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Measure-Resend Semi-Quantum Private Comparison Scheme Using GHZ Class States
No full textQuantum private comparison is an important topic in quantum cryptography. Recently, the idea of semi-quantumness has been often used in designing private comparison protocol, which allows some of the participants to remain classical. In this paper, we propose a semi quantum private comparison scheme based on Greenberge-Horne-Zeilinger (GHZ) class states, which allows two classical participants to compare the equality of their private secret with the help of a quantum third party (server). In the proposed protocol, server is semi-honest who will follow the protocol honestly, but he may try to learn additional information from the protocol execution. The classical participants’ activities are restricted to either measuring a quantum state or reflecting it in the classical basis{0,1}. In addition, security and efficiency of the proposed schemes have been discussed
Mesenchymal stem cells transplantation attenuates experimentally induced brain injury after neonatal hypoxia by different two routes of administrations
No full textThe neonatal hypoxic–ischemic encephalopathy (HIE) is an important cause of neurological morbidity and
mortality in neonates. Cell therapy is considered a promising method for treating severe neurological disorders such as
this one. Stem cells have the capacity for self-renewal and differentiation into certain cell lineages. The present study was
aimed to find out the most beneficial route of bone marrow-derived mesenchymal stem cells (BMSCs) administration
for the attenuation of experimentally induced HIE in neonatal rats. Sixty neonatal rats were divided randomly into
four groups. Group 1: control group. Group 2: rats were exposed to bilateral ligation of cephalic arteries. Group 3: rats
were exposed to bilateral ligation of cephalic arteries and then underwent intravenous (IV) BMSC injection. Group 4:
rats were exposed to bilateral ligation of cephalic arteries and then underwent intracerebroventricular (ICV) BMSC
injection. The animals were evaluated by (a) neurobehavioral tests; (b) histopathology, i.e., histological and immunohistochemical studies; and (3) gene expression studies. The BMSC treated groups (3 and 4) showed improvement in
neurobehavioral tests, histopathological studies, and gene expression, as compared to non-injected lesioned rats (Group
2) with better improvement in Group 4 (ICV injections) than in Group 3 (IV injections)
Active compounds of medicinal plants, mechanism for antioxidant and beneficial effects
No full textAn increased interest in the antioxidant effects
of medicinal plants has developed in recent years. Identifying
antioxidant compounds present in medicinal plants and elucidating
the mechanism by which they prevent oxidation have been the
focus of the research community. We performed a systematic and
exhaustive review aimed at analyzing the available data regarding
the beneficial effects of secondary metabolites in plants. The result
of this review is presented as a description of free radicals, as well
as cellular and physiological oxidative stress, is provided. The
origin and source of antioxidant compounds, and the cellular and
molecular mechanism by which they exert antioxidant effects,
have been reported. The absorption, distribution and, elimination
of antioxidants are mentioned. The beneficial effects of secondary
metabolites of medicinal plants in various high incidence
disease conditions were also reviewed. Finally, disease states that
benefit from antioxidant compounds includes diabetes, cancer,
cardiovascular diseases, and liver, brain and, intestinal diseases
mRNA-specific translational regulation in yeast
No full textThe expression of a gene is governed at various levels, from transcriptional to translational level. The
translational control is widely used to regulate gene expression, especially when a rapid, local, and selective control over
protein synthesis is required. The present review describes instructive examples of translational regulation in yeast,
together with regulatory elements within mRNAs. The review also outlines the important contributions of mRNAbinding proteins that act in harmony with several translational elements to generate appropriate translational signals
and responses
Changes in Anatomical Features and Protein Pattern of Sunflower Partially Resistant and Susceptible Lines During Infection By Virulence Factors of Sclerotinia Sclerotiorum
No full textHelianthus annuus L. as an oil seed crop is widely grown throughout the world. One of the most destructive diseases of sunflower is stem rot caused by Sclerotinia sclerotiorum. Oxalic acid is the major virulence factor of this necrotrophic pathogen. It is important to further investigate plant responses to this non-specific toxin. Therefore, in the present study, we compared the patterns of total soluble proteins and xylem morphology of partially resistant and susceptible sunflower lines after treatment with Sclerotinia culture filtrate. The basal stems of both lines were treated with 40 mM oxalic acid (pH 3.7) of fungus culture filtrate and samples were collected at 24, 48 and 72 hours post treatment. In SDS-PAGE protein pattern new protein bands appeared in both lines after treatment. These observations suggest induction of stress-related proteins upon culture filtrate treatment. The identities of these new proteins need to be more clarify in future investigations. The changes in xylem morphology and degree of lignification of both lines was studied by light microscopy and microtome sectioning techniques after treatment with S. sclerotiorum culture filtrate. Anatomical investigations revealed changes in xylem diameter and xylem lignification of treated lines at various time points. More lignin deposition in xylem vessels of partially resistant line has been observed after treatment. In addition, the size of xylem vessels in partially resistant line has been sharply decreased upon pathogen filtrate treatment. The results of this study will help us gain a more complete understanding of resistance mechanisms to this cosmopolitan and devastating pathogen
Photosynthetic Behaviour and Mineral Nutrition of <i>Tamarix gallica</i> Cultivated Under Aluminum and NaCl Combined Stress
No full textThe lack of knowledge of plant tolerance and differential response to aluminum (Al) encouraged many researchers, in the last decade, to elucidate Al toxicity and tolerance mechanisms. The current study reported the impact of Al, a toxic element with negative effects on plant growth and development, in halophytic plant Tamarix gallica. Plants were subjected to different Al concentrations (0, 200, 500 and 800 μM) with or without NaCl (200 mM) supplementation. Growth, photosynthesis and mineral content were assessed. Al stress had a significant decrease on shoots’ biomass production between 19 to 41%, and a little variation on chlorophyll content and photosynthetic efficiency (Fo, Fm, Fv fluorescence’s and Fv/Fm). Furthermore, the Al-treatments did not affect significantly the content of potassium, calcium, and magnesium in different plant parts, whereas NaCl addition to the medium induced a decrease in these elements’ concentrations. Our results have shown that T. gallica is able to accumulate the high levels of Al in shoots and roots, 6288 μg.g-1 DW and 7834 μg.g-1 DW respectively. It is considered as a hyperaccumulator plant of Al. In addition, Na+ contents in shoots and roots exceed 23000 μg.g-1 DW. Therefore, T. gallica presents a high tolerance at the same time to Al and NaCl phytotoxicity, so it is interesting to use in phytoremediation programs
Cultivated Land Monitoring System Based on Dynamic Wake-Up UAV and Wireless of Distributed Storage
No full textThe drawbacks of the traditional multi-hop structure of wireless sensor networks (WSNS) are susceptible to reflection, scattering and diffraction, serious attenuation of signal intensity and phase deviation due to various obstacles in cultivated land environment and mountains. In this paper, the wireless signal intensity is measured and curve fitting is done respectively in both open environment and obstacle-environment with both sending and receiving height of 0 m, 1 m, and 2 m. It is found out that packet loss probability is too high when an obstacle exists. In such a case, unmanned aerial vehicle (UAV) is introduced to activate terrestrial nodes and operation mechanism of distributed storage. Experimental results show that both ground-to-air barrier-free communication and communication with obstacles can greatly reduce the energy consumption of each node and packet loss probability, thus greatly improving the reliability of UAV-WSN system
Experimental Investigations on Web Crippling Failure Modesof Aluminum Hollow and Composite Tubes
No full textIn order to studythe web-crippling behavior of aluminum hollow section subjected toconcentrated load, sixteen aluminum hollow tubes withdifferent loading conditions, bearing lengthandweb slenderness ratioswere tested. This paperalso discusseda method to improve the web crippling strength of the aluminum hollow sections byinfilling the mortar as composite section, and four aluminum composite sections were tested. The literature has reported lots of web crippling tests, butthere isfew reportson web crippling behavior of aluminum composite sections. Interior-Ground(IG) and End-Ground(EG)loading conditions were adopted, with the specimens placed on the ground to simulate the load of floor joists. Specimens were also placed on a bearing plate with end (ETF) or interior (ITF) bearing load.The influenceof supporting conditions,loading positions, bearing length and web slenderness ratioson web crippling ultimate bearingcapacityand ductility of aluminum hollow sections wasstudied. The enhancements of infilling mortar were also evaluated. The results obtained from the experiments show thatinfilling the mortar inaluminum hollow tubesis aneffective methodfor enhancingthe ultimate capacityof theweb, especially for specimens under Interior-Ground(IG) condition.Based on the results of parameterresearch, this paper proposes a series of design formulas for well predictingweb crippling ultimate capacity of aluminum hollow and composite tubes under four different loading and boundary conditions
Platelet rich plasma (PRP) induces autophagy in osteoblast precursor 3T3-L1
No full textAutophagy is an essential cellular homeostatic mechanism by which intracellular components
are delivered into the lysosomes for degradation and recycling. Autophagy has been related with a
diversity of pathological or physiological dentary processes such as bone remodeling, skeletal aging,
osteoclastogenesis, osteoblastogenesis and different types of oral cancer. Platelet-rich plasma (PRP),
isolated from autologous blood, is a plasma preparation containing a higher concentration of platelets
which contains numerous different growth factors and cytokines that activate several cellular signaling
cascades. The purpose of this study is to investigate the effect of PRP on autophagy stimulation in
both osteoblast precursor 3T3-L1 and non-related osteoblastic cells. Our results showed that PRP
can increase the number of autophagic structures in 3T3-L1 and HeLa (cervical cancer cells) cells.
Moreover, we have determined by Western blot a rise in the lipidated form of the autophagic protein
LC3 (i.e. LC3-II) upon PRP treatment. Taken together, our results suggest that PRP is able to induce a
strongly autophagy response in osteoblast precursor and, to a lesser extent, in non-related osteoblastic
cells, suggesting that PRP could be a potential therapeutic tool for some autophagy-related diseases
associated with bone homeostasis
Estimating the Number of Posts in Sina Weibo
Get PDFSina Weibo, an online social network site, has gained popularity but lost it in recent years. Now we are still curious on the number of posts in Sina Weibo in its golden age. Besides checking this number in Sina’s operating results, we aim to estimate and verify this number through measurement by using statistical techniques. Existing approaches on measurement always rely on the supported streaming application programming interface (API) which provides proportional sampling. However no such API is available for Sina Weibo. Instead, Sina provides a public timeline API which provides non-proportional sampling but always returns a (nearly) fixed number of s amples. In this paper, we present a novel method utilizing this API and estimate the number of posts in Sina Weibo in its golden age