WorldWideScience

Sample records for hunting dangerous algae

  1. Differential wolf-pack-size persistence and the role of risk when hunting dangerous prey

    Science.gov (United States)

    Barber-Meyer, Shannon M.; Mech, L. David; Newton, Wesley E.; Borg, Bridget

    2016-01-01

    Risk to predators hunting dangerous prey is an emerging area of research and could account for possible persistent differences in gray wolf (Canis lupus) pack sizes. We documented significant differences in long-term wolf-pack-size averages and variation in the Superior National Forest (SNF), Denali National Park and Preserve, Yellowstone National Park, and Yukon, Canada (paccount for possible persistent differences in gray wolf (Canis lupus) pack sizes. We documented significant differences in long-term wolf-pack-size averages and variation in the Superior National Forest (SNF), Denali National Park and Preserve, Yellowstone National Park, and Yukon, Canada (p<0.01). The SNF differences could be related to the wolves’ risk when hunting primary prey, for those packs (N=3) hunting moose (Alces americanus) were significantly larger than those (N=10) hunting white-tailed deer (Odocoileus virginianus) (F1,8=16.50, p=0.004). Our data support the hypothesis that differential pack-size persistence may be perpetuated by differences in primary prey riskiness to wolves, and we highlight two important extensions of this idea: (1) the potential for wolves to provision and defend injured packmates from other wolves and (2) the importance of less-risky, buffer prey to pack-size persistence and year-to-year variation.

  2. Hunting Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for administration of hunting activity and for development, maintenance, and enforcement of regulations and guidelines on Tamarac...

  3. Hunting Jobs

    Institute of Scientific and Technical Information of China (English)

    Sun Jishan

    2006-01-01

    @@ 4.13 million college graduates areexpected to join the job-hunting army,putting additional pressure on China'sclimbing jobless rate. Some peoplemight blame the difficulties graduatesface in finding jobs on the expandedenrolment policy, which was introducedin 1999.

  4. Hunting Stories.

    Science.gov (United States)

    Johnson, Frank

    Eleven stories describe traditional practices and true adventures of the Tlingit hunters of Southeast Alaska. The stories are accompanied by learning activities and discussion questions for students and are arranged under the headings of bear, mountain goat and deer, and seal and sea lion. Topics include hunting weapons and strategies, bravery,…

  5. TREASURE HUNT

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    A Chinese NGO aims to develop a model for recovering Chinese cultural treasures overseas On May 9, the first group of Chinese collectors taking part in an "Overseas Treasure Hunting Activity" arrived back in Beijing after a one-week trip to Japan. On their visit to Tokyo, Yokohama, Nagoya, Kyoto and Osaka, they found about 20 rare Chinese cultural relics of significant value. Since the Opium War in 1840, large quantities of Chinese treasures have been taken abroad. According to statistics from the China ...

  6. Contesting danger

    DEFF Research Database (Denmark)

    Heathershaw, John; Megoran, Nick

    2011-01-01

    and subsequent considerations of the region in terms of the war on terror. It considers several examples of this discourse of danger including the popular US TV drama about presidential politics, The West Wing, the policy texts of ‘Washingtonian security analysis’ and accounts of danger, insecurity and urban...

  7. Contesting danger

    DEFF Research Database (Denmark)

    Heathershaw, John; Megoran, Nick

    2011-01-01

    and subsequent considerations of the region in terms of the war on terror. It considers several examples of this discourse of danger including the popular US TV drama about presidential politics, The West Wing, the policy texts of ‘Washingtonian security analysis’ and accounts of danger, insecurity and urban...... violence in the Ferghana Valley. It is argued that popular policy and academic texts are relatively consistent across the three dimensions of endangerment. This argument is demonstrated through a discussion of how policy-making and practice is informed by this discourse of danger and of how the discourse...... of danger is contested within the region. The example of urban violence in Osh, Kyrgyzstan and Jalalabad, Afghanistan in 2010 demonstrates how opportunities to mitigate conflict may have been lost due to the distortions of this discourse of danger. It concludes by raising the challenge to policy...

  8. Attitudes towards recreational hunting

    DEFF Research Database (Denmark)

    Gamborg, Christian; Jensen, Frank Søndergaard

    2017-01-01

    What is the attitude of the general public towards hunting? As a recreational activity, hunting stands apart from other forms of outdoor recreation like birdwatching in that it involves the pursuit and killing of wild animals. Today, it is in a tight spot. It has been criticized from animal ethics......, hunting organized as a group hunt, and single day leases of hunting grounds. Respondents with a “mutualist” wildlife value orientation had the most negative attitude towards hunting (39%), “distanced” respondents were the most indifferent (44%), and “utilitarians” were the most positive (61%). Assessing...

  9. [Dangerous aquaria].

    Science.gov (United States)

    Satora, Leszek; Morawska, Jowanka; Szkolnicka, Beata; Mitrus, Małgorzata; Targosz, Dorota; Gwiazdowski, Andrzej

    2005-01-01

    World trends for a home breeding of exotic freshwater and marine fishes did not miss Poland. There are almost all species of aquarium fishes available in Polish pet shops, but there is not enough information about threat given to customers. In some fish, there are masses of one-cell glands, mainly serous, in the proximity of the spines. In others, those one-cell glands may be grouped in larger aggregates of cells called venom glands, that may form organs resembling multicellular glands of terrestrial animals. They are usually located around the spines or hard rays of the fins. Even if covered with a connective tissue sheath, the aggregates of the venom cells do not have any common outlet; they are not, therefore, proper multicellular glands. The venom glands of the catfish are covered with a thin sheath and they release their contents when the fin ray is pressed. Spines are derived from fin rays. When the spine penetrates the body of its prey, it presses its base against the cells, squashes them and squeezes the venomous contents into the wound. Catfish, lionfish and stonefish have the venom glands producing secretion which could be dangerous. The eels and morays blood is also dangerous, as well as slime of reduced squamae. Poison information centers noted several cases of fishes' stings in Poland.

  10. Looming Danger

    Institute of Scientific and Technical Information of China (English)

    WangXuewen

    2003-01-01

    Is all well with the roaring Chinese economy now that severe acute respiratory syndrome has almost vanished? For beginners,SARS is still a looming danger, as Chinese leaders and medical professionals relentlessly try tobring across to a wider, more relaxed post-SARS public. Meanwhile, economistsand analysts struggle to make sense of various news, facts and figures from the frontlines of trade and industry. Early on, while acknowledging that SARS had some negative impact on the development of some industries and regions,President and Party General Secretary Hu Jintao acted as true leader. He saidthat the people and country would triumph over “these temporary difficulties”and would finally win the war against this nasty disease.

  11. Hunting for Ecological Learning

    Science.gov (United States)

    Pontius, Joel B.; Greenwood, David A.; Ryan, Jessica L.; Greenwood, Eli A.

    2013-01-01

    Considering (a) the many potential connections between hunting, culture, and environmental thought, (b) how much hunters have contributed to the conservation movement and to the protection of a viable land base, and (c) renewed interest in hunting as part of the wider movement toward eating local, non-industrialized food, we seek to bring hunting…

  12. HUNT: Scavenger Hunt with Augmented Reality

    Directory of Open Access Journals (Sweden)

    Yan Lu

    2015-04-01

    Full Text Available This project shows a creative approach to the familiar scavenger hunt game. It involved the implementation of an iPhone application, HUNT, with Augmented Reality (AR capability for the users to play the game as well as an administrative website that game organizers can use to create and make available games for users to play. Using the HUNT mobile app, users will first make a selection from a list of games, and they will then be shown a list of objects that they must seek. Once the user finds a correct object and scans it with the built-in camera on the smartphone, the application will attempt to verify if it is the correct object and then display associated multi-media AR content that may include images and videos overlaid on top of real world views. HUNT not only provides entertaining activities within an environment that players can explore, but the AR contents can serve as an educational tool. The project is designed to increase user involvement by using a familiar and enjoyable game as a basis and adding an educational dimension by incorporating AR technology and engaging and interactive multimedia to provide users with facts about the objects that they have located

  13. 捕猎%HUNTING

    Institute of Scientific and Technical Information of China (English)

    杨帆(译)

    2012-01-01

    Do you think it' s right to hunt wild animals? Why? Why not? What are the different reasons modern humans hunt? Have you ever been hunting? If so, what was it like? If not, what do you think it would be like? Do you think it' s more ethical to kill animals for meat yourself rather than buying pre-packaged meat from a shop?%在过去。捕猎是很常见的事。因为这是人类的求生手段。如今。捕猎已成为一种休闲运动项目,对此。有人支持。有人反对。你是怎么看的呢?欢迎来信与我们分享。

  14. TOLOSA HUNT SYNDROME

    Directory of Open Access Journals (Sweden)

    Padmini

    2013-03-01

    Full Text Available ABSTRACT: Tolosa-Hunt syndrome (THS is a painful ophthalmoplegi a caused by nonspecific inflammation of the cavernous sinus or superior orbi tal fissure. The syndrome consists of periorbital or hemicranial pain, combined with ipsilat eral ocular motor nerve palsies, oculosympathetic paralysis, and sensory loss in the distribution of the ophthalmic and occasionally the maxillary division of the trigemin al nerve. Although they have relapsing and remitting course, they respond promptly to systemic co rticosteroid therapy. The diagnostic eponym Tolosa-Hunt syndrome has been applied to these patients and it is this entity which forms the basis of this review

  15. Algae Resources

    Energy Technology Data Exchange (ETDEWEB)

    None

    2016-06-01

    Algae are highly efficient at producing biomass, and they can be found all over the planet. Many use sunlight and nutrients to create biomass, which contain key components—including lipids, proteins, and carbohydrates— that can be converted and upgraded to a variety of biofuels and products. A functional algal biofuels production system requires resources such as suitable land and climate, sustainable management of water resources, a supplemental carbon dioxide (CO2) supply, and other nutrients (e.g., nitrogen and phosphorus). Algae can be an attractive feedstock for many locations in the United States because their diversity allows for highpotential biomass yields in a variety of climates and environments. Depending on the strain, algae can grow by using fresh, saline, or brackish water from surface water sources, groundwater, or seawater. Additionally, they can grow in water from second-use sources such as treated industrial wastewater; municipal, agricultural, or aquaculture wastewater; or produced water generated from oil and gas drilling operations.

  16. The hunt for axions

    Energy Technology Data Exchange (ETDEWEB)

    Ringwald, Andreas

    2015-06-15

    Many theoretically well-motivated extensions of the Standard Model of particle physics predict the existence of the axion and further ultralight axion-like particles. They may constitute the mysterious dark matter in the universe and solve some puzzles in stellar and high-energy astrophysics. There are new, relatively small experiments around the globe, which started to hunt for these elusive particles and complement the accelerator based search for physics beyond the Standard Model.

  17. Consumer Profile Of Hunting Tourism

    Directory of Open Access Journals (Sweden)

    Diana Marin

    2015-10-01

    Full Text Available Knowing the profileof hunting tourism consumers is particularly useful to the administrators ofhunting funds or natural parks, and of travel agencies that develop huntingtourism products for the hunting of large game for trophy, of small game asrecreational activity and also for the experienced hunting tourists who loveadventure and hunting with traditional weapons. The motivation for huntingconsists in the existing fauna in a certain area, but there are also cultural,historical reasons or spending time in the middle of nature. Consumers ofhunting tourism have a wide range of ages: hunting tourists prefer watching theanimals in their natural habitat and are less adventure-oriented, unlike trophyhunting tourists who are self-contended, travel much and wish to know thehistory, the culture and the behaviour of animals in protected areas. Theyprefer special accommodation and transport conditions and rely on largeincomes: they wish to get the rarest trophies to display back home as a symbolof their hunting skills and courage

  18. Danger signals in stroke.

    Science.gov (United States)

    Gelderblom, Mathias; Sobey, Christopher G; Kleinschnitz, Christoph; Magnus, Tim

    2015-11-01

    Danger molecules are the first signals released from dying tissue after stroke. These danger signals bind to receptors on immune cells that will result in their activation and the release of inflammatory and neurotoxic mediators, resulting in amplification of the immune response and subsequent enlargement of the damaged brain volume. The release of danger signals is a central event that leads to a multitude of signals and cascades in the affected and neighbouring tissue, therefore providing a potential target for therapy.

  19. WILD PIG HUNTING IN PETUNGKRIONO

    Directory of Open Access Journals (Sweden)

    Pujo Semedi

    2010-02-01

    Full Text Available Anthropologists have been studying hunting from the economic, ecological, and symbolical perspectives. The third perspective has been used to comprehend the hunting activities among the farmers of Petungkriono who have used hunting to show masculinity. Further investigation has revealed that the arena is created as a compensation for the fragile position of the local male inhabitants in the household social economic condition as connected to the matrilinear land inheritance system.

  20. ORR Deer Hunt Monitoring Program

    Energy Technology Data Exchange (ETDEWEB)

    Scofield, P.A.; Teasley, N.A.

    1999-09-01

    The primary purpose for the initiation of deer hunts on the Oak Ridge Reservation (ORR) was deer population control to reduce collisions with vehicles and maintain a healthy herd and habitat. As of 1997, thirteen annual deer hunts have been conducted on the ORR. The deer hunt monitoring program (DHMP) has two components -- a field screening monitoring program and a confirmatory laboratory analysis program of both retained and randomly selected released deer samples.

  1. Hunting plan amendment: Choctaw National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This amendment allows the hunting plan for Choctaw National Wildlife Refuge to add raccoon and opossum hunting to the existing small game hunting program.

  2. The Hunt Is Not On

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    China’s ban on trophy hunting remains despite calls for a relaxation WDulan,a small town in northwest China’s Qinghai Province, would have been an unfamiliar name to most Chinese, if not for the recent high-profile debate regarding the possible relaxation of a six-year ban on hunting in the vicinity of the town.

  3. SINDROM RAMSAY HUNT

    Directory of Open Access Journals (Sweden)

    Ni Luh Indri Astari

    2015-07-01

    Full Text Available Sindrom Ramsay Hunt atau herpes  zoster  otikus merupakan neuropati akut  saraf  fasialis perifermengenai daun telinga, liang telinga dan atau mukosa orofaring. Terjadinya infeksi pada gangliongenikulatum oleh human herpes virus 3 atau varicella-zoster virus. Insiden sindrom Ramsay Huntsekitar 10-15% dari seluruh kasus paralisis  fasialis akut. Dilaporkan satu kasus sindrom RamsayHunt dengan paresis nervus fasialis sinistra lesi setinggi ganglion genikulatum, saat datang kekuatanmotorik 20% dengan House Brackmann IV. Penderita diberi terapi metilprednisolon, mekobalamin,betahistin mesilat, flunarizin. Bagian kulit kelamin memberikan terapi asam mefenamat, kompresNacl  0,9%,  dan  gentamisin  salep. Fisioterapi  oleh  bagian  rehabilitasi medis. Terapi  bagian Mataantara  lain  tarsoterapi  temporer,  gentamisin  salep mata,  dan  cendo  lyters  tetes mata.  Setelahmendapatkan terapi selama hampir 2 bulan, didapatkan perbaikan dengan kekuatan motorik 76%dengan House Brackmann II. [MEDICINA 2014;45:199-203].

  4. HUNTing the Overlap

    Energy Technology Data Exchange (ETDEWEB)

    Iancu, Costin; Parry, Husbands; Hargrove, Paul

    2005-07-08

    Hiding communication latency is an important optimization for parallel programs. Programmers or compilers achieve this by using non-blocking communication primitives and overlapping communication with computation or other communication operations. Using non-blocking communication raises two issues: performance and programmability. In terms of performance, optimizers need to find a good communication schedule and are sometimes constrained by lack of full application knowledge. In terms of programmability, efficiently managing non-blocking communication can prove cumbersome for complex applications. In this paper we present the design principles of HUNT, a runtime system designed to search and exploit some of the available overlap present at execution time in UPC programs. Using virtual memory support, our runtime implements demand-driven synchronization for data involved in communication operations. It also employs message decomposition and scheduling heuristics to transparently improve the non-blocking behavior of applications. We provide a user level implementation of HUNT on a variety of modern high performance computing systems. Results indicate that our approach is successful in finding some of the overlap available at execution time. While system and application characteristics influence performance, perhaps the determining factor is the time taken by the CPU to execute a signal handler. Demand driven synchronization at execution time eliminates the need for the explicit management of non-blocking communication. Besides increasing programmer productivity, this feature also simplifies compiler analysis for communication optimizations.

  5. Bacterial danger sensing.

    Science.gov (United States)

    LeRoux, Michele; Peterson, S Brook; Mougous, Joseph D

    2015-11-20

    Here we propose that bacteria detect and respond to threats posed by other bacteria via an innate immune-like process that we term danger sensing. We find support for this contention by reexamining existing literature from the perspective that intermicrobial antagonism, not opportunistic pathogenesis, is the major evolutionary force shaping the defensive behaviors of most bacteria. We conclude that many bacteria possess danger sensing pathways composed of a danger signal receptor and corresponding signal transduction mechanism that regulate pathways important for survival in the presence of the perceived competitor.

  6. Colored Contact Lens Dangers

    Medline Plus

    Full Text Available ... Patient Stories Español Eye Health / News Halloween Hazard: The Hidden Dangers of Buying Decorative Contact Lenses Without ... been properly fitted by an eye care professional, the lenses stuck to my eye like a suction ...

  7. Colored Contact Lens Dangers

    Science.gov (United States)

    ... Prevention News Ask an Ophthalmologist Patient Stories Español Eye Health / News Halloween Hazard: The Hidden Dangers of Buying Decorative Contact Lenses Without a Prescription Sep. 26, 2013 It started ...

  8. Second Hand Smoke: Danger

    Science.gov (United States)

    ... What's this? Submit Button Past Emails Second Hand Smoke: Danger! Recommend on Facebook Tweet Share Compartir Make ... the United States are still exposed to secondhand smoke, even though cigarette smoking rates are dropping and ...

  9. Colored Contact Lens Dangers

    Medline Plus

    Full Text Available ... Hidden Dangers of Buying Decorative Contact Lenses Without a Prescription Leer en Español: Peligros asociados con los ... contacto de color Sep. 26, 2013 It started as an impulsive buy from a souvenir shop, but ...

  10. Colored Contact Lens Dangers

    Medline Plus

    Full Text Available ... Patient Stories Español Eye Health / News Halloween Hazard: The Hidden Dangers of Buying Decorative Contact Lenses Without ... been properly fitted by an eye care professional, the lenses stuck to my eye like a suction ...

  11. Semantic Gaps Are Dangerous

    DEFF Research Database (Denmark)

    Ejstrup, Michael; le Fevre Jakobsen, Bjarne

    2014-01-01

    . That seems not to be possible. We have to use words, metaphors and comparisons containing adverse connotations, and this situation creates ways of using unpolite language and tend to create dangerous relations where specialy language creates problems that could be avoided if we had better language tools...... at hand. But we have not these tools of communication, and we are in a situation today where media and specially digital and social media, supported by new possibilities of migration, create dangerous situations....

  12. 77 FR 29515 - Migratory Bird Hunting; Supplemental Proposals for Migratory Game Bird Hunting Regulations for...

    Science.gov (United States)

    2012-05-17

    ... Bird Hunting; Supplemental Proposals for Migratory Game Bird Hunting Regulations for the 2012-13... RIN 1018-AX97 Migratory Bird Hunting; Supplemental Proposals for Migratory Game Bird Hunting... in an earlier document to establish annual hunting regulations for certain migratory game birds...

  13. Nonlinear effects of group size on the success of wolves hunting elk

    Science.gov (United States)

    MacNulty, Daniel R.; Smith, Douglas W.; Mech, L. David; Vucetich, John A.; Packer, Craig

    2012-01-01

    Despite the popular view that social predators live in groups because group hunting facilitates prey capture, the apparent tendency for hunting success to peak at small group sizes suggests that the formation of large groups is unrelated to prey capture. Few empirical studies, however, have tested for nonlinear relationships between hunting success and group size, and none have demonstrated why success trails off after peaking. Here, we use a unique dataset of observations of individually known wolves (Canis lupus) hunting elk (Cervus elaphus) in Yellowstone National Park to show that the relationship between success and group size is indeed nonlinear and that individuals withholding effort (free riding) is why success does not increase across large group sizes. Beyond 4 wolves, hunting success leveled off, and individual performance (a measure of effort) decreased for reasons unrelated to interference from inept hunters, individual age, or size. But performance did drop faster among wolves with an incentive to hold back, i.e., nonbreeders with no dependent offspring, those performing dangerous predatory tasks, i.e., grabbing and restraining prey, and those in groups of proficient hunters. These results suggest that decreasing performance was free riding and that was why success leveled off in groups with >4 wolves that had superficially appeared to be cooperating. This is the first direct evidence that nonlinear trends in group hunting success reflect a switch from cooperation to free riding. It also highlights how hunting success per se is unlikely to promote formation and maintenance of large groups.

  14. Game animals & hunting : Law enforcement

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This is a summary of hunting activities, game mammal surveys, and law enforcement on Neal Smith National Wildlife Refuge between 1992 and 2009. For each year, a list...

  15. Hunting Plan: Amendment to conduct Becoming an Outdoors Woman Feral Hog Hunt

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This is the hog hunt plan for the Becoming an Outdoors Woman (BOW) program on St. Vincent NWR. The objective of the BOW hunt is to provide a quality hunting...

  16. Semantic Gaps Are Dangerous

    DEFF Research Database (Denmark)

    Ejstrup, Michael; le Fevre Jakobsen, Bjarne

    Semantic gaps are dangerous Language adapts to the environment where it serves as a tool to communication. Language is a social agreement, and we all have to stick to both grammaticalized and non-grammaticalized rules in order to pass information about the world around us. As such language develops...... unpolite language and tend to create dangerous relations where specialy language creates problems and trouble that could be avoided if we had better language tools at hand. But we have not these tools of communication, and we are in a situation today where media and specially digital and social media......, supported by new possibilities of migration, create dangerous situations. How can we avoid these accidental gaps in language and specially the gaps in semantic and metaphoric tools. Do we have to keep silent and stop discusing certain isues, or do we have other ways to get acces to sufficient language tools...

  17. George's cosmic treasure hunt

    CERN Document Server

    Hawking, Lucy; Parsons, Gary

    2009-01-01

    George and Annie explore the galaxy in this cosmic adventure from Stephen Hawking and Lucy Hawking, complete with essays from Professor Hawking about the latest in space travel. George is heartbroken when he learns that his friend Annie and her father are moving to the US. Eric has a new job working for the space program, looking for signs of life in the Universe. Eric leaves George with a gift—a book called The User’s Guide to the Universe. But Annie and Eric haven’t been gone for very long when Annie believes that she is being contacted by aliens, who have a terrible warning for her. George joins her in the US to help her with her quest—and before he knows it, he, Annie, Cosmos, and Annie’s annoying cousin Emmett have been swept up in a cosmic treasure hunt, spanning the whole galaxy and beyond. Lucy Hawking's own experiences in zero-gravity flight and interviews with astronauts at Cape Kennedy and the Johnson Space Center lend the book a sense of realism and excitement that is sure to fire up ima...

  18. Colored Contact Lens Dangers

    Medline Plus

    Full Text Available ... Tips & Prevention News Ask an Ophthalmologist Patient Stories Español Eye Health / News Halloween Hazard: The Hidden Dangers ... entire eye had to be rem… Leer en Español: Peligros asociados con los lentes de contacto de ...

  19. A Danger to Ourselves

    Science.gov (United States)

    Barbieri, Richard

    2013-01-01

    In this article Richard Barbieri asserts that the biggest danger to our own safety and well-being, and that of our children, comes not from adult predators, environmental hazards, or the class bully, but from traits common to us all. The enemy is us, and not least because we too often jump to such strategies as clobbering. Writers from such varied…

  20. Colored Contact Lens Dangers

    Medline Plus

    Full Text Available ... Tips & Prevention News Ask an Ophthalmologist Patient Stories Español Eye Health / News Halloween Hazard: The Hidden Dangers ... Decorative Contact Lenses Without a Prescription Leer en Español: Peligros asociados con los lentes de contacto de ...

  1. Dangerous Raw Oysters

    Centers for Disease Control (CDC) Podcasts

    2013-08-05

    Dr. Duc Vugia, chief of the Infectious Diseases Branch at the California Department of Public Health, discusses the dangers of eating raw oysters.  Created: 8/5/2013 by National Center for Emerging and Zoonotic Infectious Diseases (NCEZID).   Date Released: 8/7/2013.

  2. Colored Contact Lens Dangers

    Medline Plus

    Full Text Available ... Tips & Prevention News Ask an Ophthalmologist Patient Stories Español Eye Health / News Halloween Hazard: The Hidden Dangers ... for 35 years, according the m… Leer en Español: Peligros asociados con los lentes de contacto de ...

  3. Galaxy 'Hunting' Made Easy

    Science.gov (United States)

    2007-09-01

    Galaxies found under the Glare of Cosmic Flashlights Astronomers using ESO's Very Large Telescope have discovered in a single pass about a dozen otherwise invisible galaxies halfway across the Universe. The discovery, based on a technique that exploits a first-class instrument, represents a major breakthrough in the field of galaxy 'hunting'. ESO PR Photo 40a/07 ESO PR Photo 40a/07 Newly Found Galaxies (SINFONI/VLT) The team of astronomers led by Nicolas Bouché have used quasars to find these galaxies. Quasars are very distant objects of extreme brilliance, which are used as cosmic beacons that reveal galaxies lying between the quasar and us. The galaxy's presence is revealed by a 'dip' in the spectrum of the quasar - caused by the absorption of light at a specific wavelength. The team used huge catalogues of quasars, the so-called SDSS and 2QZ catalogues, to select quasars with dips. The next step was then to observe the patches of the sky around these quasars in search for the foreground galaxies from the time the Universe was about 6 billion years old, almost half of its current age. "The difficulty in actually spotting and seeing these galaxies stems from the fact that the glare of the quasar is too strong compared to the dim light of the galaxy," says Bouché. This is where observations taken with SINFONI on ESO's VLT made the difference. SINFONI is an infrared 'integral field spectrometer' that simultaneously delivers very sharp images and highly resolved colour information (spectra) of an object on the sky. ESO PR Photo 32e/07 ESO PR Photo 40b/07 Chasing 'Hidden' Galaxies (Artist's Impression) With this special technique, which untangles the light of the galaxy from the quasar light, the team detected 14 galaxies out of the 20 pre-selected quasar patches of sky, a hefty 70% success rate. "This high detection rate alone is a very exciting result," says Bouché. "But, these are not just ordinary galaxies: they are most notable ones, actively forming a lot of

  4. Magnetic separation of algae

    Energy Technology Data Exchange (ETDEWEB)

    Nath, Pulak; Twary, Scott N.

    2016-04-26

    Described herein are methods and systems for harvesting, collecting, separating and/or dewatering algae using iron based salts combined with a magnetic field gradient to separate algae from an aqueous solution.

  5. Parker River NWR : Revised Hunting Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This document contains revisions to the 1978 Parker River National Wildlife Refuge Hunt Management Plan. Refuge hunters must obtain a permit to use the hunting...

  6. Waterfowl Hunting Plan : Mingo National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This Waterfowl Hunting Plan for Mingo NWR summarizes how the Waterfowl Hunting Program relates to Refuge objectives, outlines Program policies and control, and lists...

  7. 76 FR 48693 - Migratory Bird Hunting; Proposed Migratory Bird Hunting Regulations on Certain Federal Indian...

    Science.gov (United States)

    2011-08-08

    ... August 8, 2011 Part V Department of the Interior Fish and Wildlife Service 50 CFR Part 20 Migratory Bird Hunting; Proposed Migratory Bird Hunting Regulations on Certain Federal Indian Reservations and Ceded... RIN 1018-AX34 Migratory Bird Hunting; Proposed Migratory Bird Hunting Regulations on Certain...

  8. 76 FR 36508 - Migratory Bird Hunting; Supplemental Proposals for Migratory Game Bird Hunting Regulations for...

    Science.gov (United States)

    2011-06-22

    ... Fish and Wildlife Service 50 CFR Part 20 RIN 1018-AX34 Migratory Bird Hunting; Supplemental Proposals for Migratory Game Bird Hunting Regulations for the 2011-12 Hunting Season; Notice of Meetings AGENCY... regulations for certain migratory game birds for the 2011-12 hunting season. This supplement to the...

  9. 75 FR 53774 - Migratory Bird Hunting; Migratory Bird Hunting Regulations on Certain Federal Indian Reservations...

    Science.gov (United States)

    2010-09-01

    ... Wildlife Service 50 CFR Part 20 Migratory Bird Hunting; Migratory Bird Hunting Regulations on Certain...-1231-9BPP-L2] RIN 1018-AX06 Migratory Bird Hunting; Migratory Bird Hunting Regulations on Certain..., Interior. ACTION: Final rule. SUMMARY: This rule prescribes special early-season migratory bird...

  10. 76 FR 54051 - Migratory Bird Hunting; Final Frameworks for Early-Season Migratory Bird Hunting Regulations

    Science.gov (United States)

    2011-08-30

    ... Bird Hunting; Final Frameworks for Early-Season Migratory Bird Hunting Regulations; Final Rule #0;#0... OF THE INTERIOR Fish and Wildlife Service 50 CFR Part 20 RIN 1018-AX34 Migratory Bird Hunting; Final Frameworks for Early-Season Migratory Bird Hunting Regulations AGENCY: Fish and Wildlife Service,...

  11. 75 FR 47681 - Migratory Bird Hunting; Proposed Migratory Bird Hunting Regulations on Certain Federal Indian...

    Science.gov (United States)

    2010-08-06

    ... Interior Fish and Wildlife Service 50 CFR Part 20 Migratory Bird Hunting; Proposed Migratory Bird Hunting... INTERIOR Fish and Wildlife Service 50 CFR Part 20 RIN 1018-AX06 Migratory Bird Hunting; Proposed Migratory Bird Hunting Regulations on Certain Federal Indian Reservations and Ceded Lands for the 2010-11...

  12. 78 FR 52657 - Migratory Bird Hunting; Final Frameworks for Early-Season Migratory Bird Hunting Regulations

    Science.gov (United States)

    2013-08-23

    ... Bird Hunting; Final Frameworks for Early Season Migratory Bird Hunting Regulations; Final Rule #0;#0... OF THE INTERIOR Fish and Wildlife Service 50 CFR Part 20 RIN 1018-AY87 Migratory Bird Hunting; Final Frameworks for Early-Season Migratory Bird Hunting Regulations AGENCY: Fish and Wildlife Service,...

  13. Trauma is Danger

    Science.gov (United States)

    2011-01-01

    to treatment . Further, identifying which patients are most likely to develop severe SIRS after injury may allow for early intervention. Our current...significant danger signal to the immune system. Cell Stress Chaperones 2003, 8:272-286. 35. Martinon F, Petrilli V, Mayor A, Tardivel A, Tschopp J: Gout ...understanding of gout . Arthritis Res Ther 2008, 10:221. 37. Hawkins PN, Lachmann HJ, Aganna E, McDermott MF: Spectrum of clinical features in Muckle-Wells

  14. La mesure du danger

    CERN Document Server

    Manceron, Vanessa; Revet, Sandrine

    2014-01-01

    La mesure du danger permet d’explorer des dangers de nature aussi diverse que la délinquance, la pollution, l’écueil maritime, la maladie ou l’attaque sorcellaire, l’extinction d’espèces animales ou végétales, voire de la Planète tout entière. Au croisement de la sociologie, de l’anthropologie et de l’histoire, les différents articles analysent les pratiques concrètes de mesure pour tenter de comprendre ce qui se produit au cours de l’opération d’évaluation du danger sans préjuger de la nature de celui-ci. L’anthropologie a contribué à la réflexion sur l’infortune en s’intéressant aux temporalités de l’après : maladies, catastrophes, pandémies, etc. et en cherchant à rendre compte de l’expérience des victimes, de leur vie ordinaire bouleversée, de la recomposition du quotidien. Elle s’intéresse aussi aux autres types de mesures, les savoirs incorporés, qui reposent sur l’odorat, la vue ou le toucher et ceux qui ressortent d’une épistémologie « non ...

  15. Banning Trophy Hunting Will Exacerbate Biodiversity Loss.

    Science.gov (United States)

    Di Minin, Enrico; Leader-Williams, Nigel; Bradshaw, Corey J A

    2016-02-01

    International pressure to ban trophy hunting is increasing. However, we argue that trophy hunting can be an important conservation tool, provided it can be done in a controlled manner to benefit biodiversity conservation and local people. Where political and governance structures are adequate, trophy hunting can help address the ongoing loss of species.

  16. Should China Allow Game Hunting?

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    Public opinion is having an increasing impact on decision-making in China, as witnessed last month when the State Forestry Administration announced it was postponing plans to auction the first ever hunting licenses in the country's history. This move, brought about by a backlash in the media and online forums, prompted officials to disclose more details to justify

  17. The Great Bug Hunt 2011

    Science.gov (United States)

    Dixon-Watmough, Rebecca

    2011-01-01

    The Association For Science Education's "schoolscience.co.uk Great Bug Hunt 2011," in association with Martin Rapley and Gatekeeper Educational, has been a resounding success--not only because it fits into the science curriculum so neatly, but also because of the passion it evoked in the children who took part. This year's entries were…

  18. Exoplanets: The Hunt Continues!

    Science.gov (United States)

    2001-04-01

    Swiss Telescope at La Silla Very Successful Summary The intensive and exciting hunt for planets around other stars ( "exoplanets" ) is continuing with great success in both hemispheres. Today, an international team of astronomers from the Geneva Observatory and other research institutes [1] is announcing the discovery of no less than eleven new, planetary companions to solar-type stars, HD 8574, HD 28185, HD 50554, HD 74156, HD 80606, HD 82943, HD 106252, HD 141937, HD 178911B, HD 141937, among which two new multi-planet systems . The masses of these new objects range from slightly less than to about 10 times the mass of the planet Jupiter [2]. The new detections are based on measured velocity changes of the stars [3], performed with the CORALIE spectrometer on the Swiss 1.2-m Leonard Euler telescope at the ESO La Silla Observatory , as well as with instruments on telescopes at the Haute-Provence Observatory and on the Keck telescopes on Mauna Kea (Hawaii, USA). Some of the new planets are unusual: * a two-planet system (around the star HD 82943) in which one orbital period is nearly exactly twice as long as the other - cases like this (refered to as "orbital resonance") are well known in our own solar system; * another two-planet system (HD 74156), with a Jupiter-like planet and a more massive planet further out; * a planet with the most elongated orbit detected so far (HD 80606), moving between 5 and 127 million kilometers from the central star; * a giant planet moving in an orbit around its Sun-like central star that is very similar to the one of the Earth and whose potential satellites (in theory, at least) might be "habitable". At this moment, there are 63 know exoplanet candidates with minimum masses below 10 Jupiter masses, and 67 known objects with minimum masses below 17 Jupiter masses. The present team of astronomers has detected about half of these. PR Photo 13a/01 : Radial-velocity measurements of HD 82943, a two-planet system . PR Photo 13b/01 : Radial

  19. Dangers of peace journalism

    Directory of Open Access Journals (Sweden)

    Wilhelm Kempf

    2016-10-01

    Full Text Available The sense of mission shared by some peace journalists is a dangerous attitude. All journalists can do to give peace a chance is to serve as mediators, helping conflict parties overcome the competitive misperceptions and societal beliefs that fuel conflict. If peace journalists try to promote and impose their own solutions, however, frustration is inevitable and will finally result in the search for an evildoer who can be made responsible. Thus by involving themselves in conflicts, journalists can become unintentional agents of conflict escalation.

  20. Final Environmental Assessment Proposed Opening of Bogue Chitto National Wildlife Refuge to Upland Game Hunting, Migratory Waterfowl Hunting, Big Game Hunting and Sport and Commercial Fishing

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — 1985 Final Environmental Assessment Proposed Opening of Bogue Chitto National Wildlife Refuge to Upland Game Hunting, Migratory Waterfoul Hunting, Big Game Hunting...

  1. Alkaloids in Marine Algae

    OpenAIRE

    Ekrem Sezik; Aline Percot; Kasım Cemal Güven

    2010-01-01

    This paper presents the alkaloids found in green, brown and red marine algae. Algal chemistry has interested many researchers in order to develop new drugs, as algae include compounds with functional groups which are characteristic from this particular source. Among these compounds, alkaloids present special interest because of their pharmacological activities. Alkaloid chemistry has been widely studied in terrestrial plants, but the number of studies in algae is insignificant. In this review...

  2. [Role of modern hunting in wildlife management].

    Science.gov (United States)

    Cao, Shi; Zhou, Xue-Hong; Zhang, Wei

    2014-01-01

    Although modern hunting is different from traditional hunting, it remains a controversial topic. A large number of scholars in the world have studied the effects of hunting on wild animals from an ecological, ethological, genetic and economic aspect. This paper reviewed the role of controlled hunting in wildlife production from population dynamics, behavior, genetic and a phenotypic level, and by integrating a large number of domestic and foreign literatures. Many studies have shown that regulated hunting is an efficient approach in managing wildlife populations, which could be beneficial to the recovery and possibly even growth of wildlife populations. Meanwhile, over-exploitation or inappropriate hunting could affect the sex, birth and mortality ratios of wildlife populations, change foraging behavior and socio-spatial behavior and generate artificial selection of their genotype and phenotype. To apply modern hunting properly to wildlife management, China could learn from successful hunting programs implemented in many other countries, which are based on ecological and economic principles to formulate scientifically determined hunting quotas and set up an effective system to regulate and manage the hunting of wildlife populations.

  3. Hunting, law enforcement, and African primate conservation.

    Science.gov (United States)

    N'Goran, Paul K; Boesch, Christophe; Mundry, Roger; N'Goran, Eliezer K; Herbinger, Ilka; Yapi, Fabrice A; Kühl, Hjalmar S

    2012-06-01

    Primates are regularly hunted for bushmeat in tropical forests, and systematic ecological monitoring can help determine the effect hunting has on these and other hunted species. Monitoring can also be used to inform law enforcement and managers of where hunting is concentrated. We evaluated the effects of law enforcement informed by monitoring data on density and spatial distribution of 8 monkey species in Taï National Park, Côte d'Ivoire. We conducted intensive surveys of monkeys and looked for signs of human activity throughout the park. We also gathered information on the activities of law-enforcement personnel related to hunting and evaluated the relative effects of hunting, forest cover and proximity to rivers, and conservation effort on primate distribution and density. The effects of hunting on monkeys varied among species. Red colobus monkeys (Procolobus badius) were most affected and Campbell's monkeys (Cercopithecus campbelli) were least affected by hunting. Density of monkeys irrespective of species was up to 100 times higher near a research station and tourism site in the southwestern section of the park, where there is little hunting, than in the southeastern part of the park. The results of our monitoring guided law-enforcement patrols toward zones with the most hunting activity. Such systematic coordination of ecological monitoring and law enforcement may be applicable at other sites. ©2012 Society for Conservation Biology.

  4. Is moral bioenhancement dangerous?

    Science.gov (United States)

    Drake, Nicholas

    2016-01-01

    In a recent response to Persson and Savulescu's Unfit for the Future, Nicholas Agar argues that moral bioenhancement is dangerous. His grounds for this are that normal moral judgement should be privileged because it involves a balance of moral subcapacities; moral bioenhancement, Agar argues, involves the enhancement of only particular moral subcapacities, and thus upsets the balance inherent in normal moral judgement. Mistaken moral judgements, he says, are likely to result. I argue that Agar's argument fails for two reasons. First, having strength in a particular moral subcapacity does not necessarily entail a worsening of moral judgement; it can involve strength in a particular aspect of morality. Second, normal moral judgement is not sufficiently likely to be correct to be the standard by which moral judgements are measured. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/

  5. Dangers and Pleasures

    DEFF Research Database (Denmark)

    Järvinen, Margaretha Maria; Østergaard, Jeanette

    2011-01-01

    This is a study of young people’s conceptions of illegal drug use as dangerous and/or pleasurable and an analysis of the relationship between attitudes to drugs, drinking, friends’ reported drug use and own experience with drug use and drinking. The article applies a mixed methods approach using...... both survey data and focus group interviews. The main statistical method is Multiple Correspondence Analysis (MCA), which constructs a social space of young people’s attitudes to drugs and drug experiences relationally. We identify four interrelated positions on illegal drug use among 17 to 19-year......-old Danes: the anti-drug position, usually held by youths who do not use illegal drugs and do not have drug-using friends; the ambivalent position, occupied by non-users who report that they have drug-using friends; the transitory position, held by cannabis users, some of whom express positive attitudes...

  6. Ethical aspects of hunting tourism in Serbia

    Directory of Open Access Journals (Sweden)

    Prentović Risto

    2013-01-01

    Full Text Available The aim of this paper is to examine contemporary moral controversies about hunting tourism in Serbia in the context of defined value orientations and norms of ethics of hunting tourism, as a branch of applied ethics. On the one hand, this paper summarizes conceptual definitions and specificities of hunting tourism, as a special form of tourism, and the crucial value postulates derived from the assumptions of the concept of sustainable development and biodiversity conservation, and philosophical, theological and legal settings of man’s attitude towards animals and their welfare, as well as the standard code of hunting ethics and issues of business ethics in hunting tourism, on the other. The paper also cites some examples of ethically problematic phenomena in modern hunting tourism in Serbia and offers possible solutions to overcome them.

  7. Amendment #3 : Hunting and Fishing Plan : Mingo National Wildlife Refuge : Historic Weapons Deer Hunt

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This amendment to the Mingo NWR Hunting and Fishing Plan opens an additional 5,000 acres in the southwest portion of the Refuge to a historic weapons deer hunt.

  8. Geochemical Treasure Hunt for Primary School Children

    Science.gov (United States)

    Tesmer, Maja; Frick, Daniel; Gerrits, Ruben; des GFZ-GeoWunderWerkstatt, Schülerlabor

    2017-04-01

    How can you inspire school children for geochemistry, and scientific exploratory urge? The key is to raise their curiosity and make learning new things a hands-on experience. The Fellows of the European Marie Curie Initial Training Network IsoNose designed and established a "Geochemical Treasure Hunt" to excite children for scientific investigations. This workshop explains primary school children the research and scientific methods of isotopic geochemistry, and their use to understand processes on the Earth's surface. From obtaining 'samples', performing various experiments, the school children gather clues leading them to the hidden treasure on the Telegrafenberg (campus of the GFZ Potsdam). The course was designed for school children to learn hands-on the meaning of elements, atoms and isotopes. In small groups the children conduct experiments of simplified methods being indispensable to any isotope geochemist. However, prior to working in any laboratory environment, a security briefing is necessary. For the course, two stages were implemented; firstly the use of harmful substances and dangerous equipment was minimised, and secondly children were equipped with size-matched personal protective equipment (lab coats, gloves, and safety googles). The purification of elements prior to isotopic analysis was visualised using colour chromatography. However, instead of using delicate mass spectrometers for the isotope ratio measurements, the pupils applied flame spectroscopy to analyse their dissolved and purified mineral solutions. Depending on the specific element present, a different colour was observed in the flame. The children plotted their colours of the flame spectroscopy onto a map and by interpreting the emerging colour patterns they localized the treasure on the map. In small teams they swarmed out on the Telegrafenberg to recover the hidden treasure. The project leading to this outreach activity has received funding from the People Programme (Marie Curie

  9. Rgyas bzang Tibetan Tribe Hunting Lore

    Directory of Open Access Journals (Sweden)

    Bkra shis dpal 'bar

    2011-12-01

    Full Text Available The Yul shul (Yushu Rgyas bzang Tribe historically possessed a rich hunting tradition. Wildlife was hunted for food and other animal products. By 2007, hunting culture had diminished due to improvements in living conditions, wildlife protection laws, greater state control of wildlife product skin market and gun ownership, animal diseases, and the absence of such wildlife as wild yaks in local areas.

  10. Let them eat algae

    Energy Technology Data Exchange (ETDEWEB)

    Ciferri, O.

    1981-09-24

    The blue-green alga, Spirulina appears to be one of the candidates for the solution of the global problems of energy, food and chemical feedstock supplies. The harvesting of algae from Lake Texcoco, Mexico for the making of bread was noted in the 16th century by the Spanish and over 400 years later, dried biscuits made from algae were noted in Chad. Recent investigations have shown that the alga contains a very high proportion of protein - even higher than soya beans and is of high quality. A pilot plant covering 2 hectares for culturing Spirulina in a closed system is under construction in Italy. The polyethylene tubes will function as solar collectors and so extend the production season of the algae in more temperate regions.

  11. Algae Derived Biofuel

    Energy Technology Data Exchange (ETDEWEB)

    Jahan, Kauser [Rowan Univ., Glassboro, NJ (United States)

    2015-03-31

    One of the most promising fuel alternatives is algae biodiesel. Algae reproduce quickly, produce oils more efficiently than crop plants, and require relatively few nutrients for growth. These nutrients can potentially be derived from inexpensive waste sources such as flue gas and wastewater, providing a mutual benefit of helping to mitigate carbon dioxide waste. Algae can also be grown on land unsuitable for agricultural purposes, eliminating competition with food sources. This project focused on cultivating select algae species under various environmental conditions to optimize oil yield. Membrane studies were also conducted to transfer carbon di-oxide more efficiently. An LCA study was also conducted to investigate the energy intensive steps in algae cultivation.

  12. 77 FR 38317 - Wildlife and Hunting Heritage Conservation Council

    Science.gov (United States)

    2012-06-27

    ... Fish and Wildlife Service Wildlife and Hunting Heritage Conservation Council AGENCY: Fish and Wildlife..., announce a public teleconference of the Wildlife and Hunting Heritage Conservation Council (Council). DATES... that Wildlife and Hunting Heritage Conservation Council will hold a teleconference. Background...

  13. 76 FR 3155 - Wildlife and Hunting Heritage Conservation Council

    Science.gov (United States)

    2011-01-19

    ... Fish and Wildlife Service Wildlife and Hunting Heritage Conservation Council AGENCY: Fish and Wildlife... public meeting of the Wildlife and Hunting Heritage Conservation Council (Council). DATES: Meeting... that Wildlife and Hunting Heritage Conservation Council will hold a meeting. Background Formed...

  14. 78 FR 42104 - Wildlife and Hunting Heritage Conservation Council

    Science.gov (United States)

    2013-07-15

    ... Fish and Wildlife Service Wildlife and Hunting Heritage Conservation Council AGENCY: Fish and Wildlife..., announce a public teleconference of the Wildlife and Hunting Heritage Conservation Council (Council). DATES... Wildlife and Hunting Heritage Conservation Council will hold a teleconference. Background Formed...

  15. 77 FR 74864 - Wildlife and Hunting Heritage Conservation Council

    Science.gov (United States)

    2012-12-18

    ... Fish and Wildlife Service Wildlife and Hunting Heritage Conservation Council AGENCY: Fish and Wildlife... public meeting of the Wildlife and Hunting Heritage Conservation Council (Council). DATES: Meeting.... App., we announce that Wildlife and Hunting Heritage Conservation Council will hold a...

  16. 77 FR 10543 - Wildlife and Hunting Heritage Conservation Council Charter

    Science.gov (United States)

    2012-02-22

    ... Office of the Secretary Wildlife and Hunting Heritage Conservation Council Charter AGENCY: Office of the... Secretary of Agriculture have renewed the Wildlife and Hunting Heritage Conservation Council (Council..., providing recommendations for: (a) Implementing the Recreational Hunting and Wildlife Resource...

  17. 75 FR 57292 - Wildlife and Hunting Heritage Conservation Council

    Science.gov (United States)

    2010-09-20

    ... Fish and Wildlife Service Wildlife and Hunting Heritage Conservation Council AGENCY: Fish and Wildlife... public meeting of the Wildlife and Hunting Heritage Conservation Council (Council). DATES: Meeting... that Wildlife and Hunting Heritage Conservation Council will hold a meeting. Background Formed...

  18. 77 FR 15386 - Wildlife and Hunting Heritage Conservation Council

    Science.gov (United States)

    2012-03-15

    ... Fish and Wildlife Service Wildlife and Hunting Heritage Conservation Council AGENCY: Fish and Wildlife..., announce a public teleconference of the Wildlife and Hunting Heritage Conservation Council (Council). DATES... that Wildlife and Hunting Heritage Conservation Council will hold a teleconference. Background...

  19. A dangerous mixture

    Directory of Open Access Journals (Sweden)

    Anna Piva

    2014-03-01

    Full Text Available A 59-year old woman was admitted for fatigue and arm paresthesias with Trousseau sign. Her medical history included thyroidectomy and hypercholesterolemia recently treated with simvastatin. Laboratory tests showed severe hypokalemia and hypocalcemia, severe increase in muscle enzymes, metabolic alkalosis; low plasma renin activity, increased thyroid-stimulating hormone, normal free thyroxine, increased parathyroid hormone, decreased vitamin D3; alterations in electrolyte urinary excretion, cortisol and aldosterone were excluded. Hypothesizing a statin-related myopathy, simvastatin was suspended; the patient reported use of laxatives containing licorice. Electrolytes normalized with intravenous supplementation. Among many biochemical alterations, none stands out as a major cause for muscular and electrolyte disorders. All co-factors are inter-connected, starting with statin-induced myopathy, worsened by hypothyroidism, secondary hyperaldosteronism and vitamin D deficiency, leading to hypocalcemia and hypokalemia, perpetrating muscular and electrolyte disorders. The importance of considering clinical conditions as a whole emerges with multiple co-factors involved. Another issue concerns herbal products and their potential dangerous effects.

  20. Neurosyphilis Mimicking Ramsay Hunt Syndrome.

    Science.gov (United States)

    Maeda, Tadashi; Yoshizawa, Sadako; Hirayama, Takehisa; Saga, Tomoo; Tateda, Kazuhiro; Urita, Yoshihisa

    2015-01-01

    A 36-year-old man presented with facial nerve palsy, hearing loss, vertigo and headache. He was initially diagnosed with Ramsay Hunt syndrome and treated with a systemic steroid and valaciclovir; however, his symptoms deteriorated. Serum rapid plasma reagin (RPR) and treponema pallidum hemagglutination tests were positive. Cerebrospinal fluid analysis revealed an elevated white blood cell count and positive RPR, confirming the diagnosis of neurosyphilis. Penicillin G (PCG) was administered, and his facial nerve function and headache improved. However, left-side hearing loss worsened temporarily, which was assumed to be a Jarisch-Herxheimer reaction. Betamethasone was administered along with PCG, and he recovered completely.

  1. Hunting Motifs in Situla Art

    Directory of Open Access Journals (Sweden)

    Andrej Preložnik

    2013-07-01

    Full Text Available Situla art developed as an echo of the toreutic style which had spread from the Near East through the Phoenicians, Greeks and Etruscans as far as the Veneti, Raeti, Histri, and their eastern neighbours in the region of Dolenjska (Lower Carniola. An Early Iron Age phenomenon (c. 600—300 BC, it rep- resents the major and most arresting form of the contemporary visual arts in an area stretching from the foot of the Apennines in the south to the Drava and Sava rivers in the east. Indeed, individual pieces have found their way across the Alpine passes and all the way north to the Danube. In the world and art of the situlae, a prominent role is accorded to ani- mals. They are displayed in numerous representations of human activities on artefacts crafted in the classic situla style – that is, between the late 6th  and early 5th centuries BC – as passive participants (e.g. in pageants or in harness or as an active element of the situla narrative. The most typical example of the latter is the hunting scene. Today we know at least four objects decorat- ed exclusively with hunting themes, and a number of situlae and other larger vessels where hunting scenes are embedded in composite narratives. All this suggests a popularity unparallelled by any other genre. Clearly recognisable are various hunting techniques and weapons, each associated with a particu- lar type of game (Fig. 1. The chase of a stag with javelin, horse and hound is depicted on the long- familiar and repeatedly published fibula of Zagorje (Fig. 2. It displays a hound mauling the stag’s back and a hunter on horseback pursuing a hind, her neck already pierced by the javelin. To judge by the (so far unnoticed shaft end un- der the stag’s muzzle, the hunter would have been brandishing a second jave- lin as well, like the warrior of the Vače fibula or the rider of the Nesactium situla, presumably himself a hunter. Many parallels to his motif are known from Greece, Etruria, and

  2. Wastewater treatment with algae

    Energy Technology Data Exchange (ETDEWEB)

    Wong Yukshan [Hong Kong Univ. of Science and Technology, Kowloon (China). Research Centre; Tam, N.F.Y. [eds.] [City Univ. of Hong Kong, Kowloon (China). Dept. of Biology and Chemistry

    1998-05-01

    Immobilized algal technology for wastewater treatment purposes. Removal of copper by free and immobilized microalga, Chlorella vulgaris. Biosorption of heavy metals by microalgae in batch and continuous systems. Microalgal removal of organic and inorganic metal species from aqueous solution. Bioaccumulation and biotransformation of arsenic, antimony and bismuth compounds by freshwater algae. Metal ion binding by biomass derived from nonliving algae, lichens, water hyacinth root and spagnum moss. Metal resistance and accumulation in cyanobacteria. (orig.)

  3. Algae fuels : a tantalizing alternative

    Energy Technology Data Exchange (ETDEWEB)

    Granson, E.

    2010-11-15

    This article surveyed the current state of research and development in the area of algae use as a basis for fuel and as a feedstock for the chemical industry. The constraints inhibiting the commercialization of algae-related processes were discussed and a brief overview of the history of algae research was presented. Interest in algae research has ebbed and flowed in conjunction with economic and social concerns. It is unknown whether algae can be grown on a scale and cost that is commercially viable. A bench-scale algae cultivation system involving photobioreactors was described. Algae are increasingly being used in treating wastewater from industrial processes, as algae can reduce ammonia and phosphate loads in effluent. Exhaust carbon dioxide is being used to feed algae crops. Advances are needed to make turning algae oil into fuel cost effective. A bench-stage process for extracting algae oil from water for biofuel conversion was described. The process results in easier-to-dry biomass without using chemical solvents or centrifuges. Algae biomass is also being explored for used as a polymer feedstock. Algae can be grown anywhere there is sun, but the challenge is in developing a large enough supply of algae biomass. Second generation algae plastic products will be more complex and may involve the creation of a monomer out of algae itself, which could make algae competitive with oil in the plastics industry. Skeptics doubt that algae processes can be commercialized, but some within the industry believe that algae biomass will eventually work within the norms of industrial processes. 5 figs.

  4. ON THE SUBJECT OF ILLEGAL HUNTING

    Directory of Open Access Journals (Sweden)

    M. G. Abdulmutalibov

    2014-01-01

    Full Text Available Aim. The article considers a notion of subject of such crime as illegal hunting. Only a man can be a subject of this crime. The content of such crime is revealed with the help of such properties as guilt, motive and aim. The article considers different properties of a subject of crime: 1 Physical nature Illegal actions can be committed by a man directly or indirectly. If during hunting a dog without its master’s command got a wild animal, the hunter is not liable as here intentional crime is absent. Juridical entities also are not admitted a subject of crime, only their representative if he committed this crime. 2 Criminal capacity. A person is not liable for this crime if he committed it in the state of criminal incapacity (CC Art.21. If illegal hunting is committed by a person in the state of drunkenness he is admitted capable and is liable for the crime(Criminal Code art.23. 3 A definite age. According to Art.23 of RF CC criminal responsibility for illegal hunting comes from the age of 16 . Performance of art.11, 12, 13 of CC concerns citizens of Russia, foreign citizens and persons without citizenship who committed poaching on the territory of Russia. Thus, the subject of poaching is a capable physical person reached the age of 16 by the moment of committing the crime. Methods. questionnaire method was applied for finding out the predominant motive and aim of illegal hunting. Result. 82% of pollee officials of hunting supervision bodies indicated the motive of profit as a predominant in committing illegal hunting.Location. Pskovskaya, Tulskaya, Moskovskaya regions. Conclusions. 1.Illegal hunting is committed only intentionally.2.The aim of poaching is killing wild animals and further use of their meat, skin, down, and active rest3.The more spread motives of poaching are: mercenary motives (35% and hunting passion

  5. Anticoagulant effect of marine algae.

    Science.gov (United States)

    Kim, Se-Kwon; Wijesekara, Isuru

    2011-01-01

    Recently, a great deal of interest has been developed in the nutraceutical and pharmaceutical industries to isolate natural anticoagulant compounds from marine resources. Among marine resources, marine algae are valuable sources of novel bioactive compounds with anticoagulant effect. Phlorotannins and sulfated polysaccharides such as fucoidans in brown algae, carrageenans in red algae, and ulvans in green algae have been recognized as potential anticoagulant agents. Therefore, marine algae-derived phlorotannins and SPs have great potential for developing as anticoagulant drugs in nutraceutical and pharmaceutical areas. This chapter focuses on the potential anticoagulant agents in marine algae and presents an overview of their anticoagulant effect. Copyright © 2011 Elsevier Inc. All rights reserved.

  6. Uptake of caprolactam and its influence on growth and oxygen production of Desmodesmus quadricauda algae.

    Science.gov (United States)

    Kalinová, Jana Pexová; Tříska, Jan; Vrchotová, Naděžda; Novák, Jan

    2016-06-01

    The consumption of polyamides produced from caprolactam is increasing continuously, and for that reason the danger of environmental contamination by this lactam is also rising. This study's aim was to evaluate the influence of caprolactam on the growth and oxygen production of the green alga Desmodesmus quadricauda and on caprolactam uptake by this alga. The presence of caprolactam in water was observed to cause the algae significantly to increase its oxygen production. Caprolactam concentration of 5,000 mg/L stopped algae growth after 6 days and influenced coenobia structure (seen as disappearance of pyrenoids, deformation of cells) but did not decrease the number of cells in the coenobia. Caprolactam uptake is probably passive but relatively rapid. Maximum concentration in the algae was reached after 18-24 h.

  7. Drivers of bushmeat hunting and perceptions of zoonoses in Nigerian hunting communities.

    Directory of Open Access Journals (Sweden)

    Sagan Friant

    2015-05-01

    Full Text Available Bushmeat hunting threatens biodiversity and increases the risk of zoonotic pathogen transmission. Nevertheless, limited information exists on patterns of contact with wildlife in communities that practice bushmeat hunting, especially with respect to social drivers of hunting behavior. We used interview responses from hunters and non-hunters in rural hunting communities in Nigeria to: 1 quantify contact rates with wildlife, 2 identify specific hunting behaviors that increase frequency of contact, 3 identify socioeconomic factors that predispose individuals to hunt, and 4 measure perceptions of risk. Participants engaged in a variety of behaviors that increased contact with wild animals, including: butchering to sell (37%, being injured (14%, using body parts for traditional medicine (19%, collecting carcasses found in forests and/or farms (18%, and keeping as pets (16%. Hunters came into contact with wildlife significantly more than non-hunters, even through non-hunting exposure pathways. Participants reported hunting rodents (95%, ungulates (93%, carnivores (93%, primates (87%, and bats (42%, among other prey. Reported hunting frequencies within taxonomic groups of prey were different for different hunting behaviors. Young age, lower education level, larger household size, having a father who hunts, and cultural group were all associated with becoming a hunter. Fifty-five percent of respondents were aware that they could contract diseases from wild animals, but only 26% of these individuals reported taking protective measures. Overall, hunters in this setting frequently contact a diversity of prey in risky ways, and the decision to become a hunter stems from family tradition, modified by economic necessity. Conservation and public health interventions in such settings may be most efficient when they capitalize on local knowledge and target root socio-economic and cultural drivers that lead to hunting behavior. Importantly, interventions that

  8. Hunting Plan : Mingo National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for the administration of hunting activity and for the development, maintenance, and enforcement of regulations and guidelines on Mingo...

  9. Cat Island NWR Recreational Hunting Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — A natural resource management plan describing the regulations and decision processes for sport hunting at Cat Island NWR. This plan has been replaced by a more...

  10. Hunting Plan: St. Vincent National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for the administration of hunting activity and for the development, maintenance, and enforcement of regulations and guidelines on St....

  11. Hunt Plan : Pocosin Lakes National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for the administration of hunting activity and for the development, maintenance, and enforcement of regulations and guidelines on...

  12. Back Bay National Wildlife Refuge: Hunting Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for the administration of hunting activity and for the development, maintenance, and enforcement of regulations and guidelines on Back...

  13. Hunting Plan Morgan Brake National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for administration of hunting activity and for development, maintenance, and enforcement of regulations and guidelines on Morgan Brake...

  14. Hunting Plan Mathew's Brake National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for administration of hunting activity and for development, maintenance, and enforcement of regulations and guidelines on Mathew’s...

  15. Hunting Plan : Seney National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Hunting has been and is a traditional use of the Seney Refuge dating back to its establishment in 1935. This recreational activity has strong support from the...

  16. Hunting Plan : Malheur National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The purpose of this plan is to provide guidelines for administration of hunting activity and for development, maintenance, and enforcement of regulations and...

  17. Revised Hunting Plan : Sherburne National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for the administration of hunting activity and for the development, maintenance, and enforcement of regulations and guidelines on...

  18. Hunting Plan : Shiawassee National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for administration of hunting activity and for development, maintenance, and enforcement of regulations and guidelines on Shiawassee...

  19. Benton Lake National Wildlife Refuge : Hunting Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for the administration of hunting activity and for the development, maintenance, and enforcement of regulations and guidelines on...

  20. Crab Orchard National Wildlife Refuge : Hunting Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for the administration of hunting activity and for the development, maintenance, and enforcement of regulations and guidelines on Crab...

  1. Fact sheet : Hunting and Fishing Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This document provides information about the opening of portions of Eufaula National Wildlife Refuge to the hunting of eastern mourning doves and migratory...

  2. Hunting Plan : Trempealeau National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for administration of hunting activity and for development, maintenance, and enforcement of regulations and guidelines on Trempealeau...

  3. Sport Hunting Plan Decision Document Package

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Objectives of plan are to provide high quality hunting opportunities, maintain populations within seasonal carrying capacities, and allow compatible public use.

  4. Hunting Management Plan Erie NWR 1995

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for the administration of hunting activity and for the development, maintenance, and enforcement of regulations and guidelines on Erie...

  5. Locomotion dynamics of hunting in wild cheetahs.

    Science.gov (United States)

    Wilson, A M; Lowe, J C; Roskilly, K; Hudson, P E; Golabek, K A; McNutt, J W

    2013-06-13

    Although the cheetah is recognised as the fastest land animal, little is known about other aspects of its notable athleticism, particularly when hunting in the wild. Here we describe and use a new tracking collar of our own design, containing a combination of Global Positioning System (GPS) and inertial measurement units, to capture the locomotor dynamics and outcome of 367 predominantly hunting runs of five wild cheetahs in Botswana. A remarkable top speed of 25.9 m s(-1) (58 m.p.h. or 93 km h(-1)) was recorded, but most cheetah hunts involved only moderate speeds. We recorded some of the highest measured values for lateral and forward acceleration, deceleration and body-mass-specific power for any terrestrial mammal. To our knowledge, this is the first detailed locomotor information on the hunting dynamics of a large cursorial predator in its natural habitat.

  6. Hunting Plan : Rice Lake National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The objectives of this hunting plan for Rice Lake NWR are to: provide a method of removing white-tailed deer from the area population to maintain the general health...

  7. St. Vincent Offers Special Archery & Primitive Hunts

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — St. Vincent National Wildlife Refuge's archery hunt is scheduled for November 28-30, 1984. White-tailed deer, turkeys, and hogs may be taken.

  8. Hunting Plan Squaw Creek National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for the administration of hunting activity and for the development, maintenance, and enforcement of regulations and guidelines on Squaw...

  9. Ramsay hunt syndrome (herpes zoster oticus

    Directory of Open Access Journals (Sweden)

    S Karthiga Kannan

    2012-01-01

    Full Text Available Ramsay Hunt syndrome (RHS is defined as an acute peripheral facial neuropathy caused by the reactivated latent varicella zoster virus (VZV in the geniculate ganglion; characterized with erythematous vesicular rash of the skin of the ear canal, auricle, facial skin, oral mucosa and facial palsy (also known as herpes zoster oticus. This article reports a case of Ramsay Hunt Syndrome (RHS in a 37-year-old male patient depicting the classical signs.

  10. Default-all is dangerous!

    CERN Document Server

    Gatterbauer, Wolfgang; Suciu, Dan

    2011-01-01

    We show that the default-all propagation scheme for database annotations is dangerous. Dangerous here means that it can propagate annotations to the query output which are semantically irrelevant to the query the user asked. This is the result of considering all relationally equivalent queries and returning the union of their where-provenance in an attempt to define a propagation scheme that is insensitive to query rewriting. We propose an alternative query-rewrite-insensitive (QRI) where-provenance called minimum propagation. It is analogous to the minimum witness basis for why-provenance, straight-forward to evaluate, and returns all relevant and only relevant annotations.

  11. 7th Higgs Hunting 2016

    CERN Document Server

    2016-01-01

    A subject of major importance in fundamental physics is the investigation of the origin of Electroweak Symmetry Breaking. The mechanism of mass generation through the spontaneous breaking of a gauge symmetry is called the Brout-Englert-Higgs mechanism and is associated with the appearance of a physical scalar boson. The discovery announced at CERN on 4th July 2012 by the ATLAS and CMS Collaborations of a boson at a mass close to 125 GeV/c2, compatible with this scalar boson of the Standard Model, the so-called Higgs boson, mainly in γγ, ZZ and WW decay modes, with compatible evidence also found at Fermilab in the bb mode, changed the landscape. This important discovery was acknowledged as decisive for the attribution of the 2013 Nobel Prize in Physics awarded jointly to François Englert and Peter Higgs . This 7th workshop of the "Higgs Hunting" series organized in Paris on August 31 - September 2, 2016 will discuss the developments of LHC run 2 analyses, detailed studies of the new boson and possible de...

  12. Blue-green algae

    Science.gov (United States)

    ... about the use of blue-green algae during pregnancy and breast-feeding. Stay on the safe side and avoid use. "Auto-immune diseases" such as multiple sclerosis (MS), lupus (systemic lupus erythematosus, SLE), rheumatoid arthritis (RA), pemphigus vulgaris (a skin ...

  13. Hunting for Conservation? The Re-introduction of Sport Hunting in Uganda Examined

    NARCIS (Netherlands)

    Ochieng, A.; Ahebwa, W.M.; Visseren-Hamakers, I.J.

    2015-01-01

    Uganda reintroduced sport hunting in 2001. The policy was piloted around Lake Mburo National Park and later replicated around other protected areas. This chapter analyses the development, implementation and impact of sport hunting policy in Uganda. We do so through literature review, document

  14. 75 FR 32872 - Migratory Bird Hunting; Supplemental Proposals for Migratory Game Bird Hunting Regulations for...

    Science.gov (United States)

    2010-06-10

    ... alternatives for duck hunting seasons remain the same as those used in 2009. Service Response: As we stated in... Council Recommendations: The Atlantic Flyway Council recommended adoption of a derived Northern Pintail... usefulness of sex-specific regulations for pintails as a way to increase hunting opportunity on male...

  15. 77 FR 42919 - Migratory Bird Hunting; Proposed Frameworks for Early-Season Migratory Bird Hunting Regulations...

    Science.gov (United States)

    2012-07-20

    ... July 20, 2012 Part V Department of the Interior Fish and Wildlife Service 50 CFR Part 20 Migratory Bird Hunting; Proposed Frameworks for Early-Season Migratory Bird Hunting Regulations; Notice of Meetings...; ] DEPARTMENT OF THE INTERIOR Fish and Wildlife Service 50 CFR Part 20 RIN 1018-AX97 Migratory Bird...

  16. The Quabbin controlled deer hunt 1991 - 2001: limitations of a controlled hunt

    Science.gov (United States)

    Beth E. Cohen; David K. Loomis

    2003-01-01

    The Quabbin Reservoir, built in the 1930's as a water supply for Boston, is an unfiltered source of water. The agency responsible for managing the reservoir wants it to remain unfiltered. As a result, human activity is kept to a minimum, including (until recently) a prohibition on hunting. The lack of natural predators and the ban on recreational hunting allowed...

  17. The dangers of sports journalism

    DEFF Research Database (Denmark)

    Sparre, Kirsten

    2017-01-01

    According to The Committee to Protect Journalists, 2 per cent of all journalists killed since 1992 worked on the sports beat. However, at present there is little understanding of the specific dangers faced by sports journalists. This chapter presents findings from exploratory research on 78 repor...

  18. The dangers of sports journalism

    DEFF Research Database (Denmark)

    Sparre, Kirsten

    2017-01-01

    According to The Committee to Protect Journalists, 2 per cent of all journalists killed since 1992 worked on the sports beat. However, at present there is little understanding of the specific dangers faced by sports journalists. This chapter presents findings from exploratory research on 78 repor...

  19. Body as Danger: Gender, Race and Body in Toni Morrison's Sul

    Directory of Open Access Journals (Sweden)

    Pi-hua Ni

    2016-01-01

    Full Text Available http://dx.doi.org/10.5007/2175-8026.2015v68n2p115 This paper aims at tackling the question as to why Sula as a social nonconformist and sexual dissident ends up as an avatar of evil, a powerless victim of witch-hunt and eventually a scapegoat for the decline and misfortunes of her community. To facilitate this critical task, this paper shall irst apply Michel Foucault’s genealogy of “the body as the bearer of pleasure and desire” as laid out in Abnormal to illustrate that Christian folks in Sula’s community interpret Sula’s nonconformity as evil and treat her as a danger to their social order. Thus, this paper argues that the black folks’ ostracism of Sula betokens their mass hysteria and witch-hunt to exorcise their community of danger and evil. Moreover, this paper suggests that Sula is gendered and racialized as a black witch and symbolically executed. In conclusion, this paper contends that an identiication of body with lesh, a phallocentric gender ideology and race bias converge into the black folk’s association of Sula with a witch and a danger and their subsequent victimization of sula as a scapegoat for all the misfortunes of their community.

  20. The management of hunting of Anatidae

    Science.gov (United States)

    Nichols, J.D.; Johnson, F.A.; Birkan, Marcel

    1996-01-01

    The objectives of harvest management for members of family Anatidae typically involve the size of the harvested population and the size of the harvest. Hunting regulations are the primary tool used to try to achieve the objectives of harvest management. Informed harvest management thus requires a knowledge of the relationship between hunting regulations and both Anatid abundance and harvest. Results of retrospective studies in North America provide evidence that generally restrictive regulations produce lower harvest rates than generally liberal regulations. However, such studies have provided little evidence that specific hunting regulations designed to produce a change in the relative harvest rates of different species, or of the sexes within a species, have been successful in 'directing' harvest toward specific groups of birds and away from other groups. Estimates of the strength of the relationship between harvest mortality rates and annual survival rates of Anatidae have ranged from weak to strong. Thus, the key relationships for harvest management of Anatidae, those between hunting regulations and the size of both the subsequent harvest and the subsequent population, are not 'known' but are characterized by uncertainty. In the United States, this uncertainty led to a risk-aversive conservatism that characterized the setting of hunting regulations during the last decade. Recently, managers have begun to consider using hunting regulations themselves as a means to better understand the system being managed. This approach, referred to as active adaptive management, attempts to balance short-term demands for hunting opportunity with the learning needed to improve long-term management performance. Learning is accomplished by periodically comparing observed system response, as estimated by ongoing survey and data collection programs, with predictions of competing models. These periodic comparisons lead to changes in measures of credibility associated with the

  1. A hedonic analysis of the complex hunting experience

    DEFF Research Database (Denmark)

    Lundhede, Thomas; Jacobsen, Jette Bredahl; Thorsen, Bo Jellesmark

    2015-01-01

    In Denmark, the right to hunt is vested with the land owner but can be transferred to others and is traded on a well-established market. The dominant form of hunting leases is time limited contract transferring the hunting rights on a piece of land to one or more persons. We analyze this market...... of a lease is determined by the location and size of the hunting area, the game harvest and hunting activity itself, several landscape qualities affecting the recreational nature experience, several social aspects of hunting and the relation between the landowner, the hunters and their activities...

  2. Sustainable trophy hunting of African lions.

    Science.gov (United States)

    Whitman, Karyl; Starfield, Anthony M; Quadling, Henley S; Packer, Craig

    2004-03-11

    In most species, sport hunting of male trophy animals can only reduce overall population size when the rate of removal of males is so high that females can no longer be impregnated. However, where males provide extensive paternal care, the removal of even a few individuals could harm the population as a whole. In species such as lions, excessive trophy hunting could theoretically cause male replacements (and associated infanticide) to become sufficiently common to prevent cubs reaching adulthood. Here we simulate the population consequences of lion trophy hunting using a spatially explicit, individual-based, stochastic model parameterized with 40 years of demographic data from northern Tanzania. Although our simulations confirm that infanticide increases the risk of population extinction, trophy hunting could be sustained simply by hunting males above a minimum age threshold, and this strategy maximizes both the quantity and the quality of the long-term kill. We present a simple non-invasive technique for estimating lion age in populations lacking long-term records, and suggest that quotas would be unnecessary in any male-only trophy species where age determination could be reliably implemented.

  3. 'Impact hunters' catalyse cooperative hunting in two wild chimpanzee communities.

    Science.gov (United States)

    Gilby, Ian C; Machanda, Zarin P; Mjungu, Deus C; Rosen, Jeremiah; Muller, Martin N; Pusey, Anne E; Wrangham, Richard W

    2015-12-05

    Even when hunting in groups is mutually beneficial, it is unclear how communal hunts are initiated. If it is costly to be the only hunter, individuals should be reluctant to hunt unless others already are. We used 70 years of data from three communities to examine how male chimpanzees 'solve' this apparent collective action problem. The 'impact hunter' hypothesis proposes that group hunts are sometimes catalysed by certain individuals that hunt more readily than others. In two communities (Kasekela and Kanyawara), we identified a total of five males that exhibited high hunt participation rates for their age, and whose presence at an encounter with red colobus monkeys increased group hunting probability. Critically, these impact hunters were observed to hunt first more often than expected by chance. We argue that by hunting first, these males dilute prey defences and create opportunities for previously reluctant participants. This by-product mutualism can explain variation in group hunting rates within and between social groups. Hunting rates declined after the death of impact hunter FG in Kasekela and after impact hunter MS stopped hunting frequently in Kanyawara. There were no impact hunters in the third, smaller community (Mitumba), where, unlike the others, hunting probability increased with the number of females present at an encounter with prey.

  4. Spiruline, a virtuous algae

    OpenAIRE

    Various, Authors

    2015-01-01

    A short video about a local development practice focusing on the production and commercialization of spiruline, an algae used as an nutritional integrator. The practice was one of six prize winners resulting from a national competition for innovative practices of local development, launched by the Senegalese Ministry of local governance, development and territorial planning, with funding from the Italian Cooperation and technical support from the KIP International School.

  5. Danger of Antibiotic Overuse (For Parents)

    Science.gov (United States)

    ... Be Smart About Social Media The Danger of Antibiotic Overuse KidsHealth > For Parents > The Danger of Antibiotic ... by not reaching for the prescription pad. How Antibiotics Work Antibiotics, first used in the 1940s, are ...

  6. The hunting season’s over

    CERN Multimedia

    2014-01-01

    Hundreds of Internet users from across the globe have been scouring the Computer Centre for LEGO figurines in recent weeks (see here). The time has come to announce the results…   We’ve received nearly 5,000 screen-shots, the precious trophies gleaned from hours of virtual scavenging through the CERN Computing Centre, and we’re pleased to see our hunt raised so much interest. Unfortunately, rules being rules, we have to choose the two winners by drawing lots, so prizes will be winging their way to… Sarah Charley (CERN) Stefan Hayes We kindly thank everyone who took part in the hunt with so much gusto and hope you all had as much fun as we did! You can discover all the figurines here: http://lego-scavenger-hunt.web.cern.ch/ The CERN Bulletin team

  7. Dangerous Dogs, Constructivism and Normativity

    DEFF Research Database (Denmark)

    Hansen, Allan Dreyer

    2010-01-01

    This article argues that although there is no necessary link between constructivism and particular sets of norms, constructivism opens up a space for normativity and can be articulated through particular normative or political programs. I show how Laclau’s deconstructive constructivism can be art...... be articulated within the framework of an ethos of democratization. The article takes its empirical point of departure in debates over dangerous dogs....

  8. Cheetah do not abandon hunts because they overheat.

    Science.gov (United States)

    Hetem, Robyn S; Mitchell, Duncan; de Witt, Brenda A; Fick, Linda G; Meyer, Leith C R; Maloney, Shane K; Fuller, Andrea

    2013-10-23

    Hunting cheetah reportedly store metabolic heat during the chase and abandon chases because they overheat. Using biologging to remotely measure the body temperature (every minute) and locomotor activity (every 5 min) of four free-living cheetah, hunting spontaneously, we found that cheetah abandoned hunts, but not because they overheated. Body temperature averaged 38.4°C when the chase was terminated. Storage of metabolic heat did not compromise hunts. The increase in body temperature following a successful hunt was double that of an unsuccessful hunt (1.3°C ± 0.2°C versus 0.5°C ± 0.1°C), even though the level of activity during the hunts was similar. We propose that the increase in body temperature following a successful hunt is a stress hyperthermia, rather than an exercise-induced hyperthermia.

  9. Sport hunting decision document package : North Platte National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The U.S. Fish and Wildlife Service proposes limited hunting opportunities at North Platte NWR. Hunting activities will be permitted, but administratively limited to...

  10. Wildlife reserves, populations, and hunting outcome with smart wildlife

    DEFF Research Database (Denmark)

    Jensen, Frank; Jacobsen, Jette Bredahl; Strange, Niels

    2014-01-01

    We consider a hunting area and a wildlife reserve and answer the question: How does clever migration decision affect the social optimal and the private optimal hunting levels and population stocks? We analyze this in a model allowing for two-way migration between hunting and reserve areas, where...... the populations’ migration decisions depend on both hunting pressure and relative population densities. In the social optimum a pure stress effect on the behavior of smart wildlife exists. This implies that the population level in the wildlife reserve tends to increase and the population level in the hunting area...... and hunting levels tend to decrease. On the other hand, the effect on stock tends to reduce the population in the wildlife reserve and increase the population in the hunting area and thereby also increase hunting. In the case of the private optimum, open-access is assumed and we find that the same qualitative...

  11. Hunting Plan Prime Hook National Wildlife Refuge 1987

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan sets forth a proposal for public hunting on the refuge as a form of wildlife-oriented recreation. Hunting of deer, waterfowl, other migratory game birds...

  12. 78 FR 48460 - Wildlife and Hunting Heritage Conservation Council

    Science.gov (United States)

    2013-08-08

    ... Fish and Wildlife Service Wildlife and Hunting Heritage Conservation Council AGENCY: Fish and Wildlife... public meeting of the Wildlife and Hunting Heritage Conservation Council (Council). DATES: Meeting... wildlife and habitat conservation endeavors that: 1. Benefit wildlife resources; 2. Encourage...

  13. 76 FR 17442 - Wildlife and Hunting Heritage Conservation Council Teleconference

    Science.gov (United States)

    2011-03-29

    ... Fish and Wildlife Service Wildlife and Hunting Heritage Conservation Council Teleconference AGENCY... February 2010, the Council provides advice about wildlife and habitat conservation endeavors that: (a... public, the sporting conservation community, the shooting and hunting sports industry,...

  14. 78 FR 25463 - Wildlife and Hunting Heritage Conservation Council

    Science.gov (United States)

    2013-05-01

    ... Fish and Wildlife Service Wildlife and Hunting Heritage Conservation Council AGENCY: Fish and Wildlife... public meeting of the Wildlife and Hunting Heritage Conservation Council (Council). DATES: Meeting... advice about wildlife and habitat conservation endeavors that: 1. Benefit wildlife resources;...

  15. 77 FR 16051 - Wildlife and Hunting Heritage Conservation Council

    Science.gov (United States)

    2012-03-19

    ... Office of the Secretary Wildlife and Hunting Heritage Conservation Council AGENCY: Office of the... Hunting Heritage Conservation Council (Council). The Council provides advice about wildlife and habitat conservation endeavors that (a) benefit wildlife resources; (b) encourage partnership among the...

  16. 77 FR 57577 - Wildlife and Hunting Heritage Conservation Council

    Science.gov (United States)

    2012-09-18

    ... Fish and Wildlife Service Wildlife and Hunting Heritage Conservation Council AGENCY: Fish and Wildlife... public meeting of the Wildlife and Hunting Heritage Conservation Council (Council). DATES: Meeting... wildlife and habitat conservation endeavors that: 1. Benefit wildlife resources; 2. Encourage...

  17. 78 FR 73205 - Wildlife and Hunting Heritage Conservation Council

    Science.gov (United States)

    2013-12-05

    ... Fish and Wildlife Service Wildlife and Hunting Heritage Conservation Council AGENCY: Fish and Wildlife... public meeting of the Wildlife and Hunting Heritage Conservation Council (Council). DATES: Meeting... advice about wildlife and habitat conservation endeavors that: 1. Benefit wildlife resources;...

  18. 77 FR 31636 - Wildlife and Hunting Heritage Conservation Council

    Science.gov (United States)

    2012-05-29

    ... Fish and Wildlife Service Wildlife and Hunting Heritage Conservation Council AGENCY: Fish and Wildlife... public meeting of the Wildlife and Hunting Heritage Conservation Council (Council). DATES: Meeting... Council provides advice about wildlife and habitat conservation endeavors that: 1. Benefit...

  19. 76 FR 12130 - Wildlife and Hunting Heritage Conservation Council Teleconference

    Science.gov (United States)

    2011-03-04

    ... Fish and Wildlife Service Wildlife and Hunting Heritage Conservation Council Teleconference AGENCY... February 2010, the Council provides advice about wildlife and habitat conservation endeavors that: (a... public, the sporting conservation community, the shooting and hunting sports industry,...

  20. [Bear River Migratory Bird Refuge Hunt Plan & Related Documents : 1995

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The 'Bear River Migratory Bird Refuge Hunt Plan', beginning on page 66 and continuing through the end of the document, is focused on public hunting and the...

  1. Walnut Creek National Wildlife Refuge : Interim hunting plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This interim hunting plan for Neal Smith National Wildlife Refuge (formerly Walnut Creek National Wildlife Refuge) outlines hunting guidelines for the Refuge....

  2. Pocosin Lakes National Wildlife Refuge : Annual Hunt Evaluation for 2011.

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the activities and results of the annual deer hunt on Pocosin Lakes National Wildlife Refuge for fall 2011. Topics covered include hunt...

  3. Environmental Assessment : Bear River Migratory Bird Refuge Hunt Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This Environmental Assessment (EA) is designed to evaluate possible actions for modifying the Bear River Migratory Bird Refuge (Refuge) public hunt plan. The hunt...

  4. trophy hunting and trophy size in ugalla game reserve, western ...

    African Journals Online (AJOL)

    Mgina

    the Ugalla Game Reserve (UGR) of western Tanzania, in relation to hunting success (animals shot species-1 quota-1) ... take, which through effective management is considered to be ... are several requirements for a successful trophy hunting ...

  5. Compatibility Determination : Hunting of migratory birds and resident game

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This is the Compatibility Determination for the Minnesota Valley NWR and WMD proposed Hunting Plan. Refuge purposes are outlined and proposed hunting activities are...

  6. Pocosin Lakes National Wildlife Refuge : Annual Hunt Evaluation for 2005.

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the activities and results of the annual deer hunt on Pocosin Lakes National Wildlife Refuge for fall 2005. Topics covered include hunt...

  7. Canada goose kill statistics: Swan Lake Public Hunting Area

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This document discusses how the flexible kill formula for Canada goose hunting at Swan Lake Public Hunting Area was reached. Methods used to collect Canada goose...

  8. Pocosin Lakes National Wildlife Refuge : Annual Hunt Evaluation for 2007.

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the activities and results of the annual deer hunt on Pocosin Lakes National Wildlife Refuge for fall 2007. Topics covered include hunt...

  9. Pocosin Lakes National Wildlife Refuge : Annual Hunt Evaluation for 2004.

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the activities and results of the annual deer hunt on Pocosin Lakes National Wildlife Refuge for fall 2004. Topics covered include hunt...

  10. Pocosin Lakes National Wildlife Refuge : Annual Hunt Evaluation for 2010.

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the activities and results of the annual deer hunt on Pocosin Lakes National Wildlife Refuge for fall 2010. Topics covered include hunt...

  11. Modify hunting program on Arapaho NWR [Environmental Assesment

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The purpose for this Environmental Assessment (EA) is to evaluate the hunting program onArapaho National Wildlife Refuge (NWR). This EA, and hunting plan that will...

  12. Outreach Plan : Sherburne National Wildlife Refuge for Expanded Hunting Opportunities

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This Outreach Plan for Sherburne NWR states that hunting opportunities will be expanded on the Refuge to include wild turkey hunting by disabled and youth hunters.

  13. Pocosin Lakes National Wildlife Refuge : Annual Hunt Evaluation for 2002.

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the activities and results of the annual deer hunt on Pocosin Lakes National Wildlife Refuge for fall 2002. Topics covered include hunt...

  14. Pocosin Lakes National Wildlife Refuge : Annual Hunt Evaluation for 2008.

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the activities and results of the annual deer hunt on Pocosin Lakes National Wildlife Refuge for fall 2008. Topics covered include hunt...

  15. Pocosin Lakes National Wildlife Refuge : Annual Hunt Evaluation for 2009.

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the activities and results of the annual deer hunt on Pocosin Lakes National Wildlife Refuge for fall 2009. Topics covered include hunt...

  16. Pocosin Lakes National Wildlife Refuge : Annual Hunt Evaluation for 2003.

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the activities and results of the annual deer hunt on Pocosin Lakes National Wildlife Refuge for fall 2003. Topics covered include hunt...

  17. Pocosin Lakes National Wildlife Refuge : Annual Hunt Evaluation for 2006.

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the activities and results of the annual deer hunt on Pocosin Lakes National Wildlife Refuge for fall 2006. Topics covered include hunt...

  18. Hunting plan for San Francisco Bay National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This migratory waterfowl hunting plan for Don Edwards San Francisco Bay National Wildlife Refuge allows waterfowl hunting on certain areas of the Refuge. Aerial...

  19. Walk-In Hunting Access (WIHA) Fall 2009

    Data.gov (United States)

    Kansas Data Access and Support Center — This shapefile represents the private lands leased by the Kansas Department of Wildlife and Parks for fall 2009 public hunting access through the Walk-In Hunting...

  20. Walk-In Hunting Access (WIHA) Fall 2008

    Data.gov (United States)

    Kansas Data Access and Support Center — This shapefile represents the private lands leased by the Kansas Department of Wildlife and Parks for fall 2008 public hunting access through the Walk-In Hunting...

  1. Walk-In Hunting Access (WIHA) Fall 2010

    Data.gov (United States)

    Kansas Data Access and Support Center — This shapefile represents the private lands leased by the Kansas Department of Wildlife and Parks for fall 2010 public hunting access through the Walk-In Hunting...

  2. The Hunt Is Not On China's ban on trophy hunting remains despite calls for a relaxation

    Institute of Scientific and Technical Information of China (English)

    YUAN YUAN

    2011-01-01

    Dulan,a small town in northwest China's Qinghai Province,would have been an unfamiliar name to most Chinese,if not for the recent high-profile debate regarding the possible relaxation of a six-year ban on hunting in the vicinity of the town.Foreign hunters have been familiar with Dulan since 1992 when they were tirst granted permits to hunt in the area.The State Forestry Administration (SFA) banned hunting in the region in 2006 amidst concerns that hunters were killing too many animals and damaging the local ecosystem.

  3. Big game hunting practices, meanings, motivations and constraints: a survey of Oregon big game hunters

    Science.gov (United States)

    Suresh K. Shrestha; Robert C. Burns

    2012-01-01

    We conducted a self-administered mail survey in September 2009 with randomly selected Oregon hunters who had purchased big game hunting licenses/tags for the 2008 hunting season. Survey questions explored hunting practices, the meanings of and motivations for big game hunting, the constraints to big game hunting participation, and the effects of age, years of hunting...

  4. 29 CFR 1903.13 - Imminent danger.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 5 2010-07-01 2010-07-01 false Imminent danger. 1903.13 Section 1903.13 Labor Regulations... INSPECTIONS, CITATIONS AND PROPOSED PENALTIES § 1903.13 Imminent danger. Whenever and as soon as a Compliance... immediately or before the imminence of such danger can be eliminated through the enforcement...

  5. 30 CFR 56.12021 - Danger signs.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Danger signs. 56.12021 Section 56.12021 Mineral... HEALTH SAFETY AND HEALTH STANDARDS-SURFACE METAL AND NONMETAL MINES Electricity § 56.12021 Danger signs. Suitable danger signs shall be posted at all major electrical installations....

  6. 30 CFR 57.12021 - Danger signs.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Danger signs. 57.12021 Section 57.12021 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR METAL AND NONMETAL MINE SAFETY AND... Underground § 57.12021 Danger signs. Suitable danger signs shall be posted at all major...

  7. Seasonal fire danger forecasts for the USA

    Science.gov (United States)

    J. Roads; F. Fujioka; S. Chen; R. Burgan

    2005-01-01

    The Scripps Experimental Climate Prediction Center has been making experimental, near-real-time, weekly to seasonal fire danger forecasts for the past 5 years. US fire danger forecasts and validations are based on standard indices from the National Fire Danger Rating System (DFDRS), which include the ignition component (IC), energy release component (ER), burning...

  8. Cat Dilemma: Too Protected To Escape Trophy Hunting?

    OpenAIRE

    2011-01-01

    Trophy hunting is one of the most controversial issues in the field of biodiversity conservation. In particular, proponents and opponents debate fiercely over whether it poses a threat to hunted populations. Here, we show that trophy hunting constitutes a greater menace to threatened species than previously realized. Because humans value rarity, targeted species that are threatened are likely to be disproportionately hunted, thereby becoming even more vulnerable, which could eventually push t...

  9. Using the marine unicellular algae in biological monitoring

    Directory of Open Access Journals (Sweden)

    Kapkov V. I.

    2017-06-01

    Full Text Available The possibility of using marine unicellular algae from natural plankton community in biomonitoring of pollution by heavy metals has been investigated. Algae of different taxa from the Mediterranean Sea have been allocated to culture. In the laboratory the culture conditions – i. e. growth medium, temperature, photoperiod, level of artificial light and initial density – have been selected for every species. The impact of heavy metals (Hg, Cd, Cu, Pb in the form of chloride salts on the growth of axenic algae culture has been studied in the modelling experiments. The unicellular marine algae have a very short life cycle, therefore it is possible to use them in the experiments of studying the effect of anthropogenic factors at cellular and population levels on the test-object. With biomonitoring pollution of marine environment by heavy metals and others dangerous toxicants, the major indicators of algae community condition are the cellular cycle and the condition of the photosynthetic apparatus of the cell. The subsequent lysis of cells under the influence of heavy metals leads to the excretion of secondary metabolites which can essentially affect the metal toxicity. The established scales of threshold and lethal concentration of heavy metals for algae of different taxon make it possible to use the ratio of sensitive and resistant species to heavy metals as biological markers when forecasting ecological consequences of pollution of the marine environment by heavy metals. Distinctions in the resistance of different taxon to heavy metals can result in implementing the strategy of selection of test-objects depending on the purposes of the research.

  10. Preventing Philippine Eagle hunting: what are we missing?

    Directory of Open Access Journals (Sweden)

    Jayson Ibanez

    2016-11-01

    Full Text Available Two pieces of information are minimally required to conserve endangered raptor species — (i an estimate of its remaining global population, and (ii the main factors responsible for its decline. Data suggest that no more than 400 adult pairs of the Critically Endangered Philippine Eagle could remain in the wild. As to what is causing population decline, shooting and hunting continue to be the primary factor while forest habitat loss is another. This paper reflects on the growing incident of human-caused deaths in Philippine Eagles, prominently on Mindanao Island where estimates suggest more than half of the eagle’s wild population exists. By analyzing data from eagle rescues, surveys, and field monitoring through radio and satellite tracking techniques, this paper shows that shooting and trapping is a “clear and present” danger which may potentially drive the population to extinction even when suitable forest habitats still exist. Cases of death within the last decade show that the nature and/or extent of law enforcement, conservation education, and population and habitat monitoring fall short of being effective deterrents to eagle persecution in the wild. We review emerging theories on wildlife crime and cases of community-based species conservation to justify a holistic and grounded approach to preventing eagle poaching as an alternative to the conservation status quo. 

  11. 77 FR 4575 - Wildlife and Hunting Heritage Conservation Council

    Science.gov (United States)

    2012-01-30

    ... Fish and Wildlife Service Wildlife and Hunting Heritage Conservation Council AGENCY: Fish and Wildlife... public meeting of the Wildlife and Hunting Heritage Conservation Council (Council). DATES: Meeting... Wildlife and Hunting Heritage Conservation Council will hold a meeting. Background Formed in February...

  12. 76 FR 30192 - Wildlife and Hunting Heritage Conservation Council

    Science.gov (United States)

    2011-05-24

    ... Fish and Wildlife Service Wildlife and Hunting Heritage Conservation Council AGENCY: Fish and Wildlife... public meeting of the Wildlife and Hunting Heritage Conservation Council (Council). DATES: Meeting... Advisory Committee Act, 5 U.S.C. App., we announce that Wildlife and Hunting Heritage Conservation...

  13. 76 FR 66955 - Wildlife and Hunting Heritage Conservation Council

    Science.gov (United States)

    2011-10-28

    ... Fish and Wildlife Service Wildlife and Hunting Heritage Conservation Council AGENCY: Fish and Wildlife... public meeting of the Wildlife and Hunting Heritage Conservation Council (Council). DATES: Meeting... Wildlife and Hunting Heritage Conservation Council will hold a meeting. Background Formed in February...

  14. The impact of hunting on tropical mammal and bird populations

    NARCIS (Netherlands)

    Benítez-López, A.; Alkemade, R.; Schipper, A.M.; Ingram, D.J.; Verweij, P.A.; Eikelboom, J.A.J.; Huijbregts, M.A.J.

    2017-01-01

    Hunting is a major driver of biodiversity loss, but a systematic large-scale estimate of hunting-induced defaunation is lacking. We synthesized 176 studies to quantify hunting-induced declines of mammal and bird populations across the tropics. Bird and mammal abundances declined by 58% (25 to

  15. 76 FR 44729 - Migratory Bird Hunting; Proposed Frameworks for Early-Season Migratory Bird Hunting Regulations...

    Science.gov (United States)

    2011-07-26

    ... normally migrated through the State, reducing the likelihood that sandhill crane hunters would encounter..., conditional on successful monitoring being conducted as called for in the Flyway hunt plan for this...

  16. Parker River National Wildlife Refuge deer hunt : Gatehouse guidelines during hunt

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This document outlines the gatehouse guidelines for Parker River National Wildlife Refuge during the 1993 deer hunt. Key responsibilities include: checking in each...

  17. Hunting Elusive SPRITEs with Spitzer

    Science.gov (United States)

    Kohler, Susanna

    2017-05-01

    In recent years, astronomers have developed many wide-field imaging surveys in which the same targets are observed again and again. This new form of observing has allowed us to discover optical and radio transients explosive or irregular events with durations ranging from seconds to years. The dynamic infrared sky, however, has remained largely unexplored until now.Infrared ExplorationExample of a transient: SPIRITS 14ajc was visible when imaged by SPIRITS in 2014 (left) but it wasnt there during previous imaging between 2004 and 2008 (right). The bottom frame shows the difference between the two images. [Adapted from Kasliwal et al. 2017]Why hunt for infrared transients? Optical wavelengths dont allow us to observe events that are obscured, such that their own structure or their surroundings hide them from our view. Both supernovae and luminous red novae (associated with stellar mergers) are discoverable as infrared transients, and there may well be new types of transients in infrared that we havent seen before!To explore this uncharted territory, a team of scientists developed SPIRITS, the Spitzer Infrared Intensive Transients Survey. Begun in 2014, SPIRITS is a five-year long survey that uses the Spitzer Space Telescope to conduct a systematic search for mid-infrared transients in nearby galaxies.In a recent publication led by Mansi Kasliwal (Caltech and the Carnegie Institution for Science), the SPIRITS team has now detailed how their survey works and what theyve discovered in its first year.The light curves of SPRITEs (red stars) lie in the mid-infared luminosity gap between novae (orange) and supernovae (blue). [Kasliwal et al. 2017]Mystery TransientsKasliwal and collaborators used Spitzer to monitor 190 nearby galaxies. In SPIRITS first year, they found over 1958 variable stars and 43 infrared transient sources. Of these 43 transients, 21 were known supernovae, 4 were in the luminosity range of novae, and 4 had optical counterparts. The remaining 14 events

  18. 6 mln Graduates,Tough Job Hunting?

    Institute of Scientific and Technical Information of China (English)

    Maggie Zang

    2009-01-01

    @@ It is never easy for graduates to hunt their first jobs, and it becomes even harder for them due to the ongoing financial crisis, which spread over the whole world and made enterprises and various institutes cut their employment numbers. According to the incomplete statistics, over 6 million Chinese students graduate from school, are seeking a suitable position for living in 2009.

  19. American Indians, Witchcraft, and Witch-hunting.

    Science.gov (United States)

    Dennis, Matthew

    2003-01-01

    Explores North American Indian beliefs about witchcraft and witch-hunting. Focuses on the ideas and actions of the Iroquois about witchcraft. Addresses the changes in ideas of North American Indians living in the nineteenth century. Notes the transition from men and women perceived as witches to mostly females. (CMK)

  20. Concerning Hunt's New Ways of Assessing Intelligence.

    Science.gov (United States)

    Belmont, John M.

    1983-01-01

    In an earlier article, Hunt envisions the automation of intelligence testing, but he appears to be overly optimistic. He neglects to mention conceptual and practical difficulties at the interface of measurement and theory that place psychometry not in the dawn of microcomputerization, but rather more nearly in its primordium. (Author)

  1. The Simulation of Prehistoric Hunting Practices.

    Science.gov (United States)

    Rick, John W.

    1986-01-01

    Discusses use of computer simulation as an archeological tool for research and teaching involving the remains of prehistoric game animals to aid in understanding effects of various strategies of prehistoric hunters on populations of game animals. A simulation involving possible vicuna hunting strategies is described. (MBR)

  2. Nature or Nurture? Gender Roles Scavenger Hunt

    Science.gov (United States)

    Whalen, Shannon; Maurer-Starks, Suanne

    2008-01-01

    The examination of gender roles and stereotypes and their subsequent impact on sexual behavior is a concept for discussion in many sex education courses in college and sex education units in high school. This analysis often leads to a discussion of the impact of nature vs. nurture on gender roles. The gender roles scavenger hunt is an interactive…

  3. Nature or Nurture? Gender Roles Scavenger Hunt

    Science.gov (United States)

    Whalen, Shannon; Maurer-Starks, Suanne

    2008-01-01

    The examination of gender roles and stereotypes and their subsequent impact on sexual behavior is a concept for discussion in many sex education courses in college and sex education units in high school. This analysis often leads to a discussion of the impact of nature vs. nurture on gender roles. The gender roles scavenger hunt is an interactive…

  4. Hunting the Shadow, Catching the Light

    DEFF Research Database (Denmark)

    Toft, Anne Elisabeth; Nielsen, Torben

    2009-01-01

    From 28 October to 6 November 2009 twenty-one 3rd year students in interior design from Central Academy of Fine Arts (CAFA), School of Architecture, Beijing participated in the workshop Hunting the Shadow - Catching the Light. The workshop was conceived and led by the Danish architects Torben Nie...

  5. Undesirable evolutionary consequences of trophy hunting.

    Science.gov (United States)

    Coltman, David W; O'Donoghue, Paul; Jorgenson, Jon T; Hogg, John T; Strobeck, Curtis; Festa-Bianchet, Marco

    2003-12-11

    Phenotype-based selective harvests, including trophy hunting, can have important implications for sustainable wildlife management if they target heritable traits. Here we show that in an evolutionary response to sport hunting of bighorn trophy rams (Ovis canadensis) body weight and horn size have declined significantly over time. We used quantitative genetic analyses, based on a partly genetically reconstructed pedigree from a 30-year study of a wild population in which trophy hunting targeted rams with rapidly growing horns, to explore the evolutionary response to hunter selection on ram weight and horn size. Both traits were highly heritable, and trophy-harvested rams were of significantly higher genetic 'breeding value' for weight and horn size than rams that were not harvested. Rams of high breeding value were also shot at an early age, and thus did not achieve high reproductive success. Declines in mean breeding values for weight and horn size therefore occurred in response to unrestricted trophy hunting, resulting in the production of smaller-horned, lighter rams, and fewer trophies.

  6. “Coral Dominance”: A Dangerous Ecosystem Misnomer?

    Directory of Open Access Journals (Sweden)

    Peter S. Vroom

    2011-01-01

    Full Text Available Over 100 years ago, before threats such as global climate change and ocean acidification were issues engrossing marine scientists, numerous tropical reef biologists began expressing concern that too much emphasis was being placed on coral dominance in reef systems. These researchers believed that the scientific community was beginning to lose sight of the overall mix of calcifying organisms necessary for the healthy function of reef ecosystems and demonstrated that some reefs were naturally coral dominated with corals being the main organisms responsible for reef accretion, yet other healthy reef ecosystems were found to rely almost entirely on calcified algae and foraminifera for calcium carbonate accumulation. Despite these historical cautionary messages, many agencies today have inherited a coral-centric approach to reef management, likely to the detriment of reef ecosystems worldwide. For example, recent research has shown that crustose coralline algae, a group of plants essential for building and cementing reef systems, are in greater danger of exhibiting decreased calcification rates and increased solubility than corals in warmer and more acidic ocean environments. A shift from coral-centric views to broader ecosystem views is imperative in order to protect endangered reef systems worldwide.

  7. Miocene Coralline algae

    Energy Technology Data Exchange (ETDEWEB)

    Bosence, D.W.J.

    1988-01-01

    The coralline algae (Order Corallinales) were sedimentologically and ecologically important during the Miocene, a period when they were particularly abundant. The many poorly described and illustrated species and the lack of quantitative data in coralline thalli make specific determinations particularly difficult, but some species are well known and widespread in the Tethyan area. The sedimentologic importance of the Miocene coralline algae is reflected in the abundance of in-situ coralline buildups, rhodoliths, and coralline debris facies at Malta and Spain; similar sequences are known throughout the Tethyan Miocene. In-situ buildups vary from leafy crustose biostromes to walled reefs with dense coralline crusts and branches. Growth forms are apparently related to hydraulic energy. Rhodoliths vary from leafy, crustose, and open-branched forms in muddy sediments to dense, crustose, and radial-branching forms in coarse grainstones. Rhodolith form and internal structure correlate closely with hydraulic energy. Coralline genera are conservative and, as such, are useful in paleoenvironmental analysis. Of particular interest are the restricted depth ranges of recent coralline genera. More research is needed on the sedimentology, paleoecology, and systematics of the Cenozoic corallines, as they have particular value in paleoenvironmental analysis.

  8. "Logistic analysis of algae cultivation"

    NARCIS (Netherlands)

    Slegers, P.M.; Leduc, S.; Wijffels, R.H.; Straten, van G.; Boxtel, van A.J.B.

    2015-01-01

    Energy requirements for resource transport of algae cultivation are unknown. This work describes the quantitative analysis of energy requirements for water and CO2 transport. Algae cultivation models were combined with the quantitative logistic decision model ‘BeWhere’ for the regions Benelux

  9. Wolves on the hunt: The behavior of wolves hunting wild prey

    Science.gov (United States)

    Mech, L. David; Smith, Douglas W.; MacNulty, Daniel R.

    2015-01-01

    The interactions between apex predators and their prey are some of the most awesome and meaningful in nature—displays of strength, endurance, and a deep coevolutionary history. And there is perhaps no apex predator more impressive and important in its hunting—or more infamous, more misjudged—than the wolf. Because of wolves’ habitat, speed, and general success at evading humans, researchers have faced great obstacles in studying their natural hunting behaviors. The first book to focus explicitly on wolf hunting of wild prey, Wolves on the Hunt seeks to fill these gaps in our knowledge and understanding. Combining behavioral data, thousands of hours of original field observations, research in the literature, a wealth of illustrations, and—in the e-book edition and online—video segments from cinematographer Robert K. Landis, the authors create a compelling and complex picture of these hunters. The wolf is indeed an adept killer, able to take down prey much larger than itself. While adapted to hunt primarily hoofed animals, a wolf—or especially a pack of wolves—can kill individuals of just about any species. But even as wolves help drive the underlying rhythms of the ecosystems they inhabit, their evolutionary prowess comes at a cost: wolves spend one-third of their time hunting—the most time consuming of all wolf activities—and success at the hunt only comes through traveling long distances, persisting in the face of regular failure, detecting and taking advantage of deficiencies in the physical condition of individual prey, and through ceaseless trial and error, all while risking injury or death. By describing and analyzing the behaviors wolves use to hunt and kill various wild prey—including deer, moose, caribou, elk, Dall sheep, mountain goats, bison, musk oxen, arctic hares, beavers, and others—Wolves on the Hunt provides a revelatory portrait of one of nature’s greatest hunters.

  10. The danger theory: 20 years later.

    Science.gov (United States)

    Pradeu, Thomas; Cooper, Edwin L

    2012-01-01

    The self-non-self theory has dominated immunology since the 1950s. In the 1990s, Matzinger and her colleagues suggested a new, competing theory, called the "danger theory." This theory has provoked mixed acclaim: enthusiasm and criticism. Here we assess the danger theory vis-à-vis recent experimental data on innate immunity, transplantation, cancers and tolerance to foreign entities, and try to elucidate more clearly whether danger is well defined.

  11. Meteoroids are Dangerous to Spacecraft

    Science.gov (United States)

    Moorhead, Althea V.

    2017-01-01

    Meteoroids put dents in Shuttle windows much like bouncing gravel puts dents in your car's windshield. However, meteoroids move at such high speeds that they can partly vaporize the surfaces they strike! A dust particle (smaller than a meteoroid) hit the STEREO spacecraft and produced this fountain of smaller particles. When a meteoroid breaks up, its "shrapnel" can also be dangerous. Even when meteoroids don't damage a spacecraft, they can cause problems. Here, a small meteoroid bumped a camera on the Lunar Reconnaissance Orbiter (LRO), causing wiggles in this scan of the lunar surface. Meteoroids and pieces of space junk create rough edges on the outside of the Space Station that can damage space suits. The astronauts' gloves had to be thickened to help prevent them from ripping.

  12. Gulf ring algae

    Science.gov (United States)

    Although they rank among the tiniest of the microspcopic phytoplankton, coccolithophore algae aid oceanographers studying the Gulf Stream rings and the ring boundaries. The algal group could help to identify more precisely the boundary of the warm rings of water that spin off from the Gulf Stream and become independent pools of warm water in the colder waters along the northeastern U.S. coast.Coccolithophore populations in the Gulf Stream rings intrigue oceanographers for two reasons: The phytoplankton are subjected to an environment that changes every few days, and population explosions within one coccolithophore species seem to be associated with changes in the characteristics of ocean water, said Pat Blackwelder, an associate professor at the Nova Oceanographic Center in Dania, Fla. She is one of many studying the physics, chemistry, and biology of warm core rings. A special oceanography session on these rings was held at the recent AGU Fall Meeting/ASLO Winter Meeting.

  13. Identity-driven differences in stakeholder concerns about hunting wolves.

    Science.gov (United States)

    Lute, Michelle L; Bump, Adam; Gore, Meredith L

    2014-01-01

    Whereas past wolf management in the United States was restricted to recovery, managers must now contend with publicly contentious post-recovery issues including regulated hunting seasons. Understanding stakeholder concerns associated with hunting can inform stakeholder engagement, communication, and policy development and evaluation. Social identity theory (SIT) has been used to understand how groups interact, why they conflict, and how collaboration may be achieved. Applying SIT to stakeholder conflicts about wolf hunting may help delineate groups according to their concern about, support for or opposition to the policy choice of hunting wolves. Our objective was to assess concerns about hunting as a tool to resolve conflict in Michigan, using SIT as a framework. We used a mixed-modal sampling approach (e.g., paper, Internet) with wolf hunting-related public meeting participants in March 2013. Survey questions focused on 12 concerns previously identified as associated with hunting as a management tool to resolve conflict. Respondents (n  =  666) cared greatly about wolves but were divided over hunting wolves. Wolf conflicts, use of science in policy decisions, and maintaining a wolf population were the highest ranked concerns. Principle components analysis reduced concerns into three factors that explained 50.7% of total variance; concerns crystallized over justifications for hunting. General linear models revealed a lack of geographic influence on care, fear and support for hunting related to wolves. These findings challenge assumptions about regional differences and suggest a strong role for social identity in driving dichotomized public perceptions in wildlife management.

  14. Proto-cooperation: group hunting sailfish improve hunting success by alternating attacks on grouping prey.

    Science.gov (United States)

    Herbert-Read, James E; Romanczuk, Pawel; Krause, Stefan; Strömbom, Daniel; Couillaud, Pierre; Domenici, Paolo; Kurvers, Ralf H J M; Marras, Stefano; Steffensen, John F; Wilson, Alexander D M; Krause, Jens

    2016-11-16

    We present evidence of a novel form of group hunting. Individual sailfish (Istiophorus platypterus) alternate attacks with other group members on their schooling prey (Sardinella aurita). While only 24% of attacks result in prey capture, multiple prey are injured in 95% of attacks, resulting in an increase of injured fish in the school with the number of attacks. How quickly prey are captured is positively correlated with the level of injury of the school, suggesting that hunters can benefit from other conspecifics' attacks on the prey. To explore this, we built a mathematical model capturing the dynamics of the hunt. We show that group hunting provides major efficiency gains (prey caught per unit time) for individuals in groups of up to 70 members. We also demonstrate that a free riding strategy, where some individuals wait until the prey are sufficiently injured before attacking, is only beneficial if the cost of attacking is high, and only then when waiting times are short. Our findings provide evidence that cooperative benefits can be realized through the facilitative effects of individuals' hunting actions without spatial coordination of attacks. Such 'proto-cooperation' may be the pre-cursor to more complex group-hunting strategies.

  15. Fuel From Algae: Scaling and Commercialization of Algae Harvesting Technologies

    Energy Technology Data Exchange (ETDEWEB)

    None

    2010-01-15

    Broad Funding Opportunity Announcement Project: Led by CEO Ross Youngs, AVS has patented a cost-effective dewatering technology that separates micro-solids (algae) from water. Separating micro-solids from water traditionally requires a centrifuge, which uses significant energy to spin the water mass and force materials of different densities to separate from one another. In a comparative analysis, dewatering 1 ton of algae in a centrifuge costs around $3,400. AVS’s Solid-Liquid Separation (SLS) system is less energy-intensive and less expensive, costing $1.92 to process 1 ton of algae. The SLS technology uses capillary dewatering with filter media to gently facilitate water separation, leaving behind dewatered algae which can then be used as a source for biofuels and bio-products. The biomimicry of the SLS technology emulates the way plants absorb and spread water to their capillaries.

  16. Neuroprotective effects of marine algae.

    Science.gov (United States)

    Pangestuti, Ratih; Kim, Se-Kwon

    2011-01-01

    The marine environment is known as a rich source of chemical structures with numerous beneficial health effects. Among marine organisms, marine algae have been identified as an under-exploited plant resource, although they have long been recognized as valuable sources of structurally diverse bioactive compounds. Presently, several lines of studies have provided insight into biological activities and neuroprotective effects of marine algae including antioxidant, anti-neuroinflammatory, cholinesterase inhibitory activity and the inhibition of neuronal death. Hence, marine algae have great potential to be used for neuroprotection as part of pharmaceuticals, nutraceuticals and functional foods. This contribution presents an overview of marine algal neuroprotective effects and their potential application in neuroprotection.

  17. Transgenic algae engineered for higher performance

    Energy Technology Data Exchange (ETDEWEB)

    Unkefer, Pat J; Anderson, Penelope S; Knight, Thomas J

    2014-10-21

    The present disclosure relates to transgenic algae having increased growth characteristics, and methods of increasing growth characteristics of algae. In particular, the disclosure relates to transgenic algae comprising a glutamine phenylpyruvate transaminase transgene and to transgenic algae comprising a glutamine phenylpyruvate transaminase transgene and a glutamine synthetase.

  18. The Dangers of Educated Girls and Women

    Science.gov (United States)

    John, Vaughn M.

    2016-01-01

    Why do educated girls and women constitute a danger in some societies and for this face extreme danger in their educational endeavours? This article argues that historical and contemporary educational discrimination of girls and women is the hallmark of a violently patriarchal society, and this stubborn injustice is exacerbated under conditions of…

  19. Community Violent Crime Rates and School Danger.

    Science.gov (United States)

    Bowen, Gary L.; Van Dorn, Richard A.

    2002-01-01

    This study investigated the association between community violent crime rates and middle school students' (N=857) perceptions of school danger. Findings indicate that community crime rates are associated with male middle school students' reports of school danger but not female students' reports. Discusses community- and school-based prevention…

  20. Biological importance of marine algae.

    Science.gov (United States)

    El Gamal, Ali A

    2010-01-01

    Marine organisms are potentially prolific sources of highly bioactive secondary metabolites that might represent useful leads in the development of new pharmaceutical agents. Algae can be classified into two main groups; first one is the microalgae, which includes blue green algae, dinoflagellates, bacillariophyta (diatoms)… etc., and second one is macroalgae (seaweeds) which includes green, brown and red algae. The microalgae phyla have been recognized to provide chemical and pharmacological novelty and diversity. Moreover, microalgae are considered as the actual producers of some highly bioactive compounds found in marine resources. Red algae are considered as the most important source of many biologically active metabolites in comparison to other algal classes. Seaweeds are used for great number of application by man. The principal use of seaweeds as a source of human food and as a source of gums (phycocollides). Phycocolloides like agar agar, alginic acid and carrageenan are primarily constituents of brown and red algal cell walls and are widely used in industry.

  1. Pediatric Ramsay Hunt syndrome: A rare clinical entity

    Directory of Open Access Journals (Sweden)

    Natashya Hilda Sima

    2016-01-01

    Full Text Available Ramsay Hunt syndrome is a rare cause of facial nerve paralysis in children, caused due to reactivation of latent Varicella–Zoster virus within the geniculate ganglion. In addition to the facial nerve, Ramsay Hunt syndrome may also affect the vestibulocochlear nerve leading to inner ear dysfunction and in severe case may also involve other cranial nerves. We report a case of Ramsay Hunt syndrome in a 15-year-old child.

  2. Wildlife reserves, populations and hunting outcome with smart wildlife

    DEFF Research Database (Denmark)

    Jensen, Frank; Jacobsen, Jette Bredahl; Thorsen, Bo Jellesmark

    2014-01-01

    There is a very small natural resource economic literature on natural reserves and hunting that consider potential stress effects of hunting on the game population and its migration in and out of hunting and reserve areas. In this literature private optimal solution with and without stress effect...... from the wildlife reserve to the hunting area in the social optimum. The total effect is, therefore, ambiguous. For the private optimum open-access is assumed and exactly the same results arise as in the social optimum when comparing a situation with and without stress effects....

  3. [Dangerous sharks in tropical seas].

    Science.gov (United States)

    Maslin, J; Menard, G; Drouin, C; Pollet, L

    2000-01-01

    Sightseeing travel in tropical zones is a growing industry. The risks incurred by travelers depend on the destination, duration of stay, individual behavior, and type of leisure activity. Water sports expose visitors to encounters with dangerous marine animals. Shark attacks are rare but always serious occurrences. Divers should handle any shark, regardless of size, with due precaution. Prevention of shark attack depends on avoiding encounters by not attracting the attention of the shark and knowing the proper attitude to adopt in case an encounter should occur. Active and passive protection can be used, but each method has advantages and disadvantages depending on the situation. Rescue operations are difficult due to the gravity of injuries and their occurrence in a marine environment. This along with the nature of the aggressor explain that many attacks are immediately fatal. Wounds are often deep with involvement of bone, blood vessels, and nerves. A possible source of complication in survivors is infection, which can involve uncommon microorganisms associated with bacteria in sharks mouth or marine environment.

  4. Specialized insulin is used for chemical warfare by fish-hunting cone snails.

    Science.gov (United States)

    Safavi-Hemami, Helena; Gajewiak, Joanna; Karanth, Santhosh; Robinson, Samuel D; Ueberheide, Beatrix; Douglass, Adam D; Schlegel, Amnon; Imperial, Julita S; Watkins, Maren; Bandyopadhyay, Pradip K; Yandell, Mark; Li, Qing; Purcell, Anthony W; Norton, Raymond S; Ellgaard, Lars; Olivera, Baldomero M

    2015-02-10

    More than 100 species of venomous cone snails (genus Conus) are highly effective predators of fish. The vast majority of venom components identified and functionally characterized to date are neurotoxins specifically targeted to receptors, ion channels, and transporters in the nervous system of prey, predators, or competitors. Here we describe a venom component targeting energy metabolism, a radically different mechanism. Two fish-hunting cone snails, Conus geographus and Conus tulipa, have evolved specialized insulins that are expressed as major components of their venoms. These insulins are distinctive in having much greater similarity to fish insulins than to the molluscan hormone and are unique in that posttranslational modifications characteristic of conotoxins (hydroxyproline, γ-carboxyglutamate) are present. When injected into fish, the venom insulin elicits hypoglycemic shock, a condition characterized by dangerously low blood glucose. Our evidence suggests that insulin is specifically used as a weapon for prey capture by a subset of fish-hunting cone snails that use a net strategy to capture prey. Insulin appears to be a component of the nirvana cabal, a toxin combination in these venoms that is released into the water to disorient schools of small fish, making them easier to engulf with the snail's distended false mouth, which functions as a net. If an entire school of fish simultaneously experiences hypoglycemic shock, this should directly facilitate capture by the predatory snail.

  5. Specialized insulin is used for chemical warfare by fish-hunting cone snails

    Science.gov (United States)

    Safavi-Hemami, Helena; Gajewiak, Joanna; Karanth, Santhosh; Robinson, Samuel D.; Ueberheide, Beatrix; Douglass, Adam D.; Schlegel, Amnon; Imperial, Julita S.; Watkins, Maren; Bandyopadhyay, Pradip K.; Yandell, Mark; Li, Qing; Purcell, Anthony W.; Norton, Raymond S.; Ellgaard, Lars; Olivera, Baldomero M.

    2015-01-01

    More than 100 species of venomous cone snails (genus Conus) are highly effective predators of fish. The vast majority of venom components identified and functionally characterized to date are neurotoxins specifically targeted to receptors, ion channels, and transporters in the nervous system of prey, predators, or competitors. Here we describe a venom component targeting energy metabolism, a radically different mechanism. Two fish-hunting cone snails, Conus geographus and Conus tulipa, have evolved specialized insulins that are expressed as major components of their venoms. These insulins are distinctive in having much greater similarity to fish insulins than to the molluscan hormone and are unique in that posttranslational modifications characteristic of conotoxins (hydroxyproline, γ-carboxyglutamate) are present. When injected into fish, the venom insulin elicits hypoglycemic shock, a condition characterized by dangerously low blood glucose. Our evidence suggests that insulin is specifically used as a weapon for prey capture by a subset of fish-hunting cone snails that use a net strategy to capture prey. Insulin appears to be a component of the nirvana cabal, a toxin combination in these venoms that is released into the water to disorient schools of small fish, making them easier to engulf with the snail’s distended false mouth, which functions as a net. If an entire school of fish simultaneously experiences hypoglycemic shock, this should directly facilitate capture by the predatory snail. PMID:25605914

  6. Hunting for Knowledge: Using a Scavenger Hunt to Orient Graduate Veterinary Students

    Science.gov (United States)

    Pike, Caitlin; Alpi, Kristine M.

    2015-01-01

    Active participation in orientation is hoped to increase understanding and use of library resources and services beyond the effect of tours or welcome lectures. Timed scavenger hunts have been used to orient undergraduate and medical students to academic libraries. This report describes the planning, execution, and evaluation of an untimed…

  7. 76 FR 59298 - Migratory Bird Hunting; Migratory Bird Hunting Regulations on Certain Federal Indian Reservations...

    Science.gov (United States)

    2011-09-26

    ... Survey; population status reports for blue-winged teal, sandhill cranes, woodcock, mourning doves, white... has reviewed this rule under Executive Order 12866. OMB bases its determination of regulatory... of age or older must carry on his/her person a valid Migratory Bird Hunting and Conservation...

  8. 75 FR 52398 - Migratory Bird Hunting; Proposed Frameworks for Late-Season Migratory Bird Hunting Regulations

    Science.gov (United States)

    2010-08-25

    .... Pintails vi. Scaup vii. Mottled ducks viii. Wood ducks ix. Youth Hunt 2. Sea Ducks 3. Mergansers 4. Canada... year's frameworks. Due to the comprehensive nature of the annual review of the frameworks performed by... options had increased harvest pressure; however, the ability to detect the impact of zone/split...

  9. 77 FR 23093 - Migratory Bird Hunting; Proposed 2012-13 Migratory Game Bird Hunting Regulations (Preliminary...

    Science.gov (United States)

    2012-04-17

    ... viii. Wood Ducks ix. Youth Hunt x. Mallard Management Units xi. Other 2. Sea Ducks 3. Mergansers 4... breeding population size) did not perform adequately, resulting in a consistent over-prediction of mallard... increased harvest pressure; however, the ability to detect the impact of zone/split configurations was poor...

  10. 77 FR 49867 - Migratory Bird Hunting; Proposed Frameworks for Late-Season Migratory Bird Hunting Regulations

    Science.gov (United States)

    2012-08-17

    .... Mottled Ducks viii. Wood Ducks ix. Youth Hunt x. Mallard Management Units xi. Other 2. Sea Ducks 3... year's frameworks. Due to the comprehensive nature of the annual review of the frameworks performed by... harvest pressure, in particular the Tall Grass Prairie (TGP) population. We recognize the continuing...

  11. 78 FR 52337 - Migratory Bird Hunting; Proposed Frameworks for Late-Season Migratory Bird Hunting Regulations

    Science.gov (United States)

    2013-08-22

    .... Mottled ducks viii. Wood ducks ix. Youth Hunt x. Mallard Management Units xi. Other 2. Sea Ducks 3... frameworks. Due to the comprehensive nature of the annual review of the frameworks performed by the Councils... pressure. We recognize the continuing problems posed by increasing numbers of resident Canada geese and...

  12. 75 FR 44855 - Migratory Bird Hunting; Proposed Frameworks for Early-Season Migratory Bird Hunting Regulations...

    Science.gov (United States)

    2010-07-29

    ... harvest of MCP cranes in hunt areas outside of the Central Flyway (Arizona, Pacific Flyway portion of New... North American MCP sport harvest, including crippling losses, was 25,731 birds, which was a 39 percent... options for providing production States an opportunity to harvest teal outside the regular duck...

  13. Hunting for Knowledge: Using a Scavenger Hunt to Orient Graduate Veterinary Students

    Science.gov (United States)

    Pike, Caitlin; Alpi, Kristine M.

    2015-01-01

    Active participation in orientation is hoped to increase understanding and use of library resources and services beyond the effect of tours or welcome lectures. Timed scavenger hunts have been used to orient undergraduate and medical students to academic libraries. This report describes the planning, execution, and evaluation of an untimed…

  14. Traditional Saami hunting in relation to drum motifs of animals and hunting

    Directory of Open Access Journals (Sweden)

    Rolf Kjellström

    1991-01-01

    Full Text Available The focus of this paper is on the traditional Saami hunting in relation to the animal and hunting motifs on their drum, more specifially the southern Saami drums. One may wonder if it is possible for anyone to interpret a picture unconditionally. One has a certain ground of one's own to stand on and the question arises of whether this is the correct position, when -as in the present case — we approach another culture. We naturally include the experiences of our own culture in interpretations of another culture. The animal which is the commonest species on the southern Saami drums, is the reindeer. Other animals that occur are elks, wolves, beavers, foxes, snakes, among others. Considering the Saamis' hunting weapons, the most important of these were the bow and arrow, and the spear or spear shaft. Of these weapons it is the bow which is most often portrayed on drums. Also some trapping implement like a gin may appear on a drum, but in general we have little or no information about hunting or trapping methods at all.

  15. 77 FR 54451 - Migratory Bird Hunting; Migratory Bird Hunting Regulations on Certain Federal Indian Reservations...

    Science.gov (United States)

    2012-09-05

    ... flocks were 5.0 times more likely to fly within gun range ( http://www.fws.gov/migratorybirds... cranes. Crane carcass tags are required prior to hunting. Sora and Virginia Rails: All Areas. Season Dates: Begin September 1 and end November 25, 2012. Daily Bag Limit: 25 sora and Virginia rails,...

  16. 78 FR 53217 - Migratory Bird Hunting; Migratory Bird Hunting Regulations on Certain Federal Indian Reservations...

    Science.gov (United States)

    2013-08-28

    ... goose flocks were 5.0 times more likely to fly within gun range ( http://www.regulations.gov at Docket... carcass tags are required prior to hunting. Sora and Virginia Rails: All Areas Season Dates: Begin September 1 and end November 24, 2013. Daily Bag Limit: 25 sora and Virginia rails, singly or in...

  17. 78 FR 58233 - Migratory Bird Hunting; Migratory Bird Hunting Regulations on Certain Federal Indian Reservations...

    Science.gov (United States)

    2013-09-23

    ... would have an annual effect of $100 million or more on the economy. Executive Order 13563 reaffirms the... effect on the economy of $100 million or more. However, because this rule establishes hunting seasons, we... insufficient time to select season dates and limits; to communicate those selections to us; and to establish...

  18. Hunting for Livelihood in Northeast Gabon: Patterns, Evolution, and Sustainability

    Directory of Open Access Journals (Sweden)

    Robert Nasi

    2008-12-01

    Full Text Available We suggest an ethno-biological approach to analyze the cultural and social drivers of hunting activities and assess sustainability in villages near Makokou, northeast Gabon, based on interviews with hunters, participatory mapping of hunting territories, and daily records of offtakes for 1 yr. Hunting in villages of northeast Gabon is practiced for both local consumption and cash income to cover basic family expenses. There appears to be no clear tendency to abandon subsistence hunting for commercial hunting as in other regions of Africa. Cultural and socioeconomic factors explain the temporal and spatial variation in hunting activities. Hunting increases in the dry season during circumcision ceremonies, when it is practiced mainly at > 10 km from villages, and decreases during the rainy season because most hunters are occupied by other economic activities. Degraded forest such as secondary regrowth supplies 20% of the animals killed and the greatest diversity of species at short distances from villages. Mature forest supplies the species with the greatest commercial value, e.g., red river hog (Potamochoerus porcus, and is the preferred source of meat for traditional ceremonies. In the last 15 yr, hunting patterns have changed rapidly, mainly because of the spread of gun hunting, which had serious implications for the nature of offtakes. Our results suggest that there is potential to allow hunting for resistant species such as blue duiker (Cephalophus monticola and African brush-tailed porcupine (Atherurus africanus. Other species such as red river hog and small diurnal monkeys require more attention. Specific management systems could be discussed in participatory hunting management plans to identify possible solutions to maintain the population levels of the more critical species.

  19. A Pediatric Case of Ramsay Hunt Syndrome

    Directory of Open Access Journals (Sweden)

    Serhan Derin

    2014-01-01

    Full Text Available Ramsay Hunt syndrome (RHS is characterized by facial paralysis, inner ear dysfunction, periauricular pain, and herpetiform vesicles. The reported incidence in children is 2.7/100,000. The pathogenesis involves the reactivation of latent varicella zoster virus (VZV in the geniculate ganglion of the facial nerve. The recovery rate is better in children than in adults. This paper discusses a 12-year-old girl with a rare case of peripheral facial paralysis caused by RHS and reviews the literature.

  20. Hunting: Death and the signs of life

    DEFF Research Database (Denmark)

    Østergaard, Jens Sand

    2013-01-01

    In this essay I have reworked the question of death in hunting by defining it as an activity whose nature implies a relation of being by living the death of the animal. Once this relation is understood more fully, it becomes obvious that the animal is not an isolated totality of relations......, but is instead a relative being whose being merits a moral obligation on the part of the hunter to make the manner of its death worthy of the manner of its being....

  1. Síndrome de Tolosa-Hunt

    OpenAIRE

    2016-01-01

    RESUMO A Síndrome de Tolosa Hunt é uma doença rara, cuja etiopatogenia é desconhecida. Apresenta-se como uma oftalmoplegia dolorosa de um ou mais nervos cranianos oculomotores, que regride espontaneamente e responde bem ao tratamento com corticoides. O presente estudo trata-se de um relato de caso de um paciente que apresentou seguidos casos de oftalmoplegias dolorosas, envolvendo o nervo oculomotor e o abducente sendo tratado com corticoesteroides obteve uma resposta dramática. Objetiva-se a...

  2. Dendritic Cells as Danger-Recognizing Biosensors

    Directory of Open Access Journals (Sweden)

    Seokmann Hong

    2009-08-01

    Full Text Available Dendritic cells (DCs are antigen presenting cells that are characterized by a potent capacity to initiate immune responses. DCs comprise several subsets with distinct phenotypes. After sensing any danger(s to the host via their innate immune receptors such as Toll-like receptors, DCs become mature and subsequently present antigens to CD4+ T cells. Since DCs possess the intrinsic capacity to polarize CD4+ helper cells, it is critical to understand the immunological roles of DCs for clinical applications. Here, we review the different DC subsets, their danger-sensing receptors and immunological functions. Furthermore, the cytokine reporter mouse model for studying DC activation is introduced.

  3. The Evolution of Lateralization in Group Hunting Sailfish

    DEFF Research Database (Denmark)

    Kurvers, Ralf H J M; Krause, Stefan; Viblanc, Paul E

    2017-01-01

    of a lack of population-level lateralization. Our results present a novel benefit of group hunting: by alternating attacks, individual-level attack lateralization can evolve, without the negative consequences of individual-level predictability. More generally, our results suggest that group hunting...... in predators might provide more suitable conditions for the evolution of strategy diversity compared to solitary life....

  4. 78 FR 3446 - Migratory Bird Hunting; Service Regulations Committee Meeting

    Science.gov (United States)

    2013-01-16

    ... Fish and Wildlife Service Migratory Bird Hunting; Service Regulations Committee Meeting AGENCY: Fish... issues concerning the 2013-14 migratory bird hunting regulations. DATES: The meeting will be held..., Division of Migratory Bird Management, U.S. Fish and Wildlife Service, Department of the Interior,...

  5. 78 FR 78377 - Migratory Bird Hunting; Service Regulations Committee Meeting

    Science.gov (United States)

    2013-12-26

    ... Fish and Wildlife Service RIN 1018-AZ80 Migratory Bird Hunting; Service Regulations Committee Meeting... preliminary issues concerning the 2014-15 migratory bird hunting regulations. DATES: The meeting will be held..., Division of Migratory Bird Management, U.S. Fish and Wildlife Service, Department of the Interior,...

  6. 77 FR 1718 - Migratory Bird Hunting; Service Regulations Committee Meeting

    Science.gov (United States)

    2012-01-11

    ... Fish and Wildlife Service Migratory Bird Hunting; Service Regulations Committee Meeting AGENCY: Fish... issues concerning the 2012-13 migratory bird hunting regulations. DATES: The meeting will be held... CONTACT: Chief, Division of Migratory Bird Management, U.S. Fish and Wildlife Service, Department of...

  7. The impact of hunting on tropical mammal and bird populations

    NARCIS (Netherlands)

    Benítez-López, A.; Alkemade, R.; Schipper, A. M.; Ingram, D. J.; Verweij, P. A.; Eikelboom, J. A. J.; Huijbregts, M. A. J.

    2017-01-01

    As the human population grows and increasingly encroaches on remaining wildlife habitat, hunting threatens many species. Benítez-López et al. conducted a large-scale meta-analysis of hunting trends and impacts across the tropics (see the Perspective by Brashares and Gaynor). Bird and mammal

  8. 50 CFR 20.133 - Hunting regulations for crows.

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 6 2010-10-01 2010-10-01 false Hunting regulations for crows. 20.133... Hunting regulations for crows. (a) Crows may be taken, possessed, transported, exported, or imported, only.... (b) Except in the State of Hawaii, where no crows shall be taken, States may by statute or regulation...

  9. Demand for resident hunting in the southeastern United States

    Science.gov (United States)

    Neelam Poudyal; Seong Hoon Cho; J. Michael Bowker

    2008-01-01

    We modeled hunting demand among resident hunters in the Southeastern United States. Our model revealed that future hunting demand will likely decline in this region. Population growth in the region will increase demand but structural change in the region's demography (e.g., "browning" and "aging "), along with declining forestland access will...

  10. Cat dilemma: too protected to escape trophy hunting?

    Directory of Open Access Journals (Sweden)

    Lucille Palazy

    Full Text Available Trophy hunting is one of the most controversial issues in the field of biodiversity conservation. In particular, proponents and opponents debate fiercely over whether it poses a threat to hunted populations. Here, we show that trophy hunting constitutes a greater menace to threatened species than previously realized. Because humans value rarity, targeted species that are threatened are likely to be disproportionately hunted, thereby becoming even more vulnerable, which could eventually push them to extinction. With the ten felid species currently hunted for their trophies, we present evidence that (1 the number of killed individuals increases with time, in several cases exponentially, despite population declines, (2 the price of trophies is strongly dependent on species protection status, (3 changes of protection status coincide with counter-intuitive changes of hunting pressures: protection intensification with augmented hunting effort, and protection relaxation with lower effort. This suggests an over-exploitation of trophy-hunted felids and the necessity of a better quota system coupled with reconsidered protection methods.

  11. Cat dilemma: too protected to escape trophy hunting?

    Science.gov (United States)

    Palazy, Lucille; Bonenfant, Christophe; Gaillard, Jean-Michel; Courchamp, Franck

    2011-01-01

    Trophy hunting is one of the most controversial issues in the field of biodiversity conservation. In particular, proponents and opponents debate fiercely over whether it poses a threat to hunted populations. Here, we show that trophy hunting constitutes a greater menace to threatened species than previously realized. Because humans value rarity, targeted species that are threatened are likely to be disproportionately hunted, thereby becoming even more vulnerable, which could eventually push them to extinction. With the ten felid species currently hunted for their trophies, we present evidence that (1) the number of killed individuals increases with time, in several cases exponentially, despite population declines, (2) the price of trophies is strongly dependent on species protection status, (3) changes of protection status coincide with counter-intuitive changes of hunting pressures: protection intensification with augmented hunting effort, and protection relaxation with lower effort. This suggests an over-exploitation of trophy-hunted felids and the necessity of a better quota system coupled with reconsidered protection methods.

  12. Scavenger hunt in the CERN Computing Centre

    CERN Multimedia

    CERN Bulletin

    2013-01-01

    Hidden among the racks of servers and disks in the CERN Computing Centre, you’ll find Hawaiian dancers, space aliens, gorillas… all LEGO® figurines! These characters were placed about the Centre for the arrival of Google’s Street View team for the world to discover.   PLEASE NOTE THAT THE COMPETITION IS OVER. ONLY FOR REFERENCE, HERE IS THE ORIGINAL ARTICLE. We’re pleased to announce our first global scavenger hunt! Spot three LEGO® figurines using Google’s Street View and you’ll be entered to win a gift of your choice from our CERN Gift Guide. A LEGO® figurine in the CERN Computing Centre, as seen on Google Street View. Here are the details: Find at least three LEGO® figurines hidden around the CERN Computing Centre using Google Street View.   Take screencaps of the figurines and e-mail the pictures to TreasureHunt-ComputingCentre@cern.ch. This email is no longer active.   The...

  13. Microbe- and danger-induced inflammation.

    Science.gov (United States)

    Broggi, Achille; Granucci, Francesca

    2015-02-01

    The ability of the immune system to give rise to an effective response against pathogens while maintaining tolerance towards self-tissues has always been an object of keen interest for immunologist. Over the years, different theories have been proposed to explain if and how the immune system is able to discriminate between self and non-self, including the Infectious Non-self theory from Charles Janeway and Polly Matzinger's Danger theory. Nowadays we know Janeway's theory is largely true, however the immune system does respond to injured, stressed and necrotic cells releasing danger signals (DAMPs) with a potent inflammatory response. To avoid unwanted prolonged autoimmune reactions, though, danger-induced inflammation should be tightly regulated. In the present review we discuss how prototypic DAMPs are able to induce inflammation and the peculiarity of danger-induced inflammation, as opposed to a complete immune response to fight pathogen invasions.

  14. (Neuro)predictions, Dangerousness, and Retributivism

    DEFF Research Database (Denmark)

    Petersen, Thomas Søbirk

    2014-01-01

    Through the criminal justice system so-called dangerous offenders are, besides the offence that they are being convicted of and sentenced to, also punished for acts that they have not done but that they are believe to be likely to commit in the future. The aim of this paper is to critically discuss...... whether some adherents of retributivism give a plausible rationale for punishing offenders more harshly if they, all else being equal, by means of predictions are believed to be more dangerous than other offenders. While consequentialism has no problem, at least in principle, with this use of predictions...... to be dangerous in the future more harshly than non-dangerous offenders. After having reconstructed their arguments in detail, it will be argued that both Duff's and Morse's attempts to give a retributivistic justification have several shortcomings....

  15. Inherent Dangers in Orogenital Sex During Pregnancy

    African Journals Online (AJOL)

    dangerous, causing even the death of the women. We carried out a search of ... KEY WORDS: Air embolism, cunnilingus, orogenital sex, pregnancy ... contained multiple case report. ... The average age of women was 20.2 years, and only one.

  16. Opioids and Alcohol a Dangerous Cocktail

    Science.gov (United States)

    ... taken opioids previously. Oxycodone, an ingredient in the brand-name drugs OxyContin and Percocet, is widely prescribed ... in the journal Anesthesiology . "We hope to increase awareness regarding the dangers of prescription opioids, the increased ...

  17. Xylitol and Your Dog: Danger, Paws Off

    Science.gov (United States)

    ... Devices Radiation-Emitting Products Vaccines, Blood & Biologics Animal & Veterinary Cosmetics Tobacco ... Foods Containing Xylitol Why is Xylitol Dangerous to Dogs, but Not People? Symptoms to Look For in Your Dog What Can ...

  18. Quantity judgements in the context of risk/reward decision making in striped field mice: First count, then hunt

    Directory of Open Access Journals (Sweden)

    Sofia ePanteleeva

    2013-02-01

    Full Text Available We simulated the vital situation of risky hunting in the striped field mouse Apodemus agrarius in order to examine whether these animals are able to make a choice between small and large quantities of live prey (ants. In the first (preliminary experiment we investigated to what extent mice were interested in ants as a live prey and how their hunting activity depended on the quantity of these edible but rather aggressive insects. We placed mice one by one into arenas together with ant groups of different size, from 10 to 60. Surprisingly, animals, both wild-caught and laboratory-reared, displayed rather skilled predatory attacks: mice killed and ate from 0.37±003 to 4±0.5 ants per minute. However, there was a threshold number of ants in the arenas when rodents expressed signs of discomfort and started to panic, because ants bit them. This threshold corresponds to the dynamic density (about 400 individuals per m 2per min in the vicinity of anthills and ants’ routes in natural environment. In the second experiment mice had to choose between different quantities of ants placed in two transparent tunnels. Ants here served both as food items and as a source of danger. As far as we know, this is the first experimental paradigm based on evaluation of quantity judgements in the context of risk/reward decision making where the animals face a trade-off between the hedonistic value of the prey and the danger it presents.. We found that when mice have to choose between 5 vs 15, 5 vs 30 and 10 vs 30 ants, they always tend to prefer the smaller quantity, thus displaying the capacity for distinguishing more from less in order to ensure comfortable hunting. The results of this study are ecologically relevant as they reflect situations and challenges faced by free-living small rodents.

  19. Quantity judgments in the context of risk/reward decision making in striped field mice: first "count," then hunt.

    Science.gov (United States)

    Panteleeva, Sofia; Reznikova, Zhanna; Vygonyailova, Olga

    2013-01-01

    We simulated the situation of risky hunting in the striped field mouse Apodemus agrarius in order to examine whether these animals are able to make a choice between small and large quantities of live prey (ants). In the first (preliminary) experiment we investigated to what extent mice were interested in ants as a live prey and how their hunting activity depended on the quantity of these edible but rather aggressive insects. We placed mice one by one into arenas together with ant groups of different quantities, from 10 to 60. Surprisingly, animals, both wild-caught and laboratory-reared, displayed rather skilled predatory attacks: mice killed and ate from 0.37 ± 003 to 4 ± 0.5 ants per minute. However, there was a threshold number of ants in the arenas when rodents expressed signs of discomfort and started to panic, likely because ants bit them. This threshold corresponds to the dynamic density (about 400 individuals per m(2) per min) in the vicinity of anthills and ants' routes in natural environment. In the second experiment mice had to choose between different quantities of ants placed in two transparent tunnels. Ants here served both as food items and as a source of danger. As far as we know, this is the first experimental paradigm based on evaluation of quantity judgments in the context of risk/reward decision making where the animals face a trade-off between the hedonistic value of the prey and the danger it presents. We found that when mice have to choose between 5 vs. 15, 5 vs. 30, and 10 vs. 30 ants, they always tend to prefer the smaller quantity, thus displaying the capacity for distinguishing more from less in order to ensure comfortable hunting. The results of this study are ecologically relevant as they reflect situations and challenges faced by free-living small rodents.

  20. Dangerous effects of methane gas in atmosphere

    OpenAIRE

    Mohajan, Haradhan

    2011-01-01

    This paper discusses the effects of methane gas which causes sever global warming in the atmosphere. Global warming becomes main issue in economics in the 21st century. Because global climate change becomes more dangerous and every nation realized that this is due to greenhouse gas emissions. Methane is dangerous greenhouse gas, since it is 21 times more global warming potential than carbon dioxide. All the nations talk about the reduction of only carbon dioxide and no nation stress on methan...

  1. Identity-driven differences in stakeholder concerns about hunting wolves.

    Directory of Open Access Journals (Sweden)

    Michelle L Lute

    Full Text Available Whereas past wolf management in the United States was restricted to recovery, managers must now contend with publicly contentious post-recovery issues including regulated hunting seasons. Understanding stakeholder concerns associated with hunting can inform stakeholder engagement, communication, and policy development and evaluation. Social identity theory (SIT has been used to understand how groups interact, why they conflict, and how collaboration may be achieved. Applying SIT to stakeholder conflicts about wolf hunting may help delineate groups according to their concern about, support for or opposition to the policy choice of hunting wolves. Our objective was to assess concerns about hunting as a tool to resolve conflict in Michigan, using SIT as a framework. We used a mixed-modal sampling approach (e.g., paper, Internet with wolf hunting-related public meeting participants in March 2013. Survey questions focused on 12 concerns previously identified as associated with hunting as a management tool to resolve conflict. Respondents (n  =  666 cared greatly about wolves but were divided over hunting wolves. Wolf conflicts, use of science in policy decisions, and maintaining a wolf population were the highest ranked concerns. Principle components analysis reduced concerns into three factors that explained 50.7% of total variance; concerns crystallized over justifications for hunting. General linear models revealed a lack of geographic influence on care, fear and support for hunting related to wolves. These findings challenge assumptions about regional differences and suggest a strong role for social identity in driving dichotomized public perceptions in wildlife management.

  2. Neuroprotective Effects of Marine Algae

    Directory of Open Access Journals (Sweden)

    Se-Kwon Kim

    2011-05-01

    Full Text Available The marine environment is known as a rich source of chemical structures with numerous beneficial health effects. Among marine organisms, marine algae have been identified as an under-exploited plant resource, although they have long been recognized as valuable sources of structurally diverse bioactive compounds. Presently, several lines of studies have provided insight into biological activities and neuroprotective effects of marine algae including antioxidant, anti-neuroinflammatory, cholinesterase inhibitory activity and the inhibition of neuronal death. Hence, marine algae have great potential to be used for neuroprotection as part of pharmaceuticals, nutraceuticals and functional foods. This contribution presents an overview of marine algal neuroprotective effects and their potential application in neuroprotection.

  3. Polysaccharides of the red algae.

    Science.gov (United States)

    Usov, Anatolii I

    2011-01-01

    Red algae (Rhodophyta) are known as the source of unique sulfated galactans, such as agar, agarose, and carrageenans. The wide practical uses of these polysaccharides are based on their ability to form strong gels in aqueous solutions. Gelling polysaccharides usually have molecules built up of repeating disaccharide units with a regular distribution of sulfate groups, but most of the red algal species contain more complex galactans devoid of gelling ability because of various deviations from the regular structure. Moreover, several red algae may contain sulfated mannans or neutral xylans instead of sulfated galactans as the main structural polysaccharides. This chapter is devoted to a description of the structural diversity of polysaccharides found in the red algae, with special emphasis on the methods of structural analysis of sulfated galactans. In addition to the structural information, some data on the possible use of red algal polysaccharides as biologically active polymers or as taxonomic markers are briefly discussed. Copyright © 2011 Elsevier Inc. All rights reserved.

  4. Algae Bloom in a Lake

    Directory of Open Access Journals (Sweden)

    David Sanabria

    2008-01-01

    Full Text Available The objective of this paper is to determine the likelihood of an algae bloom in a particular lake located in upstate New York. The growth of algae in this lake is caused by a high concentration of phosphorous that diffuses to the surface of the lake. Our calculations, based on Fick's Law, are used to create a mathematical model of the driving force of diffusion for phosphorous. Empirical observations are also used to predict whether the concentration of phosphorous will diffuse to the surface of this lake within a specified time and under specified conditions.

  5. Cyanobacteria: algas productoras de toxinas

    OpenAIRE

    Echenique, Ricardo Omar; Giannuzzi, Leda; Andrinolo, Darío

    2007-01-01

    El de las Cyanobacteria es un grupo de algas con características particulares. Por su coloración, dada por los pigmentos que posee, comúnmente se las conoce como algas verde-azules. Según registros fósiles, son los primeros organismos fotosintéticos aparecidos en nuestro planeta (3000-3500 millones de años), por esto se los consideran los responsables de originar la atmósfera inicial que posibilitó la evolución del resto de los seres vivos habitantes de la Tierra. Estos organismos, desde micr...

  6. Is red the colour of danger? Testing an implicit red-danger association.

    Science.gov (United States)

    Pravossoudovitch, Karyn; Cury, Francois; Young, Steve G; Elliot, Andrew J

    2014-01-01

    Research using participant's self-reports has documented a link between red and danger. In this research, we used two different variants of a Stroop word evaluation task to test for the possibility of an implicit red-danger association using carefully controlled colour stimuli (equated on lightness and chroma). Experiment 1, using words as stimuli, yielded strong evidence of a link between red and danger, and weaker evidence of a green-safety association. Experiment 2, using symbols as stimuli, again yielded strong evidence of a link between red and danger; no green effects were observed. The findings were discussed in terms of the power and promise of red in signal communication.

  7. Formation of algae growth constitutive relations for improved algae modeling.

    Energy Technology Data Exchange (ETDEWEB)

    Gharagozloo, Patricia E.; Drewry, Jessica Louise.

    2013-01-01

    This SAND report summarizes research conducted as a part of a two year Laboratory Directed Research and Development (LDRD) project to improve our abilities to model algal cultivation. Algae-based biofuels have generated much excitement due to their potentially large oil yield from relatively small land use and without interfering with the food or water supply. Algae mitigate atmospheric CO2 through metabolism. Efficient production of algal biofuels could reduce dependence on foreign oil by providing a domestic renewable energy source. Important factors controlling algal productivity include temperature, nutrient concentrations, salinity, pH, and the light-to-biomass conversion rate. Computational models allow for inexpensive predictions of algae growth kinetics in these non-ideal conditions for various bioreactor sizes and geometries without the need for multiple expensive measurement setups. However, these models need to be calibrated for each algal strain. In this work, we conduct a parametric study of key marine algae strains and apply the findings to a computational model.

  8. Hunting with sticky tape: functional shift in silk glands of araneophagous ground spiders (Gnaphosidae).

    Science.gov (United States)

    Wolff, Jonas O; Řezáč, Milan; Krejčí, Tomáš; Gorb, Stanislav N

    2017-06-15

    Foraging is one of the main evolutionary driving forces shaping the phenotype of organisms. In predators, a significant, though understudied, cost of foraging is the risk of being injured by struggling prey. Hunting spiders that feed on dangerous prey like ants or other spiders are an extreme example of dangerous feeding, risking their own life over a meal. Here, we describe an intriguing example of the use of attachment silk (piriform silk) for prey immobilization that comes with the costs of reduced silk anchorage function, increased piriform silk production and additional modifications of the extrusion structures (spigots) to prevent their clogging. We show that the piriform silk of gnaphosids is very stretchy and tough, which is an outstanding feat for a functional glue. This is gained by the combination of an elastic central fibre and a bi-layered glue coat consisting of aligned nanofibrils. This represents the first tensile test data on the ubiquitous piriform gland silk, adding an important puzzle piece to the mechanical catalogue of silken products in spiders. © 2017. Published by The Company of Biologists Ltd.

  9. Managing hunting under uncertainty: from one-off ecological indicators to resilience approaches in assessing the sustainability of bushmeat hunting

    Directory of Open Access Journals (Sweden)

    Nathalie van Vliet

    2015-09-01

    Full Text Available Despite the fact that sustainability of bushmeat hunting in tropical areas is of major concern for conservation and development practitioners, we still know very little about how to measure sustainability and how to put in place sustainable bushmeat hunting systems. We review the current limits of traditional methods used to investigate sustainability of bushmeat hunting, discuss the need to incorporate the characteristics of complex systems into sustainability assessments, and suggest how resilience theories could assist in understanding bushmeat sustainability and more effective conservation of wildlife in tropical areas. Traditional methods used to assess the sustainability of bushmeat hunting include demographic models of population growth, one-off biological indicators, population trend methods, harvest-based indicators, and comparisons of demographic parameters between sites. These traditional biological sustainability indices have proved inadequate for measuring the impact of bushmeat hunting because sustainability is treated as a static, binary (yes or no question, thus ignoring stochastic processes, the inherent variability of natural systems, and the complexity of hunting systems. We suggest that bushmeat hunting systems in tropical areas should be regarded as social-ecological systems in which the impacts of hunting on prey populations are not the only focus. Instead, the analysis of resilience aims at understanding the complex and dynamic relationships between the hunting ground, its resources, the stakeholders, and the different exogenous drivers of change that affect the components of the system at different scales. The main implication of using the resilience theory in the context of bushmeat hunting is the shift from the need to assess stocks with imprecise measures to the incorporation of the uncertainty and stochasticity inherent to complex systems in participatory and adaptive management processes. As such, the resilience

  10. "Hunt"-ing for post-translational modifications that underlie the histone code

    Science.gov (United States)

    Taverna, Sean D.; David Allis, C.; Hake, Sandra B.

    2007-01-01

    Eukaryotic cells package their DNA with histone proteins to form chromatin that can be regulated to enable transcription, DNA repair and replication in response to cellular needs and external stimuli. A wealth of recent studies of post-translational histone modifications and histone variants have led to an explosion of insights into and more questions about how these processes might be regulated. Work from Donald Hunt and colleagues contributed greatly to our understanding of the "histone code" by developing novel methods to study and identify histone modifications in both generic and specialized variant histone proteins. Without his expertise, the field of chromatin biology would not be where it is today. In recognition, we are pleased to contribute to a special issue of the International Journal of Mass Spectrometry dedicated to the many advances pioneered by the Hunt laboratory, which have enhanced the science of many fields and the careers of many scientists.

  11. Hunting for the optimal hunt - Contributions to a sustainable harvest strategy for pink-footed geese

    DEFF Research Database (Denmark)

    Jensen, Gitte Høj

    in order to reduce conflicts with agriculture and degradation of tundra vegetation in Svalbard. The population target shall be achieved through an adaptive harvest management (AHM) framework and optimization of hunting practices and organisation. The objective of this thesis has been to support...... the development of the AHM plan. This has been done at the flyway level by developing demographic population models and exploring the application of dynamic optimization methods to find an optimal management strategy. At the local and regional levels I explored effects of hunting practises and organisation at one......As part of the recently endorsed African-Eurasian Migratory Waterbird (AEWA) International Species Management Plan for the Svalbard population of the pink-footed goose Anser brachyrhynchus, a stable population target of 60,000 (current population is c. 80,000 during 2011-2013) has been agreed...

  12. 21 CFR 184.1120 - Brown algae.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 3 2010-04-01 2009-04-01 true Brown algae. 184.1120 Section 184.1120 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN... Substances Affirmed as GRAS § 184.1120 Brown algae. (a) Brown algae are seaweeds of the species Analipus...

  13. Exploitation des larves de sardine Limnothrissa miodon au lac Kivu (R.D.C. : danger potentiel ?

    Directory of Open Access Journals (Sweden)

    Kaningini, M.

    1997-01-01

    Full Text Available Larva's Catch of Sardine Limnothrissa miodon in Lake Kivu (RD Congo : Potential Danger ?. Commercial frog farms exist in several countries. It seems hopeless believing that frog leg consumption can be prohibited, and the solution is probably a very strict control of the origin of the legs sold and imported. Uncontrolled hunting-poaching of frogs should be replaced by sustainable and rational breeding of frogs for sale. A large frog farm located near Singapore is described with the infrastructure and the management of the production. The two species bred are the American and the Asian bull-frogs Rana catesbeiana and R. tigerina. It is also mentioned that appropriate slaughtering techniques exist for frogs based on same guidelines as for conventional farm animals.

  14. Ramsay Hunt Syndrome in a Child Case

    Directory of Open Access Journals (Sweden)

    Arzu Karataş

    2013-09-01

    Full Text Available Ramsay-Hunt Syndrome (RHS is a rare disease characterized by peripheral facial paralysis, cochleovestibular symptoms, skin lesions in the auricular canal and/or in the auricula and rarely skin lesions in the hard palate. The disease is also known as Herpes zoster oticus or herpes zoster cephalicus. Early diagnosis and antiviral treatment of peripheral nerve paralysis associated with higher rates of improvement. RHS, which is a rare disease in children should be considered in the differential diagnosis in children presenting with peripheral nerve palsy, erythema, vesicular lesions and/or ear pain. Here we presented a child case in which the first symptom was ear pain and facial palsy, followed by vesicular lesions in the ear pinna, and in the external auditory meatus.The patient recovered without squela of oral steroids and antiviral therapy.

  15. Hunting for the Quantum Cheshire Cat

    CERN Document Server

    Di Lorenzo, Antonio

    2012-01-01

    The proposal of Aharonov, Popescu, and Skrzypczyk [arXiv:1202.0631] of disembodying physical properties from particles is analyzed. It is argued that: (1) in order to state that the cat is at one location and the smile at another, one should look at correlations, not mean values; (2) a weak value of one for the presence of the cat describes the average over a large number of trials, where the detector gives in each trial outputs that are not zero nor one, and that are much larger than unity (they can be large and negative as well); (3) once these issues are addressed, the specific model proposed does not provide evidence for disembodiment of physical properties. Here, the exact probability distribution and its characteristic function are derived for arbitrary coupling strength, preparation and post-selection. This allows to successfully hunt down the quantum Cheshire cat.

  16. Bump-hunting in LHC ttbar events

    CERN Document Server

    Czakon, Michal; Mitov, Alexander

    2016-01-01

    We demonstrate that a purposefully normalised NNLO top pair invariant mass differential spectrum can have very small theoretical uncertainty and, in particular, a small sensitivity to the top quark mass. Such observable can thus be a very effective bump-hunting tool for resonances decaying to top pair events during LHC Run II and beyond. To illustrate how the approach works, we concentrate on one specific example of current interest, namely, the possible 750 GeV di-gamma excess resonance Phi. Considering only theoretical uncertainties, we demonstrate that it is possible to distinguish pp -> Phi -> tt signals studied in the recent literature [Hespel, Maltoni and Vryonidou, arXiv:1606.04149] from the pure SM background with very high significance. Alternatively, in case of non-observation, a strong upper limit on the decay rate Phi -> tt can be placed.

  17. Scenario studies for algae production

    NARCIS (Netherlands)

    Slegers, P.M.

    2014-01-01

    Microalgae are a promising biomass for the biobased economy to produce food, feed, fuel, chemicals and materials. So far, large-scale production of algae is limited and as a result estimates on the performance of such large systems are scarce. There is a need to estimate large-scale biomass producti

  18. Algae -- a poor man's HAART?

    Science.gov (United States)

    Teas, Jane; Hebert, James R; Fitton, J Helen; Zimba, Paul V

    2004-01-01

    Drawing inferences from epidemiologic studies of HIV/AIDS and in vivo and in vitro HIV inhibition by algae, we propose algal consumption as one unifying characteristic of countries with anomalously low rates. HIV/AIDS incidence and prevalence in Eastern Asia ( approximately 1/10000 adults in Japan and Korea), compared to Africa ( approximately 1/10 adults), strongly suggest that differences in IV drug use and sexual behavior are insufficient to explain the 1000-fold variation. Even in Africa, AIDS/HIV rates vary. Chad has consistently reported low rates of HIV/AIDS (2-4/100). Possibly not coincidentally, most people in Japan and Korea eat seaweed daily and the Kanemba, one of the major tribal groups in Chad, eat a blue green alga (Spirulina) daily. Average daily algae consumption in Asia and Africa ranges between 1 and 2 tablespoons (3-13 g). Regular consumption of dietary algae might help prevent HIV infection and suppress viral load among those infected.

  19. Scenario studies for algae production

    NARCIS (Netherlands)

    Slegers, P.M.

    2014-01-01

    Microalgae are a promising biomass for the biobased economy to produce food, feed, fuel, chemicals and materials. So far, large-scale production of algae is limited and as a result estimates on the performance of such large systems are scarce. There is a need to estimate large-scale biomass producti

  20. Incentivizing monitoring and compliance in trophy hunting.

    Science.gov (United States)

    Bunnefeld, Nils; Edwards, Charles T T; Atickem, Anagaw; Hailu, Fetene; Milner-Gulland, E J

    2013-12-01

    Conservation scientists are increasingly focusing on the drivers of human behavior and on the implications of various sources of uncertainty for management decision making. Trophy hunting has been suggested as a conservation tool because it gives economic value to wildlife, but recent examples show that overharvesting is a substantial problem and that data limitations are rife. We use a case study of trophy hunting of an endangered antelope, the mountain nyala (Tragelaphus buxtoni), to explore how uncertainties generated by population monitoring and poaching interact with decision making by 2 key stakeholders: the safari companies and the government. We built a management strategy evaluation model that encompasses the population dynamics of mountain nyala, a monitoring model, and a company decision making model. We investigated scenarios of investment into antipoaching and monitoring by governments and safari companies. Harvest strategy was robust to the uncertainty in the population estimates obtained from monitoring, but poaching had a much stronger effect on quota and sustainability. Hence, reducing poaching is in the interests of companies wishing to increase the profitability of their enterprises, for example by engaging community members as game scouts. There is a threshold level of uncertainty in the population estimates beyond which the year-to-year variation in the trophy quota prevented planning by the safari companies. This suggests a role for government in ensuring that a baseline level of population monitoring is carried out such that this level is not exceeded. Our results illustrate the importance of considering the incentives of multiple stakeholders when designing frameworks for resource use and when designing management frameworks to address the particular sources of uncertainty that affect system sustainability most heavily. Incentivando el Monitoreo y el Cumplimiento en la Caza de Trofeos. © 2013 The Authors. Conservation Biology published by

  1. Bear-baiting may exacerbate wolf-hunting dog conflict.

    Science.gov (United States)

    Bump, Joseph K; Murawski, Chelsea M; Kartano, Linda M; Beyer, Dean E; Roell, Brian J

    2013-01-01

    The influence of policy on the incidence of human-wildlife conflict can be complex and not entirely anticipated. Policies for managing bear hunter success and depredation on hunting dogs by wolves represent an important case because with increasing wolves, depredations are expected to increase. This case is challenging because compensation for wolf depredation on hunting dogs as compared to livestock is less common and more likely to be opposed. Therefore, actions that minimize the likelihood of such conflicts are a conservation need. We used data from two US states with similar wolf populations but markedly different wolf/hunting dog depredation patterns to examine the influence of bear hunting regulations, bear hunter to wolf ratios, hunter method, and hunter effort on wolf depredation trends. Results indicated that the ratio of bear hunting permits sold per wolf, and hunter method are important factors affecting wolf depredation trends in the Upper Great Lakes region, but strong differences exist between Michigan and Wisconsin related in part to the timing and duration of bear-baiting (i.e., free feeding). The probability that a wolf depredated a bear-hunting dog increases with the duration of bear-baiting, resulting in a relative risk of depredation 2.12-7.22× greater in Wisconsin than Michigan. The net effect of compensation for hunting dog depredation in Wisconsin may also contribute to the difference between states. These results identified a potential tradeoff between bear hunting success and wolf/bear-hunting dog conflict. These results indicate that management options to minimize conflict exist, such as adjusting baiting regulations. If reducing depredations is an important goal, this analysis indicates that actions aside from (or in addition to) reducing wolf abundance might achieve that goal. This study also stresses the need to better understand the relationship among baiting practices, the effect of compensation on hunter behavior, and depredation

  2. Bear-baiting may exacerbate wolf-hunting dog conflict.

    Directory of Open Access Journals (Sweden)

    Joseph K Bump

    Full Text Available BACKGROUND: The influence of policy on the incidence of human-wildlife conflict can be complex and not entirely anticipated. Policies for managing bear hunter success and depredation on hunting dogs by wolves represent an important case because with increasing wolves, depredations are expected to increase. This case is challenging because compensation for wolf depredation on hunting dogs as compared to livestock is less common and more likely to be opposed. Therefore, actions that minimize the likelihood of such conflicts are a conservation need. METHODOLOGY/PRINCIPAL FINDINGS: We used data from two US states with similar wolf populations but markedly different wolf/hunting dog depredation patterns to examine the influence of bear hunting regulations, bear hunter to wolf ratios, hunter method, and hunter effort on wolf depredation trends. Results indicated that the ratio of bear hunting permits sold per wolf, and hunter method are important factors affecting wolf depredation trends in the Upper Great Lakes region, but strong differences exist between Michigan and Wisconsin related in part to the timing and duration of bear-baiting (i.e., free feeding. The probability that a wolf depredated a bear-hunting dog increases with the duration of bear-baiting, resulting in a relative risk of depredation 2.12-7.22× greater in Wisconsin than Michigan. The net effect of compensation for hunting dog depredation in Wisconsin may also contribute to the difference between states. CONCLUSIONS/SIGNIFICANCE: These results identified a potential tradeoff between bear hunting success and wolf/bear-hunting dog conflict. These results indicate that management options to minimize conflict exist, such as adjusting baiting regulations. If reducing depredations is an important goal, this analysis indicates that actions aside from (or in addition to reducing wolf abundance might achieve that goal. This study also stresses the need to better understand the relationship

  3. Radiation danger of exclusion zone objects

    Energy Technology Data Exchange (ETDEWEB)

    Kholosha, V.I.; Proskura, N.I.; Ivanov, Yu.A.; Kazakov, S.V.; Arkhipov, A.N. [Ministry of Ukraine of Emergencies and Affairs of Population Protection from the Consequences of Chornobyl Catastrophe (Ukraine)

    2001-03-01

    The analysis of radiation danger of the Exclusion Zone objects was made. Here, the Zone is defined as the territory from which the population has been evacuated in 1986 owing to the Chernobyl accident and possible outflow of the contaminated substances out of the borders is potentially dangerous to the Ukraine. In the present work were analyzed such problems as sources of radiation danger in the Zone, ways of radionuclide migration out of the borders of the Zone in normal and emergency situations, the non-radiation (ecological) danger factors of the Zone objects, doses (individual and collective) from various sources and on separate ways of their formation, and the characteristics of radiation danger of the Zone objects. The conclusions are: (1) Radionuclide flows both from technologic and natural sources exceed those from Shelter objects, (2) Under emergency conditions, radionuclide flows and doze loading remain comparable with those from emergency sources, (3) To solve some management tasks in radiation situation, the basic works on the Shelter objects should be oriented to decrease probability of emergency occurrence and to reduce radiation influence (prevention wash-outs during high waters, fire-prevention measures in forests and strengthening of the control behind non-authorized use of objects in the Zone). (S. Ohno)

  4. DANGERS AND SAFETY MEASURES IN A MOUNTAIN

    Directory of Open Access Journals (Sweden)

    Jovica Petković

    2013-07-01

    Full Text Available Mountaineering and everything that is connected with it is a sport with con¬tro¬lled risk. Mountaineers, alpinists, climbers, cavers and all the others who visit and sojourn in mountains are faced with many risks and dangers, which are caused by na¬ture and also by their own mistakes. The dangers in the mountains, like dangers in any other environment, are mainly predictable, so it is best to deal with them with good esti¬mation, knowledge and skill. One has to be aware of his surroundings – the moun¬tain, to respect it and to know what is dangerous and how much it is dangerous at any moment. The organization of the mountaineering expeditions and leadership per¬haps re¬present the highest level of security control. To develop skills for organizing and lead¬ing a group means to ensure the safety of the entire group – to work pre¬ven¬ti¬ve¬ly at the level of the entire group, not only at the level of an individual. The success of the enti¬re group as well as safety depends on the organization and leadership.

  5. Is recreational hunting important for landscape multi-functionality?

    DEFF Research Database (Denmark)

    Lund, Jens Friis; Jensen, Frank Søndergaard

    2017-01-01

    , and preservation of valued and/or threatened animal and plant species. Recreational hunting may thus contribute to preserve and enhance landscape multifunctionality. Yet, little is known about the importance of hunting interests in motivating such landscape management. In this article, we seek to shed light...... on these issues on the basis of data from a nationally representative survey of Danish landowners. Our findings show a mixed picture of the role of recreational hunting in supporting multifunctional landscapes. We observe a broad swathe of landscape changes for multifunctionality cross properties with different...

  6. Herpes zoster laryngitis accompanied by Ramsay Hunt syndrome.

    Science.gov (United States)

    Lee, Dong Hoon; Yoon, Tae Mi; Lee, Joon Kyoo; Joo, Young Eun; Lim, Sang Chul

    2013-01-01

    The most common presentation of herpes zoster in the head and neck region is called Ramsay Hunt syndrome (RHS), which rarely accompanies multiple cranial neuropathy. Herpes zoster also involves the mucous membrane of the tongue, palate, pharynx, and larynx. Herpes zoster infection of the larynx accompanied by Ramsay Hunt syndrome with cranial polyneuropathy is extremely rare, with only few reported cases in the literature. At the time of this report, a review of the medical literature disclosed 4 reported cases of herpes zoster laryngitis accompanied by Ramsay Hunt syndrome. Herein, we present 2 additional cases and report the clinical outcome of cranial polyneuropathy with a review of the literature.

  7. Ramsay hunt syndrome: A diagnostic challenge for general dental practitioners

    Directory of Open Access Journals (Sweden)

    Gautham Singh

    2017-01-01

    Full Text Available Ramsay hunt syndrome is not just a syndrome but it's rather an infectious disease caused by reactivation of latent varicella-zoster virus in geniculate ganglion. This was first explained by J. Ramsay Hunt as a triad of complications like otalgia, mucosal and cutaneous rashes with or without trigeminal facial palsy. The facial palsy can occur with characteristic vesicles along the path of nerve. We present a case of Ramsay Hunt syndrome in a 48-year-old male. The unilateral pattern of facial involvement and presence of vesicles assisted us for early diagnosis, distinguishing the syndrome with diseases mimicking other severe neurological illnesses and prompt treatment.

  8. 33 CFR 334.1340 - Pacific Ocean, Hawaii; danger zones.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Pacific Ocean, Hawaii; danger... ARMY, DEPARTMENT OF DEFENSE DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.1340 Pacific Ocean, Hawaii; danger zones. (a) Danger zones—(1) Aerial bombing and strafing target surrounding Kaula...

  9. 33 CFR 62.29 - Isolated danger marks.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Isolated danger marks. 62.29... NAVIGATION UNITED STATES AIDS TO NAVIGATION SYSTEM The U.S. Aids to Navigation System § 62.29 Isolated danger marks. Isolated danger marks indicate an isolated danger which may be passed on all sides. As...

  10. 33 CFR 334.5 - Disestablishment of a danger zone.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Disestablishment of a danger zone..., DEPARTMENT OF DEFENSE DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.5 Disestablishment of a danger zone. (a) Upon receipt of a request from any agency for the disestablishment of a danger zone, the...

  11. Hunting and hallucinogens: The use psychoactive and other plants to improve the hunting ability of dogs.

    Science.gov (United States)

    Bennett, Bradley C; Alarcón, Rocío

    2015-08-02

    Cultures throughout the world give plants to their dogs in order to improve hunting success. These practices are best developed in lowland Ecuador and Peru. There is no experimental evidence for the efficacy of these practices nor critical reviews that consider possible pharmacological effects on dogs based on the chemistry of the ethnoverterinary plants. This review has three specific aims: (1) determine what plants the Ecuadorian Shuar and Quichua give to dogs to improve their hunting abilities, (2) determine what plants other cultures give to dogs for the same purpose, and (3) assess the possible pharmacological basis for the use of these plants, particularly the psychoactive ones. We gathered Shuar (Province of Morona-Santiago) and Quichua (Napo and Orellano Provinces) data from our previous publications and field notes. All specimens were vouchered and deposited in QCNE with duplicates sent to NY and MO. Data presented from other cultures derived from published studies on ethnoveterinary medicine. Species names were updated, when necessary, and family assignments follow APG III (Angiosperm Phylogeny Group, 2009. An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III. Bot. J. Linn. Soc. 161, 105-121). Chemical data were found using PubMed and SciFinder. The Shuar and Quichua of Ecuador use at least 22 species for ethnoveterinary purposes, including all but one of their principal hallucinogens. Literature surveys identified 43 species used in other cultures to improve hunting ability. No published studies have examined the pharmacological active of these plant species in dogs. We, thus, combined phytochemical data with the ethnobotanical reports of each plant and then classified each species into a likely pharmacological category: depuratives/deodorant, olfactory sensitizer, ophthalmic, or psychoactive. The use of psychoactive substances to improve a dog׳s hunting ability seems counterintuitive, yet

  12. Macro algae as substrate for biogas production

    DEFF Research Database (Denmark)

    Møller, Henrik; Sarker, Shiplu; Gautam, Dhan Prasad

    Algae as a substrate for biogas is superior to other crops since it has a much higher yield of biomass per unit area and since algae grows in the seawater there will be no competition with food production on agricultural lands. So far, the progress in treating different groups of algae as a source...... of energy is promising. In this study 5 different algae types were tested for biogas potential and two algae were subsequent used for co-digestion with manure. Green seaweed, Ulva lactuca and brown seaweed Laminaria digitata was co-digested with cattle manure at mesophilic and thermophilic condition...

  13. The danger signal S100B integrates pathogen- and danger-sensing pathways to restrain inflammation.

    Science.gov (United States)

    Sorci, Guglielmo; Giovannini, Gloria; Riuzzi, Francesca; Bonifazi, Pierluigi; Zelante, Teresa; Zagarella, Silvia; Bistoni, Francesco; Donato, Rosario; Romani, Luigina

    2011-03-01

    Humans inhale hundreds of Aspergillus conidia without adverse consequences. Powerful protective mechanisms may ensure prompt control of the pathogen and inflammation. Here we reveal a previously unknown mechanism by which the danger molecule S100B integrates pathogen- and danger-sensing pathways to restrain inflammation. Upon forming complexes with TLR2 ligands, S100B inhibited TLR2 via RAGE, through a paracrine epithelial cells/neutrophil circuit that restrained pathogen-induced inflammation. However, upon binding to nucleic acids, S100B activated intracellular TLRs eventually resolve danger-induced inflammation via transcriptional inhibition of S100B. Thus, the spatiotemporal regulation of TLRs and RAGE by S100B provides evidence for an evolving braking circuit in infection whereby an endogenous danger protects against pathogen-induced inflammation and a pathogen-sensing mechanism resolves danger-induced inflammation.

  14. The danger signal S100B integrates pathogen- and danger-sensing pathways to restrain inflammation.

    Directory of Open Access Journals (Sweden)

    Guglielmo Sorci

    2011-03-01

    Full Text Available Humans inhale hundreds of Aspergillus conidia without adverse consequences. Powerful protective mechanisms may ensure prompt control of the pathogen and inflammation. Here we reveal a previously unknown mechanism by which the danger molecule S100B integrates pathogen- and danger-sensing pathways to restrain inflammation. Upon forming complexes with TLR2 ligands, S100B inhibited TLR2 via RAGE, through a paracrine epithelial cells/neutrophil circuit that restrained pathogen-induced inflammation. However, upon binding to nucleic acids, S100B activated intracellular TLRs eventually resolve danger-induced inflammation via transcriptional inhibition of S100B. Thus, the spatiotemporal regulation of TLRs and RAGE by S100B provides evidence for an evolving braking circuit in infection whereby an endogenous danger protects against pathogen-induced inflammation and a pathogen-sensing mechanism resolves danger-induced inflammation.

  15. Allelopatrhic effect of Acorus tatarinowii upon algae

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    Besides competing with algae for light and mineralnutrients (i.e. N, P, etc.), the root system of Acorus tatarinowii excretes some chemical substances, which injure and eliminate alga cells, to inhibit the growth of the algae. When the algae cells were treated in "A. tatarinowii water", some of the chlorophyll a were destroyed and the photosynthetic rate of algae decreased markedly and the ability of alga cells to deoxidize triphenyltetrazolium chloride (TTC) reduced greatly. Then alga cells turned from bright red to bluish green under fluorescence microscope. These showed that the allelopathic effects of A.tatarinowii on algae were obvious and planting A. tatarinowii can control some green algae. The experiment on the extractions of the secretions of the root system showed that the inhibitory effect had a concentration effect. If the concentration of the root secretion was below 30 /disc, the inhibitory rate was negative; if it was over 45 /disc, the inhibitory rate was positive. This proved that the influence of the root secretion on the same acceptor was a kind of concentration effect. When the concentration of the root secretion was low, it promoted the growth of algae; when the concentration reached a definite threshold value, it restrained the growth of algae. In present case, the threshold value was between 30 /disc and 45 u?disc.

  16. The danger model: questioning an unconvincing theory.

    Science.gov (United States)

    Józefowski, Szczepan

    2016-02-01

    Janeway's pattern recognition theory holds that the immune system detects infection through a limited number of the so-called pattern recognition receptors (PRRs). These receptors bind specific chemical compounds expressed by entire groups of related pathogens, but not by host cells (pathogen-associated molecular patterns (PAMPs). In contrast, Matzinger's danger hypothesis postulates that products released from stressed or damaged cells have a more important role in the activation of immune system than the recognition of nonself. These products, named by analogy to PAMPs as danger-associated molecular patterns (DAMPs), are proposed to act through the same receptors (PRRs) as PAMPs and, consequently, to stimulate largely similar responses. Herein, I review direct and indirect evidence that contradict the widely accepted danger theory, and suggest that it may be false.

  17. Dangerous arachnids-Fake news or reality?

    Science.gov (United States)

    Hauke, Tobias J; Herzig, Volker

    2017-09-01

    The public perception of spiders and scorpions is skewed towards the potential harm they can inflict in humans, despite recent scientific evidence that arachnid venom components might be useful as bioinsecticides or even human therapeutics. Nevertheless, arachnids are becoming more popular as pets in Europe, America and Asia, raising the question for regulatory agencies in these regions as to whether they need to take measurements to protect their citizens. In order to decide upon the necessary regulatory steps, they first need to determine which arachnids are actually dangerous to humans. This review therefore provides an overview of the current literature on verified bites and stings from spiders and scorpions with the aim of assessing their potential danger for human health. As a guideline, we also provide a list of those arachnid genera that we consider as potentially dangerous, which includes 10 spider and 11 scorpion genera. The arachnid genera classified as dangerous comprise less than a quarter of all extant scorpion species and only 0.5% of all spiders species, with the actual number most likely being much lower than that, as not all species in those genera might turn out to pose an actual threat for humans. In conclusion, we found that only a small percentage of scorpions and a minute percentage of all spiders can be considered as potentially dangerous to humans. While in some countries of origin the high incidence of envenomations by dangerous arachnids can result in a serious problem to the health system, we assessed the risk that the same species pose when kept as pets under controlled maintenance conditions as significantly lower. Copyright © 2017 Elsevier Ltd. All rights reserved.

  18. Spring hunting of European roe deer in Vojvodina: Age structure and trophy value

    OpenAIRE

    2005-01-01

    Trophies of the European roe deer are the main source of income in Vojvodina hunting grounds managed by hunting associations. The specificity of site conditions (agro-biotope) aggravates the hunting, especially regarding the assessment of the age and trophy value, so the best males are hunted before they reach the culmination of trophy development. The aim of this study is to define reliably the age of males in spring hunting and to analyze their trophy structure. The study results show that,...

  19. Cartographies of danger mapping hazards in America

    CERN Document Server

    Monmonier, Mark

    1997-01-01

    No place is perfectly safe, but some places are more dangerous than others. Whether we live on a floodplain or in ""Tornado Alley,"" near a nuclear facility or in a neighborhood poorly lit at night, we all co-exist uneasily with natural and man-made hazards. As Mark Monmonier shows in this entertaining and immensely informative book, maps can tell us a lot about where we can anticipate certain hazards, but they can also be dangerously misleading. California, for example, takes earthquakes seriously, with a comprehensive program of seismic mapping, whereas Washington has been comparatively lax

  20. Sport Hunting Decision Document Package for Parker River NWR

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This hunt plan initiates the effort to reduce the Parker River National Wildlife Refuge’s white-tailed deer herd numbers to a level compatible with the habitat's...

  1. Environmental Assessment : Marais Des Cygnes NWR hunt plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The U.S. Fish and Wildlife Service proposes to allow hunting of resident and migratory game species on three-quarters of the existing acreage of Marais des Cygnes...

  2. Walk-In Hunting Access (WIHA) Fall 2011

    Data.gov (United States)

    Kansas Data Access and Support Center — This shapefile represents the private lands leased by the Kansas Department of Wildlife, Parks and Tourism (KDWPT) for fall 2011 public hunting access through the...

  3. St. Catherine Creek NWR Hunting Season Harvest Totals

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Data summaries from hunting that occurs on St. Catherine Creek NWR. Reports include summarized harvest and hunter effort data and basic analysis of these data.

  4. Mingo National Wildlife Refuge : Hunting and Fishing Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for the administration of hunting activity and for the development, maintenance, and enforcement of regulations and guidelines on Mingo...

  5. Valentine National Wildlife Refuge : Hunting and fishing regulations

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This brochure is refuge-specific fishing regulations, hunting regulations and a map showing refuge use areas for the Valentine National Wildlife Refuge.

  6. Environmental Assessment : Crescent Lake National Wildlife Refuge Hunting Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This Environmental Assessment (EA) is for the implementation of the Crescent Lake National Wildlife Refuge Hunting Plan that serves as a step down management plan to...

  7. Hunt Plan for Montezuma National Wildlife Refuge 1995

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The objectives of the white-tailed deer hunting program are: 1. To maintain the deer population at a level compatible with the quality and diversity of habitats not...

  8. Panther Swamp National Wildlife Refuge : Hunting Plan and Controversy.

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This collections covers Panther Swamp National Wildlife Refuge's hunting plan and memos (specifically Mike Espy) between the refuge on the local community. The local...

  9. Noxubee National Wildlife Refuge Hunt Management Plan 1994

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Hunt Management Plan for Noxubee National Wildlife Refuge and the associated environmental assessment and finding of no significant impact and compatibility...

  10. Hunting Plan : Big Lake National Wildlife Refuge : July 1985

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for the administration of hunting activity and for the development, maintenance, and enforcement of regulations and guidelines on Big...

  11. Public Hunting and Fishing Plan : Parker River National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This Public Hunting and Fishing Plan for Parker River National Wildlife Refuge outlines refuge objectives; program policies; the program description; and program...

  12. 77 FR 59285 - National Hunting and Fishing Day, 2012

    Science.gov (United States)

    2012-09-27

    ... natural heritage for future generations. As keepers of an age-old tradition, sportsmen and women share a... responsibility to protect it. On National Hunting and Fishing Day, we pay tribute to the community of sportsmen...

  13. Mare Hunt laseb elul ennast laineharjal kanda / intervjueerinud Anu Mõttus

    Index Scriptorium Estoniae

    Hunt, Mare, 1959-

    2009-01-01

    Küsimustele vastab Viljandi Kultuuriakadeemia õppejõud, Tartu Mänguasjamuuseumi kunstiline juht ja raamatuillustraator Mare Hunt, kes arvab, et elus pole juhuseid, kõik on kuidagi omavahel seotud

  14. Tewaukon national Wildlife Refuge - Public Hunting and Fishing Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This public hunting and fishing plan for Tewaukon National Wildlife Refuge explains the primary wildlife management objectives for: waterfowl, migratory birds other...

  15. Geocaching: Finding Mathematics in a Global Treasure Hunt

    Science.gov (United States)

    Bragg, Leicha A.

    2014-01-01

    If you love taking mathematics lessons outdoors, then you will love this article. Leicha Bragg describes geocaching, which combines technology, treasure hunting and mathematics, and results in purposeful, authentic and engaging mathematics.

  16. Public Hunting Plan Montezuma National Wildlife Refuge 1977-78

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan outlines the guidelines of the hunting season for 1977-78 and highlights the changes to this season from the previously-approved plan of 1975.

  17. Primitive Weapons Deer Hunt Swan Lake National Wildlife Refuge [Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for the administration of hunting activity and for the development, maintenance, and enforcement of regulations and guidelines on Swan...

  18. Hunting efficiency of Red-footed Falcons in different habitats

    Directory of Open Access Journals (Sweden)

    Palatitz Péter

    2015-06-01

    Full Text Available We studied hunting success of 13 male Red-footed Falcons by radio-telemetry in the second phase of chick rearing. We coded 484 hunting events, and the success measured in captured prey biomass/minute was exceedingly high in corn fields. This is mainly caused by the fact that the effectiveness of hunting for vertebrate prey was high on the harvested stubble fields. Moreover the observed falcons hunted for insects in these stubble field and alfalfa fields most successfully. In the studied habitat the chick feeding period of Red-footed Falcons coincide with the harvest of cereal fields, and the suddenly created lower vegetation cover increases temporarily the accessibility of prey items.

  19. Multivariate analysis of the hunting tactics of Kalahari leopards

    Directory of Open Access Journals (Sweden)

    J. du P. Bothma

    1997-01-01

    Full Text Available The hunting tactics of male and female leopards in the southern Kalahari were analysed for prey-specific patterns. The field study was based on tracking leopard spoor in the sandy substrate of the Kalahari. Visual profiles for each type of prey were compiled for various facets of hunting. Data sets were analysed further, using Correspondence Analysis and Detrended Correspondence Analysis. The results indicate that multivariate analysis can be used to demonstrate prey-specific hunting tactics in Kalahari leopards. In using a scarce prey base, Kalahari leopards seem to be number maximisers as they are unselective of prey type, age or sex. The presence of prey-specific hunting tactics may indicate a move along a continuum towards some degree of energy maximisation.

  20. Public Hunting and Fishing Plan Swan Lake National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for the administration of hunting and fishing activities and for the development, maintenance, and enforcement of regulations and...

  1. Hunting Management Plan : Walnut Creek National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for the administration of hunting activity and for the development, maintenance, and enforcement of regulations and guidelines on Neal...

  2. Lower Hatchie National Wildlife Refuge Hunt Management Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for the administration of hunting activity and for the development, maintenance, and enforcement of regulations and guidelines on Lower...

  3. Hunting & Fishing Plan : Patoka River National Wildlife Refuge & Management Area

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for the administration of hunting and fishing activity and for the development, maintenance, and enforcement of regulations and...

  4. Sherburne National Wildlife Refuge : Hunting Chapter of Visitor Services Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This is the Hunting Plan for Sherburne NWR. The Plan provides an introduction to the Refuge, information about conformance with statutory authorities, a statement of...

  5. Environmental Assessment of hunting on Lost Trail National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The purpose of this Environmental Assessment (EA) is to evaluate the feasibility of establishing a hunting program on Lost Trail National Wildlife Refuge (Refuge)....

  6. Hunting and Fishing Plan : Eufaula National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for the administration of hunting and fishing activity and for the development, maintenance, and enforcement of regulations and...

  7. Evaluation and Adaptation of Mine-Hunting Operations with AUVs

    NARCIS (Netherlands)

    Vossen, R. van; Giodini, S.; Hunter, A.J.; Beckers, A.L.D.; Williams, D.F.

    2013-01-01

    The effectiveness and efficiency of mine-hunting operations with autonomous underwater vehicles (AUVs) are greatly influenced by environmental conditions, such as seabed, turbidity, currents, and tides. Therefore accurate environmental information is needed for the planning and evaluation of

  8. Hunting Management Plan Ohio River Islands National Wildlife Refuge 1994

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The objectives of the Ohio River Islands National Wildlife Refuge clearly state that appropriate public uses, including hunting, should be encouraged and that...

  9. Environmental Assessment Revised Hunting Plan Erie National Wildlife Refuge 1987

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — In 1984 a serious review of the existing plans led to a decision to completely post the boundary and make the necessary revisions/addendums to the hunting plan that...

  10. Hunting Management Plan for Wallkill River National Wildlife Refuge 1997

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This document addresses the impacts of opening the Wallkill River National Wildlife Refuge to migratory game bird and turkey hunting. It has been determined that a...

  11. Hunting Management Plan for Wallkill River National Wildlife Refuge 2004

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan outlines the goals, objectives, rules, costs, potential conflicts, and historical perspective of hunting at the Wallkill River National Wildlife Refuge. It...

  12. Environmental Assessment : Hunting Plan : North Platte National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The purpose of this Environmental Assessment is to evaluate the feasibility of opening the North Platte National Wildlife Refuge to limited hunting on previously...

  13. Bombay Hook National Wildlife Refuge Hunt Management Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for the administration of hunting activity and for the development, maintenance, and enforcement of regulations and guidelines on...

  14. Tolosa-Hunt Syndrome in Double-Hit Lymphoma

    Directory of Open Access Journals (Sweden)

    Prakash Peddi

    2015-01-01

    Full Text Available Tolosa-Hunt syndrome (THS is a painful condition characterized by hemicranial pain, retroorbital pain, loss of vision, oculomotor nerve paralysis, and sensory loss in distribution of ophthalmic and maxillary division of trigeminal nerve. Lymphomas rarely involve cavernous sinus and simulate Tolosa-Hunt syndrome. Here we present a first case of double-hit B cell lymphoma (DHL relapsing and masquerading as Tolosa-Hunt syndrome. The neurological findings were explained by a lymphomatous infiltration of the right Gasserian ganglion which preceded systemic relapse. As part of this report, the diagnostic criteria for Tolosa-Hunt syndrome and double-hit lymphoma are reviewed and updated treatment recommendations are presented.

  15. Whittlesey Creek National Wildlife Refuge Waterfowl Hunting Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This plan provides guidelines for the administration of hunting activity and for the development, maintenance, and enforcement of regulations and guidelines on...

  16. Bayou Cocodrie NWR Deer Hunt Harvest Data Summaries

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Data summaries from deer hunts that occur on Bayou Cocodrie NWR. Reports include summarized deer harvest data and basic analysis of these data.

  17. St. Catherine Creek NWR Deer Hunt Harvest Data Summaries

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Data summaries from deer hunts that occur on St. Catherine Creek NWR. Reports include summarized deer harvest data and basic analysis of these data.

  18. Hunting Blind Survey 1985 at Missisquoi National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The implementation of new 1985 Federal Refuge hunting regulations at the Missisquoi National Wildlife Refuge may result in a shift in waterfowl hunter population and...

  19. Department of the Interior Final Environmental Assessment: Continuation of Big and Upland Game Hunting and the Initiation of Sambar Deer Hunting on St. Vincent National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The U.S. Fish and Wildlife Service (Service) proposes to continue upland and big game hunting and to initiate public hunting of the sambar deer on St. Vincent...

  20. Impacts of hunting on tropical forests in Southeast Asia.

    Science.gov (United States)

    Harrison, Rhett D; Sreekar, Rachakonda; Brodie, Jedediah F; Brook, Sarah; Luskin, Matthew; O'Kelly, Hannah; Rao, Madhu; Scheffers, Brett; Velho, Nandini

    2016-10-01

    Although deforestation and forest degradation have long been considered the most significant threats to tropical biodiversity, across Southeast Asia (Northeast India, Indochina, Sundaland, Philippines) substantial areas of natural habitat have few wild animals (>1 kg), bar a few hunting-tolerant species. To document hunting impacts on vertebrate populations regionally, we conducted an extensive literature review, including papers in local journals and reports of governmental and nongovernmental agencies. Evidence from multiple sites indicated animal populations declined precipitously across the region since approximately 1980, and many species are now extirpated from substantial portions of their former ranges. Hunting is by far the greatest immediate threat to the survival of most of the region's endangered vertebrates. Causes of recent overhunting include improved access to forests and markets, improved hunting technology, and escalating demand for wild meat, wildlife-derived medicinal products, and wild animals as pets. Although hunters often take common species, such as pigs or rats, for their own consumption, they take rarer species opportunistically and sell surplus meat and commercially valuable products. There is also widespread targeted hunting of high-value species. Consequently, as currently practiced, hunting cannot be considered sustainable anywhere in the region, and in most places enforcement of protected-area and protected-species legislation is weak. The international community's focus on cross-border trade fails to address overexploitation of wildlife because hunting and the sale of wild meat is largely a local issue and most of the harvest is consumed in villages, rural towns, and nearby cities. In addition to improved enforcement, efforts to engage hunters and manage wildlife populations through sustainable hunting practices are urgently needed. Unless there is a step change in efforts to reduce wildlife exploitation to sustainable levels, the

  1. Can compensatory culling offset undesirable evolutionary consequences of trophy hunting?

    OpenAIRE

    2010-01-01

    There is growing concern about the evolutionary consequences of human harvesting on phenotypic trait quality in wild populations. Undesirable consequences are especially likely with trophy hunting because of its strong bias for specific phenotypic trait values, such as large antlers in cervids and horns in bovids. Selective hunting can cause a decline in a trophy trait over time if it is heritable, thereby reducing the long-term sustainability of the activity itself. How can we build a sustai...

  2. Hypothetical Mine Hunting Sonar - Internal Wave Impact on Performance

    Science.gov (United States)

    2014-12-09

    MatLab script executed the CASS/GRAB software package. An illustrative example ofCASS/GRAB’s ray - trace output is displayed in Figure 7. The...the Navy Standard Comprehensive Acoustic System Simulation I Gaussian Ray Bundle (CASS/GRAB) ray trace computer program. The mine hunting sonar source...altered to reflect the changing sound speed field and changing range of the mine hunting sonar to targets. RAY TRACE 50 M RANGE (M) 0 1 00 200

  3. ["Treasure Hunt"--a cognitive-behavioural computer game].

    Science.gov (United States)

    Brezinka, Veronika

    2011-01-01

    The development of video games promoting health related behaviour is increasing. This holds not only for chronic diseases like asthma and diabetes, but also for the field of child psychotherapy. At the Department of Child and Adolescent Psychiatry of Zürich University, the video game Treasure Hunt was developed to support psychotherapeutic treatment of children between eight and thirteen years of age. Treasure Hunt does not replace the therapist but supports treatment by offering attractive electronic work assignments. The scope of this article is an overview on health games for children and a description of Treasure Hunt. After the explanation of its therapeutic potentials, an evaluation based on questionnaires for therapists and children will be presented. 124 therapists answered a questionnaire on their impression of the game three months after download. 41 therapists were willing to participate in the further evaluation and sent questionnaires of 200 children with whom Treasure Hunt had been used. A limitation of these data is that a positive bias can not be excluded, as therapists with a positive attitude towards psychotherapeutic computer games were more likely to answer the questionnaire. 118 therapists (95.2%) considered Treasure Hunt a useful tool in child psychotherapy. 197 children (98.5%) report being satisfied with the use of the game during treatment. Treasure Hunt was predominantly used for the age group it is designed for and both, by very experienced and by young therapists. Eleven diagnostic categories reflect a broader range of indications than expected.

  4. Phenotypic plasticity in the green algae Desmodesmus and Scenedesmus with special reference to the introduction of defensive morphology

    OpenAIRE

    Lürling, M.F.L.L.W.

    2003-01-01

    Organisms belonging to the green algal genera Desmodesmus and Scenedesmus are characterized by a high degree of flexibility allowing them to be true cosmopolitans and to withstand harsh conditions. The environmental conditions determine which phenotypes are being produced and one of the most dangerous situations for the algae is when the organisms are confronted with strong grazing pressure from numerous zooplankton organisms. An overview is given of several aspect of an induced defense in ma...

  5. Keep away from danger: Dangerous objects in dynamic and static situations

    Directory of Open Access Journals (Sweden)

    Filomena eAnelli

    2013-07-01

    Full Text Available Behavioral and neuroscience studies have shown that objects observation evokes specific affordances (i.e., action possibilities and motor responses. Recent findings provide evidence that even dangerous objects can modulate the motor system evoking aversive affordances. This sounds intriguing since so far the majority of behavioral, brain imaging, and transcranial magnetic stimulation studies with painful and dangerous stimuli strictly concerned the domain of pain, excepted for evidence suggesting sensitivity to objects’ affordances when neutral objects are located in participants’ peripersonal space. This study investigates whether the observation of a neutral or dangerous object in a static or dynamic situation differently influences motor responses, and the time-course of the dangerous objects’ processing. In three experiments we manipulated: object dangerousness (neutral vs. dangerous; object category (artifact vs. natural; manual response typology (press vs. release a key; object presentation (Experiment 1: dynamic, Experiments 2 and 3: static; object movement direction (Experiment 1: away vs. toward the participant or size (Experiments 2 and 3: big vs. normal vs. small. The task required participants to decide whether the object was an artifact or a natural object, by pressing or releasing one key. Results showed a facilitation for neutral over dangerous objects in the static situation, probably due to an affordance effect. Instead, in the dynamic condition responses were modulated by the object movement direction, with a dynamic affordance effect of neutral objects and an escape-avoidance effect of dangerous objects (neutral objects were processed faster when they moved toward-approached the participant, whereas dangerous objects were processed faster when they moved away from the participant. Moreover, static stimuli influenced the manual response typology. These data indicate the emergence of dynamic affordance and escaping

  6. Transport of dangerous goods through road tunnels

    DEFF Research Database (Denmark)

    Jørgensen, N O; Lacroix, Didier; Amundsen, F.H.;

    1999-01-01

    A paper which describes the work of an OECD research group. The group has suggested a grouping of dangerous materials, a quantitative risk assessment model and a decision support model which should allow tunnel operators to determine if a given material should be allowed throug a given tunnel...

  7. Securing the dangerous UN convoys in Mali

    DEFF Research Database (Denmark)

    Haugegaard, Rikke; Albrecht, Peter; Ravnkilde, Signe Cold

    2017-01-01

    It has proven particularly challenging for the UN stabilization mission in Mali (MINUSMA) to transport fuel, food and water to military camps in Sector North on the frontline of the mission. Convoy escorts drain the UN mission of resources and is one of its most dangerous tasks, mainly carried ou...

  8. Augustine on the Dangers of Friendship

    NARCIS (Netherlands)

    Nawar, Tamer

    2015-01-01

    The philosophers of antiquity had much to say about the place of friendship in the good life and its role in helping us live virtuously. Augustine is unusual in giving substantial attention to the dangers of friendship and its potential to serve as an obstacle (rather than an aid) to virtue. Despite

  9. Transhumanism: projections of opportunities, risks and dangers

    OpenAIRE

    Kindras, Natasha

    2013-01-01

    The experience of recent decades reveals a special changeability of various aspects of human existence. The nomadic movement in space «trans» is especially typical. Modern philosophical thought for these processes uses the term «transhumanism». The paper considers scientifically oriented outlook of transhumanism, analyzes the opportunities, risks and dangers of biotechnological transformation of human into posthuman.

  10. Honeybee communication: a signal for danger.

    Science.gov (United States)

    Srinivasan, Mandyam V

    2010-04-27

    Scout honeybees recruit other bees to visit a newly discovered food source through the famous 'waggle dance'. Now a new study reports that other nest mates can induce the dancer to stop advertising, if they have experienced danger at that location.

  11. knowledge about obstetric danger signs among preg

    African Journals Online (AJOL)

    user

    about knowledge level of pregnant women on obstetric danger signs. The objective of this ... deficiencies in awareness should be addressed through maternal and child health services by designing an appro- ..... demographic, cultural, and health interventions as well as ... Baby Package: Implementing Safe Motherhood.

  12. The dangers of non-empirical confirmation

    CERN Document Server

    Rovelli, Carlo

    2016-01-01

    In the book "String Theory and the Scientific Method", Richard Dawid describes a few of the many non-empirical arguments that motivate theoretical physicists' confidence in a theory, taking string theory as case study. I argue that excessive reliance on non-empirical evidence compromises the reliability of science, and that precisely the case of string theory well illustrates this danger.

  13. (Neuro)predictions, Dangerousness, and Retributivism

    DEFF Research Database (Denmark)

    Petersen, Thomas Søbirk

    2014-01-01

    Through the criminal justice system so-called dangerous offenders are, besides the offence that they are being convicted of and sentenced to, also punished for acts that they have not done but that they are believe to be likely to commit in the future. The aim of this paper is to critically discu...

  14. Synthetic polyester from algae oil.

    Science.gov (United States)

    Roesle, Philipp; Stempfle, Florian; Hess, Sandra K; Zimmerer, Julia; Río Bártulos, Carolina; Lepetit, Bernard; Eckert, Angelika; Kroth, Peter G; Mecking, Stefan

    2014-06-23

    Current efforts to technically use microalgae focus on the generation of fuels with a molecular structure identical to crude oil based products. Here we suggest a different approach for the utilization of algae by translating the unique molecular structures of algae oil fatty acids into higher value chemical intermediates and materials. A crude extract from a microalga, the diatom Phaeodactylum tricornutum, was obtained as a multicomponent mixture containing amongst others unsaturated fatty acid (16:1, 18:1, and 20:5) phosphocholine triglycerides. Exposure of this crude algae oil to CO and methanol with the known catalyst precursor [{1,2-(tBu2 PCH2)2C6H4}Pd(OTf)](OTf) resulted in isomerization/methoxycarbonylation of the unsaturated fatty acids into a mixture of linear 1,17- and 1,19-diesters in high purity (>99 %). Polycondensation with a mixture of the corresponding diols yielded a novel mixed polyester-17/19.17/19 with an advantageously high melting and crystallization temperature.

  15. Parasites in algae mass culture

    Directory of Open Access Journals (Sweden)

    Todd William Lane

    2014-06-01

    Full Text Available Parasites are now known to be ubiquitous across biological systems and can play an important role in modulating algal populations. However, there is a lack of extensive information on their role in artificial ecosystems such as algal production ponds and photobioreactors. Parasites have been implicated in the demise of algal blooms. Because individual mass culture systems often tend to be unialgal and a select few algal species are in wide scale application, there is an increased potential for parasites to have a devastating effect on commercial scale monoculture. As commercial algal production continues to expand with a widening variety of applications, including biofuel, food and pharmaceuticals, the parasites associated with algae will become of greater interest and potential economic impact. A number of important algal parasites have been identified in algal mass culture systems in the last few years and this number is sure to grow as the number of commercial algae ventures increases. Here, we review the research that has identified and characterized parasites infecting mass cultivated algae, the techniques being proposed and or developed to control them, and the potential impact of parasites on the future of the algal biomass industry.

  16. Halogenated compounds from marine algae.

    Science.gov (United States)

    Cabrita, Maria Teresa; Vale, Carlos; Rauter, Amélia Pilar

    2010-08-09

    Marine algae produce a cocktail of halogenated metabolites with potential commercial value. Structures exhibited by these compounds go from acyclic entities with a linear chain to complex polycyclic molecules. Their medical and pharmaceutical application has been investigated for a few decades, however other properties, such as antifouling, are not to be discarded. Many compounds were discovered in the last years, although the need for new drugs keeps this field open as many algal species are poorly screened. The ecological role of marine algal halogenated metabolites has somehow been overlooked. This new research field will provide valuable and novel insight into the marine ecosystem dynamics as well as a new approach to comprehending biodiversity. Furthermore, understanding interactions between halogenated compound production by algae and the environment, including anthropogenic or global climate changes, is a challenging target for the coming years. Research of halogenated metabolites has been more focused on macroalgae than on phytoplankton. However, phytoplankton could be a very promising material since it is the base of the marine food chain with quick adaptation to environmental changes, which undoubtedly has consequences on secondary metabolism. This paper reviews recent progress on this field and presents trends on the role of marine algae as producers of halogenated compounds.

  17. Bioethanol Production from Indigenous Algae

    Directory of Open Access Journals (Sweden)

    Madhuka Roy

    2015-02-01

    Full Text Available Enhanced rate of fossil fuel extraction is likely to deplete limited natural resources over short period of time. So search for alternative fuel is only the way to overcome this problem of upcoming energy crisis. In this aspect biofuel is a sustainable option. Agricultural lands cannot be compromised for biofuel production due to the requirement of food for the increasing population. Certain species of algae can produce ethanol during anaerobic fermentation and thus serve as a direct source for bioethanol production. The high content of complex carbohydrates entrapped in the cell wall of the microalgae makes it essential to incorporate a pre-treatment stage to release and convert these complex carbohydrates into simple sugars prior to the fermentation process. There have been researches on production of bioethanol from a particular species of algae, but this work was an attempt to produce bioethanol from easily available indigenous algae. Acid hydrolysis was carried out as pre-treatment. Gas Chromatographic analysis showed that 5 days’ fermentation by baker’s yeast had yielded 93% pure bioethanol. The fuel characterization of the bioethanol with respect to gasoline showed comparable and quite satisfactory results for its use as an alternative fuel.DOI: http://dx.doi.org/10.3126/ije.v4i1.12182International Journal of Environment Volume-4, Issue-1, Dec-Feb 2014/15, page: 112-120  

  18. The Hunt for Exomoons with Kepler

    Science.gov (United States)

    Kipping, David M.

    2012-01-01

    Extrasolar moons may be frequent temperate abodes for life and their detection would not only have astrobiological significance but would also greatly further our understanding of planet/moon formation theories. To date, the bulk of research on this topic has been mostly theoretical, focussing on detection techniques and expected sensitivities as well as exomoon origin and evolution. Here, we introduce a new observational project which aims to change this, enabled by the fact both the theory and available instrumentation have evolved to the required level to make such a search feasible. Our project, "The Hunt for Exomoons with Kepler” (HEK), will be a systematic search for exomoons around planets which are viable hosts, with the explicit goal of determining the frequency of large exomoons in the cosmos. We will overview the observational strategy including the detection tools and target selection routines which have been developed, methods to vet false-positives, and some preliminary results from our first batch of candidates. This research is enabled by the NASA Carl Sagan fellowships for exoplanetary research.

  19. Organizational Actively Management for Opportunity Hunting

    Directory of Open Access Journals (Sweden)

    Nasser Fegh-hi FARAHMAND

    2012-03-01

    Full Text Available Organizational Actively Management (OAM is the responsibility of every manager. Because, an approach for OAM is becoming more widely accepted is a community-based development approach. In Opportunity Hunting Approach (OHA, OAM is the responsibility of every manager for his/her actions. OAM is using from top to bottom development model. According to the survey of market and customers, after understand customers’ needs, organization then decide how the quality policy and target will develop, from there the actively management system can be developed. The aim of this study in field of organizational actively management and policy of it can provide the specific process required for setting up and monitoring the actively target. As it also is customer-oriented, it aims to improve customer satisfaction. In addition, the actively target should be set up and implemented within every organization department and at each level, in accordance with actively policy. Furthermore, organization should develop the actively management system, in order to conform to general requirements and actively target.

  20. TOLOSA HUNT SYNDROME: A RARE CASE REPORT

    Directory of Open Access Journals (Sweden)

    Sivaranjani

    2015-03-01

    Full Text Available A 39 years old woman presented with painful loss of vision in left eye for 3 days. Patient had similar complaints in left eye 3 months back. On examination, her visual acuity was perception of light with accurate projection of rays with RAPD. Severe ptosis was present in left eye. The patient had restricted extra ocular movement in all gazes and numbness in periorbital region. Right eye examination was unremarkable. The case was diagnosed as multiple cranial nerve palsy and MRI contrast revealed abscess in the left orbital apex region involving, left cavernous sinus, extra axial left temporal lobe, extending into superior orbital fissure and associated patchy meningeal involvement. Tolosa – Hunt syndrome (THS is a rare disorder characterized by severe unilateral headaches with multiple cranial nerve palsies, usually involving the third, fourth, fifth, and sixth cranial nerves and periorbital pain , along with weakness and paralysis of extra ocular muscles. [1] The exact cause of THS is not known, but the disorder is associated with inflammation of cavernous sinus and superior orbital fissure.

  1. Síndrome de Tolosa-Hunt

    Directory of Open Access Journals (Sweden)

    Eduardo Scaldini Buscacio

    2016-02-01

    Full Text Available RESUMO A Síndrome de Tolosa Hunt é uma doença rara, cuja etiopatogenia é desconhecida. Apresenta-se como uma oftalmoplegia dolorosa de um ou mais nervos cranianos oculomotores, que regride espontaneamente e responde bem ao tratamento com corticoides. O presente estudo trata-se de um relato de caso de um paciente que apresentou seguidos casos de oftalmoplegias dolorosas, envolvendo o nervo oculomotor e o abducente sendo tratado com corticoesteroides obteve uma resposta dramática. Objetiva-se ainda descrever as características fisiopatológicas, clínicas, o diagnóstico diferencial, visto que é um diagnóstico de exclusão, e medidas terapêuticas instituídas de acordo com o International Headache Society 2004 (ISH-2004 através da apresentação do caso clínico conduzido com as normas do estudo supracitado.

  2. 50 CFR 32.2 - What are the requirements for hunting on areas of the National Wildlife Refuge System?

    Science.gov (United States)

    2010-10-01

    ... Migratory Bird Hunting Stamp while hunting migratory waterfowl. (c) Each person shall comply with the... migratory game bird, upland game, and big game hunting appear in §§ 32.20 through 32.72. (g) The use of any.... Where we allow turkey and deer hunting, you may use slugs and shot containing lead to hunt these...

  3. Modeling the impacts of hunting on the population dynamics of red howler monkeys (Alouatta seniculus)

    Science.gov (United States)

    Wiederholt, Ruscena; Fernandez-Duque, Eduardo; Diefenbach, Duane R.; Rudran, Rasanayagam

    2010-01-01

    Overexploitation of wildlife populations occurs across the humid tropics and is a significant threat to the long-term survival of large-bodied primates. To investigate the impacts of hunting on primates and ways to mitigate them, we developed a spatially explicit, individual-based model for a landscape that included hunted and un-hunted areas. We used the large-bodied neotropical red howler monkey (Alouatta seniculus) as our case study species because its life history characteristics make it vulnerable to hunting. We modeled the influence of different rates of harvest and proportions of landscape dedicated to un-hunted reserves on population persistence, population size, social dynamics, and hunting yields of red howler monkeys. In most scenarios, the un-hunted populations maintained a constant density regardless of hunting pressure elsewhere, and allowed the overall population to persist. Therefore, the overall population was quite resilient to extinction; only in scenarios without any un-hunted areas did the population go extinct. However, the total and hunted populations did experience large declines over 100 years under moderate and high hunting pressure. In addition, when reserve area decreased, population losses and losses per unit area increased disproportionately. Furthermore, hunting disrupted the social structure of troops. The number of male turnovers and infanticides increased in hunted populations, while birth rates decreased and exacerbated population losses due to hunting. Finally, our results indicated that when more than 55% of the landscape was harvested at high (30%) rates, hunting yields, as measured by kilograms of biomass, were less than those obtained from moderate harvest rates. Additionally, hunting yields, expressed as the number of individuals hunted/year/km2, increased in proximity to un-hunted areas, and suggested that dispersal from un-hunted areas may have contributed to hunting sustainability. These results indicate that un-hunted

  4. Spring hunting of European roe deer in Vojvodina: Age structure and trophy value

    Directory of Open Access Journals (Sweden)

    Gačić Dragan

    2005-01-01

    Full Text Available Trophies of the European roe deer are the main source of income in Vojvodina hunting grounds managed by hunting associations. The specificity of site conditions (agro-biotope aggravates the hunting, especially regarding the assessment of the age and trophy value, so the best males are hunted before they reach the culmination of trophy development. The aim of this study is to define reliably the age of males in spring hunting and to analyze their trophy structure. The study results show that, in the majority of the study hunting grounds, spring (May hunting was performed correctly and professionally, and the age structure and trophy value of the males were very favorable. The males that are considered as mature for shooting account for one half of the total spring hunting, while their percentage is even higher in the so-called "trophy hunting" (60.7%, which results in a high percentage of trophies in medals (21.5%.

  5. Can compensatory culling offset undesirable evolutionary consequences of trophy hunting?

    Science.gov (United States)

    Mysterud, Atle; Bischof, Richard

    2010-01-01

    1. There is growing concern about the evolutionary consequences of human harvesting on phenotypic trait quality in wild populations. Undesirable consequences are especially likely with trophy hunting because of its strong bias for specific phenotypic trait values, such as large antlers in cervids and horns in bovids. Selective hunting can cause a decline in a trophy trait over time if it is heritable, thereby reducing the long-term sustainability of the activity itself. 2. How can we build a sustainable trophy hunting tradition without the negative trait-altering effects? We used an individual-based model to explore whether selective compensatory culling of 'low quality' individuals at an early life stage can facilitate sustainability, as suggested by information from managed game populations in eastern and central Europe. Our model was rooted in empirical data on red deer, where heritability of sexual ornaments has been confirmed and phenotypic quality can be assessed by antler size in individuals as young as 1 year. 3. Simulations showed that targeted culling of low-quality yearlings could counter the selective effects of trophy hunting on the distribution of the affected trait (e.g. antler or horn size) in prime-aged individuals. Assumptions of trait heritability and young-to-adult correlation were essential for compensation, but the model proved robust to various other assumptions and changes to input parameters. The simulation approach allowed us to verify responses as evolutionary changes in trait values rather than short-term consequences of altered age structure, density and viability selection. 4. We conclude that evolutionarily enlightened management may accommodate trophy hunting. This has far reaching implications as income from trophy hunting is often channelled into local conservation efforts and rural economies. As an essential follow-up, we recommend an analysis of the effects of trophy hunting in conjunction with compensatory culling on the

  6. Photobioreactors for mass cultivation of algae.

    Science.gov (United States)

    Ugwu, C U; Aoyagi, H; Uchiyama, H

    2008-07-01

    Algae have attracted much interest for production of foods, bioactive compounds and also for their usefulness in cleaning the environment. In order to grow and tap the potentials of algae, efficient photobioreactors are required. Although a good number of photobioreactors have been proposed, only a few of them can be practically used for mass production of algae. One of the major factors that limits their practical application in algal mass cultures is mass transfer. Thus, a thorough understanding of mass transfer rates in photobioreactors is necessary for efficient operation of mass algal cultures. In this review article, various photobioreactors that are very promising for mass production of algae are discussed.

  7. Toxic Effects of Phthalates on Ocean Algae

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    This article discusses the interaction of phthalates and ocean algae based on the standard appraisal method of chemical medicine for algae toxicity. Through the experiments on the toxic effects of dimethyl (o-) phthalate (DMP), diethyl (o-) phthalate (DEP), dibutyl (o-)phthalate (DBP) on ocean algae, the 50 % lethal concentration of the three substances in 48 h and 96 h for plaeodectylum tricornutum, platymonas sp, isochrysis galbana, and skeletonema costatum is obtained. Tolerance limits of the above ocean algae of DMP, DEP, and DBP are discussed.

  8. A danger-theory-based immune network optimization algorithm.

    Science.gov (United States)

    Zhang, Ruirui; Li, Tao; Xiao, Xin; Shi, Yuanquan

    2013-01-01

    Existing artificial immune optimization algorithms reflect a number of shortcomings, such as premature convergence and poor local search ability. This paper proposes a danger-theory-based immune network optimization algorithm, named dt-aiNet. The danger theory emphasizes that danger signals generated from changes of environments will guide different levels of immune responses, and the areas around danger signals are called danger zones. By defining the danger zone to calculate danger signals for each antibody, the algorithm adjusts antibodies' concentrations through its own danger signals and then triggers immune responses of self-regulation. So the population diversity can be maintained. Experimental results show that the algorithm has more advantages in the solution quality and diversity of the population. Compared with influential optimization algorithms, CLONALG, opt-aiNet, and dopt-aiNet, the algorithm has smaller error values and higher success rates and can find solutions to meet the accuracies within the specified function evaluation times.

  9. A New Roadway Danger: Drivers Chasing 'Pokemon Go'

    Science.gov (United States)

    ... gov/news/fullstory_161005.html A New Roadway Danger: Drivers Chasing 'Pokemon Go' At least 14 crashes ... it remains imperative for people to understand the dangers of driving with that level of distraction. "This ...

  10. Thresher sharks use tail-slaps as a hunting strategy.

    Science.gov (United States)

    Oliver, Simon P; Turner, John R; Gann, Klemens; Silvosa, Medel; D'Urban Jackson, Tim

    2013-01-01

    The hunting strategies of pelagic thresher sharks (Alopias pelagicus) were investigated at Pescador Island in the Philippines. It has long been suspected that thresher sharks hunt with their scythe-like tails but the kinematics associated with the behaviour in the wild are poorly understood. From 61 observations recorded by handheld underwater video camera between June and October 2010, 25 thresher shark shunting events were analysed. Thresher sharks employed tail-slaps to debilitate sardines at all times of day. Hunting events comprised preparation, strike, wind-down recovery and prey item collection phases, which occurred sequentially. Preparation phases were significantly longer than the others, presumably to enable a shark to windup a tail-slap. Tail-slaps were initiated by an adduction of the pectoral fins, a manoeuvre that changed a thresher shark's pitch promoting its posterior region to lift rapidly, and stall its approach. Tail-slaps occurred with such force that they may have caused dissolved gas to diffuse out of the water column forming bubbles. Thresher sharks were able to consume more than one sardine at a time, suggesting that tail-slapping is an effective foraging strategy for hunting schooling prey. Pelagic thresher sharks appear to pursue sardines opportunistically by day and night, which may make them vulnerable to fisheries. Alopiids possess specialist pectoral and caudal fins that are likely to have evolved, at least in part, for tail-slapping. The evidence is now clear; thresher sharks really do hunt with their tails.

  11. Thresher sharks use tail-slaps as a hunting strategy.

    Directory of Open Access Journals (Sweden)

    Simon P Oliver

    Full Text Available The hunting strategies of pelagic thresher sharks (Alopias pelagicus were investigated at Pescador Island in the Philippines. It has long been suspected that thresher sharks hunt with their scythe-like tails but the kinematics associated with the behaviour in the wild are poorly understood. From 61 observations recorded by handheld underwater video camera between June and October 2010, 25 thresher shark shunting events were analysed. Thresher sharks employed tail-slaps to debilitate sardines at all times of day. Hunting events comprised preparation, strike, wind-down recovery and prey item collection phases, which occurred sequentially. Preparation phases were significantly longer than the others, presumably to enable a shark to windup a tail-slap. Tail-slaps were initiated by an adduction of the pectoral fins, a manoeuvre that changed a thresher shark's pitch promoting its posterior region to lift rapidly, and stall its approach. Tail-slaps occurred with such force that they may have caused dissolved gas to diffuse out of the water column forming bubbles. Thresher sharks were able to consume more than one sardine at a time, suggesting that tail-slapping is an effective foraging strategy for hunting schooling prey. Pelagic thresher sharks appear to pursue sardines opportunistically by day and night, which may make them vulnerable to fisheries. Alopiids possess specialist pectoral and caudal fins that are likely to have evolved, at least in part, for tail-slapping. The evidence is now clear; thresher sharks really do hunt with their tails.

  12. 30 CFR 77.511 - Danger signs at electrical installations.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Danger signs at electrical installations. 77... UNDERGROUND COAL MINES Electrical Equipment-General § 77.511 Danger signs at electrical installations. Suitable danger signs shall be posted at all major electrical installations....

  13. NCEP-ECPC monthly to seasonal US fire danger forecasts

    Science.gov (United States)

    J. Roads; P. Tripp; H. Juang; J. Wang; F. Fujioka; S. Chen

    2010-01-01

    Five National Fire Danger Rating System indices (including the Ignition Component, Energy Release Component, Burning Index, Spread Component, and the Keetch–Byram Drought Index) and the Fosberg Fire Weather Index are used to characterise US fire danger. These fire danger indices and input meteorological variables, including temperature, relative humidity, precipitation...

  14. Affective and Emotional Performances of Danger on Tours

    NARCIS (Netherlands)

    Buda, Dorina; van Hoven, Bettina

    2014-01-01

    In this paper we discuss how danger is affectively and emotionally experienced and performed in different tourism contexts. We draw on Brian Massumi’s work on affect as intensity to show how danger is experienced and outlived to tell the story. The exact origin of danger is not the most important, t

  15. Marine Algae and Seagrasses of Hatay (Mediterranean, Turkey)

    OpenAIRE

    Aysel, V.; Erdugan, H.; Okudan, E. S.

    2015-01-01

    Abstract In this research, marine algae and seagrasses were investigated in the upper infralittoral zone of Hatay (Turkish Mediterranean coasts). A total of 377 algae and 5 seagrasses were determined. 30 of them belong to blue-green algae (Cyanophyceae), 201 to red algae [Rhodellophyceae (2), Compsopogonophyceae (2), Bangiophyceae (5), Florideophyceae (192)], 73 to brown algae (Fucophyceae), 73 to green algae [Chlorophyceae (5), Ulvophyceae (19), Trentepohliophyceae (1), Cladophorophyceae (24...

  16. Marine Algae and Seagrasses of Hatay (Mediterranean, Turkey)

    OpenAIRE

    Aysel, V.; Erdugan, H.; Okudan, E. S.

    2006-01-01

    Abstract In this research, marine algae and seagrasses were investigated in the upper infralittoral zone of Hatay (Turkish Mediterranean coasts). A total of 377 algae and 5 seagrasses were determined. 30 of them belong to blue-green algae (Cyanophyceae), 201 to red algae [Rhodellophyceae (2), Compsopogonophyceae (2), Bangiophyceae (5), Florideophyceae (192)], 73 to brown algae (Fucophyceae), 73 to green algae [Chlorophyceae (5), Ulvophyceae (19), Trentepohliophyceae (1), Cladophorophyceae (24...

  17. Shoot first, ask questions later: Interpretative narratives of Neanderthal hunting

    Science.gov (United States)

    White, Mark; Pettitt, Paul; Schreve, Danielle

    2016-05-01

    This paper examines the hunting strategies employed by Neanderthals at a series of kill or near-kill sites from the Middle Palaeolithic of Europe (Mauran, La Borde, Taubach, Zwoleń and Salzgitter Lebenstedt). Using palaeolandscape reconstructions and animal ethology as our context, we adopt a multifaceted approach that views hunting as a chaîne opératoire involving the decisions and actions of both the hunter and the hunted, which together help reconstruct a forensic picture of past events as they unfolded. Our conclusions indicate that Neanderthals did not necessarily pre-select individuals from a herd, who they then isolated, pursued and killed, but rather ambushed whole groups, which they slaughtered indiscriminately. There is strong evidence, however, that Neanderthals were highly selective in the carcasses they then chose to process. Our conclusions suggest that Neanderthals were excellent tacticians, casual executioners and discerning diners.

  18. A Distributed Hunting Approach for Multiple Autonomous Robots

    Directory of Open Access Journals (Sweden)

    Zhiqiang Cao

    2013-04-01

    Full Text Available A novel distributed hunting approach for multiple autonomous robots in unstructured mode‐free environments, which is based on effective sectors and local sensing, is proposed in this paper. The visual information, encoder and sonar data are integrated in the robot’s local frame, and the effective sector is introduced. The hunting task is modelled as three states: search state, round‐obstacle state, and hunting state, and the corresponding switching conditions and control strategies are given. A form of cooperation will emerge where the robots interact only locally with each other. The evader, whose motion is a priori unknown to the robots, adopts an escape strategy to avoid being captured. The approach is scalable and may cope with problems of communication and wheel slippage. The effectiveness of the proposed approach is verified through experiments with a team of wheeled robots.

  19. TOLOSA-HUNT SYNDROME MIMICKING AS ORBITAL COMPLICATION OF SINUSITIS

    Directory of Open Access Journals (Sweden)

    Raveendra . Gadag

    2014-12-01

    Full Text Available The Tolosa – Hunt syndrome is a rare, benign condition characterized by severe unilateral headache with extraocular palsies, orbital pain caused by nonspecific granulomatous inflammation in the cavernous sinus, superior orbital fissure or the orbit. (1-4 The incidence of Tolosa - Hunt syndrome has been estimated as approximately one to two cases per million. The etiology of the syndrome is largely unknown and it can affect people of virtually any age, with no sex predilection. It is usually unilateral, with no predisposition for right or left side; it has been reported as bilateral in 4.1-5 % cases. (2, 4 We report a rare case of Tolosa-Hunt syndrome which was misdiagnosed as sinusitis with orbital complication. The clinical features, diagnostic investigation and the importance of magnetic resonance imaging (MRI studies in the differentiation of the condition are addressed.

  20. Cultivation of macroscopic marine algae

    Energy Technology Data Exchange (ETDEWEB)

    Ryther, J.H.

    1982-11-01

    The red alga Gracilaria tikvahiae may be grown outdoors year-round in central Florida with yields averaging 35.5 g dry wt/m/sup 2/.day, greater than the most productive terrestrial plants. This occurs only when the plants are in a suspended culture, with vigorous aeration and an exchange of 25 or more culture volumes of enriched seawater per day, which is not cost-effective. A culture system was designed in which Gracilaria, stocked at a density of 2 kg wet wt/m/sup 2/, grows to double its biomass in one to two weeks; it is then harvested to its starting density, and anaerobically digested to methane. The biomass is soaked for 6 hours in the digester residue, storing enough nutrients for two weeks' growth in unenriched seawater. The methane is combusted for energy and the waste gas is fed to the culture to provide mixing and CO/sub 2/, eliminating the need for aeration and seawater exchange. The green alga Ulva lactuca, unlike Gracilaria, uses bicarbonate as a photosynthesis carbon source, and can grow at high pH, with little or no free CO/sub 2/. It can therefore produce higher yields than Gracilaria in low water exchange conditions. It is also more efficiently converted to methane than is Gracilaria, but cannot tolerate Florida's summer temperatures so cannot be grown year-round. Attempts are being made to locate or produce a high-temperature tolerant strain.

  1. Algae commensal community in Genlisea traps

    Directory of Open Access Journals (Sweden)

    Konrad Wołowski

    2011-01-01

    Full Text Available The community of algae occurring in Genlisea traps and on the external traps surface in laboratory conditions were studied. A total of 29 taxa were found inside the traps, with abundant diatoms, green algae (Chlamydophyceae and four morphotypes of chrysophytes stomatocysts. One morphotype is described as new for science. There are two ways of algae getting into Genlisea traps. The majority of those recorded inside the traps, are mobile; swimming freely by flagella or moving exuding mucilage like diatoms being ablate to colonize the traps themselves. Another possibility is transport of algae by invertebrates such as mites and crustaceans. In any case algae in the Genlisea traps come from the surrounding environment. Two dominant groups of algae (Chladymonas div. and diatoms in the trap environment, show ability to hydrolyze phosphomonoseters. We suggest that algae in carnivorous plant traps can compete with plant (host for organic phosphate (phosphomonoseters. From the spectrum and ecological requirements of algal species found in the traps, environment inside the traps seems to be acidic. However, further studies are needed to test the relations between algae and carnivorous plants both in laboratory conditions and in the natural environment. All the reported taxa are described briefly and documented with 74 LM and SEM micrographs.

  2. Modeling and optimization of algae growth

    NARCIS (Netherlands)

    Thornton, Anthony Richard; Weinhart, Thomas; Bokhove, Onno; Zhang, Bowen; van der Sar, Dick M.; Kumar, Kundan; Pisarenco, Maxim; Rudnaya, Maria; Savceno, Valeriu; Rademacher, Jens; Zijlstra, Julia; Szabelska, Alicja; Zyprych, Joanna; van der Schans, Martin; Timperio, Vincent; Veerman, Frits; Frank, J.; van der Mei, R.; den Boer, A.; Bosman, J.; Bouman, N.; van Dam, S.; Verhoef, C.

    2010-01-01

    The wastewater from greenhouses has a high amount of mineral contamination and an environmentally-friendly method of removal is to use algae to clean this runo water. The algae consume the minerals as part of their growth process. In addition to cleaning the water, the created algal bio-mass has a

  3. Modeling and optimization of algae growth

    NARCIS (Netherlands)

    Thornton, Anthony Richard; Weinhart, Thomas; Bokhove, Onno; Zhang, Bowen; van der Sar, Dick M.; Kumar, Kundan; Pisarenco, Maxim; Rudnaya, Maria; Savcenco, Valeriu; Rademacher, Jens; Zijlstra, Julia; Szabelska, Alicja; Zyprych, Joanna; van der Schans, Martin; Timperio, Vincent; Veerman, Frits

    2010-01-01

    The wastewater from greenhouses has a high amount of mineral contamination and an environmentally-friendly method of removal is to use algae to clean this runoff water. The algae consume the minerals as part of their growth process. In addition to cleaning the water, the created algal bio-mass has a

  4. Take a Dip! Culturing Algae Is Easy.

    Science.gov (United States)

    James, Daniel E.

    1983-01-01

    Describes laboratory activities using algae as the organisms of choice. These include examination of typical algal cells, demonstration of alternation of generations, sexual reproduction in Oedogonium, demonstration of phototaxis, effect of nitrate concentration on Ankistrodesmus, and study of competition between two algae in the same environment.…

  5. Modeling and optimization of algae growth

    NARCIS (Netherlands)

    Thornton, Anthony Richard; Weinhart, Thomas; Bokhove, Onno; Zhang, Bowen; van der Sar, Dick M.; Kumar, Kundan; Pisarenco, Maxim; Rudnaya, Maria; Savceno, Valeriu; Rademacher, Jens; Zijlstra, Julia; Szabelska, Alicja; Zyprych, Joanna; van der Schans, Martin; Timperio, Vincent; Veerman, Frits; Frank, J.; van der Mei, R.; den Boer, A.; Bosman, J.; Bouman, N.; van Dam, S.; Verhoef, C.

    2010-01-01

    The wastewater from greenhouses has a high amount of mineral contamination and an environmentally-friendly method of removal is to use algae to clean this runo water. The algae consume the minerals as part of their growth process. In addition to cleaning the water, the created algal bio-mass has a v

  6. Nutritional And Taste Characteristics Of Algae

    Science.gov (United States)

    Karel, M.; Nakhost, Z.

    1992-01-01

    Report describes investigation of chemical composition of blue-green algae Synechococcus 6311, as well as preparation of protein isolate from green alga Scenedesmus obliquus and incorporation into variety of food products evaluated for taste. Part of program to investigate growth of microalgae aboard spacecraft for use as food.

  7. Modeling and optimization of algae growth

    NARCIS (Netherlands)

    Thornton, Anthony; Weinhart, Thomas; Bokhove, Onno; Zhang, Bowen; Sar, van der Dick M.; Kumar, Kundan; Pisarenco, Maxim; Rudnaya, Maria; Savceno, Valeriu; Rademacher, Jens; Zijlstra, Julia; Szabelska, Alicja; Zyprych, Joanna; Schans, van der Martin; Timperio, Vincent; Veerman, Frits; Frank, J.; van der Mei, R.; den Boer, A.; Bosman, J.; Bouman, N.; van Dam, S.; Verhoef, C.

    2010-01-01

    The wastewater from greenhouses has a high amount of mineral contamination and an environmentally-friendly method of removal is to use algae to clean this runo water. The algae consume the minerals as part of their growth process. In addition to cleaning the water, the created algal bio-mass has a v

  8. Vanadium in marine mussels and algae

    Energy Technology Data Exchange (ETDEWEB)

    Sperling, K.R.; Bahr, B. [Alfred-Wegener-Institut fuer Polar- und Meeresforschung, Bremerhaven (Germany); Ott, J. [Fachhochschule Hamburg (Germany). Fachbereich Naturwissenschaftliche Technik, Studiengang Biotechnologie

    2000-01-01

    A method is presented which is sensitive enough for the determination of vanadium (V) in marine organisms such as mussels and algae. It was sufficiently checked by a reference material and it was applied to V determination in blue mussels and brown algae from the German Bight. (orig.)

  9. [Intra-Service Section 7 Consultation : Hunting Plan for Crescent Lake National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This Intra-Service Section 7 evaluation for the 2004 Hunting Plan concurs that activities associated with the proposed Hunting Plan for Crescent Lake National...

  10. Big Muddy National Fish & Wildlife Refuge Hunting Chapter of Visitor Services Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The Refuge staff developed this Hunting Plan to guide hunting on the Refuge and fulfill the purposes for which the Refuge was established. This plan provides...

  11. Annual Hunting Program : Big Game : Parker River National Wildlife Refuge : CY 1989

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This 1989 Annual Big Game Hunting Program outlines the reasons and regulations for white-tailed deer hunting on Parker River National Wildlife Refuge. The...

  12. Intra-Service Section 7 Evaluation Consultation/Conference/Concurrence : Walnut Creek NWR Interim Hunting Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This Section 7 Evaluation for the Neal Smith NWR Interim Hunting Plan states that the hunting program is not likely to adversely affect listed species on the Refuge....

  13. 76 FR 16638 - Wildlife and Hunting Heritage Conservation Council Teleconference; Cancellation

    Science.gov (United States)

    2011-03-24

    ... Fish and Wildlife Service Wildlife and Hunting Heritage Conservation Council Teleconference... teleconference of the Wildlife and Hunting Heritage Conservation Council (Council). The teleconference was to... provide advice about wildlife and habitat conservation endeavors. For more information about the...

  14. Annual Hunting Program : Migratory Waterfowl : Parker River National Wildlife Refuge : 1992-1993

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This 1992-93 Annual Migratory Waterfowl Hunting Program outlines the reasons and regulations for migratory waterfowl hunting on Parker River National Wildlife...

  15. Environmental Assessment: Sport Hunting Plan for Crescent Lake National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This Environmental Assessment (EA) considers four alternatives for expanding hunting on Crescent Lake NWR. The preferred alternative is to expand hunting...

  16. Environmental Assessment : proposed shotgun slug/blackpowder antlerless deer hunt on Lee Metcalf National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Lee Metcalf NWR, in this assessment, is proposing a gun hunt for the 1988 deer hunting season in an effort to reduce the deer herd on the refuge. A biological...

  17. Annual Hunting Program : Big Game : Parker River National Wildlife Refuge : CY 1988

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This 1988 Annual Big Game Hunting Program outlines the reasons and regulations for white-tailed deer hunting on Parker River National Wildlife Refuge. The...

  18. Annual Big Game Hunting Program : Parker River National Wildlife Refuge : CY 1993

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This 1993 Annual Big Game Hunting Program outlines the reasons and regulations for white-tailed deer hunting on Parker River National Wildlife Refuge. The...

  19. Annual Big Game Hunting Program : Parker River National Wildlife Refuge : CY 1990

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This 1990 Annual Big Game Hunting Program outlines the reasons and regulations for white-tailed deer hunting on Parker River National Wildlife Refuge. The...

  20. Environmental Action Statement : [Northern Tallgrass Prairie National Wildlife Refuge Hunting Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This Environmental Action Statement for the Northern Tallgrass Prairie NWR Hunting Plan states that the hunting program is not found to have significant...

  1. Finding of No Significant Impact : Hunting Plan for Northern Tallgrass Prairie National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This FONSI for the Northern Tallgrass Prairie NWR Hunting Plan states that the hunting proposal does not constitute a major Federal action significantly affecting...

  2. Outreach Plan for Opening Additional Land to Hunting on Northern Tallgrass Prairie National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This outreach plan for Northern Tallgrass Prairie NWR will expand hunting opportunities on the Refuge in 2011 in accordance with the approved Refuge Hunt Plan.

  3. [The determination of the ballistics of a hunting rifle loaded with a Poleva-3 bullet].

    Science.gov (United States)

    Svetlakov, A V; Sotin, A V; Nagornov, M N

    2014-01-01

    Various approaches are considered to determine the shooting range of a hunting rifle loaded with a Poleva-3 bullet from the specific features of gunshot injuries inflicted by container-type Poleba-3 bullets for hunting rifles.

  4. Symbolism and ritual practices related to hunting in Maya communities from central Quintana Roo, Mexico

    National Research Council Canada - National Science Library

    Santos-Fita, Dídac; Naranjo, Eduardo J; Estrada, Erin I J; Mariaca, Ramón; Bello, Eduardo

    2015-01-01

    Some Mayan peasant-hunters across the Yucatan Peninsula in Mexico still carry out a hunting ritual -Loojil Ts'oon, Loj Ts'oon or Carbine Ceremony- in which they renew the divine permission for hunting...

  5. Annual Hunting Program : Migratory Waterfowl : Parker River National Wildlife Refuge : 1985-86

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This 1985-86 Annual Migratory Waterfowl Hunting Program outlines the reasons and regulations for migratory waterfowl hunting on Parker River National Wildlife...

  6. The Montana Wild Virus Hunt | NIH MedlinePlus the Magazine

    Science.gov (United States)

    ... Health: The Montana Wild Virus Hunt Follow us The Montana Wild Virus Hunt Blake Wiedenheft is a ... their passion for health and science. What is the focus of your research? Viruses that infect bacteria ( ...

  7. Hunting for Ancient Tsunamis in the Tropics

    Science.gov (United States)

    Atwater, B. F.

    2007-05-01

    the plow for centuries. The outlook for paleotsunami hunting in South and Southeast Asia probably depends on new targets that include coral boulders and scarcely disturbed beach-ridge plains in Thailand; archaeological sites that provide cultural timelines in India; lagoons of Sri Lanka; coastal rivers that offer cutbanks and oxbows on beach-ridge plains of Java; delicately laminated deposits of salt flats routinely overrun by storm surges on the arid northern shores of the Arabian Sea; and records of prehistoric land-level change close to fault-rupture areas along the Sunda Trench.

  8. Composting of waste algae: a review.

    Science.gov (United States)

    Han, Wei; Clarke, William; Pratt, Steven

    2014-07-01

    Although composting has been successfully used at pilot scale to manage waste algae removed from eutrophied water environments and the compost product applied as a fertiliser, clear guidelines are not available for full scale algae composting. The review reports on the application of composting to stabilize waste algae, which to date has mainly been macro-algae, and identifies the peculiarities of algae as a composting feedstock, these being: relatively low carbon to nitrogen (C/N) ratio, which can result in nitrogen loss as NH3 and even N2O; high moisture content and low porosity, which together make aeration challenging; potentially high salinity, which can have adverse consequence for composting; and potentially have high metals and toxin content, which can affect application of the product as a fertiliser. To overcome the challenges that these peculiarities impose co-compost materials can be employed.

  9. Potential biomedical applications of marine algae.

    Science.gov (United States)

    Wang, Hui-Min David; Li, Xiao-Chun; Lee, Duu-Jong; Chang, Jo-Shu

    2017-06-03

    Functional components extracted from algal biomass are widely used as dietary and health supplements with a variety of applications in food science and technology. In contrast, the applications of algae in dermal-related products have received much less attention, despite that algae also possess high potential for the uses in anti-infection, anti-aging, skin-whitening, and skin tumor treatments. This review, therefore, focuses on integrating studies on algae pertinent to human skin care, health and therapy. The active compounds in algae related to human skin treatments are mentioned and the possible mechanisms involved are described. The main purpose of this review is to identify serviceable algae functions in skin treatments to facilitate practical applications in this high-potential area. Copyright © 2017 Elsevier Ltd. All rights reserved.

  10. Advances in genetic engineering of marine algae.

    Science.gov (United States)

    Qin, Song; Lin, Hanzhi; Jiang, Peng

    2012-01-01

    Algae are a component of bait sources for animal aquaculture, and they produce abundant valuable compounds for the chemical industry and human health. With today's fast growing demand for algae biofuels and the profitable market for cosmetics and pharmaceuticals made from algal natural products, the genetic engineering of marine algae has been attracting increasing attention as a crucial systemic technology to address the challenge of the biomass feedstock supply for sustainable industrial applications and to modify the metabolic pathway for the more efficient production of high-value products. Nevertheless, to date, only a few marine algae species can be genetically manipulated. In this article, an updated account of the research progress in marine algal genomics is presented along with methods for transformation. In addition, vector construction and gene selection strategies are reviewed. Meanwhile, a review on the progress of bioreactor technologies for marine algae culture is also revisited. Copyright © 2012 Elsevier Inc. All rights reserved.

  11. Wildlife reserves, populations and hunting outcome with smart wildlife

    DEFF Research Database (Denmark)

    Jensen, Frank; Jacobsen, Jette Bredahl; Thorsen, Bo Jellesmark

    2014-01-01

    reach ambiguous results when comparing a situation with and without stress effects. A pure stress effect implies that the population level in a wildlife reserve increase and the population level in the hunting area decrease in optimum. However, this change in optimal population levels increase migration...... from the wildlife reserve to the hunting area in the social optimum. The total effect is, therefore, ambiguous. For the private optimum open-access is assumed and exactly the same results arise as in the social optimum when comparing a situation with and without stress effects....

  12. STRATEGI KOMUNIKASI PEMASARAN EKOWISATA PADA DESTINASI WISATA DOLPHIN HUNTING LOVINA

    Directory of Open Access Journals (Sweden)

    Ni Luh Putu Agustini Karta

    2014-02-01

    Full Text Available The purpose of this research is to find the right marketing communications strategy for Ecotourism’s Destinations, (Dolphin Hunting Lovina, to be sustainable. Design methodology used is a marketing communication approach by adopting the concept of basic elements of the theory of marketing communication, the shift towards integrated marketing approach marketing communications, and public organizational challenges in creating brand awareness. Qualitative research and in-depth interviews carried out to some competent resource. The findings generated that image creation and brand awareness of Dolphin Hunting Lovina is determined by the  organization’s marketing communications and internal audiences

  13. How does harvest size vary with hunting season length?

    DEFF Research Database (Denmark)

    Sunde, Peter; Asferg, Tommy

    2014-01-01

    season length (population management/ethical/other). In non-sedentary species, changes in bag size correlated positively with changes in season length (overall response: b = 0.54, 95%CI: 0.14-0.95): reducing the hunting season to 50% of its initial length would on average result in a 31% reduction (95...... species, changes in season length had no effect on bag size. Our results suggest that manipulating hunting seasons of duration ≥ 1 month by less than 50% is generally inefficient as a means of predictably changing harvest rates. This may be because recreational hunters either invest a fixed effort or aim...

  14. Risk and ethical concerns of hunting male elephant: behavioural and physiological assays of the remaining elephants.

    Directory of Open Access Journals (Sweden)

    Tarryne Burke

    Full Text Available BACKGROUND: Hunting of male African elephants may pose ethical and risk concerns, particularly given their status as a charismatic species of high touristic value, yet which are capable of both killing people and damaging infrastructure. METHODOLOGY/PRINCIPAL FINDINGS: We quantified the effect of hunts of male elephants on (1 risk of attack or damage (11 hunts, and (2 behavioural (movement dynamics and physiological (stress hormone metabolite concentrations responses (4 hunts in Pilanesberg National Park. For eleven hunts, there were no subsequent attacks on people or infrastructure, and elephants did not break out of the fenced reserve. For three focal hunts, there was an initial flight response by bulls present at the hunting site, but their movements stabilised the day after the hunt event. Animals not present at the hunt (both bulls and herds did not show movement responses. Physiologically, hunting elephant bulls increased faecal stress hormone levels (corticosterone metabolites in both those bulls that were present at the hunts (for up to four days post-hunt and in the broader bull and breeding herd population (for up to one month post-hunt. CONCLUSIONS/SIGNIFICANCE: As all responses were relatively minor, hunting male elephants is ethically acceptable when considering effects on the remaining elephant population; however bulls should be hunted when alone. Hunting is feasible in relatively small enclosed reserves without major risk of attack, damage, or breakout. Physiological stress assays were more effective than behavioural responses in detecting effects of human intervention. Similar studies should evaluate intervention consequences, inform and improve best practice, and should be widely applied by management agencies.

  15. Algae inhibition experiment and load characteristics of the algae solution

    Science.gov (United States)

    Xiong, L.; Gao, J. X.; Zhang, Y. X.; Yang, Z. K.; Zhang, D. Q.; He, W.

    2016-08-01

    It is necessary to inhibit microbial growth in an industrial cooling water system. This paper has developed a Monopolar/Bipolar polarity high voltage pulser with load adaptability for an algal experimental study. The load characteristics of the Chlorella pyrenoidosa solution were examined, and it was found that the solution load is resistive. The resistance is related to the plate area, concentration, and temperature of the solution. Furthermore, the pulser's treatment actually inhibits the algae cell growth. This article also explores the influence of various parameters of electric pulses on the algal effect. After the experiment, the optimum pulse parameters were determined to be an electric field intensity of 750 V/cm, a pulse width per second of 120μs, and monopolar polarity.

  16. Incentivizing Monitoring and Compliance in Trophy Hunting

    Science.gov (United States)

    BUNNEFELD, NILS; EDWARDS, CHARLES T T; ATICKEM, ANAGAW; HAILU, FETENE; MILNER-GULLAND, E J

    2014-01-01

    Conservation scientists are increasingly focusing on the drivers of human behavior and on the implications of various sources of uncertainty for management decision making. Trophy hunting has been suggested as a conservation tool because it gives economic value to wildlife, but recent examples show that overharvesting is a substantial problem and that data limitations are rife. We use a case study of trophy hunting of an endangered antelope, the mountain nyala (Tragelaphus buxtoni), to explore how uncertainties generated by population monitoring and poaching interact with decision making by 2 key stakeholders: the safari companies and the government. We built a management strategy evaluation model that encompasses the population dynamics of mountain nyala, a monitoring model, and a company decision making model. We investigated scenarios of investment into antipoaching and monitoring by governments and safari companies. Harvest strategy was robust to the uncertainty in the population estimates obtained from monitoring, but poaching had a much stronger effect on quota and sustainability. Hence, reducing poaching is in the interests of companies wishing to increase the profitability of their enterprises, for example by engaging community members as game scouts. There is a threshold level of uncertainty in the population estimates beyond which the year-to-year variation in the trophy quota prevented planning by the safari companies. This suggests a role for government in ensuring that a baseline level of population monitoring is carried out such that this level is not exceeded. Our results illustrate the importance of considering the incentives of multiple stakeholders when designing frameworks for resource use and when designing management frameworks to address the particular sources of uncertainty that affect system sustainability most heavily. Incentivando el Monitoreo y el Cumplimiento en la Caza de Trofeos Resumen Científicos conservacionistas cada vez se

  17. Assessing the Danger: Validation of Taiwan Intimate Partner Violence Danger Assessment.

    Science.gov (United States)

    Wang, Pei-ling

    2015-09-01

    The Taiwan Intimate Partner Violence Danger Assessment (TIPVDA) is an IPV risk assessment instrument developed to assist front-line professionals with assessing victim's likelihood of experiencing lethal danger, and is also used to identify intervention strategies. The validation of TIPVDA with an independent sample of 543 female IPV victims in a program was examined in this study. The analysis results revealed the discriminant power of the TIPVDA. In addition, the area under the curve for the receiver operating characteristic curve analysis was strongly supportive of predictive effects of the TIPVDA. And the findings suggest that the TIPVDA had stronger predictive power for high dangerousness. Implications for future research and utilization of the TIPVDA are discussed.

  18. A zoological catalogue of hunted reptiles in the semiarid region of Brazil.

    Science.gov (United States)

    Nóbrega Alves, Rômulo Romeu; Pereira Filho, Gentil Alves; Silva Vieira, Kleber; Silva Souto, Wedson Medeiros; Mendonça, Lívia Emanuelle Tavares; Montenegro, Paulofernandoguedespereira; Almeida, Waltécio de Oliveira; Silva Vieira, Washington Luiz

    2012-07-30

    The variety of interactions between human cultures and herpetofauna is the subject matter of Ethnoherpetology, a subdivision of Ethnozoology. In the semi-arid region of Brazil, many reptiles interact with human communities because of their utility or because of the risks they represent. These interactions have obvious implications for the conservation of reptiles from this region. In this context, ethnoherpetology studies are crucial because they serve as subsidies for guiding strategies for the handling and conservation of reptiles. This paper presents ethnozoological and taxonomic informations of hunted reptiles in the semiarid region of Brazil and analyse the implications on conservation that are related to the interactions between people and reptiles in this region. Taxonomic keys to identifying recorded reptiles are provided. Records of humans interacting with 38 reptile species that belong to 31 genuses and 16 families have been found. The groups with the largest numbers of recorded species were snakes (18 species), and this group was followed in number by lizards (13), chelonians (4), and crocodilians (3). The reptiles that were recorded may be used for the following purposes: medicinal purposes (24 species), food (13 species), ornamental or decorative purposes (11 species), in magical/religious practices (10 species), and as pets (10 species). Some species (n = 16) may have multiple uses. Furthermore, more than half of the species (n = 19) are commonly killed because they are considered potentially dangerous. Strategies for conserving the reptiles of the Brazilian semi-arid region must reconcile and integrate human and conservation needs.

  19. Quantity judgments in the context of risk/reward decision making in striped field mice: first “count,” then hunt

    Science.gov (United States)

    Panteleeva, Sofia; Reznikova, Zhanna; Vygonyailova, Olga

    2013-01-01

    We simulated the situation of risky hunting in the striped field mouse Apodemus agrarius in order to examine whether these animals are able to make a choice between small and large quantities of live prey (ants). In the first (preliminary) experiment we investigated to what extent mice were interested in ants as a live prey and how their hunting activity depended on the quantity of these edible but rather aggressive insects. We placed mice one by one into arenas together with ant groups of different quantities, from 10 to 60. Surprisingly, animals, both wild-caught and laboratory-reared, displayed rather skilled predatory attacks: mice killed and ate from 0.37 ± 003 to 4 ± 0.5 ants per minute. However, there was a threshold number of ants in the arenas when rodents expressed signs of discomfort and started to panic, likely because ants bit them. This threshold corresponds to the dynamic density (about 400 individuals per m2 per min) in the vicinity of anthills and ants' routes in natural environment. In the second experiment mice had to choose between different quantities of ants placed in two transparent tunnels. Ants here served both as food items and as a source of danger. As far as we know, this is the first experimental paradigm based on evaluation of quantity judgments in the context of risk/reward decision making where the animals face a trade-off between the hedonistic value of the prey and the danger it presents. We found that when mice have to choose between 5 vs. 15, 5 vs. 30, and 10 vs. 30 ants, they always tend to prefer the smaller quantity, thus displaying the capacity for distinguishing more from less in order to ensure comfortable hunting. The results of this study are ecologically relevant as they reflect situations and challenges faced by free-living small rodents. PMID:23407476

  20. Comparisons and Assessment of Forest Fire Danger Systems

    Institute of Scientific and Technical Information of China (English)

    Tian Xiao-rui; Douglas J Mcrae; Den Boychuk; Jin Ji-zhong; Gao Cheng-da; Shu Li-fu; Wang Ming-yu

    2005-01-01

    The paper gives a brief description about the current main forest fire danger rating systems in the world, which include forest fire danger rating system used in Canada, USA, Australia, and other countries. It shows the composition, structure and development of the main fire danger rating systems. The limitations of those systems are also discussed. Through a comparison of the three main forest fire danger rating systems the paper describes their differences on development, fuel complex descriptions, inputs and outputs, and their applications and finds that the technologies of the Canadian forest fire danger rating system can be adopted for China to develop a national forest fire danger rating system. Two steps are needed to develop our own national forest fire danger rating system. Firstly, we apply the CFFDRS directly. Then some studies should be done to calibrate the FDRS to local weather and fuel characteristics.

  1. Trophy Hunting, Conservation, and Rural Development in Zimbabwe: Issues, Options, and Implications

    Directory of Open Access Journals (Sweden)

    Victor K. Muposhi

    2016-01-01

    Full Text Available Trophy hunting has potential to support conservation financing and contribute towards rural development. We conducted a systematic review of the Zimbabwean trophy hunting perspective spanning from pre-1890 to 2015, by examining the following: (1 evolution of legal instruments, administration, and governance of trophy hunting, (2 significance of trophy hunting in conservation financing and rural development, and (3 key challenges, emerging issues in trophy hunting industry, and future interventions. Our review shows that (i there has been a constant evolution in the policies related to trophy hunting and conservation in Zimbabwe as driven by local and international needs; (ii trophy hunting providing incentives for wildlife conservation (e.g., law enforcement and habitat protection and rural communities’ development. Emerging issues that may affect trophy hunting include illegal hunting, inadequate monitoring systems, and hunting bans. We conclude that trophy hunting is still relevant in wildlife conservation and rural communities’ development especially in developing economies where conservation financing is inadequate due to fiscal constraints. We recommend the promotion of net conservation benefits for positive conservation efforts and use of wildlife conservation credits for the opportunity costs associated with reducing trophy hunting off-take levels and promoting nonconsumptive wildlife use options.

  2. A hedonic analysis of big game hunting club dues in Georgia, USA

    Science.gov (United States)

    James C. Mingie; Neelam C. Poudyal; J. M.  Bowker; Michael T.  Mengak; Jacek P.  Siry

    2017-01-01

    Hunting lease revenue can be a reliable supplemental income for forest landowners. Although studies have examined factors influencing per acre lease rates, little is known about how various characteristics are capitalized in hunting club dues. The objective of this study was to conduct a hedonic analysis of big game hunting club dues in Georgia, USA using a variety of...

  3. 76 FR 59304 - 2011-2012 Refuge-Specific Hunting and Sport Fishing Regulations; Correction

    Science.gov (United States)

    2011-09-26

    ... for those activities, and amended certain regulations on other refuges that pertain to migratory game bird hunting, upland game hunting, big game hunting, and sport fishing for the 2011-2012 season... National Wildlife Refuge in the State of Texas, which printed at page 56086. Amendment 30f. reads, in part...

  4. The acquisition of dangerous biological materials :

    Energy Technology Data Exchange (ETDEWEB)

    Aceto, Donato Gonzalo; Astuto-Gribble, Lisa M.; Gaudioso, Jennifer M.

    2007-11-01

    Numerous terrorist organizations have openly expressed interest in producing and deploying biological weapons. However, a limiting factor for many terrorists has been the acquisition of dangerous biological agents, as evidenced by the very few successful instances of biological weapons use compared to the number of documented hoaxes. Biological agents vary greatly in their ability to cause loss of life and economic damage. Some agents, if released properly, can kill many people and cause an extensive number of secondary infections; other agents will sicken only a small number of people for a short period of time. Consequently, several biological agents can potentially be used to perpetrate a bioterrorism attack but few are likely capable of causing a high consequence event. It is crucial, from a US national security perspective, to more deeply understand the likelihood that terrorist organizations can acquire the range of these agents. Few studies have attempted to comprehensively compile the technical information directly relevant to the acquisition of dangerous bacteria, viruses and toxins. In this report, technical fact sheets were assembled for 46 potentially dangerous biological agents. Much of the information was taken from various research sources which could ultimately and significantly expedite and improve bioterrorism threat assessments. By systematically examining a number of specific agent characteristics included in these fact sheets, it may be possible to detect, target, and implement measures to thwart future terrorist acquisition attempts. In addition, the information in these fact sheets may be used as a tool to help laboratories gain a rudimentary understanding of how attractive a method laboratory theft is relative to other potential acquisition modes.

  5. Dangerous situations in a synchronized flow model

    Science.gov (United States)

    Jiang, Rui; Wu, Qing-Song

    2007-04-01

    This paper studies the dangerous situation (DS) in a synchronized flow model. The DS on the two branches of the fundamental diagram are investigated, respectively. It is shown that different relationship between DS probability and the density exists in the synchronized flow and in the jams. Moreover, we prove that there is no DS caused by non-stopped car although the model itself is a non-exclusion process. We classify the DS into four sub-types and study the probability of these four sub-types. The simulation result is consistent with the real traffic.

  6. Russian vaccines against especially dangerous bacterial pathogens

    Science.gov (United States)

    Feodorova, Valentina A; Sayapina, Lidiya V; Corbel, Michael J; Motin, Vladimir L

    2014-01-01

    In response to the epidemiological situation, live attenuated or killed vaccines against anthrax, brucellosis, cholera, glanders, plague and tularemia were developed and used for immunization of at-risk populations in the Former Soviet Union. Certain of these vaccines have been updated and currently they are used on a selective basis, mainly for high risk occupations, in the Russian Federation. Except for anthrax and cholera these vaccines currently are the only licensed products available for protection against the most dangerous bacterial pathogens. Development of improved formulations and new products is ongoing. PMID:26038506

  7. A dangerous movie? Hollywood does psychoanalysis.

    Science.gov (United States)

    Ferrell, Donald R; Silverman, Martin A

    2014-12-01

    After the appearance of David Cronenberg's film A Dangerous Method in 2011, dealing with the relationships of Sigmund Freud, C. G. Jung and Sabina Spielrein, Dr. Donald Ferrell published: A Dangerous Method, A Film Directed by David Cronenberg: An Extended Review (Ferrell 2012) in the Journal of Religion and Health. Upon its publication, Dr. Ferrell's article was nominated for a Gradiva Award by the National Association for the Advancement of Psychoanalysis. On November 1, 2013, the Association for the Psychoanalysis of Culture and Society held its annual conference at Rutgers University, New Brunswick, NJ. Dr. Billie Pivnick, a member at large of the Board of Directors of the APCS and also on the Editorial Board of the Journal of Religion and Health, persuaded the 2013 Conference Program Committee that Cronenberg's film would make an interesting subject for discussion for conference participants. To that end, Dr. Pivnick invited Dr. Ferrell, C. G. Jung Institute of New York, Dr. Steven Reisner, Coalition for an Ethical Psychology, and Dr. Martin Silverman, Training and Supervising Analyst and Supervising Child Analyst at the Institute for Psychoanalytic Education, NYU College of Medicine, Training and Supervising Analyst at the Center for Psychotherapy and Psychoanalysis of New Jersey, and Associate Editor of The Psychoanalytic Quarterly to serve as panel members to discuss: A Dangerous Movie? Hollywood does Psychoanalysis. Presentations on Cronenberg's film and the early history of psychoanalysis were given by Drs. Ferrell and Reisner, followed by a response to their presentations by Dr. Silverman. Dr. Pivnick chaired the session. The articles presented here were given originally at the APCS conference by Dr. Ferrell and Dr. Silverman. Dr. Reisner declined the invitation to submit his presentation for publication. Dr. Silverman's remarks were based not only on the presentation given by Dr. Ferrell at the session on A Dangerous Movie?, but also on his close and

  8. Oil pollution dangers on the German coast

    Energy Technology Data Exchange (ETDEWEB)

    Vauk, G.

    1984-03-01

    Helgoland waters in the German Bight are a vital wintering area for seabirds. As long as the discharge of waste oil and oily water is not completely avoided, large amounts of oil will continuously get into the sea. Therefore, the danger to the marine life, especially seabirds, increases. Helgoland presents the possibility of determining the extent and the effect of the oil pollution of the North Sea, since it is placed in the point of intersection of important steamship routes and also oil slicks drifted by the north-west winds along the German Bight. Seabirds are indicators for the quantity, the type and the temporal distribution of oil.

  9. [Mental disorders and dangerous acting out].

    Science.gov (United States)

    Bouchard, Jean-Pierre

    2015-01-01

    The major mental disorders which are most likely to lead to dangerous acting out are adult psychoses (schizophrenia and paranoia) and severe mood disorders (major depressive episodes and mania). Good knowledge of the symptomatology of these pathologies and their identification can help to anticipate and prevent much of the violence which people with these disorders may inflict on others or themselves. After mental assessment, those who commit wrongful and criminal acts may be ruled to be criminally irresponsible. They are then handed over to the relevant health care authorities for treatment for their mental disorders.

  10. Evaluating the Effects of Climate Change on Indigenous Marine Mammal Hunting in Northern and Western Alaska Using Traditional Knowledge

    Directory of Open Access Journals (Sweden)

    Henry P. Huntington

    2017-09-01

    Full Text Available Iñupiaq, Yup'ik, and Cup'ik hunters in 14 Alaska Native communities described a rapidly changing marine environment in qualitative traditional knowledge interviews conducted over the course of a decade with 110 individuals. Based on their observations, sea ice conditions are the most notable change, with later freeze-up, thinner and less reliable ice, and earlier and more rapid break-up. Marine mammal populations in northern and western Alaska have been affected by changes in the physical environment, with alterations to migratory timing and routes, distribution, abundance, health, and behavior. Despite these changes, marine mammal populations in the region remain generally healthy and abundant. For hunters, access is the biggest challenge posed by changing conditions. Sea ice is less safe for travel, particularly for more southerly communities, making hunting more dangerous or impossible. Rapid break-up has reduced the time available for hunting amid broken ice in spring, formerly a dependable and preferred season. Social change also affects the ways in which hunting patterns change. Increased industrial development, for example, can also alter marine mammal distribution and reduce hunting opportunity. Reduced use of animal skins for clothing and other purposes has reduced demand. More powerful and reliable engines make day trips easier, reducing the time spent camping. An essential component of adjustment and adaptation to changing conditions is the retention of traditional values and the acquisition of new information to supplement traditional knowledge. Our findings are consistent with, and add detail to, what is known from previous traditional knowledge and scientific studies. The ways in which hunters gather new information and incorporate it into their existing understanding of the marine environment deserves further attention, both as a means of monitoring change and as a key aspect of adaptation. While the changes to date have been

  11. DGDG and Glycolipids in Plants and Algae.

    Science.gov (United States)

    Kalisch, Barbara; Dörmann, Peter; Hölzl, Georg

    2016-01-01

    Photosynthetic organelles in plants and algae are characterized by the high abundance of glycolipids, including the galactolipids mono- and digalactosyldiacylglycerol (MGDG, DGDG) and the sulfolipid sulfoquinovosyldiacylglycerol (SQDG). Glycolipids are crucial to maintain an optimal efficiency of photosynthesis. During phosphate limitation, the amounts of DGDG and SQDG increase in the plastids of plants, and DGDG is exported to extraplastidial membranes to replace phospholipids. Algae often use betaine lipids as surrogate for phospholipids. Glucuronosyldiacylglycerol (GlcADG) is a further glycolipid that accumulates under phosphate deprived conditions. In contrast to plants, a number of eukaryotic algae contain very long chain polyunsaturated fatty acids of 20 or more carbon atoms in their glycolipids. The pathways and genes for galactolipid and sulfolipid synthesis are largely conserved between plants, Chlorophyta, Rhodophyta and algae with complex plastids derived from secondary or tertiary endosymbiosis. However, the relative contribution of the endoplasmic reticulum- and plastid-derived lipid pathways for glycolipid synthesis varies between plants and algae. The genes for glycolipid synthesis encode precursor proteins imported into the photosynthetic organelles. While most eukaryotic algae contain the plant-like galactolipid (MGD1, DGD1) and sulfolipid (SQD1, SQD2) synthases, the red alga Cyanidioschyzon harbors a cyanobacterium-type DGDG synthase (DgdA), and the amoeba Paulinella, derived from a more recent endosymbiosis event, contains cyanobacterium-type enzymes for MGDG and DGDG synthesis (MgdA, MgdE, DgdA).

  12. Algae Biofuel in the Nigerian Energy Context

    Science.gov (United States)

    Elegbede, Isa; Guerrero, Cinthya

    2016-05-01

    The issue of energy consumption is one of the issues that have significantly become recognized as an important topic of global discourse. Fossil fuels production reportedly experiencing a gradual depletion in the oil-producing nations of the world. Most studies have relatively focused on biofuel development and adoption, however, the awareness of a prospect in the commercial cultivation of algae having potential to create economic boost in Nigeria, inspired this research. This study aims at exploring the potential of the commercialization of a different but commonly found organism, algae, in Nigeria. Here, parameters such as; water quality, light, carbon, average temperature required for the growth of algae, and additional beneficial nutrients found in algae were analysed. A comparative cum qualitative review of analysis was used as the study made use of empirical findings on the work as well as the author's deductions. The research explored the cultivation of algae with the two major seasonal differences (i.e. rainy and dry) in Nigeria as a backdrop. The results indicated that there was no significant difference in the contribution of algae and other sources of biofuels as a necessity for bioenergy in Nigeria. However, for an effective sustainability of this prospect, adequate measures need to be put in place in form of funding, provision of an economically-enabling environment for the cultivation process as well as proper healthcare service in the face of possible health hazard from technological processes. Further studies can seek to expand on the potential of cultivating algae in the Harmattan season.

  13. Sport hunting, predator control and conservation of large carnivores.

    Directory of Open Access Journals (Sweden)

    Craig Packer

    Full Text Available Sport hunting has provided important economic incentives for conserving large predators since the early 1970's, but wildlife managers also face substantial pressure to reduce depredation. Sport hunting is an inherently risky strategy for controlling predators as carnivore populations are difficult to monitor and some species show a propensity for infanticide that is exacerbated by removing adult males. Simulation models predict population declines from even moderate levels of hunting in infanticidal species, and harvest data suggest that African countries and U.S. states with the highest intensity of sport hunting have shown the steepest population declines in African lions and cougars over the past 25 yrs. Similar effects in African leopards may have been masked by mesopredator release owing to declines in sympatric lion populations, whereas there is no evidence of overhunting in non-infanticidal populations of American black bears. Effective conservation of these animals will require new harvest strategies and improved monitoring to counter demands for predator control by livestock producers and local communities.

  14. [Patoka River National Wildlife Refuge Hunting and Fishing Plan Amendment

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This amendment identifies new areas open to hunting and fishing on Patoka River NWR. A map of the updated boundary is included as well as a brochure with 2001-2002...

  15. Bee Hunt! Ecojustice in Practice for Earth's Buzzing Biodiversity

    Science.gov (United States)

    Mueller, Michael P.; Pickering, John

    2010-01-01

    The Bee Hunt! project and curriculum are designed with cultural and environmental sensitivity in mind. In this project, K-12 students develop their awareness and understanding of science and investigate North American pollinator declines. Bees, butterflies, and other pollinators are integrally connected to the pollination of the world's crops for…

  16. Using Scavenger Hunts to Familiarize Students with Scientific Journal Articles

    Directory of Open Access Journals (Sweden)

    Rebeccah S. Lijek

    2015-11-01

    Full Text Available Primary scientific literature can be difficult to navigate for anyone unfamiliar with its foreign, formal structure. We sought to create a fun, easy learning tool to help familiarize students of all ages with the structure of a scientific article. Our main learning objective was for the student to realize that science writing is formulaic—that specific information is found in predictable locations within an article—and that, with an understanding of the formula, anyone can comfortably navigate any journal article and accurately predict what to expect to find in each section. To this end, we designed a Journal Article Scavenger Hunt that requires the user to find and identify a series of commonplace features of a primary research article. The scavenger hunt activity is quick and easy to implement, and is adaptable to various ages and settings, including the classroom, lab, and at outreach events. The questions in the scavenger hunt can be scaled in difficulty and specificity to suit the instructor’s needs. Over many years of using this activity, we have received positive feedback from students of all ages, from elementary school students to lay adult-learners as well as science teachers themselves. By making the unknown seem predictable and approachable, the scavenger hunt helps a variety of audiences feel more comfortable with science and more confident in their ability to engage directly with the scientific literature.

  17. Sleep Patterns of Naval Aviation Personnel Conducting Mine Hunting Operations

    Science.gov (United States)

    2006-09-01

    Activity Measurement Rest and activity levels were measured using a small wrist worn ambulatory activity monitor (MotionLogger Actigraph, Ambulatory...conducting mine hunting operations. Wrist activity monitors (actigraphs) were used to determine objective assessments of sleep quantity and quantity...participants were qualified helicopter aviation personnel. We examined demographic variables along with sleep quantity ( measured by actigraphy

  18. The hunt for the last respondent : nonresponse in sample surveys

    NARCIS (Netherlands)

    Stoop, I.A.L.

    2005-01-01

    The Hunt for the Last Respondent has been inspired by concerns about the possibly detrimental effect of nonresponse on the accuracy of survey outcomes, as response rates are generally considered to be the most important criterion of survey quality, and the Netherlands is notorious for its low respon

  19. The Information Literacy of Survey Mark Hunting: A Dialogue

    Directory of Open Access Journals (Sweden)

    Jennifer Galas

    2016-11-01

    Full Text Available In Brief: This article makes connections between the ACRL Framework for Information Literacy for Higher Education and the activity of survey mark hunting. After a brief review of the literature related to geographic information systems (GIS, information literacy, and gamification of learning, the authors enter into a dialogue in which they discover and describe the...

  20. Illegal hunting cases detected with molecular forensics in Brazil

    Directory of Open Access Journals (Sweden)

    Sanches Alexandra

    2012-08-01

    Full Text Available Abstract Background Illegal hunting is one of the major threats to vertebrate populations in tropical regions. This unsustainable practice has serious consequences not only for the target populations, but also for the dynamics and structure of tropical ecosystems. Generally, in cases of suspected illegal hunting, the only evidence available is pieces of meat, skin or bone. In these cases, species identification can only be reliably determined using molecular technologies. Here, we reported an investigative study of three cases of suspected wildlife poaching in which molecular biology techniques were employed to identify the hunted species from remains of meat. Findings By applying cytochrome b (cyt-b and cytochrome oxidase subunit I (COI molecular markers, the suspected illegal poaching was confirmed by the identification of three wild species, capybara (Hydrochoerus hydrochaeris, Chaco Chachalaca (Ortalis canicollis and Pampas deer (Ozotoceros bezoarticus. In Brazil, hunting is a criminal offense, and based on this evidence, the defendants were found guilty and punished with fines; they may still be sentenced to prison for a period of 6 to 12 months. Conclusions The genetic analysis used in this investigative study was suitable to diagnose the species killed and solve these criminal investigations. Molecular forensic techniques can therefore provide an important tool that enables local law enforcement agencies to apprehend illegal poachers.

  1. Environmental Assessment: Oxbow National Wildlife Refuge Hunt Program

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — As a result of a 2003 lawsuit filed by the Fund for Animals, the U.S. Fish and Wildlife Service (Service) is addressing the cumulative impacts of hunting at 37...

  2. Bacteria Hunt: Evaluating multi-paradigm BCI interaction

    NARCIS (Netherlands)

    Mühl, C.; Gürkök, Hayrettin; Plass - Oude Bos, D.; Thurlings, Marieke E.; Scherffig, Lasse; Duvinage, Matthieu; Elbakyan, Alexandra A.; Kang, SungWook; Poel, Mannes; Heylen, Dirk K.J.

    The multimodal, multi-paradigm brain-computer interfacing (BCI) game Bacteria Hunt was used to evaluate two aspects of BCI interaction in a gaming context. One goal was to examine the effect of feedback on the ability of the user to manipulate his mental state of relaxation. This was done by having

  3. The economic impact of hunting: A regional approach

    Directory of Open Access Journals (Sweden)

    Petrus van der Merwe

    2014-08-01

    Full Text Available The core of South Africa tourism industry is based on wildlife tourism.  Private game reserves and game farms which forms part of wildlife tourism constitute most of the wildlife products in South Africa.  On these private reserves and game farms, hunting is one of the major income generators for product owners.  The aim of this study is to analyse the economic impact of hunting on the regional economies of three of South Africa’s most important hunting provinces. The study used economic multipliers, input-output analysis, and related modelling processes through input-output (supply-use tables and social accounting matrices (SAM. The results differed significantly for the three provinces, with Limpopo receiving the biggest impact (R2.6 billion and the Free State having the highest multiplier (2.08. The geographical location of the game farms, the number of farms per province and the species available all influenced the magnitude of the economic impact of hunters over and above the traditional determinants of economic impact analysis. The implication of the research is that it will help product owners in the development of game farms or hunting products, contribute to policy formulation, especially for government decisions on what products to offer where, and how to create more jobs.

  4. First exit distribution and path continuity of Hunt processes

    Institute of Scientific and Technical Information of China (English)

    ZHANG Hui-zeng; KANG Xu-sheng; ZHAO Min-zhi

    2009-01-01

    This paper gives a characterization of a Hunt process path by the first exit left limit distribution. It is also showed that if the first exit left limit distribution leaving any ball from the center is a uniform distribution on the sphere, then the Lévy Processes are a scaled Brownian motion.

  5. Intense selective hunting leads to artificial evolution in horn size.

    Science.gov (United States)

    Pigeon, Gabriel; Festa-Bianchet, Marco; Coltman, David W; Pelletier, Fanie

    2016-04-01

    The potential for selective harvests to induce rapid evolutionary change is an important question for conservation and evolutionary biology, with numerous biological, social and economic implications. We analyze 39 years of phenotypic data on horn size in bighorn sheep (Ovis canadensis) subject to intense trophy hunting for 23 years, after which harvests nearly ceased. Our analyses revealed a significant decline in genetic value for horn length of rams, consistent with an evolutionary response to artificial selection on this trait. The probability that the observed change in male horn length was due solely to drift is 9.9%. Female horn length and male horn base, traits genetically correlated to the trait under selection, showed weak declining trends. There was no temporal trend in genetic value for female horn base circumference, a trait not directly targeted by selective hunting and not genetically correlated with male horn length. The decline in genetic value for male horn length stopped, but was not reversed, when hunting pressure was drastically reduced. Our analysis provides support for the contention that selective hunting led to a reduction in horn length through evolutionary change. It also confirms that after artificial selection stops, recovery through natural selection is slow.

  6. Applicability of age-based hunting regulations for African leopards.

    Science.gov (United States)

    Balme, Guy Andrew; Hunter, Luke; Braczkowski, Alex Richard

    2012-01-01

    In species in which juvenile survival depends strongly on male tenure, excessive trophy hunting can artificially elevate male turnover and increase infanticide, potentially to unsustainable levels. Simulation models show that the likelihood of safe harvests can be improved by restricting offtakes to males old enough to have reared their first cohort of offspring to independence; in the case of African leopards, males were ≥7 years old. Here, we explore the applicability of an age-based approach for regulating trophy hunting of leopards. We conducted a structured survey comprising photographs of known-age leopards to assess the ability of wildlife practitioners to sex and age leopards. We also evaluated the utility of four phenotypic traits for use by trophy hunters to age male leopards in the field. Our logistic regression models showed that male leopard age affected the likelihood of survey respondents identifying the correct sex; notably, males trophy galleries suggested its wider utility as an aging criterion. Our study demonstrated that an age-based hunting approach is practically applicable for leopards. However, implementation would require major reform within the regulatory framework and the hunting industry.

  7. 'Trophy-hunting scripts' among male university students in Zimbabwe.

    Science.gov (United States)

    Muparamoto, Nelson

    2012-12-01

    Drawing on a multi-method qualitative study, this article examines 'trophy-hunting' scripts among male university students in Zimbabwe. 'Trophy hunting' is a term I have adopted to refer to hegemonic masculinity rituals through which men gain social admiration for dating and having sex with as many women as possible. I argue that this trophy hunting is exacerbated by the 'crisis of masculinity' which has been brought about by the harsh macroeconomic environment in Zimbabwe. The latter has reduced men's access to the material trappings that denote successful masculinity in a competitive and materialistic environment. Sexual scripting that is based on such trophy hunting makes students susceptible to acquiring HIV infection. Research was conducted with 69 male social-science students at a Zimbabwean university, and the findings were analysed within a post-structural conceptual framework. The findings point to the existence of 'toxic masculinities' among male students. In their endeavour to live up to hegemonic masculinity expectations of the university bachelor, they end up being trapped in what can be described as 'toxic masculinity entrapments.' There is a need to challenge these identities if efforts against HIV and AIDS are to be successful.

  8. The Public Services Job Hunt: Observations and Advice

    Science.gov (United States)

    Saunders, Laura

    2014-01-01

    The library science job market is competitive, and library and information science (LIS) students and new graduates often have questions and concerns about how to engage in a successful job hunt. Based on research with employers and interactions with students and alumni, the author offers advice for job-seekers looking for public services…

  9. Using Scavenger Hunts to Familiarize Students with Scientific Journal Articles.

    Science.gov (United States)

    Lijek, Rebeccah S; Fankhauser, Sarah C

    2016-03-01

    Primary scientific literature can be difficult to navigate for anyone unfamiliar with its foreign, formal structure. We sought to create a fun, easy learning tool to help familiarize students of all ages with the structure of a scientific article. Our main learning objective was for the student to realize that science writing is formulaic-that specific information is found in predictable locations within an article-and that, with an understanding of the formula, anyone can comfortably navigate any journal article and accurately predict what to expect to find in each section. To this end, we designed a Journal Article Scavenger Hunt that requires the user to find and identify a series of commonplace features of a primary research article. The scavenger hunt activity is quick and easy to implement, and is adaptable to various ages and settings, including the classroom, lab, and at outreach events. The questions in the scavenger hunt can be scaled in difficulty and specificity to suit the instructor's needs. Over many years of using this activity, we have received positive feedback from students of all ages, from elementary school students to lay adult-learners as well as science teachers themselves. By making the unknown seem predictable and approachable, the scavenger hunt helps a variety of audiences feel more comfortable with science and more confident in their ability to engage directly with the scientific literature. Journal of Microbiology & Biology Education.

  10. 77 FR 25191 - Wildlife and Hunting Heritage Conservation Council

    Science.gov (United States)

    2012-04-27

    ... accordance with the requirements of the Federal Advisory Committee Act, 5 U.S.C. App., we announce that..., the sporting conservation community, the shooting and hunting sports industry, wildlife conservation... support for the Sport Wildlife Trust Fund; 3. Fostering wildlife and habitat conservation and ethics in...

  11. 76 FR 39433 - Wildlife and Hunting Heritage Conservation Council

    Science.gov (United States)

    2011-07-06

    ...). SUPPLEMENTARY INFORMATION: In accordance with the requirements of the Federal Advisory Committee Act, 5 U.S.C... public, the sporting conservation ] community, the shooting and hunting sports industry, wildlife...) Increasing public awareness of and support for the Sport Wildlife Trust Fund; (c) Fostering wildlife and...

  12. [The dangers of blue light: True story!].

    Science.gov (United States)

    Renard, G; Leid, J

    2016-05-01

    The dangers of the blue light are the object of numerous publications, for both the scientific community and the general public. The new prolific development of light sources emitting potentially toxic blue light (415-455nm) ranges from LED (Light Emitting Diodes) lamps for interior lighting to television screens, computers, digital tablets and smartphones using OLED (Organic Light Emitting Diode) or AMOLED (Active-Matrix Organic Light Emitting Diode) technology. First we will review some technical terms and the main characteristics of light perceived by the human eye. Then we will discuss scientific proof of the toxicity of blue light to the eye, which may cause cataract or macular degeneration. Analysis of the light spectra of several light sources, from natural light to LED lamps, will allow us to specify even better the dangers related to each light source. LED lamps, whether used as components for interior lighting or screens, are of concern if they are used for extended viewing times and at short distance. While we can protect ourselves from natural blue light by wearing colored glasses which filter out, on both front and back surfaces, the toxic wavelengths, it is more difficult to protect oneself from LED lamps in internal lighting, the use of which should be restricted to "white warmth" lamps (2700K). As far as OLED or AMOLED screens are concerned, the only effective protection consists of using them occasionally and only for a short period of time. Copyright © 2016 Elsevier Masson SAS. All rights reserved.

  13. Boys Live Dangerously in the Womb

    Science.gov (United States)

    ERIKSSON, JOHAN G.; KAJANTIE, EERO; OSMOND, CLIVE; THORNBURG, KENT; BARKER, DAVID J.P.

    2012-01-01

    The growth of every human fetus is constrained by the limited capacity of the mother and placenta to deliver nutrients to it. At birth, boys tend to be longer than girls at any placental weight. Boy’s placentas may therefore be more efficient than girls, but may have less reserve capacity. In the womb boys grow faster than girls and are therefore at greater risk of becoming undernourished. Fetal undernutrition leads to small size at birth and cardiovascular disorders, including hypertension, in later life. We studied 2003 men and women aged around 62 years who were born in Helsinki, Finland, of whom 644 had hypertension: we examined their body and placental size at birth. In both sexes, hypertension was associated with low birth weight. In men, hypertension was also associated with a long minor diameter of the placental surface. The dangerous growth strategy of boys may be compounded by the costs of compensatory placental enlargement in late gestation. In women, hypertension was associated with a small placental area, which may reduce nutrient delivery to the fetus. In men, hypertension was linked to the mothers’ socioeconomic status, an indicator of their diets: in women it was linked to the mothers’ heights, an indicator of their protein metabolism. Boys’ greater dependence on their mothers’ diets may enable them to capitalize on an improving food supply, but it makes them vulnerable to food shortages. The ultimate manifestation of their dangerous strategies may be that men have higher blood pressures and shorter lives than women. PMID:19844898

  14. [Dangerous comics--only a fantasy?].

    Science.gov (United States)

    Hammon, C P

    1992-01-01

    Both superhero comics and fairy tales are equally popular with children: they create fantasy worlds full of violence and dangers which the hero must overcome. The question is raised whether the criticism of prevailing violence and a lack of realism can be rejected not only when considering fairy tales but also in the case of comics. The comparison of the two genres leads to the following results: Comics with their regressive pull and their independent superhuman heroes represent the archaic world of narcissism unconscious, unwilling to develop and conservative. Violence serves to maintain the original state or regain a harmonious "paradise". However, the rich world of symbols is also the creative source of our existence to which we keep returning--whether in dreams or in other fields of imagination. As works of literature, fairy tales seem to be more progressive and concerned with solutions. In the main, they support the development of the self. Violence is used to overthrow the old order and usher in the new. The aggression results in overcoming the unconscious. The image of the fairy tale hero corresponds to the child's view of the world. He does not seek narcissistic solitude and greatness but the companionship of prince or princess. A progressive and optimistic view of the future as well as a more conservative and retrospective tendency are part of human nature. For children, however, problems of development take precedence. Thus superhero comics are only dangerous for severely disturbed children, but fairy tales are certainly more beneficial.

  15. Errors When Extracting Oil from Algae

    Science.gov (United States)

    Murphy, E.; Treat, R.; Ichiuji, T.

    2014-12-01

    Oil is in popular demand, but the worldwide amount of oil is decreasing and prices for it are steadily increasing. Leading scientists have been working to find a solution of attaining oil in an economically and environmentally friendly way. Researchers at the U.S. Department of Energy's Pacific Northwest National Laboratory (PNNL) have determined that "a small mixture of algae and water can be turned into crude oil in less than an hour" (Sheehan, Duhahay, Benemann, Poessler). There are various ways of growing the algae, such as closed loop and open loop methods, as well as processes of extracting oil, such as hydrothermal liquefaction and the hexane-solvent method. Our objective was to grow the algae (C. reinhardtii) and extract oil from it using NaOH and HCl, because we had easy access to those specific chemicals. After two trials of attempted algae growth, we discovered that a bacteria was killing off the algae. This led us to further contemplation on how this dead algae and bacteria are affecting our environment, and the organisms within it. Eutrophication occurs when excess nutrients stimulate rapid growth of algae in an aquatic environment. This can clog waterways and create algal blooms in blue-green algae, as well as neurotoxic red tide phytoplankton. These microscopic algae die upon consumption of the nutrients in water and are degraded by bacteria. The bacteria respires and creates an acidic environment with the spontaneous conversion of carbon dioxide to carbonic acid in water. This process of degradation is exactly what occurred in our 250 mL flask. When the phytoplankton attacked our algae, it created a hypoxic environment, which eliminated any remaining amounts of oxygen, carbon dioxide, and nutrients in the water, resulting in a miniature dead zone. These dead zones can occur almost anywhere where there are algae and bacteria, such as the ocean, and make it extremely difficult for any organism to survive. This experiment helped us realize the

  16. Analysis on the Gap between Chinese and American Head-hunting Industry

    Institute of Scientific and Technical Information of China (English)

    杨静

    2014-01-01

    Although headhunter entered China more than twenty years, researches on it are far from enough. Current researches on human resource mainly focus on labor market and on-line job hunting. However, as a national strategic industry, develop-ment path of head-hunting industry deserves in-depth research. Based on previous studies and the status quo of domestic head-hunting industry, the below statements tries to analyze the domestic head-hunting industry and find out the gap between Chinese and American head-hunting industry.

  17. 21 CFR 73.185 - Haematococcus algae meal.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 1 2010-04-01 2010-04-01 false Haematococcus algae meal. 73.185 Section 73.185... COLOR ADDITIVES EXEMPT FROM CERTIFICATION Foods § 73.185 Haematococcus algae meal. (a) Identity. (1) The color additive haematococcus algae meal consists of the comminuted and dried cells of the alga...

  18. Metabolic features of the cell danger response.

    Science.gov (United States)

    Naviaux, Robert K

    2014-05-01

    The cell danger response (CDR) is the evolutionarily conserved metabolic response that protects cells and hosts from harm. It is triggered by encounters with chemical, physical, or biological threats that exceed the cellular capacity for homeostasis. The resulting metabolic mismatch between available resources and functional capacity produces a cascade of changes in cellular electron flow, oxygen consumption, redox, membrane fluidity, lipid dynamics, bioenergetics, carbon and sulfur resource allocation, protein folding and aggregation, vitamin availability, metal homeostasis, indole, pterin, 1-carbon and polyamine metabolism, and polymer formation. The first wave of danger signals consists of the release of metabolic intermediates like ATP and ADP, Krebs cycle intermediates, oxygen, and reactive oxygen species (ROS), and is sustained by purinergic signaling. After the danger has been eliminated or neutralized, a choreographed sequence of anti-inflammatory and regenerative pathways is activated to reverse the CDR and to heal. When the CDR persists abnormally, whole body metabolism and the gut microbiome are disturbed, the collective performance of multiple organ systems is impaired, behavior is changed, and chronic disease results. Metabolic memory of past stress encounters is stored in the form of altered mitochondrial and cellular macromolecule content, resulting in an increase in functional reserve capacity through a process known as mitocellular hormesis. The systemic form of the CDR, and its magnified form, the purinergic life-threat response (PLTR), are under direct control by ancient pathways in the brain that are ultimately coordinated by centers in the brainstem. Chemosensory integration of whole body metabolism occurs in the brainstem and is a prerequisite for normal brain, motor, vestibular, sensory, social, and speech development. An understanding of the CDR permits us to reframe old concepts of pathogenesis for a broad array of chronic, developmental

  19. Collection, Isolation and Culture of Marine Algae.

    Science.gov (United States)

    James, Daniel E.

    1984-01-01

    Methods of collecting, isolating, and culturing microscopic and macroscopic marine algae are described. Three different culture media list of chemicals needed and procedures for preparing Erdschreiber's and Provasoli's E. S. media. (BC)

  20. Role of marine algae in organic farming

    Digital Repository Service at National Institute of Oceanography (India)

    Pereira, N.; Verlecar, X.N.

    As the efforts to unearth new sources for organic farming accelerate, one needs to evaluate the options available. Marine algae popularly known as seaweeds, have served mankind from times immemorial. form. Seaweed-based fertilizer is rich in growth...

  1. Dipeptides from the red alga Acanthopora spicifera

    Digital Repository Service at National Institute of Oceanography (India)

    Wahidullah, S.; DeSouza, L.; Kamat, S.Y.

    An investigation of red alga Acanthophora spicifera afforded the known peptide, aurantiamide acetate and a new diastereoisomer of this dipeptide (dia-aurantiamide acetate). This is a first report of aurantiamide acetate from a marine source...

  2. 2011 Biomass Program Platform Peer Review: Algae

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Joyce [Office of Energy Efficiency and Renewable Energy (EERE), Washington, DC (United States)

    2012-02-01

    This document summarizes the recommendations and evaluations provided by an independent external panel of experts at the 2011 U.S. Department of Energy Biomass Program’s Algae Platform Review meeting.

  3. Thraustochytrid fungi associated with marine algae

    Digital Repository Service at National Institute of Oceanography (India)

    Raghukumar, C.

    of these diatoms but grew only on senescent moribund cultures. Some of the macroalgae collected from Kavarathi atoll of Lakshadweep islands also harboured thraustochytrid fungi. Contrary to other reports these thraustochytrids were found on living healthy algae...

  4. Marine algae and seagrasses of Tekirdag (Black Sea,Turkey)*

    OpenAIRE

    AYSEL, Veysel; Erdugan, Hüseyin; Dural, Berrin; SükranOkudan, E.

    2015-01-01

    Abstract In this study, marine algae and seagrasses in the upper infralittoral zone of the Black Sea coast of Tekirdag (Turkey) were investigated. A total 156 taxon (153 algae and 3 seagrasses) in species or inferior to the species category were determined. 15 of them belong to blue-green bacteria (Cyanophyta), 84 to red algae (Rhodophyta), 26 to brown algae (Heterokontophyta), 28 to green algae (Chlorophyta) and 3 to marineflowering plants (Magnoliophyta).

  5. Marine algae and seagrasses of Tekirdag (Black Sea,Turkey)*

    OpenAIRE

    AYSEL, Veysel; Erdugan, Hüseyin; Dural, Berrin; SükranOkudan, E.

    2006-01-01

    Abstract In this study, marine algae and seagrasses in the upper infralittoral zone of the Black Sea coast of Tekirdag (Turkey) were investigated. A total 156 taxon (153 algae and 3 seagrasses) in species or inferior to the species category were determined. 15 of them belong to blue-green bacteria (Cyanophyta), 84 to red algae (Rhodophyta), 26 to brown algae (Heterokontophyta), 28 to green algae (Chlorophyta) and 3 to marineflowering plants (Magnoliophyta).

  6. Hunting the Southern Skies with SIMBA

    Science.gov (United States)

    2001-08-01

    : View of the SIMBA instrument First observations with SIMBA SIMBA ("SEST IMaging Bolometer Array") was built and installed at the Swedish-ESO Submillimetre Telescope (SEST) at La Silla (Chile) within an international collaboration between the University of Bochum and the Max Planck Institute for Radio Astronomy in Germany, the Swedish National Facility for Radio Astronomy and ESO . The SIMBA ("Lion" in Swahili) instrument detects radiation at a wavelength of 1.2 mm . It has 37 "horns" and acts like a camera with 37 picture elements (pixels). By changing the pointing direction of the telescope, relatively large sky fields can be imaged. As the first and only imaging millimetre instrument in the southern hemisphere , SIMBA now looks up towards rich and virgin hunting grounds in the sky. Observations at millimetre wavelengths are particularly useful for studies of star formation , deep inside dense interstellar clouds that are impenetrable to optical light. Other objects for which SIMBA is especially suited include planet-forming disks of cold dust around nearby stars and extremely distant galaxies in the early universe , still in the stage of formation. During the first observations, SIMBA was used to study the gas and dust content of star-forming regions in our own Milky Way Galaxy, as well as in the Magellanic Clouds and more distant galaxies. It was also used to record emission from planetary nebulae , clouds of matter ejected by dying stars. Moreover, attempts were made to detect distant galaxies and quasars radiating at mm-wavelengths and located in two well-studied sky fields, the "Hubble Deep Field South" and the "Chandra Deep Field" [1]. Observations with SEST and SIMBA also serve to identify objects that can be observed at higher resolution and at shorter wavelengths with future southern submm telescopes and interferometers such as APEX (see MPG Press Release 07/01 of 6 July 2001) and ALMA. SIMBA images regions of high-mass star formation ESO PR Photo 28a/01 ESO

  7. Spring snow goose hunting influences body composition of waterfowl staging in Nebraska

    Science.gov (United States)

    Pearse, Aaron T.; Krapu, Gary L.; Cox, Robert R.

    2012-01-01

    A spring hunt was instituted in North America to reduce abundance of snow geese (Chen caerulescens) by increasing mortality of adults directly, yet disturbance from hunting activities can indirectly influence body condition and ultimately, reproductive success. We estimated effects of hunting disturbance by comparing body composition of snow geese and non-target species, greater white-fronted geese (Anser albifrons) and northern pintails (Anas acuta) collected in portions of south-central Nebraska that were open (eastern Rainwater Basin, ERB) and closed (western Rainwater Basin, WRB; and central Platte River Valley, CPRV) to snow goose hunting during springs 1998 and 1999. Lipid content of 170 snow geese was 25% (57 g) less in areas open to hunting compared to areas closed during hunting season but similar in all areas after hunting was concluded in the ERB. Protein content of snow geese was 3% (14 g) less in the region open to hunting. Greater white-fronted geese had 24% (76 g; n = 129) less lipids in the hunted portion of the study area during hunting season, and this difference persisted after conclusion of hunting season. We found little difference in lipid or protein content of northern pintails in relation to spring hunting. Indirect effects of spring hunting may be considered a collateral benefit regarding efforts to reduce overabundant snow goose populations. Disrupted nutrient storage observed in greater white-fronted geese represents an unintended consequence of spring hunting that has potential to adversely affect reproduction for this and other species of waterbirds staging in the region.

  8. The thrill of the chase: uncovering illegal sport hunting in Brazil through YouTube™ posts

    Directory of Open Access Journals (Sweden)

    Hani R. El Bizri

    2015-09-01

    Full Text Available The impacts of unregulated sport hunting can severely affect populations of target game species. Because hunting in Brazil is limited by law, obtaining data on illegal sport hunting in this country is challenging. We used an unusual online resource, YouTube™, to detect the occurrence of sport hunting in Brazil, measure the impacts of the activity on the main Brazilian game species and biomes, evaluate the opinions of hunters and internet users on sport hunting, and discuss the need for policy interventions in wildlife conservation in this country. We found 383 videos related to Brazilian sport hunting on YouTube™, accounting for more than 15 million views. Most videos were produced in the Cerrado (Brazilian savannah and approximately 70% of them depicted events of pursuit and killing of wild animals, especially lowland pacas (Cuniculus paca and armadillos (Family Dasypodidae. Videos were posted primarily in July and December, coinciding with the two main Brazilian vacation periods. Furthermore, the shotguns identified on videos show that sport hunters expend large sums of money to undertake their hunts. These results indicate that Brazilian sport hunters are possibly wealthier urban residents who travel to rural areas to hunt, contrasting with previous hunting studies in the country. Most viewers declared themselves in favor of sport hunting in comments (n = 2893 and ratings (n = 36,570 of the videos. Discussions generated by comments suggest that Brazilian sport hunters employ several informal management strategies to maintain game species stocks for future hunting and intensely question the restrictions of Brazilian environmental policies. Our results demonstrate that solutions are needed for the regulation of sport hunting in Brazil. Government actions, whether to increase surveillance or legalize hunting programs, should take into account the opinions of sport hunters and their perceptions on hunting dynamics to support effective policy

  9. THE SOIL ALGAE OF CIBODAS FOREST RESERVE

    Directory of Open Access Journals (Sweden)

    Anne Johnson

    2014-01-01

    Full Text Available Three species of green algae and one blue-green alga were recorded from eight samples of soil found associated with bryophytes in the Cibodas Forest Reserve. Chemical analysis of the soil showed severe leaching of soluable mineral substances associated with a low pH. The low light intensity under forest conditions and the low pH may account for the limited algal flora.

  10. Modelling avalanche danger and understanding snow depth variability

    OpenAIRE

    2010-01-01

    This thesis addresses the causes of avalanche danger at a regional scale. Modelled snow stratigraphy variables were linked to [1] forecasted avalanche danger and [2] observed snowpack stability. Spatial variability of snowpack parameters in a region is an additional important factor that influences the avalanche danger. Snow depth and its change during individual snow fall periods are snowpack parameters which can be measured at a high spatial resolution. Hence, the spatial distribution of sn...

  11. The danger of misunderstanding ‘culture’

    Directory of Open Access Journals (Sweden)

    Keller, E.

    2009-12-01

    Full Text Available Most conservationists working in Madagascar recognise thatif conservation goals are to be achieved, conservation bodieshave to work together with, rather than against, local people.One important aspect of this is taking local ‘culture’ into account.However, what is understood by ‘culture’ in such contexts tendsto be extremely partial as ‘culture’ is almost always limited totaboos (fady. The article discusses the danger of such a narrowview suggesting that ‘culture’ is infinitely more complex andsubtle than its immediately apparent surface. I argue that if conservationists’ commitment to take ‘culture’ seriously is genuine, it must also apply to those cultural phenomena that are in conflict with conservation programmes. This applies in particular to rural Malagasy people’s desire to have many descendants; a desire which is linked to their fundamental understanding of what represents a meaningful life.

  12. Prions: the danger of biochemical weapons

    Directory of Open Access Journals (Sweden)

    Eric Almeida Xavier

    2014-09-01

    Full Text Available The knowledge of biotechnology increases the risk of using biochemical weapons for mass destruction. Prions are unprecedented infectious pathogens that cause a group of fatal neurodegenerative diseases by a novel mechanism. They are transmissible particles that are devoid of nucleic acid. Due to their singular characteristics, Prions emerge as potential danger since they can be used in the development of such weapons. Prions cause fatal infectious diseases, and to date there is no therapeutic or prophylactic approach against these diseases. Furthermore, Prions are resistant to food-preparation treatments such as high heat and can find their way from the digestive system into the nervous system; recombinant Prions are infectious either bound to soil particles or in aerosols. Therefore, lethal Prions can be developed by malicious researchers who could use it to attack political enemies since such weapons cause diseases that could be above suspicion.

  13. Ethics consultation: a dangerous, antidemocratic charlatanry?

    Science.gov (United States)

    Lilje, Christian

    1993-01-01

    Giles Scofield's argument indicates ethics consultants may need to better clarify what in fact they are and what they are not doing, claiming, and striving for. But we must not step back too far. We must neither engage in putting in envious professional claims for exclusive rights in the area of difficult and momentous decisions in healthcare nor get stuck in discussing normative ethics at the level of metaphysics, ontology, and dogmatics (as has happened in Germany for decades). We must not do so especially in view of the achievements of ethics consultation and the growing demand for it by all parties involved, conceded even by sceptics. Ethics consultation, according to Scofield, appears to be dangerous....Let us look more closely at the logic of the argument by discussing the presumed "antidemocratic" nature. The "new tyranny" of thoughts, and the "proper" role of bioethics consultation. Some considerations about the possibility of ethics expertise shall be left for the end.

  14. Hanford facility dangerous waste permit application

    Energy Technology Data Exchange (ETDEWEB)

    None

    1991-09-18

    This document, Set 2, the Hanford Facility Dangerous Waste Part B Permit Application, consists of 15 chapters that address the content of the Part B checklists prepared by the Washington State Department of Ecology (Ecology 1987) and the US Environmental Protection Agency (40 CFR 270), with additional information requirements mandated by the Hazardous and Solid Waste Amendments of 1984 and revisions of WAC 173-303. For ease of reference, the Washington State Department of Ecology checklist section numbers, in brackets, follow the chapter headings and subheadings. This permit application contains umbrella- type'' documentation with overall application to the Hanford Facility. This documentation is broad in nature and applies to all TSD units that have final status under the Hanford Facility Permit.

  15. The identification of dangerously coking coals

    Energy Technology Data Exchange (ETDEWEB)

    Barriocanal, C.; Patrick, J.W.; Walker, P.A. [Loughborough Univ. of Technology, Leicestershire (United Kingdom)] [and others

    1995-12-31

    When coals are carbonised in slot-type ovens, layers of plastic coal are formed parallel to the oven walls and move progressively inwards eventually meeting at the oven centre. It is within these plastic layers that the principal processes which result in particulate coal being converted into porous, fused coke take place. For some coals, usually having volatile matter contents between 17 and 25wt% (dry, ash-free basis), these processes are accompanied by the generation of measurable gas pressures within the plastic layers which attain maximum levels when the two layers meet at the oven centre. These pressures are transmitted through the coke to the oven walls, causing damage if sufficiently high. Other coals, similar in chemical analysis and swelling properties, can be carbonised with impunity. The technical aspects of the coking pressure phenomenon are well known. However, the fundamental processes involved in the generation of internal gas pressures are not fully understood. Thus, before being used in blends for commercial coke production, potentially dangerous coals are tested by carbonising upwards of 180kg charges in moveable-wall ovens and measuring directly the pressures exerted on the walls. Clearly, it would be helpful if dangerously coking coals could be identified from laboratory tests. Preliminary findings of a laboratory study designed to gain further insight into coking pressure development are presented in this paper. Internal gas pressures have been ascribed to volatiles trapped within either the plastic envelope or the plastic layer implying an overlap of the temperature ranges of volatile release and fluidity. An attempts to assess this view using, initially, thermogravimetric analysis and Gieseler plastometry and, later, a coking bomb are described, the results being related to internal gas pressures measured in a 1.5kg double-wall oven.

  16. Radiological Weapons: How Great Is The Danger?

    Energy Technology Data Exchange (ETDEWEB)

    Moore, G M

    2003-06-01

    One of the underlying purposes of this paper is to provoke thinking about the interplay between the regulation of radioactive materials and the risk of their use in an radiological weapon (RW). Also considered in this paper are the types of RWs that a terrorist might use, the nature of the threat and danger posed by the various types of RWs, the essential elements that must be considered in responding to the terrorist use of an RW, and what steps may need to be taken a priori to minimize the consequences of the inevitable use of an RW. Because radiological dispersal devices (RDDs) have been the focus of so much recent concern and because RDDs are arguably the most likely of RWs to be used by a terrorist group, a major focus of this paper will be on RDDs. Radiological weapons are going to be used by some individual or group, if not this year then next year, or at some time in the foreseeable future. A policy of focusing resources solely on prevention of their use would leave any government open to significant economic disruption when the inevitable use occurs. Preplanning can limit the injuries, property damage, and economic losses that might result from the use of an RW. Moreover, a combination of efforts to prevent and to minimize the impact of RWs may significantly discourage potential users. The dangers from RWs can be dealt with while society continues to enjoy the benefits of nuclear technology that were promised under Atoms for Peace. However, some restructuring of our use of radioactive materials is necessary to ensure that the current and future uses of radioactive materials outweigh the potential disruption caused by misuse of the materials in RWs.

  17. Antioxidant Activity of Hawaiian Marine Algae

    Directory of Open Access Journals (Sweden)

    Anthony D. Wright

    2012-02-01

    Full Text Available Marine algae are known to contain a wide variety of bioactive compounds, many of which have commercial applications in pharmaceutical, medical, cosmetic, nutraceutical, food and agricultural industries. Natural antioxidants, found in many algae, are important bioactive compounds that play an important role against various diseases and ageing processes through protection of cells from oxidative damage. In this respect, relatively little is known about the bioactivity of Hawaiian algae that could be a potential natural source of such antioxidants. The total antioxidant activity of organic extracts of 37 algal samples, comprising of 30 species of Hawaiian algae from 27 different genera was determined. The activity was determined by employing the FRAP (Ferric Reducing Antioxidant Power assays. Of the algae tested, the extract of Turbinaria ornata was found to be the most active. Bioassay-guided fractionation of this extract led to the isolation of a variety of different carotenoids as the active principles. The major bioactive antioxidant compound was identified as the carotenoid fucoxanthin. These results show, for the first time, that numerous Hawaiian algae exhibit significant antioxidant activity, a property that could lead to their application in one of many useful healthcare or related products as well as in chemoprevention of a variety of diseases including cancer.

  18. Antioxidant activity of Hawaiian marine algae.

    Science.gov (United States)

    Kelman, Dovi; Posner, Ellen Kromkowski; McDermid, Karla J; Tabandera, Nicole K; Wright, Patrick R; Wright, Anthony D

    2012-02-01

    Marine algae are known to contain a wide variety of bioactive compounds, many of which have commercial applications in pharmaceutical, medical, cosmetic, nutraceutical, food and agricultural industries. Natural antioxidants, found in many algae, are important bioactive compounds that play an important role against various diseases and ageing processes through protection of cells from oxidative damage. In this respect, relatively little is known about the bioactivity of Hawaiian algae that could be a potential natural source of such antioxidants. The total antioxidant activity of organic extracts of 37 algal samples, comprising of 30 species of Hawaiian algae from 27 different genera was determined. The activity was determined by employing the FRAP (Ferric Reducing Antioxidant Power) assays. Of the algae tested, the extract of Turbinaria ornata was found to be the most active. Bioassay-guided fractionation of this extract led to the isolation of a variety of different carotenoids as the active principles. The major bioactive antioxidant compound was identified as the carotenoid fucoxanthin. These results show, for the first time, that numerous Hawaiian algae exhibit significant antioxidant activity, a property that could lead to their application in one of many useful healthcare or related products as well as in chemoprevention of a variety of diseases including cancer.

  19. Carotenoids in Algae: Distributions, Biosyntheses and Functions

    Directory of Open Access Journals (Sweden)

    Shinichi Takaichi

    2011-06-01

    Full Text Available For photosynthesis, phototrophic organisms necessarily synthesize not only chlorophylls but also carotenoids. Many kinds of carotenoids are found in algae and, recently, taxonomic studies of algae have been developed. In this review, the relationship between the distribution of carotenoids and the phylogeny of oxygenic phototrophs in sea and fresh water, including cyanobacteria, red algae, brown algae and green algae, is summarized. These phototrophs contain division- or class-specific carotenoids, such as fucoxanthin, peridinin and siphonaxanthin. The distribution of α-carotene and its derivatives, such as lutein, loroxanthin and siphonaxanthin, are limited to divisions of Rhodophyta (macrophytic type, Cryptophyta, Euglenophyta, Chlorarachniophyta and Chlorophyta. In addition, carotenogenesis pathways are discussed based on the chemical structures of carotenoids and known characteristics of carotenogenesis enzymes in other organisms; genes and enzymes for carotenogenesis in algae are not yet known. Most carotenoids bind to membrane-bound pigment-protein complexes, such as reaction center, light-harvesting and cytochrome b6f complexes. Water-soluble peridinin-chlorophyll a-protein (PCP and orange carotenoid protein (OCP are also established. Some functions of carotenoids in photosynthesis are also briefly summarized.

  20. Ottoman Hunting Organization of Silistra Sanjak in The 16th Century

    Directory of Open Access Journals (Sweden)

    Mustafa ALKAN

    2015-12-01

    Full Text Available While hunting in traditional societies, was most commonly practised as a profession, for food, sports or entertainment, it was fully a part of Ottoman State organization as a military exercise or war game. From the first Ottoman rulers, there has been hunting institution in the palace. An organized hunting institution, regular hunting practices and the number of hunted animals had been perceived as the symbols of power of the ruler. Hunting organization was instrumental in identifying the situations of the country and people, inspecting government officials and listening to people’s problems. In this respect, the meaning of hunting ceremony gains great importance. Hunting bird-growing organization in Ottoman Empire palace had been institutionalized since early years. Its provincial administration was created for particular sanjaks. The structure of provincial hunting organization was organized in the form of taşra doğancıları (provincial falconers or hawkers, sayyad (hunters, yavrucu (fledgeling careres, yuvacı (nest carers, kayacı (carer of nest rocks, görenceci (bird observers, tuzakçı (bird catchers. There are records in Ottoman archives about this units concerning their organization, numbers, how they were spread and how the duties were passed from father to son. In this study, in the 16th century provincial Ottoman hunting organization and services in Silistra has been throughly examined, using archive documents.

  1. Will Hunting Wildlife Harm the Ecological Balance of Nature?

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    The Expert Committee of Wild Animal Hunting,an organization under the State Forestry Administration of China,recently approved a group of foreign hunters’applications to shoot wildlife in China. The news has gained much attention across the country. The application was submitted by two domestic travel agencies on behalf of seven foreign hunters,who plan to shoot nine blue sheep and seven Tibetan gazelles in an international hunting ground in west China’s Qinghai Province. Despite the expert committee’s approval,however,the hunters still can’t fire a shot in China until they get an official license from the State Forestry Administration.According to recent news,the administration has declined the application. In China,blue sheep and Tibetan gazelles are ranked as Class 2

  2. Extraterritorial hunting expeditions to intense fire scars by feral cats

    Science.gov (United States)

    McGregor, Hugh W.; Legge, Sarah; Jones, Menna E.; Johnson, Christopher N.

    2016-03-01

    Feral cats are normally territorial in Australia’s tropical savannahs, and hunt intensively with home-ranges only two to three kilometres across. Here we report that they also undertake expeditions of up to 12.5 km from their home ranges to hunt for short periods over recently burned areas. Cats are especially likely to travel to areas burned at high intensity, probably in response to vulnerability of prey soon after such fires. The movements of journeying cats are highly directed to specific destinations. We argue that the effect of this behaviour is to increase the aggregate impact of cats on vulnerable prey. This has profound implications for conservation, considering the ubiquity of feral cats and global trends of intensified fire regimes.

  3. Turtle hunting and tombstone opening. public generosity as costly signaling.

    Science.gov (United States)

    Smith; Bird

    2000-07-01

    Costly signaling theory (CST) offers an explanation of generosity and collective action that contrasts sharply with explanations based on conditional reciprocity. This makes it particularly relevant to situations involving widespread unconditional provisioning of collective goods. We provide a preliminary application of CST to ethnographic data on turtle hunting and public feasting among the Meriam of Torres Strait, Australia. Turtle hunting appears to meet the key conditions specified in CST: it is (1) an honest signal of underlying abilities such as strength, risk-taking, skill, and leadership; (2) costly in ways not subject to reciprocation; (3) an effective means of broadcasting signals, since the collective good (a feast) attracts a large audience; and (4) seems to provide benefits to signalers (turtle hunters) as well as recipients (audience). We conclude with some suggestions as to the broader implications of this research, and the costly signaling paradigm in general, for understanding collective action and generosity in human social groups.

  4. Academic training: The Hunt for the Higgs Particle

    CERN Multimedia

    2007-01-01

    2006-2007 ACADEMIC TRAINING PROGRAMME LECTURE SERIES 27, 28 February, 1st March, from 11:00 to 12:00 Main Auditorium, bldg. 500 The Hunt for the Higgs Particle F. ZWIRNER, University and INFN, Padova, Italy With the advent of the LHC, the hunt for the Higgs boson is entering its crucial phase. These three lectures will review: the Higgs mechanism; its implementation in the minimal Standard Model; possible alternatives with and without elementary scalar fields; the presently available information on electroweak gauge symmetry breaking and the Higgs particle; the properties of the Higgs boson(s) in the Standard Model and its supersymmetric extensions; the strategies for direct searches at colliders, with emphasis on the LHC, and comments on the possible scenarios that may emerge.

  5. Extraterritorial hunting expeditions to intense fire scars by feral cats.

    Science.gov (United States)

    McGregor, Hugh W; Legge, Sarah; Jones, Menna E; Johnson, Christopher N

    2016-03-02

    Feral cats are normally territorial in Australia's tropical savannahs, and hunt intensively with home-ranges only two to three kilometres across. Here we report that they also undertake expeditions of up to 12.5 km from their home ranges to hunt for short periods over recently burned areas. Cats are especially likely to travel to areas burned at high intensity, probably in response to vulnerability of prey soon after such fires. The movements of journeying cats are highly directed to specific destinations. We argue that the effect of this behaviour is to increase the aggregate impact of cats on vulnerable prey. This has profound implications for conservation, considering the ubiquity of feral cats and global trends of intensified fire regimes.

  6. Hunting and trading bushmeat in the Kilombero Valley, Tanzania

    DEFF Research Database (Denmark)

    Nielsen, Martin Reinhardt; Meilby, Henrik

    2015-01-01

    Bushmeat hunting in the savannah biomes of East Africa is often considered to be subsistence oriented and undertaken as a gap-filler in the lean agricultural season. The price of bushmeat is furthermore often thought uniform regardless of species, but if hunting is commercially oriented and price...... premiums are paid for particular species this needs to be considered. This paper investigates these issues in the Kilombero Valley of Tanzania, based on one year of market data and interviews with 80 hunters, 169 traders and 67 retailers. Motivations were overwhelmingly commercial and the bushmeat trade...... unprofitable. Willingness-to-pay data showed that elephant, buffalo, hippopotamus, puku, bushpig and warthog meat were preferred. Enhanced enforcement may thus drive prices for these species higher, encouraging hunters to seek ways around constraints. Community-based wildlife management and improved firearms...

  7. Hyperspectral imaging of snow algae and green algae from aeroterrestrial habitats.

    Science.gov (United States)

    Holzinger, Andreas; Allen, Michael C; Deheyn, Dimitri D

    2016-09-01

    Snow algae and green algae living in aeroterrestrial habitats are ideal objects to study adaptation to high light irradiation. Here, we used a detailed description of the spectral properties as a proxy for photo-acclimation/protection in snow algae (Chlamydomonas nivalis, Chlainomonas sp. and Chloromonas sp.) and charophyte green algae (Zygnema sp., Zygogonium ericetorum and Klebsormidium crenulatum). The hyperspectral microscopic mapping and imaging technique allowed us to acquire total absorption spectra of these microalgae in the waveband of 400-900nm. Particularly in Chlamydomonas nivalis and Chlainomonas sp., a high absorbance between 400-550nm was observed, due to naturally occurring secondary carotenoids; in Chloromonas sp. and in the charopyhte algae this high absorbance was missing, the latter being close relatives to land plants. To investigate if cellular water loss has an influence on the spectral properties, the cells were plasmolysed in sorbitol or desiccated at ambient air. While in snow algae, these treatments did hardly change the spectral properties, in the charopyhte algae the condensation of the cytoplasm and plastids increased the absorbance in the lower waveband of 400-500nm. These changes might be ecologically relevant and photoprotective, as aeroterrestrial algae are naturally exposed to occasional water limitation, leading to desiccation, which are conditions usually occurring together with higher irradiation.

  8. Interpersonal violence and overweight in adolescents: the HUNT Study

    OpenAIRE

    Stensland, Synne; Thoresen, Siri; Wentzel-Larsen, Tore; Dyb, Grete

    2014-01-01

    Aims:Overweight and obesity in children and adolescents are major public health challenges associated with psychosocial adversity and unfavourable lifestyle. Exposure to interpersonal violence, such as sexual abuse, violence and bullying, could represent precursors, accelerating or sustaining factors. Methods: The Young-HUNT 3 study, 2006–2008, is a population-based, cross-sectional, cohort study of Norwegian youth that includes self-report data on exposure to interpersonal violence; pube...

  9. RAMSAY HUNT SYNDROME A CASE REPORT AND REVIEW OF LITERATURE

    Directory of Open Access Journals (Sweden)

    Balasubramanian Thiagarajan

    2013-01-01

    Full Text Available This is a case report of a rather rare disorder i.e. Ramsay Hunt syndrome. This is caused by Varicella zoster infections involving geniculate ganglion of facial nerve. This syndrome is manifested by the presence of blebs in the external auditory canal, ear ache, and lower motor neurone type of facial paralysis. This patient had excellent recovery following administration of oral steroids and acyclovir.

  10. Tolosa-Hunt Syndrome: A Report of Two Cases

    Directory of Open Access Journals (Sweden)

    Sefer Günaydın

    2015-12-01

    Full Text Available Tolosa-Hunt syndrome (THS is a painful ophthalmoplegia, characterized by cryptogenic granulomatous inflammation of the cavernous sinus and/or superior orbital fissure. Glucocorticoid treatment is used for both diagnostic and therapeutic purposes. According to the Headache classification subcommittee of international headache society criteria, magnetic resonance imaging (MRI or biopsy is necessary for demonstration of the granulomatous inflammation. Here, we present two cases of THS with clinical and MRI findings.

  11. Linking Ethics and Economic Growth: a Comment on Hunt

    Directory of Open Access Journals (Sweden)

    Nicolai J. Foss

    2012-08-01

    Full Text Available Hunt (2012 builds on his work concerning ethics and resource-advantage theory to link personal ethical standards, societal norms, and economic growth but offers few details concerning the precise mechanisms that link ethics and growth. This comment suggests a number of such mechanisms – for example, the influence of prevailing ethical norms on the aggregate elasticity of substitution and, therefore, total factor productivity and growth.

  12. Applicability of age-based hunting regulations for African leopards.

    Directory of Open Access Journals (Sweden)

    Guy Andrew Balme

    Full Text Available In species in which juvenile survival depends strongly on male tenure, excessive trophy hunting can artificially elevate male turnover and increase infanticide, potentially to unsustainable levels. Simulation models show that the likelihood of safe harvests can be improved by restricting offtakes to males old enough to have reared their first cohort of offspring to independence; in the case of African leopards, males were ≥7 years old. Here, we explore the applicability of an age-based approach for regulating trophy hunting of leopards. We conducted a structured survey comprising photographs of known-age leopards to assess the ability of wildlife practitioners to sex and age leopards. We also evaluated the utility of four phenotypic traits for use by trophy hunters to age male leopards in the field. Our logistic regression models showed that male leopard age affected the likelihood of survey respondents identifying the correct sex; notably, males <2 years were typically misidentified as females, while mature males (≥4 years were sexed correctly. Mature male leopards were also more likely to be aged correctly, as were portrait photographs. Aging proficiency was also influenced by the profession of respondents, with hunters recording the lowest scores. A discriminant model including dewlap size, the condition of the ears, and the extent of facial scarring accurately discriminated among male leopard age classes. Model classification rates were considerably higher than the respective scores attained by survey respondents, implying that the aging ability of hunters could theoretically improve with appropriate training. Dewlap size was a particularly reliable indicator of males ≥7 years and a review of online trophy galleries suggested its wider utility as an aging criterion. Our study demonstrated that an age-based hunting approach is practically applicable for leopards. However, implementation would require major reform within the regulatory

  13. Chronic Granulomatous Tolosa-Hunt Syndrome (Case Report

    Directory of Open Access Journals (Sweden)

    Dewa Purwa Samatra

    2016-04-01

    Full Text Available Background: Tolosa-Hunt syndrome is a rare case, characterized by tenderness, persistent around the affected eye and ophthalmoplegia /paresis caused by granulomatous inflammation in the cavernous sinus region, supra orbital or orbital fissure. Although spontaneous remission may occur, even corticosteroid therapy has a very satisfactory effect. However, relapse can occur after remission. We report a case of granulomatous Tolosa-Hunt syndrome in women aged 47 years who suffer from recurrent Tolosa-Hunt syndrome attacks for 4 years on his left eye, there was a significant recovery after receiving steroid therapy. Case:  We report A 47 years old with recurrent pain in the left eye since 4 years, pain episode duration of 1-2 weeks, accompanied by double vision when having long or short distance viewing, and when climbing stairs. The patient left eye was protruded with blurred vision and difficulty in distinguishing green color. Left eye examination vision 1/300, green color discromatopsia, normal funduscopic, ptosis, with paresis eye movement toward the superior, inferior, nasal and temporal. C-reactive protein and erythrocyte sedimentation rate were slightly elevated. ANA test was positive. In visual evoked potential, it showed latency elongation of the left face. Head MRI with contrast showed a isointense protrusion on the left cavernous sinus in axial cuts in T1 and T2. Head MRI T1 with contrast on coronal, axial cuts showed the appearance of convex lesions around the left cavernous sinus that enhanced with contrast. Conclusions: The result was clinically and radiographically diagnosed as Tolosa-Hunt Syndrome (THS. Therefore, 10 mg dexamethasone therapy, 4 times a day for 3 days was lowered to three times on day 4, 2 times on the fifth day and one time at day 6. The patient showed clinical improvement. The patient continued 48 mg oral methylprednisolone therapy up to 3 weeks which then gradually decreased and planned head MRI 3 months later.

  14. Algae production for energy and foddering

    Energy Technology Data Exchange (ETDEWEB)

    Bai, Attila; Jobbagy, Peter; Durko, Emilia [University of Debrecen, Faculty of Applied Economics and Rural Development (UD-FAERD), Centre for Agricultural and Applied Economic Sciences, Debrecen (Hungary)

    2011-09-15

    This study not only presents the results of our own experiments in alga production, but also shows the expected economic results of the various uses of algae (animal feed, direct burning, pelleting, bio-diesel production), the technical characteristics of a new pelleting method based on literature, and also our own recommended alga production technology. In our opinion, the most promising alternative could be the production of alga species with high levels of oil content, which are suitable for utilization as by-products for animal feed and in the production of bio-diesel, as well as for use in waste water management and as a flue gas additive. Based on the data from our laboratory experiments, of the four species we analyzed, Chlorella vulgaris should be considered the most promising species for use in large-scale experiments. Taking expenses into account, our results demonstrate that the use of algae for burning technology purposes results in a significant loss under the current economic conditions; however, the utilization of algae for feeding and bio-diesel purposes - in spite of their innovative nature - is nearing the level needed for competitiveness. By using the alga production technology recommended by us and described in the present study in detail, with an investment of 545 to 727 thousand EUR/ha, this technology should be able to achieve approximately 0-29 thousand EUR/ha net income, depending on size. More favorable values emerge in the case of the 1-ha (larger) size, thanks to the significant savings on fixed costs (depreciation and personnel costs). (orig.)

  15. Algae Biofuel in the Nigerian Energy Context

    Directory of Open Access Journals (Sweden)

    Elegbede Isa

    2016-05-01

    Full Text Available The issue of energy consumption is one of the issues that have significantly become recognized as an important topic of global discourse. Fossil fuels production reportedly experiencing a gradual depletion in the oil-producing nations of the world. Most studies have relatively focused on biofuel development and adoption, however, the awareness of a prospect in the commercial cultivation of algae having potential to create economic boost in Nigeria, inspired this research. This study aims at exploring the potential of the commercialization of a different but commonly found organism, algae, in Nigeria. Here, parameters such as; water quality, light, carbon, average temperature required for the growth of algae, and additional beneficial nutrients found in algae were analysed. A comparative cum qualitative review of analysis was used as the study made use of empirical findings on the work as well as the author’s deductions. The research explored the cultivation of algae with the two major seasonal differences (i.e. rainy and dry in Nigeria as a backdrop. The results indicated that there was no significant difference in the contribution of algae and other sources of biofuels as a necessity for bioenergy in Nigeria. However, for an effective sustainability of this prospect, adequate measures need to be put in place in form of funding, provision of an economically-enabling environment for the cultivation process as well as proper healthcare service in the face of possible health hazard from technological processes. Further studies can seek to expand on the potential of cultivating algae in the Harmattan season.

  16. Cross-jurisdictional management of a trophy-hunted species.

    Science.gov (United States)

    Hochard, Jacob; Finnoff, David

    2017-02-08

    Gray wolves (Canis lupus) are managed for competing uses in the Greater Yellowstone Ecosystem (GYE). Tourism benefits Yellowstone National Park (YNP) visitors while trophy hunting benefits hunters outside of the park. We investigate the policy scope of gray wolf management across jurisdictional boundaries by incorporating three foundations of the behavioral ecology of wolves: refuge-seeking behavior, optimal foraging group size and territoriality. Tradeoffs between and within consumptive and non-consumptive human benefits and wolf population fitness and life history indicators are quantified as a set of elasticities, providing clear implications to resource managers. Our approach highlights that hunting intensity affects the provision of consumptive and non-consumptive human benefits across jurisdictional boundaries and ought to be managed accordingly. We also show that population levels are an incomplete indicator of species fitness, which may depend on how hunting policies impact underlying group ecology. Our findings suggest traditional optimization approaches to wildlife management may lead to suboptimal policy recommendations when the boundaries on the natural system are oversimplified. Highlighting the human element of wildlife management, we show that understanding tourist and hunter responses to wildlife population abundances is critical to balancing provision of consumptive and non-consumptive human uses.

  17. Mathematical Modeling and Analysis of Multirobot Cooperative Hunting Behaviors

    Directory of Open Access Journals (Sweden)

    Yong Song

    2015-01-01

    Full Text Available This paper presents a mathematical model of multirobot cooperative hunting behavior. Multiple robots try to search for and surround a prey. When a robot detects a prey it forms a following team. When another “searching” robot detects the same prey, the robots form a new following team. Until four robots have detected the same prey, the prey disappears from the simulation and the robots return to searching for other prey. If a following team fails to be joined by another robot within a certain time limit the team is disbanded and the robots return to searching state. The mathematical model is formulated by a set of rate equations. The evolution of robot collective hunting behaviors represents the transition between different states of robots. The complex collective hunting behavior emerges through local interaction. The paper presents numerical solutions to normalized versions of the model equations and provides both a steady state and a collaboration ratio analysis. The value of the delay time is shown through mathematical modeling to be a strong factor in the performance of the system as well as the relative numbers of the searching robots and the prey.

  18. Demography, not inheritance, drives phenotypic change in hunted bighorn sheep.

    Science.gov (United States)

    Traill, Lochran W; Schindler, Susanne; Coulson, Tim

    2014-09-09

    Selective harvest, such as trophy hunting, can shift the distribution of a quantitative character such as body size. If the targeted character is heritable, then there will be an evolutionary response to selection, and where the trait is not, then any response will be plastic or demographic. Identifying the relative contributions of these different mechanisms is a major challenge in wildlife conservation. New mathematical approaches can provide insight not previously available. Here we develop a size- and age-based two-sex integral projection model based on individual-based data from a long-term study of hunted bighorn sheep (Ovis canadensis) at Ram Mountain, Canada. We simulate the effect of trophy hunting on body size and find that the inheritance of body mass is weak and that any perceived decline in body mass of the bighorn population is largely attributable to demographic change and environmental factors. To our knowledge, this work provides the first use of two-sex integral projection models to investigate the potential eco-evolutionary consequences of selective harvest.

  19. Faster Treasure Hunt and Better Strongly Universal Exploration Sequences

    CERN Document Server

    Xin, Qin

    2012-01-01

    In this paper, we investigate the explicit deterministic treasure hunt problem in a $n$-vertex network. This problem was firstly introduced by Ta-Shma and Zwick in \\cite{TZ07} [SODA'07]. Note also it is a variant of the well known rendezvous problem in which one of the robot (the treasure) is always stationary. In this paper, we propose an $O(n^{c(1+\\frac{1}{\\lambda})})$-time algorithm for the treasure hunt problem, which significantly improves the currently best known result of running time $O(n^{2c})$ in \\cite{TZ07}, where $c$ is a constant induced from the construction of an universal exploration sequence in \\cite{R05,TZ07}, and $\\lambda \\gg 1$ is an arbitrary large, but fixed, integer constant. The treasure hunt problem also motivates the study of strongly universal exploration sequences. In this paper, we also propose a much better explicit construction for strongly universal exploration sequences compared to the one in \\cite{TZ07}.

  20. Artificial intelligence techniques for monitoring dangerous infections.

    Science.gov (United States)

    Lamma, Evelina; Mello, Paola; Nanetti, Anna; Riguzzi, Fabrizio; Storari, Sergio; Valastro, Gianfranco

    2006-01-01

    The monitoring and detection of nosocomial infections is a very important problem arising in hospitals. A hospital-acquired or nosocomial infection is a disease that develops after admission into the hospital and it is the consequence of a treatment, not necessarily a surgical one, performed by the medical staff. Nosocomial infections are dangerous because they are caused by bacteria which have dangerous (critical) resistance to antibiotics. This problem is very serious all over the world. In Italy, almost 5-8% of the patients admitted into hospitals develop this kind of infection. In order to reduce this figure, policies for controlling infections should be adopted by medical practitioners. In order to support them in this complex task, we have developed a system, called MERCURIO, capable of managing different aspects of the problem. The objectives of this system are the validation of microbiological data and the creation of a real time epidemiological information system. The system is useful for laboratory physicians, because it supports them in the execution of the microbiological analyses; for clinicians, because it supports them in the definition of the prophylaxis, of the most suitable antibi-otic therapy and in monitoring patients' infections; and for epidemiologists, because it allows them to identify outbreaks and to study infection dynamics. In order to achieve these objectives, we have adopted expert system and data mining techniques. We have also integrated a statistical module that monitors the diffusion of nosocomial infections over time in the hospital, and that strictly interacts with the knowledge based module. Data mining techniques have been used for improving the system knowledge base. The knowledge discovery process is not antithetic, but complementary to the one based on manual knowledge elicitation. In order to verify the reliability of the tasks performed by MERCURIO and the usefulness of the knowledge discovery approach, we performed a test

  1. 43 CFR 15.11 - Explosives and dangerous weapons.

    Science.gov (United States)

    2010-10-01

    ... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Explosives and dangerous weapons. 15.11... § 15.11 Explosives and dangerous weapons. No person shall carry, use or possess within the Preserve... other kind of weapon potentially harmful to the reef structure. The use of such weapons from beyond the...

  2. 48 CFR 245.7310-4 - Dangerous property.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 3 2010-10-01 2010-10-01 false Dangerous property. 245..., DEPARTMENT OF DEFENSE CONTRACT MANAGEMENT GOVERNMENT PROPERTY Sale of Surplus Contractor Inventory 245.7310-4 Dangerous property. The following warning shall be included when it cannot be certified that the property...

  3. Dangerousness and risk assessment: the state of the art.

    Science.gov (United States)

    Bauer, Arie; Rosca, Paula; Khawalled, Razak; Gruzniewski, Adrian; Grinshpoon, Alex

    2003-01-01

    Risk or dangerousness is an issue which burdens the minds of all mental health and law enforcement professionals. Researchers have attempted to define its extent and constituent elements and to predict and assess it. Risk assessment is a complex task, influenced by the interaction of many variables, such as previous pattern of violence, biological, sociological and psychological factors, divided into facilitating and inhibiting factors. In our paper we discuss the theoretical concepts linked with dangerousness prediction and assessment, and then review the "first" and "second" generations of literature on dangerousness and risk assessment, including the actuarial instruments. We then present the current trends in the field, concentrating on the correlation between dangerousness and mental disorders, dangerousness analysis and risk management, a wider concept including prevention, treatment and communication of risk. Although great progress has been made in this field, there are still many unresolved issues, among them the development of valid instruments for the assessment of risk.

  4. The generic danger and the idiosyncratic support

    Science.gov (United States)

    Temme, Arnaud; Nijp, Jelmer; van der Meij, Marijn; Samia, Jalal; Masselink, Rens

    2016-04-01

    This contribution argues two main points. First, that generic landscapes used in some modelling studies sometimes have properties or cause simulation results that are unrealistic. Such initially flat or straight-sloped landscapes, sometimes with minor random perturbations, e.g. form the backdrop for ecological simulations of vegetation growth and competition that predict catastrophic shifts. Exploratory results for semi-arid systems suggest that the results based on these generic landscapes are end-members from a distribution of results, rather than an unbiased, typical outcome. Apparently, the desire to avoid idiosyncrasy has unintended consequences. Second, we argue and illustrate that in fact new insights often come from close inspection of idiosyncratic case studies. Our examples from landslide systems, connectivity and soil formation show how a central role for the case study - either in empirical work or to provide model targets - has advanced our understanding. Both points contribute to the conclusion that it is dangerous to forget about annoying, small-scale, idiosyncratic and, indeed, perhaps bad-ass case studies in Earth Sciences.

  5. How Can We Avert Dangerous Climate Change?

    CERN Document Server

    Hansen, J

    2007-01-01

    Recent analyses indicate that the amount of atmospheric CO2 required to cause dangerous climate change is at most 450 ppm, and likely less than that. Reductions of non-CO2 climate forcings can provide only moderate, albeit important, adjustments to the CO2 limit. Realization of how close the planet is to "tipping points" with unacceptable consequences, especially ice sheet disintegration with sea level rise out of humanity's control, has a bright side. It implies an imperative: we must find a way to keep the CO2 amount so low that it will also avert other detrimental effects that had begun to seem inevitable, e.g., ocean acidification, loss of most alpine glaciers and thus the water supply for millions of people, and shifting of climatic zones with consequent extermination of species. Here I outline from a scientific perspective actions needed to achieve low limits on CO2 and global warming. These changes are technically feasible and have ancillary benefits. Achievement of needed changes requires overcoming t...

  6. Euthanasia--definition, dangers and alternatives.

    Science.gov (United States)

    Saunders, C

    1994-03-01

    There is as yet (1992) no law specifically allowing euthanasia, the active intervention to end a patient's life. The discussion has so far been restricted to such action as taking place at a patient's request, but evidence from the Netherlands appears to show that the move to involuntary euthanasia is a real danger. Palliative medicine offers appropriate treatment for relief and support where limits are set on interventions that would no longer be in a patient's best interests. It is possible to relieve distress by using the increasing knowledge in this field. It is important to distinguish this from euthanasia and the term "passive euthanasia" is confusing and unfortunate. Those with extensive experience in the treatment of advanced cancer have much to share with practitioners in other specialties, not least in the possible achievements of both patient and family at the end of life. Society has the responsibility for including them in its concern to the end of life and for supporting those who find it difficult to believe in any meaning in their existence.

  7. Steam vaporizers: A danger for paediatric burns.

    Science.gov (United States)

    Lonie, Sarah; Baker, Paul; Teixeira, Rodrigo

    2016-12-01

    Steam vaporizers are used to humidify air in dry environments. They are marketed to moisten children's airway secretions and thus to help relieve symptoms associated with upper respiratory tract infections. Unfortunately the steam emitted from the unit can also pose a significant risk of burns to children. Our study aimed to ascertain patterns of injury and treatment outcomes from steam burns resulting from these devices. Potential preventative measures are discussed. Children who had sustained vaporizer scald burns were identified at the outpatient burns clinic over a 10-month period (November 2014-August 2015). Medical records were reviewed retrospectively and data collected on pattern of injury, management and outcomes. Ten children were treated for vaporizer steam burns over the study period. The mean age was 1.6 years and 8 (80%) patients were male. Operative intervention was undergone in 5 (50%) cases; four acutely and one as a secondary reconstructive procedure. Hand burns accounted for 8 (80%) of cases. Steam vaporizers can cause significant burns in the paediatric population. Toddlers were most at risk, frequently sustaining hand burns that underwent skin grafting. Greater public awareness of the danger is indicated and measures to prevent such injuries should be addressed by appropriate authorities. Copyright © 2016 Elsevier Ltd and ISBI. All rights reserved.

  8. Can Asteroid Airbursts Cause Dangerous Tsunami?.

    Energy Technology Data Exchange (ETDEWEB)

    Boslough, Mark B. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2015-10-01

    I have performed a series of high-resolution hydrocode simulations to generate “source functions” for tsunami simulations as part of a proof-of-principle effort to determine whether or not the downward momentum from an asteroid airburst can couple energy into a dangerous tsunami in deep water. My new CTH simulations show enhanced momentum multiplication relative to a nuclear explosion of the same yield. Extensive sensitivity and convergence analyses demonstrate that results are robust and repeatable for simulations with sufficiently high resolution using adaptive mesh refinement. I have provided surface overpressure and wind velocity fields to tsunami modelers to use as time-dependent boundary conditions and to test the hypothesis that this mechanism can enhance the strength of the resulting shallow-water wave. The enhanced momentum result suggests that coupling from an over-water plume-forming airburst could be a more efficient tsunami source mechanism than a collapsing impact cavity or direct air blast alone, but not necessarily due to the originally-proposed mechanism. This result has significant implications for asteroid impact risk assessment and airburst-generated tsunami will be the focus of a NASA-sponsored workshop at the Ames Research Center next summer, with follow-on funding expected.

  9. Biological toxicity of lanthanide elements on algae.

    Science.gov (United States)

    Tai, Peidong; Zhao, Qing; Su, Dan; Li, Peijun; Stagnitti, Frank

    2010-08-01

    The biological toxicity of lanthanides on marine monocellular algae was investigated. The specific objective of this research was to establish the relationship between the abundance in the seawater of lanthanides and their biological toxicities on marine monocellular algae. The results showed that all single lanthanides had similar toxic effects on Skeletonema costatum. High concentrations of lanthanides (29.04+/-0.61 micromol L(-1)) resulted in 50% reduction in growth of algae compared to the controls (0 micromol L(-1)) after 96 h (96 h-EC50). The biological toxicity of 13 lanthanides on marine monocellular algae was unrelated with the abundance of different lanthanide elements in nature, and the "Harkins rule" was not appropriate for the lanthanides. A mixed solution that contained equivalent concentrations of each lanthanide element had the same inhibition effect on algae cells as each individual lanthanide element at the same total concentration. This phenomenon is unique compared to the groups of other elements in the periodic table. Hence, we speculate that the monocellular organisms might not be able to sufficiently differentiate between the almost chemically identical lanthanide elements.

  10. Oil from algae; salvation from peak oil?

    Science.gov (United States)

    Rhodes, Christopher J

    2009-01-01

    A review is presented of the use of algae principally to produce biodiesel fuel, as a replacement for conventional fuel derived from petroleum. The imperative for such a strategy is that cheap supplies of crude oil will begin to wane within a decade and land-based crops cannot provide more than a small amount of the fuel the world currently uses, even if food production were allowed to be severely compromised. For comparison, if one tonne of biodiesel might be produced say, from rape-seed per hectare, that same area of land might ideally yield 100 tonnes of biodiesel grown from algae. Placed into perspective, the entire world annual petroleum demand which is now provided for by 31 billion barrels of crude oil might instead be met from algae grown on an area equivalent to 4% of that of the United States. As an additional benefit, in contrast to growing crops it is not necessary to use arable land, since pond-systems might be placed anywhere, even in deserts, and since algae grow well on saline water or wastewaters, no additional burden is imposed on freshwater-a significant advantage, as water shortages threaten. Algae offer the further promise that they might provide future food supplies, beyond what can be offered by land-based agriculture to a rising global population.

  11. Criteria and indicators of sustainable hunting – the Austrian assessment approach

    Directory of Open Access Journals (Sweden)

    Lexer, W.

    2005-12-01

    Full Text Available Concepts and assessment tools for sustainable natural resource management have been developed in, amongst others, forestry, agriculture, fishery and tourism, but not for hunting or wildlife management. We applied a broad participatory stakeholder approach for the development of criteria and indicators of sustainable hunting in Austria. Based on international and national obligations and provisions, the concept is operational by defining ecological, economic and socio-cultural principles, criteria and sub-criteria with indicators and performance scales. The assessment set enables hunters to assess the degree of sustainability of their own individual practice of hunting in a self-reliant way. Its main function is to serve as a decision-supporting and awareness-raising instrument on hunting to identify deficiencies in sustainability, provide guidance for more sustainable future hunting practices and monitor effectiveness of management actions. The concept allows adaptation to specific regional conditions and different national hunting systems and application on regional and supra-regional scales.

  12. Lead exposure in bald eagles from big game hunting, the continental implications and successful mitigation efforts.

    Science.gov (United States)

    Bedrosian, Bryan; Craighead, Derek; Crandall, Ross

    2012-01-01

    Studies suggest hunter discarded viscera of big game animals (i.e., offal) is a source of lead available to scavengers. We investigated the incidence of lead exposure in bald eagles in Wyoming during the big game hunting season, the influx of eagles into our study area during the hunt, the geographic origins of eagles exposed to lead, and the efficacy of using non-lead rifle ammunition to reduce lead in eagles. We tested 81 blood samples from bald eagles before, during and after the big game hunting seasons in 2005-2010, excluding 2008, and found eagles had significantly higher lead levels during the hunt. We found 24% of eagles tested had levels indicating at least clinical exposure (>60 ug/dL) during the hunt while no birds did during the non-hunting seasons. We performed driving surveys from 2009-2010 to measure eagle abundance and found evidence to suggest that eagles are attracted to the study area during the hunt. We fitted 10 eagles with satellite transmitters captured during the hunt and all migrated south after the cessation of the hunt. One returned to our study area while the remaining nine traveled north to summer/breed in Canada. The following fall, 80% returned to our study area for the hunting season, indicating that offal provides a seasonal attractant for eagles. We fitted three local breeding eagles with satellite transmitters and none left their breeding territories to feed on offal during the hunt, indicating that lead ingestion may be affecting migrants to a greater degree. During the 2009 and 2010 hunting seasons we provided non-lead rifle ammunition to local hunters and recorded that 24% and 31% of successful hunters used non-lead ammunition, respectively. We found the use of non-lead ammunition significantly reduced lead exposure in eagles, suggesting this is a viable solution to reduce lead exposure in eagles.

  13. Lead exposure in bald eagles from big game hunting, the continental implications and successful mitigation efforts.

    Directory of Open Access Journals (Sweden)

    Bryan Bedrosian

    Full Text Available Studies suggest hunter discarded viscera of big game animals (i.e., offal is a source of lead available to scavengers. We investigated the incidence of lead exposure in bald eagles in Wyoming during the big game hunting season, the influx of eagles into our study area during the hunt, the geographic origins of eagles exposed to lead, and the efficacy of using non-lead rifle ammunition to reduce lead in eagles. We tested 81 blood samples from bald eagles before, during and after the big game hunting seasons in 2005-2010, excluding 2008, and found eagles had significantly higher lead levels during the hunt. We found 24% of eagles tested had levels indicating at least clinical exposure (>60 ug/dL during the hunt while no birds did during the non-hunting seasons. We performed driving surveys from 2009-2010 to measure eagle abundance and found evidence to suggest that eagles are attracted to the study area during the hunt. We fitted 10 eagles with satellite transmitters captured during the hunt and all migrated south after the cessation of the hunt. One returned to our study area while the remaining nine traveled north to summer/breed in Canada. The following fall, 80% returned to our study area for the hunting season, indicating that offal provides a seasonal attractant for eagles. We fitted three local breeding eagles with satellite transmitters and none left their breeding territories to feed on offal during the hunt, indicating that lead ingestion may be affecting migrants to a greater degree. During the 2009 and 2010 hunting seasons we provided non-lead rifle ammunition to local hunters and recorded that 24% and 31% of successful hunters used non-lead ammunition, respectively. We found the use of non-lead ammunition significantly reduced lead exposure in eagles, suggesting this is a viable solution to reduce lead exposure in eagles.

  14. Application of the anthropogenic allee effect model to trophy hunting as a conservation tool.

    Science.gov (United States)

    Harris, Richard B; Cooney, Rosie; Leader-Williams, Nigel

    2013-10-01

    Trophy hunting can provide economic incentives to conserve wild species, but it can also involve risk when rare species are hunted. The anthropogenic Allee effect (AAE) is a conceptual model that seeks to explain how rarity may spread the seeds of further endangerment. The AAE model has increasingly been invoked in the context of trophy hunting, increasing concerns that such hunting may undermine rather than enhance conservation efforts. We question the appropriateness of uncritically applying the AAE model to trophy hunting for 4 reasons. First, the AAE assumes an open-access resource, which is a poor characterization of most trophy-hunting programs and obscures the potential for state, communal, or private-property use rights to generate positive incentives for conservation. Second, study results that show the price of hunting increases as the rarity of the animal increases are insufficient to indicate the presence of AAE. Third, AAE ignores the existence of biological and behavioral factors operating in most trophy-hunting contexts that tend to regulate the effect of hunting. We argue that site-specific data, rather than aggregated hunting statistics, are required to demonstrate that patterns of unsustainable exploitation can be well explained by an AAE model. Instead, we suggest that conservation managers seeking to investigate and identify constraints that limit the potential conservation role of trophy hunting, should focus on the critical governance characteristics that shape the potential conservation role of trophy hunting, such as corruption, insecure property rights, and inadequate sharing of benefits with local people. © 2013 Society for Conservation Biology.

  15. Lead Exposure in Bald Eagles from Big Game Hunting, the Continental Implications and Successful Mitigation Efforts

    Science.gov (United States)

    Bedrosian, Bryan; Craighead, Derek; Crandall, Ross

    2012-01-01

    Studies suggest hunter discarded viscera of big game animals (i.e., offal) is a source of lead available to scavengers. We investigated the incidence of lead exposure in bald eagles in Wyoming during the big game hunting season, the influx of eagles into our study area during the hunt, the geographic origins of eagles exposed to lead, and the efficacy of using non-lead rifle ammunition to reduce lead in eagles. We tested 81 blood samples from bald eagles before, during and after the big game hunting seasons in 2005–2010, excluding 2008, and found eagles had significantly higher lead levels during the hunt. We found 24% of eagles tested had levels indicating at least clinical exposure (>60 ug/dL) during the hunt while no birds did during the non-hunting seasons. We performed driving surveys from 2009–2010 to measure eagle abundance and found evidence to suggest that eagles are attracted to the study area during the hunt. We fitted 10 eagles with satellite transmitters captured during the hunt and all migrated south after the cessation of the hunt. One returned to our study area while the remaining nine traveled north to summer/breed in Canada. The following fall, 80% returned to our study area for the hunting season, indicating that offal provides a seasonal attractant for eagles. We fitted three local breeding eagles with satellite transmitters and none left their breeding territories to feed on offal during the hunt, indicating that lead ingestion may be affecting migrants to a greater degree. During the 2009 and 2010 hunting seasons we provided non-lead rifle ammunition to local hunters and recorded that 24% and 31% of successful hunters used non-lead ammunition, respectively. We found the use of non-lead ammunition significantly reduced lead exposure in eagles, suggesting this is a viable solution to reduce lead exposure in eagles. PMID:23284837

  16. Provisioning of game meat to rural communities as a benefit of sport hunting in Zambia.

    Science.gov (United States)

    White, Paula A; Belant, Jerrold L

    2015-01-01

    Sport hunting has reportedly multiple benefits to economies and local communities; however, few of these benefits have been quantified. As part of their lease agreements with the Zambia Wildlife Authority, sport hunting operators in Zambia are required to provide annually to local communities free of charge i.e., provision a percentage of the meat obtained through sport hunting. We characterized provisioning of game meat to rural communities by the sport hunting industry in Zambia for three game management areas (GMAs) during 2004-2011. Rural communities located within GMAs where sport hunting occurred received on average > 6,000 kgs per GMA of fresh game meat annually from hunting operators. To assess hunting industry compliance, we also compared the amount of meat expected as per the lease agreements versus observed amounts of meat provisioned from three GMAs during 2007-2009. In seven of eight annual comparisons of these GMAs, provisioning of meat exceeded what was required in the lease agreements. Provisioning occurred throughout the hunting season and peaked during the end of the dry season (September-October) coincident with when rural Zambians are most likely to encounter food shortages. We extrapolated our results across all GMAs and estimated 129,771 kgs of fresh game meat provisioned annually by the sport hunting industry to rural communities in Zambia at an approximate value for the meat alone of >US$600,000 exclusive of distribution costs. During the hunting moratorium (2013-2014), this supply of meat has halted, likely adversely affecting rural communities previously reliant on this food source. Proposed alternatives to sport hunting should consider protein provisioning in addition to other benefits (e.g., employment, community pledges, anti-poaching funds) that rural Zambian communities receive from the sport hunting industry.

  17. Provisioning of game meat to rural communities as a benefit of sport hunting in Zambia.

    Directory of Open Access Journals (Sweden)

    Paula A White

    Full Text Available Sport hunting has reportedly multiple benefits to economies and local communities; however, few of these benefits have been quantified. As part of their lease agreements with the Zambia Wildlife Authority, sport hunting operators in Zambia are required to provide annually to local communities free of charge i.e., provision a percentage of the meat obtained through sport hunting. We characterized provisioning of game meat to rural communities by the sport hunting industry in Zambia for three game management areas (GMAs during 2004-2011. Rural communities located within GMAs where sport hunting occurred received on average > 6,000 kgs per GMA of fresh game meat annually from hunting operators. To assess hunting industry compliance, we also compared the amount of meat expected as per the lease agreements versus observed amounts of meat provisioned from three GMAs during 2007-2009. In seven of eight annual comparisons of these GMAs, provisioning of meat exceeded what was required in the lease agreements. Provisioning occurred throughout the hunting season and peaked during the end of the dry season (September-October coincident with when rural Zambians are most likely to encounter food shortages. We extrapolated our results across all GMAs and estimated 129,771 kgs of fresh game meat provisioned annually by the sport hunting industry to rural communities in Zambia at an approximate value for the meat alone of >US$600,000 exclusive of distribution costs. During the hunting moratorium (2013-2014, this supply of meat has halted, likely adversely affecting rural communities previously reliant on this food source. Proposed alternatives to sport hunting should consider protein provisioning in addition to other benefits (e.g., employment, community pledges, anti-poaching funds that rural Zambian communities receive from the sport hunting industry.

  18. Sustainability and Long Term-Tenure: Lion Trophy Hunting in Tanzania

    OpenAIRE

    2016-01-01

    It is argued that trophy hunting of large, charismatic mammal species can have considerable conservation benefits but only if undertaken sustainably. Social-ecological theory suggests such sustainability only results from developing governance systems that balance financial and biological requirements. Here we use lion (Panthera leo) trophy hunting data from Tanzania to investigate how resource ownership patterns influence hunting revenue and offtake levels. Tanzania contains up to half of th...

  19. Were human babies used as bait in crocodile hunts in colonial Sri Lanka?

    Directory of Open Access Journals (Sweden)

    Anslem de Silva

    2015-01-01

    Full Text Available Use of live animals as bait is not an uncommon practice in hunting worldwide.  However, some curious accounts of the use of human babies as bait to lure crocodiles in sport hunting exist on the island of Sri Lanka, where sport hunting was common during the British colonial period.  Herein we compile the available records, review other records of the practice, and discuss the likelihood of the exercise actually having taken place. 

  20. Algae a promising alternative for biofuel

    Directory of Open Access Journals (Sweden)

    M.H. Sayadi

    2011-08-01

    Full Text Available Research on renewable and environmentally friendly fuel is growing rapidly and many scientists and governments are interested to grow it fast due to limitation of conventional fuel sources and their harmful effects on the environment. Biofuels are not only the best and reliably available fuels attained from renewable sources which are environment friendly. Besdies biofuels are abundantly available in all the locations easily accessible and highly sustainable. In the present review, the authors present a brief highlight of challenges that necessitates to be covered in order to make both, micro as well as macro algae a viable option to produce renewable biofuels. It is interesting to note that algae are varied, pervasive, and productive and also having less impact with plants as a food for human and animals. Further research is required to a high quantity of product innovation because most dedicated algae are faced uneconomically high costs.