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Apparatus for Studying the Effects of Compressive and Tensile Bending Strains on Bones
No full textAn apparatus for applying compressive and tensile loads on bones having a frame with a work surface and a stepper motor. The stepper motor is operably connected to a rotational force to linear force converter which is in turn connected to an articulating arm for applying force to a first pair of pads. A second pair of pads is mounted to the work surface such that a bone may be placed across the second pair of pads such that either end of the bone is supported by the second pair of pads and such that the activation of the stepper motor causes the upper pair of pads to exert compressive bending strain on the lateral surface of the bone and such that the lower pair of pads exert tensile bending strain on the medial surface of the bone. A method of modifying hard tissue morphology is also described
Agrypnus dadarensis Akhter, Drumont, Rizvi & Ahmed, 2012, sp. n.
No full text<i>Agrypnus dadarensis</i> sp. n. <p>(Figs: 1 & 2)</p> <p> <b>Material examined. Holotype male,</b> Pakistan; Kheybar Pakhton Khoa Province, Dadar, 10. vii. 2004, leg. Zubair (NHMUK).</p> <p> <b>Measurement.</b> (Holotype) Length 11.00 mm; width 5.00 mm.</p> <p> <b>Coloration.</b> Reddish-black, legs and antennae blackish-brown, covered with dense vestiture.</p> <p> <b>Head.</b> Small, rhomboidal, concave; frons dilated anteriorly, clypeus with anterior margin rounded and deflexed laterally, deep punctures with dense vestiture; antennae exceeding beyond the mid of pronotum, basal antennomere robust, 2nd and 3rd antennomeres smaller than others, 2nd antennomere broader and slightly longer than 3rd antennomere, apically subtruncate, 3rd antennomere narrower than 2nd antennomere, apically rounded, last antennomere elongate, slightly deflexed apically.</p> <p> <b>Thorax.</b> Pronotum slightly broader than long, sides entire, thoroughly convex on disc, gently slopes at sides, fine punctation, with dense vestiture, hind angles emerginated, apices subrounded; prosternum deeply punctured with dense vestiture; propleurae with grooved for reception of anterior tarsi; scutellum shield shaped, covered with dense, recumbent vestiture; elytra with basal margin broader than base of pronotum, widest at middle, narrower apically, strial margin of 6 and 7 row deeply punctate, interstriae convex, impunctate.</p> <p> <b>Male genitalia.</b> (Fig: 2) Aedeagus with median lobe longer than parameres, narrow, tubular with rounded apex; parameres elongate, dilated at base, angulate beyond the middle; two median struts lying under the base of parameres.</p> <p> <b>Female.</b> Unknown</p> <p> <b>Etymology.</b> This species is named for the type locality.</p> <p> <b>Diagnosis.</b> The new species most closely resembles <i>A. piger</i> (Candèze) in the pronotum being broader than long, propleurae with grooves for reception of anterior tarsi, antennae extended beyond the middle of pronotum, aedeagus (Fig: 7) with median lobe much narrower towards apex, acuminate, apices of parameres angulate laterally, basal plate entirely broad, but it can easily separated by having rhomboidal head in shape, emarginated hind angles of pronotum and metasternum without grooves for accommodating the anterior tarsi, aedeagus with median lobe tubular, apex rounded, apices of parameres straight, sides of basal plate rounded, base truncate with distinct angles.</p>Published as part of <i>Akhter, Muhammad Atique, Drumont, Alain, Rizvi, Syed Anser & Ahmed, Zubair, 2012, Contribution to the knowledge of Agrypninae (Coleoptera: Elateridae) with description of new species and new records from Pakistan, pp. 40-54 in Zootaxa 3223</i> on page 42, DOI: <a href="http://zenodo.org/record/280288">10.5281/zenodo.280288</a>
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