background: Eradication of Helicobacter pylori is an important objective in overcoming gastric
diseases. Many regimens are currently available but none of them could achieve 100% success in
eradication. Eugenol and cinnamaldehyde that are commonly used in various food preparations are
known to possess antimicrobial activity against a wide spectrum of bacteria.
Aim: The present study was performed to assess the in vitro effects of eugenol and cinnamaldehyde against indigenous and standard H. pylori strains, their minimum inhibitory concentrations (MICs) and time course lethal effects at various pH.
Methods: A total of 31 strains (29 indigenous and one standard strain of H. pylori ATCC 26695,
one strain of E. coli NCIM 2089) were screened. Agar dilution method was used for the
determination of drug sensitivity patterns of isolates to the commonly used antibiotics and broth
dilution method for the test compounds.
Results: Eugenol and cinnamaldehyde inhibited the growth of all the 30 H. pylori strains tested, at
a concentration of 2 μg/ml, in the 9th and 12th hours of incubation respectively. At acidic pH,
increased activity was observed for both the compounds. Furthermore, the organism did not
develop any resistance towards these compounds even after 10 passages grown at sub-inhibitory
concentrations.
Conclusion: These results indicate that the two bioactive compounds we tested may prevent H.
pylori growth in vitro, without acquiring any resistance
Assessment of energy credits for the enhancement of the Egyptian Green Pyramid Rating System
Energy is one of the most important categories in the Green Building Rating Systems all over the world. Green Building is a building that meets the energy requirements of the present with low energy consumption and investment costs without infringing on the rights of forthcoming generations to find their own needs. Despite having more than a qualified rating system, it is clear that each system has different priorities and needs on the other. Accordingly, this paper proposes a methodology using the Analytic Hierarchy Process (AHP) for assessment of the energy credits through studying and comparing four of the common global rating systems, the British Building Research Establishment Environmental Assessment Method (BREEAM), the American Leadership in Energy and Environmental Design (LEED), the Australian Green Stars (GS), and the PEARL assessment system of the United Arab Emirates, in order to contribute to the enhancement of the Egyptian Green Pyramid Rating System (GPRS). The results show the mandatory and optional energy credits that should be considered with their proposed weights according to the present and future needs of green Egypt. The results are compared to data gathered through desk studies and results extracted from recent questionnaires
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