A flexible compact size with a dual band elliptical-shape implantable antenna is designed for biomedical purposes. The suggested antenna has an elliptical shape to be more comfortable for being implanted in human tissue. The implantable antenna is printed on RO3010 substrate with 2mm as a thickness and 10.2 as a dielectric constant. It consists of an active planar C-shaped element and a parasitic planar inverted C-shaped element. The proposed antenna is designed as 12 mm for the major axis radius and 8 mm for the minor axis radius. It operates in dual bands: The Industrial Scientific and Medical band (ISM) [2.4 GHz - 3.5 GHz] and Medical Implant Communications Service band (MICS) [394 MHz - 407.61 MHz]. A short-circuited pin is used to minimize the antenna overall size and for farther size reduction a capacitive load is used between the radiator and the ground plane. For biocompatibility, a thin-thickness layer of Alumina is used as a superstrate. The suggested antenna is tested in multi-layer tissue model and the Specific Absorption Rate (SAR) value is computed

Assessment of the exhalation rate allows a classification of materials according to their potential risk of\nexposure to radon. The radon exhalation process depends on the grain size. The present study investigates the\ngranulation effect on the radon concentration and its exhalation rate from a sediment. The sediment sample\nwas sieved into different grain size dimensions ranging from < 0.063 to >2 mm. The exhalation rate of each\nfraction was measured using an airtight closed chamber using a continuous radon detector. The radon\nexhalation rate was found to decrease with an increase in grain size above 0.125 mm. This decrease followed\nan inverse power law. The uranium content on grain size was studied using an autoradiography method. It\nincreased for the smallest grains (<0.25 mm), reached a maximum for the grains (0.25-0.5 mm), then decreased\nfor the larger grains (>0.5 mm). The measured values of radon exhalation rate and uranium content are under\nthe limits reported worldwide.

The main objective of this study was to underscore detail gross and ultra-structural morphology, molecular characterization of ticks found on snakes and their ability to carry zoonotic pathogens. The investigation was carried out throughout the North-Eastern states of India during different seasons from March, 2020 to February, 2021. The outer surface of different species of snakes that were either kept in zoos or captured or killed by local people were thoroughly examined for presence of any ticks. Some of the collected ticks were preserved in absolute alcohol for molecular study while rest was kept in 70% alcohol for Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). Light microscopy, SEM and TEM revealed specific morphological features through which the collected ticks were identified as Amblyomma gervaisi and Amblyomma varanense and further confirmation was revalidated by molecular detection. The ticks were commonly found during the rainy season (July to October) and Indian black cobra (Naja naja) was found more commonly infested with both genera than that of other three species of snakes. The existence of tick-associated pathogens in A. gervaisi and A. varanensewere determined by molecular and bioinformatics techniques. DNA isolated from snake ticks yielded products by the tick mitochondrial 16S rRNA PCR. Sequence homology and phylogenetic analysis of amplified PCR product revealed that the pathogen infecting Amblyomma ticks was a member of the genus Coxiella. The partial sequence of the Coxiellaagent of A. gervaisi and A. varanensegrouped with Coxiella symbionts of other hard tick species (Ixodidae). Additionally, present study suggests a very long period of coevolution between ticks and Coxiella symbionts and suggests that the original infection might have occurred in an ancestor common to the 2 main tick families, Argasidae (soft ticks) and Ixodidae (hard ticks). However, further extensive study of additional tick species and expanded host populations must be required to conclude this evolutionary relationship between ticks and Coxiella symbionts.

The Fourier trans form infrared (FTIR) spectroscopic characterization of kaolinite-fertilizer mixtures at various conditions is presented.The mixtures were prepared with different molar ratios of starting materials (kaolinite:fertilizer; 1:3, 1:1. 3:1), milling time (60, 120, and 180min) and rotational speeds (200, 400, 700 rpm).The results indicate that the optimal milling duration, speed and weight ratio of kaolinite-fertilizer can be similar for different fertilizers (CON2H4, (NH4)2HPO4, K2SO4, KH2PO4) to allow amorphous kaolinite to act as a carrier ofK+, NH4+, PO43- to be released slowly for use as plant nutrients. A weight ratio of 3:1 and 120 min milling duration at rotational speeds of 600 rpm represent the most suitableconditions to synthetize slow-release fertilizers.

A survey was conducted in Obuasi municipality in Adansi North to assess manure production, management and utilization. Structured questionnaires and personal observations were used as tool (research method). In all twenty samples (poultry farmers) were conveniently selected using convenience sampling technique.\\nThe collection of the data took six weeks, thus from 16th December, 2011 to 27th December, 2012. Data obtained were analysed using statistical Package for Social Sciences (SPSS) computer software. Descriptive statistics namely means, frequencies, percentages and tabulations were used to determine relationships between variables.\\nThe research revealed that 75% of poultry farmers in Obuasi municipality produce manure/bedding material as the major waste and 25% of the farmers produce wasted feed/broken eggs. The research further revealed that 85% of the poultry farmers in Obuasi municipality store their waste in sacks and 15% of them store in outside structures. Again, it can be observed from the study that 35% of the farmers apply the waste generated in their crop farms to serve as organic fertilizer. The research also revealed that 20% of the farmers apply the manure in their fish ponds. This serves as feed for the fishes and fertilizer to the phytoplankton and other primary productivity. Lastly, the research revealed that 30% of the poultry farms are 10m close to the nearness residential area. 15% of the farms are 20m close to the nearness residential area and 25% of them are also 30m close to residential areas.

Increasing using internet and cyberspace as well as performing many commercial activities around the world led to legal consideration of these issues. Forming of juridical-legal issues, which need desired responses of jurists, is among achievements of cyber transactions. Jurists have presented some issues about commerce traditionally including contracts formation, selling contract, optional contract, and etc. the main objective of the present study has been assessing cyber transactions, based on Iranian law and jurisprudence. The study has applied library studies and related books or papers in this regard, for legal and juridical assessment of it. The paper has been considered descriptive analysis of juridical issues of transactions legal issues of cyber transactions and E-commerce, in addition to introducing E-commerce and cyber transactions.

Performance evaluation of a locally developed 60 litres mobile on-farm digester suitable for rural farm settlements is presented. Experimentation using cow dung and vegetable waste collected from within the farm was carried out to determine the performance of the digester. The digester was charged with selected substrates respectively with water in a ratio 1:2 for thirty days retention time within the mesophilic temperature range and comparative yield within the same operating conditions was studied. The results obtained from the gas production showed that cow dung produced a cumulative biogas peak yield of 0.702 litres with percentage yield of 3.51 % per 20 litre of slurry while vegetable waste produced a cumulative peak yield of 0.144 litres with 0.72 % per 20 litre of slurry. Significant yield started from the 17th day of retention for cow dung substrate while it started by the 24th day for vegetable waste. These results indicate the performance of the digester for gas production within a farm. It achieved advantageous yield of cow dung over vegetable waste like established digesters while showing the potentials of both substrates as sources of biogas. The results indicate the workability of the developed digester and its potentials for use within a farm settlement.

This is an observation that, by its nature, can be very interesting to researchers involved in all aspects of headache and related pain, including clinical practice and pain management.\\n\\nOur patient presented clinical episodes of sudden visual alterations compatible with migraine with aura without pain. The process could be related to an episode that patient suffered in the childhood and to the malformations in the circle of Willis, the vertebral artery hypoplasia, or both. \\n\\nAn early angiographic study with migraine with aura, with or without headache, could contribute to the identification of structural abnormalities in the cerebral vessels and help us to understand the hemodynamic mechanisms that occur in patients with migraine.\\n\\nIn this sense, these studies allow us to propose preventive therapeutic approaches that reduce or correct the personal susceptibility. Furthermore, as pointed out by other authors, angiographic studies, could help us to understand the possible mechanisms that underlie migraine with aura and their relation to subclinical stroke.