2015年12月30日星期三

Share:Sonar Glove May Allow People to 'See' Underwater With Their Hands

PHOTO: Researchers say this glove - shown here in a photo from its website - uses a combination of sonar technology and water jets that can help users find objects underwater.

Forget goggles. Researchers are working on a device that would allow users to "see" with their hands thanks to sonar technology.
Called an IrukaTact, the device was inspired by dolphin sonar and uses tiny jets to let a user know when they are close to the object. Iruka means dolphin in Japanese.
The device was created at Tsukuba University in Japan by PhD candidates Aisen Caro Chacin and Takeshi Oozu.

The information retrieved by the sonar technology is then transmitted to the user with tiny jets, according to the researchers. The closer a person is to an object the more water pressure they feel, possibly allowing them to find objects even in murky conditions.
"It extends the sense of touch to feel the topography of a sunken floor," Chacin wrote online about the device. "[It's] in parallel to the wearer’s hand in order to perceive objects under cloudy waters where sight is no longer useful."
Chacin said the device might able to help during underwater search and recovery missions. She and Oozu developed the project after presenting an early design at the Ars Electronica Festival for Art and Electronics in September of this year.
By GILLIAN MOHNEY  
  • Story source: http://abcn.ws/1IDdYBF

    2015年12月26日星期六

    SciencePG:$100 Deduction in Some Featured Journals



    Science Publishing Group decides to adjust the article processing charges of some journals from December 15, 2015 to May 31, 2016 so as to help authors publish more papers. You honorable authors can enjoy $100 deduction in 20 Featured journals for papers submitted during this period.
    20 Featured journals are listed below:
    American Journal of Life Sciences
    International Journal of Nutrition and Food Sciences
    International Journal of Economics, Finance and Management Sciences
    Science Journal of Public Health
    American Journal of Modern Physics
    International Journal of Materials Science and Applications
    American Journal of Theoretical and Applied Statistics
    Applied and Computational Mathematics
    American Journal of Nursing Science
    Journal of Food and Nutrition Sciences
    American Journal of Environmental Protection
    International Journal of Energy and Power Engineering
    Science Research
    International Journal of Science, Technology and Society
    Education Journal
    Journal of Plant Sciences
    American Journal of Agriculture and Forestry
    American Journal of Clinical and Experimental Medicine
    International Journal of Language and Linguistics
    American Journal of Health Research
    You can learn more about other journals here:
    http://www.sciencepublishinggroup.com/journal/journallist
    Information Source:http://bit.ly/1RFHp8I

    2015年12月23日星期三

    Share: Crow cameras give a bird’s eye view of tool-making in the wild

    Call it a GoCro. Cameras mounted on the tails of wild New Caledonian crows have caught these renowned tool-makers in the act of creating the hooked foraging implements from plants.
    New Caledonian crows are the only non-human animals to make hooked tools in the wild. Why they do so is something of a mystery. “The answer to that lies most probably in the ecology of the place and the ecology of these birds,” says Christian Rutz at the University of St Andrews, UK.
    Filming their natural behaviour may help us get to the bottom of it.
    Back in 2007, Rutz and colleagues equipped crows with video cameras to film their behaviour in the wild. They were able to transmit live pictures, but the range was short, so they had to follow the birds around and the signal would sometimes cut out.
    Now Rutz and colleagues have followed the behaviour of 10 crows in a new study with a better camera setup. This enabled them to record about an hour of footage for each bird. They found only four of them used tools during the recording sessions.
    It’s unclear whether some crows don’t use tools at all, or if they just didn’t in the time recorded. “I think that’s a very interesting lead for future research,” says Rutz.
    ......
    Read full story from the source: http://bit.ly/1U49sfZ

    2015年12月22日星期二

    A Contrasting Result About the Etiologies of Non-traumatic Coma in A Referral Hospital in Ethiopia

    Toxic and metabolic causes were identified to be the commonest causes of coma in a hospital in a developing country.
    By Ermias Greffie                          From Clinical Medicine Research
    Toxic and metabolic causes were identified to be the commonest causes of coma in a hospital in a developing country. The chance of survival was very low once a patient was admitted in the hospital with any sort of non-traumatic coma. This was the result of a poor medical infrastructure, including ICU care to support these critically ill patients.

    Figure: A comatose patient being treated in the ICU
    In a recent study by Dr. Mohamed A. Mohamed and his team etiologies of coma presenting without a focal neurologic deficit, mainly toxic and metabolic causes were the most common causes of non-traumatic coma, which was in contrast to most of the studies in both developed and interestingly other developing countries, which showed especially stroke to be the most common cause. In this study poisoning and metabolic coma due to organ failure was even more common than the expected infectious causes.
    The mortality rate of this study was in fact the highest among similar studies. Dr. Mohamed continues "It is so unfortunate given the fact that most of these patients had reversible causes of coma. This is most likely due to the lack of resources in developing countries like Ethiopia. This lack of resource was evident by lack of drugs like antidotes for organophosphate and dialysis. This has resulted in higher mortality in our set up since these etiologies of coma are most probably treated very well in developed countries. With the continuous development of the medical care in developing countries, this high mortality of coma may decrease in the future."
    Mohamed highlights "underlying medical illnesses like diabetes, hypertension, CKD and HIV were in fact not uncommon in these patients. Inadequate and/or lack of resource to treatment of these conditions might contribute to the development of conditions like uremia, which are not usually treated in developing countries"
    Finally, the team recommended that hospital service in developing countries should be well equipped to diagnose and treat this life-threatening medical illness.
    Authors:
    Mohamed A. Mohamed, Internist, Department of Internal Medicine, University of Gondar
    Nebiyu Bekele, neurologist, Department of Internal Medicine, University of Gondar
    Ermias Diro, PHD, Internist, Department of Internal Medicine, University of Gondar
    Ermias Shenkutie Greffie, Internist, Department of Internal Medicine, University of Gondar
    Timothy Landers, PHD, school of Nursing, The Ohio state University
    Helen Gebremedhin, Resident, Department of Internal Medicine, University of Gondar
    Murad Mohamed, Resident, Department of Internal Medicine, University of Gondar
    Habtewold Shibiru, Resident, Department of Internal Medicine, University of Gondar
    Omer Abdu, Resident, Department of Internal Medicine, University of Gondar
    Tesfaye Yusuf, Resident, Department of Internal Medicine, University of Gondar 
    Story source:http://bit.ly/1S7zyQH

    2015年12月14日星期一

    Stress Has a Link to Drug Usage Behavior but It Is Determined By the Type of Personality and Coping Strategies Applied

    Drug users perceive more stress in their life that make them vulnerable for such behavior to reduce stress. However this behavior is not the response observed uniformly in every individual.
    By Harish Kumar Sharma Dec. 14, 2015
    Drug users perceive more stress in their life that make them vulnerable for such behavior to reduce stress. However this behavior is not the response observed uniformly in every individual. The personality type and coping strategy are important determinants in this respect. Neuroticism makes drug users to perceive more stress even for trivial problems. Extravert drug users experience excitement through drug using behavior. Openness and conscientiousness similarly exposes the person to initiate this behavior. On other side drug using coping strategy helps to deny the presence of stress. Projection coping style let them to blame others for their problems.Drug users dependence on others get them regress in their response to stress.Similarly they apply isolation and turning against self lesser than non users.
    Dr. Harish Kumar Sharma in his recent paper stated that drug users and non users clearly were having difference in perceiving the stress in their life. Drug users perceive that they are experiencing more stress in their life. Drugs were considered the easy way to get relieve from the stress. Type of personality acts as a catalyst that enhances the drug usage behavior. In the paper, drug users were found more neurotic than non users. It means that they were more anxious, so take even simple problems of life severely stressful. It is possibly responsible for the difference in perception of stress in their life. Dr. Sharma further stated that drug users were more extroverts in personality. Extroverts are excitement seekers, less responsible and poor onmorality. Such personality characteristics increase the possibility of drug using behavior. In paper drug users were also higher on openness, means they were more impulsive, restless, optimistic and aggressive. Interestingly drug users were also found high on conscientiousness. It reflects that drug users plan their behavior more than non users. On all such observations, the personality type was a strong determinant of drug use behavior.
    Dr. Sharma further mentioned that drug users and non users also differ on coping strategies they applied. Denial is the easy way to ignore the presence of stress. So, in paper drug users were found applying denial more than non users. Drug users were found poor in applying intellectual strategies to resolve their stressful situation. Projection means blaming others for one’s problems. In paper, it was found that drug users blame more others for their problems. It was also found that drug users apply regression more than non users. It means they seek other’s help in stressful situation. Turning against self was also applied less by drug users. They criticize themselves very less.
    The paper is truly successful in pointing differences in drug users and non users on perception of stress, personality type and coping strategies in drug users and non users.
    Full story source:http://bit.ly/1Nmsa0C

    2015年12月11日星期五

    Rewilding the great white north


    Take a tour of Pleistocene Park in northeastern Siberia, where Russian ecologist Sergey Zimov and his son Nikita are studying how to rewild the Arctic. Introducing herbivores en masse to Siberia and northern Alaska, they believe, would bring back a lost biome—the mammoth steppe—and prevent permafrost from melting and releasing billions of tons of greenhouse gases into the atmosphere. 

    Story source:http://bit.ly/1QcowK5

    Serological Study of African Swine Fever in Traditional Pig Farms in Chad

    Authors: Bidjeh Kebkiba, Ban-Bo Bebanto Antipas, Nadjilem Digamtar, Tchari Doungous, Golwa Dinza, Maho Adnelie jeanne
    To cite this article:
    Bidjeh Kebkiba, Ban-Bo Bebanto Antipas, Nadjilem Digamtar, Tchari Doungous, Golwa Dinza, Maho Adnelie jeanne. Serological Study of African Swine Fever in Traditional Pig Farms in Chad. Animal and Veterinary Sciences. Vol. 3, No. 6, 2015, pp. 149-152. doi: 10.11648/j.avs.20150306.11

    Abstract: African swine fever (ASF) is an acute, highly contagious animal disease, affecting pigs and wild boars, warthogs, bush pigs and ticks(Ornithodoros), who are the likely vector. Its agent is a large double-stranded DNA virus of the genus Asfarvirus, the only representative of Asfarviridae family. Described for the first time in 1921 in East Africa (Kenya) by Montgomery, ASF has settled in the Iberian Peninsula. Since 1960, ASF has spread considerably in sub-Saharan Africa where it is endemic. ASF has emerged in Chad for the first time in October 2010 in the city of Bongor, capital of the region of Mayo-Kebbi-East, which is located about 250 km from Ndjamena. The city borders with northern Cameroon where the disease was reported in May 2010. The disease was introduced into the country from the far north in the Department of Mayo Danaye, Cameroon. Since 2010-2011, suspicions have become rare or no observed. The purpose of this study is to demonstrate the presence or absence of ASF virus circulation in Chad in order to clarify the epidemiological situation of the disease in the country. To do this, a serological survey was conducted on different sites. The choice of these sites was based on the history of the disease in the country, where there has actually outbreaks of disease and on stamping out importance achieved during ASF episode of 2010-2011. A total of 275 Sera and 17 bloods on filter papers were collected and analyzed by indirect ELISA for antibodies directed to ASF virus. Out of 275 sera analyzed, 13 (4.72%) have had antibodies directed to ASF virus. No sample taken from filter papers was positive vis-à-vis ASF virus. The study identified 4.72% animals carrying ASF virus. Given these results, we can say that ASF virus still circulates in some areas of the country. The areas where sera were positive should be admitted to the extent control of ASF by implementing the strategy of stamping out. It would also be preferable to undertake another large-scale serological study coupled with active surveillance to show that indeed there is no circulation of ASF virus in the country.

    Keywords: Pigs, ELISA, Serology, African Swine Fever, Antibodies, Viruses, Serum
    Read full research paper in SciencePG:http://bit.ly/1W0rmAj