The study of sexual reproductive behavior supported by ultrastructural evidence is important in rotifers to describe differences among potential cryptic species. In this research, the morphology of the rotifer Brachionus bidentatus is described at the ultrastructural level, using electronic microscopy, together with a brief description and discussion of its sexual reproductive behavior. The cha...

The object of this paper to derive certain sucient condi-tions for close-to-convexity of certain analytic functions dened on theunit disk  

Choanotaenia atopa (Cestoda: Dilepididae) is described (host: domestic cat from the vicinity of Manhattan, Kansas); its natural host is presumed to be a rodent. Choanotaenia atopa is morphologically similar to cestodes of 6 species, all from rodents, formerly placed in the genus Rodentotaenia Matevosian, 1953, and subsequently removed to the genera Choanotaenia Railliet, 1986, or Monopylidium F...

A new species of the genus Microtendipes Kieffer, 1915, Microtendipes zhejiangensissp.n., is described, and its morphological description and illustrations are given. A catalogue of the genus in Oriental Region is provided and a key to the males of Microtendipes in the Oriental Region is given.

Koho Akimaru, Yasuhiko Iino, Seiichi Matsunobu, Shuyou Hayama, Yoshio ledokoro, Kiichirou Uchiyama, Masafumi Hioki, Shinji Matsushima, Akirou Terashi, Tasuku Shoji, Tsuyoshi Kobayashi, Michiko Yokoyama, Nobutaka Yamada4 and Kouji Matsumoto The Second Department of Surgery, Nippon Medical School First Hospital The Second Department of Internal Medicine, Nippon Medical School First Hospital Depar...

BACKGROUND Carbapenem-resistant Acinetobacter baumannii (CRAb) is a major source of nosocomial infections in Spain associated with the production of OXA-58-like or OXA-24/40-like β-lactamase enzymes. We analysed the plasmids carrying the bla(OXA-24/40)-like gene in CRAb isolates obtained a decade apart. METHODS The presence of β-lactamases was screened for by PCR (metallo-β-lactamases, carbap...

OBJECTIVES This report presents trends in cesarean rates for first births and repeat cesarean rates for low-risk women, in relation to the Healthy People 2010 (HP 2010) objectives. Data for the U.S. showing trends by maternal age and race and Hispanic origin are presented. METHODS Cesarean rates were computed based on the information reported on birth certificates. RESULTS With a decrease b...

Electrodynamic space tethers offer the opportunity for in-space “propellantless” propulsion around planets with a magnetic field and an ionosphere. This propulsion is accomplished by converting the magnetic force on the tether current into propulsive or drag thrust to either increase or decrease the orbital energy of the spacecraft system. To validate electrodynamic-tether thrusting, we must be...

The polychaete Notaulax yamasuisp. n. (Sabellidae) is described from Okinawa and Ogasawara, south Japan, where it was found living embedded in a dead skeleton of the coral Porites sp. The new species is characterized by the presence of a pigmented sub-distal swelling on the tips of the crown radioles, a unique feature among species of the genus. Besides, its collar chaetae have an L-shape orien...

In many studies of human movement, calculations of mechanical energy and physiological energy costs of exercise (Aleshinsky, 1986; Bhambhani & Singh, 1985; Cavagna, Thys & Zamboni, 1976; Robertson & Winter, 1980; Pierrynowski, Winter & Norman, 1980; Saito, Ohkuwa, Ikegami & Miyamura, 1983; Sakurai & Miyashita, 1985; Williams & Cavanagh, 1983; Williams, 1985; Winter, Quanbury & Reimer, 1978; Zur...