Weyl holographic superconductor in the Lifshitz black hole background

We investigate analytically the properties of the Weyl holographic superconductor in the Lifshitz black hole background. We find that the critical temperature of the Weyl superconductor decreases with increasing Lifshitz dynamical exponent, $z$, indicating that condensation becomes difficult. In addition, it is found that the critical temperature and condensation operator could be affected by applying the Weyl coupling, $\gamma$. Moreover, we compute the critical magnetic field and investigate its dependence on the parameters $\gamma$ and $z$. Finally, we show numerically that the Weyl coupling parameter $\gamma$ and the Lifshitz dynamical exponent $z$ together control the size and strength of the conductivity peak and the ratio of gap frequency over critical temperature $\omega_{g}/T_{c}$.Comment: 25 pages, 22 figure

A critical review on soil ionisation modelling for grounding electrodes

Grounding electrode resistance non-linearly changes under impulse conditions due to soil ionisation phenomenon. Several models have been proposed to model soil ionisation for grounding electrodes applications. However, to date, there is yet an attempt made to compile all these works into a comprehensive review article. Therefore, this paper is written with the objective of summarizing all related works in this field as a one- stop reference. With reference to the literature, this paper is written to summarize the working principles of the soil ionisation models as well as the accuracy and performance analysis of the models. This paper, particularly highlights the deficiencies of the available models in terms of accuracy and performance. This knowledge will contribute to the development of a new accurate and efficient soil ionisation model

Effect of Dietary Ethanolic Extract of Lavandula officinalis on Serum Lipids Profile in Rats

Antioxidants are effective in prevention and treatment of cardiovascular diseases. Lavandula officinalis possesses antioxidant activity, therefore, in this study; the effects of Lavandula officinalis extract were investigated on serum lipids levels of rats. Experimental mature male Wistar rats were treated with 100, 200 or 400 mg/Kg/day of lavender ethanolic extract or distilled water for 25 days via gastric gavage (n=8 each group). At the end of 25(th) day, the serum cholesterol, triglyceride, HDL, LDL and VLDL levels, as well as atherogenic indices were determined in rats' serum. The ethanolic extract of lavender decreased serum cholesterol, triglyceride, LDL and VLDL levels in 100 mg/Kg group (p=0.03, p=0.001, p=0.001, p=0.001, respectively). Serum HDL level increased in 100 mg/Kg/day group (p=0.01). Lavender extract decreased LDL/HDL level at doses of 100 and 200 mg/Kg/day (p=0.001, p=0.001, respectively). The TG/HDL levels decreased in experimental groups with doses of 100 and 200 mg/Kg/day (p=0.001, p=0.001, respectively). Lavandula officinalis extract exerts hypolipidemic effect in rats and might be beneficial in hyperlipidemic patients

Effect of ethanolic extract of beet roots and leaves on motor coordination in male Wistar rats

زمینه و هدف: عدم تعادل حرکتی در اثر عوامل مختلفی از جمله ضایعات مغزی عصبی، مشکلات عضلانی، کم خونی و مصرف داروها رخ می دهد. گیاه چغندر با نام علمی Beta vulgaris L. دارای اثرات متنوع از جمله اثرات ضد التهابی، آنتی اکسیدانی، ضد استیل کولین استرازی و کاهش قند خون می باشد که در این مطالعه اثر عصاره اتانولی برگ و ریشه این گیاه بر تعادل حرکتی بررسی شده است. روش بررسی: در این مطالعه تجربی عصاره اتانولی ریشه و برگ گیاه چغندر به روش ماسراسیون تهیه شد. موش های صحرایی نر بالغ به طور تصادفی در 7 گروه 8 تایی تقسیم شدند و به مدت 25 روز آب مقطر، دوزهای مختلف عصاره ریشه (250،500 و mg/kg1000) و برگ چغندر (50 و mg/kg100) را به صورت داخل صفاقی دریافت کردند. روز 26، نیم ساعت بعد از آخرین تزریق قدرت حفظ تعادل حرکتی موش ها به وسیله روتارود اندازه گیری شد. یافته ها: عصاره ریشه چغندر در دوزهای 500 و mg/kg1000 سبب افزایش معنی دار در تعادل حرکتی شد (p0.05). نتیجه گیری: عصاره های ریشه و برگ گیاه چغندر باعث بهبود فعالیت حرکتی در موش های صحرایی نر بالغ می شود

Anti-amnesic activity of Citrus aurantium flowers extract against scopolamine-induced memory impairments in rats

Alzheimer's disease (AD) is a progressive neurological disorder that mostly affects the elderly population. Learning and memory impairment as the most characteristic manifestation of dementia could be induced chemically by scopolamine, a cholinergic antagonist. Cholinergic neurotransmission mediated brain oxidative stress. Citrus aurantium (CA) has traditionally been used for the treatment of insomnia, anxiety and epilepsy. The present study was designed to investigate the effect of Citrus aurantium on scopolamine-induced learning and memory deficit in rats. Forty-two Wistar rats were divided into six equal groups. (1) Control (received saline), (2) SCOP (scopolamine at a dose of 1 mg/kg for 15 days), (3) and (4) SCOP + CA (scopolamine and CA extract at doses of 300 and 600 mg/kg per day for 15 days), (5) and (6) intact groups (CA extract at 300 and 600 mg/kg per day for 15 days, respectively). Administration of CA flower extract significantly restored memory and learning impairments induced by scopolamine in the passive avoidance test and also reduced escape latency during trial sessions in the Morris water maze test. Citrus aurantium flower extract significantly decreased the serum malondialdehyde (MDA) levels. Citrus aurantium flower extract has repairing effects on memory and behavioral disorders produced by scopolamine and may have beneficial effects in the treatment of AD

Isolation and typing of the influenza viruses in the Caspian littoral of Iran

Present study introduces results of common influenza virus strains in the north of Iran. Samples collected from 65 patients with acute respiratory illness by throat washing and swabs, randomly from north of Iran (Mazandaran, Golestan and Guilan provinces). The patients suffered from fever (high), cough, sore throat, general malaise, chill and myalgia. Viruses were isolated by cell culture and confirmed with HA (Hemagglutination) test and then typed by and HI (Hemagglutination Inhibition) test. Out of 65 throat samples, 12 influenza viruses were isolated and typed. Isolated viruses belonged to A (H1N1), A (H3N2) and B influenza viruses. This study showed that Influenza viruses displayed identical pattern to other provinces in Iran and to other countries. To fight against epidemics and pandemics, we should collect enough data about status of influenza each year and data of exact vaccine formulation application for use in different areas of the world. Acquired data has shown that the vaccine for above viruses that confirmed by WHO can result in decreased risks of influenza in at risk cases in provinces of north Iran

Active motion of tangentially driven polymers in periodic array of obstacles

One key question about transport of active polymers within crowded environments is how spatial order of obstacles influences their conformation and dynamics when compared to disordered media. To this end, we computationally investigate the active transport of tangentially driven polymers with varying degrees of flexibility and activity in two-dimensional square lattices of obstacles. Tight periodic confinement induces notable conformational changes and distinct modes of transport for flexible and stiff active filaments. It leads to caging of low activity flexible polymers inside the inter-obstacle pores while promoting more elongated conformations and enhanced diffusion for stiff polymers at low to moderate activity levels. The migration of flexible active polymers occurs via hopping events, where they unfold to move from one cage to another, similar to their transport in disordered media. However, in ordered media, polymers are more compact and their long-time dynamics is significantly slower. In contrast, stiff chains travel mainly in straight paths within periodic inter-obstacle channels while occasionally changing their direction of motion. This mode of transport is unique to periodic environment and leads to more extended conformation and substantially enhanced long-time dynamics of stiff filaments with low to moderate activity levels compared to disordered media. At high active forces, polymers overcome confinement effects and move through inter-obstacle pores just as swiftly as in open spaces, regardless of the spatial arrangement of obstacles. We explain the center of mass dynamics of semiflexible polymers in terms of active force and obstacle packing fraction by developing an approximate analytical theory.</p

Economic evaluation of municipal solid waste recycling in Yazd: Cost-benefit analysis

Background and aims: In every urban waste management plan, recycling and reuse is considered as an economic pattern. This study aimed to economic evaluation of municipal solid waste recycling in Yazd by cost-benefit analysis in 2015. Methods: This research is a descriptive–analytic study which in the data about quality and quantity of municipal solid waste in Yazd city were collected through the sampling and physical analysis and the data about total income and costs from the implementation of waste separation and recycling were collected by interview with recovery officials and field observations and were analyzed through the economic analysis of the cost-benefit. Results: The results indicated that the mean of waste produced annually in Yazd city was 109679.51 tons per years. The percentage of municipal waste components was organic matter (67%), plastics (7%), paper and cardboard (5%), metals (2%), wood (2%), glass (2%), leather and rubber (1%), textiles (1%) and PET containers (1%), respectively. Also, Only 2 percent of total daily production of waste were separated and recycled at source. The implementation a cost of waste separation at source on a monthly basis was 768,880,000 Rails and the benefits of it was 904,667,400 Rails and as a result, the amount of net benefit derived from the recycling scheme was 135,787,400 Rails. Conclusion: Considering the economic benefits of waste separation and recycling at source in the city of Yazd, can be in addition to compensate the many of the waste management sector costs and reduced waste disposal and management costs, Preventing environmental degradation and pollution of water, soil and air resources

Suspended silicon integrated platform for the long-wavelength mid-infrared band

The atmospheric-transmission window and the fingerprint region of many substances overlaps with the long-wave infrared band. This has enabled the emergence of a new path for photonic integrated circuits, which could exploit the potential applications of this wavelength range, including chemical and bio sensing. In this work we review our latest advances in the suspended silicon platform with subwavelength grating lateral cladding at 7.7-µm wavelength. Suspended waveguides only require one lithographic etch step and can be specifically designed to maximize sensitivity when used as sensors. Waveguides with propagation loss of 3.1±0.3 dB/cm are demonstrated, as well as bends with less than 0.1 dB/bend. Suspended waveguides based on shifted Bragg grating lateral cladding are also reported, with propagation loss of 5.1±0.6 dB/cm. These results prepare the ground for the development of a platform capable of covering the entire mid-infrared band. Keywords: suspended silicon, mid-infrared, long-wave infrared, subwavelength grating, Bragg.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Clinical trials of cellular therapies for the treatment of colorectal cancer: a narrative review

Colorectal cancer (CRC) treatment using common chemotherapy approaches has drawbacks such as side effects, costs, and resistance of cancer cells which affects patients’ prolonged survival, and quality of life. The immune cells have pivotal roles in regulating tumor progression in the tumor microenvironment (TME). The most important CRC cellular immunotherapies include the use of tumor-derived cells such as tumor-infiltrating lymphocytes (TILs) and lymph node lymphocytes (LNLs), peripheral blood mononuclear cells (PBMCs), derived cells, including T cells, natural killer (NK) cells, cytokine-induced killer (CIK) cells, and chimeric antigen receptor (CAR) cells. Although adoptive cell therapy has some advantages, some disadvantages have been reported. TILs cells are strictly directed against tumor-specific antigens; however, they are inefficient due to immune editing. CIK cells have a major histocompatibility complex (MHC)-independent cytotoxic effect and need concurrent high-dose interleukin (IL)-2 administration. In addition, chimeric antigen receptor-T cells (CAR-T cells) are MHC-independent that overcome MHC downregulation by the tumor. They are potent in recognizing any cell surface antigen and are applicable to a broad range of patients and T-cell populations. Here, the researchers present the most popular cancer cellular immunotherapy approaches and discuss their clinical relevance by referring to data obtained from CRC clinical trials. To date, clinical experience and efficacy suggest that combining more than one immunotherapy intervention, in combination with other treatments like chemotherapy, radiotherapy, and targeted therapy, is promising for cancer therapy