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Results 551 - 600 of 681
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Young T J - - 1992
165 college students completed a survey containing a measure of misconceptions about human aggression and attitudinal items on the death penalty from a 1985 Gallup report. Analysis did not provide strong support for the hypothesis that subjects with relatively high numbers of misconceptions about human aggression are more likely than ...
Fasenko G M - - 1992
Embryos of eggs from Single Comb White Leghorn hens were analyzed to determine whether duration of egg storage significantly affects embryonic development prior to incubation. Eggs were gathered over a period of 5 days from 25-wk-old hens that were naturally inseminated and housed in floor pens. Within 1 h of ...
Chaves F - - 1992
Venom from newborn Bothrops asper snakes has higher lethal, hemorrhagic, edema-forming, proteolytic and defibrinating activities than venom from adult B. asper specimens. Electrophoretic analysis confirmed the variation between these venoms. Intramuscular injection of 100 micrograms of venom from newborn specimens in mice induced defibrination, together with moderate increments of serum ...
Goelst K - - 1992
Neonatal lambs failed to respond with an increase in body temperature to i.v. injection of both endotoxin (0.4 microgram/kg), a Gram-negative bacterial pyrogen, and the cell walls of Staphylococcus aureus (1 x 10(9), a Gram-positive bacterial pyrogen. However, the fall in serum iron concentration that normally accompanies injection of both ...
Andrews J C - - 1992
The ability of domestic cat or leopard cat spermatozoa to penetrate zonae pellucidae (ZP) of salt-stored, domestic cat oocytes was examined as an assay for sperm capacitation. Ovarian oocytes were recovered after ovariectomy and matured in vitro for 18-36 h. Following removal of cumulus cells, the oocytes were used fresh, ...
Tsai C L - - 1992
Previous studies on osteoarthritic changes induced by intraarticular injections of estradiol benzoate (EB) suggest estrogen as a risk factor in the development of knee osteoarthritis (OA). The present study observed the anti-arthritic effects of tamoxifen (TMX). Oophorectomized rabbits were subjected to intraarticular injections of vehicle control, EB, TMX, or EB/TMX ...
Daly J M - - 1992
The purpose of this investigation was to determine the site utilized by nurses for administering Diphtheria and Tetanus Toxoids and Pertussis (DPT) injections to infants under 7 months of age. Twenty-six of the 28 agencies identified in a metropolitan area as administering DPT injections chose to participate in the study. ...
Morgan J B - - 1991
The objective of this investigation was to determine the effect of calcium chloride (CaCl2) injection on Warner-Bratzler shear force (WBS), sensory panel ratings, and collagen traits of mature cow beef. Within 30 min of exsanguination, subprimals (top round, TR; top sirloin, TS; strip loin, SL) from alternate sides of the ...
Mumcuoglu K Y - - 1991
Fourteen pediculicides currently available in Israel were evaluated for their killing effect on the eggs, nymphs and adults from a laboratory-grown colony of body lice (Pediculus humanus humanus). The efficacy of all pediculicides was determined after a single treatment. The exposure time of the lice to the preparations was according ...
Balog J M - - 1991
The objective of the present study was to determine whether indomethacin, an inhibitor of prostaglandin synthesis, could improve shell quality in birds laying a high incidence (greater than 15%) of soft-shelled (SS) and shell-less (SL) eggs and in birds laying exclusively hard-shelled (HS) eggs. Treatments consisted of two injection types, ...
Mohammed H O - - 1991
An indexing system for hygiene variables associated with egg production was developed by use of data collected from chicken flocks in southern California. The data were analyzed by factor and regression analysis. On the basis of our findings, hygiene index in relation to egg production consists of ventilation system, cooling ...
Tummon I S - - 1991
The utility of in vitro fertilization (IVF) for refractory infertility associated with endometriosis was studied by reviewing the 6-year experience with IVF and pregnancy follow-up at University Hospital, London, Ontario. Two hundred forty cycles were begun in 124 couples in whom endometriosis was the sole identified cause of infertility. In ...
Sakamoto M K - - 1991
Fourteen- and 15-day mouse embryos treated with triamcinolone on day 11 of gestation were examined for the presence of variant rugae. Nontreated mouse embryos served as controls. Variant rugae found were classified into five types. All five types of variations (bifurcation, division, supernumerary, shortness and cross) were observed in triamcinolone-treated ...
Aye R W - - 1991
Enzymatic debridement of the pleural cavity for retained hemothorax or empyema is a frequently overlooked option. Thirteen of fourteen patients (93%) with retained pleural collections underwent successful enzymatic debridement and tube drainage with purified streptokinase injections. The average increase in chest tube output following streptokinase injections was 158%. No significant ...
Sharma V - - 1991
Fifty-nine patients underwent 74 peritoneal oocyte and sperm transfer procedures. Forty-nine had previously failed treatment with inseminated frozen donor sperm and 10 had unexplained infertility. All procedures were carried out under ultrasound direction on an outpatient basis without general anesthetic by the transabdominal or vaginal route. Eighteen (24%) procedures resulted ...
Tournaye H - - 1991
The banked sperm of 5 of 13 Hodgkin patients was thawed for assisted reproduction. The post-thaw sperm characteristics were extremely impaired. Nevertheless, in 80% of all trials fertilization in vitro was obtained and conceptus could be transferred. All spouses became pregnant and seven healthy infants were born. One could recommend ...
Hayes D K - - 1991
Field-collected and laboratory-reared gypsy moth eggs were exposed to microgravity, cosmic radiation, sub-freezing temperatures, unusual vibrations, and other extraterrestrial phenomena while they were sealed for 6 days, in January, in a Get-Away-Special (GAS) canister in the open bay of a NASA earth-orbiting spacecraft, the Columbia. Insects were not exposed to ...
Lefebvre F - - 1990
The physical and emotional condition of the mother delivering a premature or low birth weight infant may be quite different than that of the mother of a healthy term infant when initiating breast-feeding. Despite this difference, incidence and duration of lactation among mothers of pre-term or low birth weight infants ...
Tyler C R - - 1990
This report describes the dynamics of oocyte growth during vitellogenesis in a population of virgin female rainbow trout. Indices of ovarian development increased dramatically during the period of study: the gonadosomatic index (GSI) increased over 50-fold, reaching a peak of 20 just before ovulation; the mean oocyte diameter increased from ...
Ostrovska K - - 1990
Ascogregarina saraviae n. sp. (Apicomplexa: Lecudinidae) is described from wild-caught Lutzomyia lichyi (Diptera: Psychodidae) females. Gametocysts adhered to the hemocoel side of the genital accessory gland walls and oocysts were injected into their lumina. Sporulated oocysts were ellipsoidal, 12.4 x 5.8 (11.6-13.1 x 5.6-5.9) micrometers, contained eight sporozoites and a ...
Clark B J - - 1990
The effects of microsurgical reopening of the neural tube were examined in chick embryos of Stages 12-18. The roof plate of the thoracic neural tube was incised for a length equivalent to 7 somites. The site of incision was studied histologically and by SEM and TEM at intervals up to ...
Rubio-Póo C - - 1990
The anticoagulant and estrogenic effects of hexolame, N-(3-hydroxy-1,3,5(10)-estratrien-17 beta-yl)-6-hydroxyhexylamine, are described. A single subcutaneous injection of hexolame in adult and infant male mice produced dose-dependent increases in blood clotting time which could be observed even after 2 days. In ovariectomized mice, hexolame produced vaginal cornification (estrogenic response). The data suggested ...
Burton H - - 1990
Infant macaques recover tactile abilities better than older animals after somatosensory cortical lesions. To investigate the neural basis of this phenomenon, we ablated the hand representation in primary somatosensory cortex (SI) of infant and juvenile Macaca mulatta and recorded in ipsilateral second somatosensory cortex (SII) a year later. We also ...
Jonville A P - - 1990
A one month old child inadvertently received an intravenous bolus injection of 50 mg of lidocaine instead of contrast iodine. The clinical picture comprised collapse, respiratory arrest, convulsions and coma. The calculated maximum level of lidocaine was 5.39 mg/l. The recovery was complete. The toxicity of lidocaine is discussed.
Moody S A - - 1990
A detailed fate map of all the progeny derived from each of the blastomeres of the 4- and 8-cell stage South African clawed frog (Xenopus laevis) embryo is presented. Each "identified" blastomere that results from stereotypic cleavages has a characteristic set of progeny that distinguishes it from the other blastomeres ...
Chadee D D - - 1989
The diel pattern of oviposition of Aedes albopictus derived from Singapore was studied in the laboratory by recording the performance of individual females at two-hour intervals. Oviposition was almost exclusively diurnal, about 98% of eggs being laid during the full photophase, and the rest during the 30-minute evening 'twilight' and ...
Roldan E R - - 1989
The role of the zona pellucida in the specificity of fertilization was studied by cross-inseminations between Syrian (Golden) and Chinese hamster gametes. Cumulus-enclosed eggs from both Syrian and Chinese hamsters were placed together in one dish and inseminated with spermatozoa from either one or the other species. Fertilization always took ...
Nephew K P - - 1989
Twenty-five crossbred ewes were utilized to examine the timing of embryonic migration relative to maternal recognition of pregnancy. These ewes also were utilized to examine whether ovine embryos synthesized estradiol-17 beta in association with embryonic elongation and intrauterine migration. Embryos were flushed on d 11 through 15 from hemiovariectomized ewes. ...
Phillips D M - - 1989
We have examined the ultrastructural changes that take place during spermiogenesis in the rhea. Spermatozoa are characterized by a curved head and a midpiece. A thin rod extends from the anterior tip of the spermatozoon through the center of the nucleus. A 3-mu-long distal centriole occupies the entire midpiece. The ...
Sloan G M - - 1989
Intralesional corticosteroid injections were performed in 31 hemangiomas in 30 infants aged 1 to 10 months at first injection. One to five injections were given, spaced 6 weeks apart. Lesions were located throughout the head and neck region, except one that was on the buttock. A mixture of betamethasone acetate ...
Hong S K - - 1989
To elucidate the early sequential morphogenetic progress of exencephaly and myeloschisis, rat embryos whose mothers had been treated with hypervitaminosis A were studied at 1-day interval from gestation day 10.5 to 15.5. In exposed animals sequential change was found in both exencephaly and myeloschisis as the embryos grew up. The ...
Heyner S - - 1989
In vitro fertilization and embryo transfer (IVF-ET) programs use ultrasound extensively for monitoring the growth of ovarian follicles and, subsequently, for confirming the presence of a fetal sac. There have been few reports of the effects of ultrasound on ovulation rates in mammals, and we report here that following exposure ...
Sluder G - - 1989
The mature egg inherits a centrosome from the second meiotic spindle, and the sperm introduces a second centrosome at fertilization. Since only one of these centrosomes survives to be used in development, specific mechanisms must exist to control centrosome inheritance. To investigate how centrosome inheritance is controlled we used starfish ...
DeStefano F - - 1989
As part of an epidemiologic study of the health status of a randomly selected group of Vietnam veterans, we measured the semen characteristics of 324 Vietnam veterans and compared them with a similar group of 247 veterans who did not serve in Vietnam. The participation rate was 81% in both ...
Rzasa J - - 1989
The interrelationship between prostaglandins (PG) and vasotocin (AVT) in the oviposition of the domestic hen was investigated. Single or combined injections of indomethacin (IND), an inhibitor of PG synthesis, and AVT gave delay or induction of oviposition. Injection (i.m.) of IND (5 mg/kg) 5 h before oviposition resulted in 15.1 ...
Waite D J - - 1988
In this paper we have examined the influence of MHC (major histocompatibility complex) on neonatal tolerance to Mlsa (minor lymphocyte stimulating). By employing a novel approach we have shown that tolerance to Mlsa is restricted by shared MHC determinants. Thus, neonatal Mlsb mice, injected at birth with spleen cells from ...
Mann J R - - 1988
A mature motile mouse spermatozoon was microinjected under the zona pellucida of mouse eggs. Twenty-five percent of eggs were fertilized, and 54% of these developed to normal fetuses or to term after transfer to pseudopregnant recipients. These results provide a quantitative estimate of the minimum proportion of spermatozoa in a ...
Generoso W M - - 1988
In an earlier study (Generoso et al., 1987), it was observed that the mutagen, ethylene oxide (EtO), produced remarkable increases in the incidence of developmental abnormalities and death of fetuses when early zygotic stages were exposed. This is a major finding in experimental induction of embryopathy, implicating genetic damage to ...
Berndtson W E - - 1988
The 12- to 24-month-old Holstein bulls were electroejaculated twice on each of 3 days per week throughout the study. After a 2-week stabilization period and subsequent 2-week pre-treatment period, 7 bulls were given 50 i.u. oxytocin via the jugular vein 10 min before each first ejaculate for 10 weeks. The ...
Ikenishi K - - 1988
In an effort to define the cause of the developmental arrest of offspring from a certain Xenopus female (designated as No. 65), we have examined eggs and embryos from the female both cytologically and biochemically. Light and electron microscopic observations revealed that all of the blastomeres from embryos of female ...
Sharpe K L - - 1988
In most cyclic females, prostaglandin F(2 alpha) (PGF(2 alpha)) triggers a uterine motility response resembling that of oxytocin (OT). To determine if PGF(2 alpha) is a uterokinetic substance in the cycling mare, uterine motility was measured by intrauterine balloon technique in 12 conscious, normally cyclic mares. After 60 min of ...
Smeets W J - - 1987
Injections of horseradish peroxidase into the medial pallium of the spiny dogfish, Squalus acanthias, retrogradely labeled cells in the superficial portion of the dorsal pallium, the medial pallium and the septal area of the telencephalon, and in the posterior tubercle and posterior lateral thalamic nucleus of the diencephalon. Except for ...
Lenoir A A - - 1987
Fifty infants, 2 to 6 months of age, were vaccinated with Haemophilus influenzae type b capsular polysaccharide covalently linked to an outer membrane protein from Neisseria meningitidis group B. Subjects were given two injections and were randomly assigned to receive the injections separated by 1 or 2 months. Each dose ...
Slott V L - - 1987
The aldehyde acrolein is embryotoxic in vivo and in vitro. Since acrolein is reactive towards thiols, glutathione was evaluated for its protective effects against the in vitro embryotoxicity of acrolein. Day 10 rat embryos were cultured in the presence of acrolein and glutathione, either concurrently or sequentially, and evaluated for ...
Takahashi S - - 1987
Long-term retention of 133Ba in the trachea from intratracheally administered BaSO4 particles was determined by both serial sacrifice and external scanning methods up to 6 months after injection. The amount of 133Ba retained 1 week after injection in the caudal region of the trachea, where the tip of the cannula ...
Lessman C A - - 1987
Germinal vesicle migration (GVM) as evidenced by the appearance of the germinal vesicle at the animal pole surface was induced by nocadazole and demecolcine (colcemid). Nocodazole significantly lowered the progesterone ED50 for germinal vesicle dissolution (GVD). Both demecolcine and nocodazole enhanced centrifugation-induced GVM (i.e., lowered ooplasmic viscoelasticity) after 6-h incubation, ...
Hoffman D J - - 1987
Known reproductive problems, including congenital malformations and poor hatching success, exist for the state endangered Forster's tern (Sterna forsteri) in Green Bay, Wisconsin. Twenty Forster's tern eggs were collected from separate nests at a natural colony with documented reproductive problems, situated at Green Bay, Lake Michigan, and an inland colony ...
Andolz P - - 1987
A modified swim-up procedure for the selection of motile and morphologically normal spermatozoa is described. Applied to abnormal (astheno and asthenoterato) semen samples, the recovery figures are comparable to those obtained by other authors in normal samples. The elimination of seminal plasma from the beginning of the procedure avoids contact ...
Sirois J - - 1987
The outcome of 23 collections and reinsertions of conceptuses on Days 10.5-13.5, 4 transfers of Day-10.5, and 13 transfers of Day-6.5 embryos (ovulation = Day 0) was monitored in 30 mares. Blood samples were taken before and after each procedure to measure plasma 15-keto-13,14-dihydroprostaglandin F-2 alpha (PGFM), and then daily ...
Matsunaga K - - 1987
The effects of light, agitation, and salinity on the hatching pattern of Schistosoma haematobium eggs were examined. Whereas all three factors influenced the hatching pattern, only salinity affected the hatching rate. Eggs began to hatch 5 min after dilution and reached a peak 10-15 min after dilution when urination, dilution ...
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