Despite the ongoing need for shark conservation and management, prevailing negative sentiments marginalize these animals and legitimize permissive exploitation. These negative attitudes arise from an instinctive, yet exaggerated fear, which is validated and reinforced by disproportionate and sensationalistic news coverage of shark 'attacks' and by highlighting shark-on-human violence in popular...

The function of the heterocercal tail in sharks has long been debated in the literature. Previous kinematic data have supported the classical theory which proposes that the beating of the heterocercal caudal fin during steady horizontal locomotion pushes posteroventrally on the water, generating a reactive force directed anterodorsally and causing rotation around the center of mass. An alternat...

OF THE THESIS IN VITRO EFFECT OF SHARK CARTILAGE ON HUMAN LEUKOCYTE FUNCTION by Aline Comelissen Florida International University, 2001 Miami, Florida Professor Sylvia L. Smith, Major Professor Previous in vitro studies have shown that shark cartilage extracts stimulate human leukocytes to release significant levels of TNFa, a cytokine typical of a Thl immune response. The purpose of this study...

We present the new block cipher SHARK. This cipher combines highly non-linear substitution boxes and maximum distance separable error correcting codes (MDS-codes) to guarantee a good di usion. The cipher is resistant against di erential and linear cryptanalysis after a small number of rounds. The structure of SHARK is such that a fast software implementation is possible, both for the encryption...

The function, regulation, and molecular structure of the cardiac Na(+)/Ca(2+) exchangers (NCXs) vary significantly among vertebrates. We previously reported that beta-adrenergic suppression of amphibian cardiac NCX1.1 is associated with specific molecular motifs. Here we investigated the bimodal, cAMP-dependent regulation of spiny dogfish shark (Squalus acanthias) cardiac NCX, exploring the eff...

BACKGROUND Shark meat is used as sacrificial food in Gyeongsangbuk-do, and is a major source of dietary mercury. This study aimed to evaluate the effects of shark meat intake or the ritual of Jesa on blood mercury levels within workers living in Gyeongsangbuk-do. METHODS This study was conducted from September 2016 to October 2016 in two cities of Gyeongsangbuk-do. To compare the differences ...

At the Ninth Session of the Indian Ocean Tuna Commission in 2005, the commission adopted the resolution 05/05 , arising from the work of the Compliance Committee, concerning the conservation of sharks caught in association with fisheries managed by IOTC. It is stipulated that Contracting Parties and Cooperating non-Contracting Parties (CPCs) shall annually report their data for shark catches, r...

The shape of shark teeth varies among species, but traditional testing protocols have revealed no predictive relationship between shark tooth morphology and performance. We developed a dynamic testing device to quantify cutting performance of teeth. We mimicked head-shaking behaviour in feeding large sharks by attaching teeth to the blade of a reciprocating power saw fixed in a custom-built fra...

Whale sharks attract large numbers of tourists, divers and snorkelers each year to South Ari Atoll in the Republic of Maldives. Yet without information regarding the use and economic extent of the attraction, it is difficult to prioritize conservation or implement effective management plans. We used empirical recreational data and generalized mixed statistical models to conduct the first econom...

Tiger Shark is a parallel file system for IBM’s AIX operating system. It is designed to support interactive multimedia, particularly large-scale systems such as interactive television (ITV). Tiger Shark scales across the entire RS/ 6000 product line, from small desktop machines to the SP2 parallel supercomputer. Tiger Shark’s primary features are support for continuoustime data, scalability, hi...