(1) A study revealed that the percentage of active sperm in semen 30 seconds after ejaculation was 10.3% when a nonoxynol 9 latex condom was used as opposed to 55.9% in a nonspermicidal condom.
(2) Nulliparous women were also more likely to discontinue the condom because of pregnancy, as were non-Protestants and the Australian-born.
(3) Informal support and knowing one's HIV status are strong predictors of condom use 1 year later.
(4) Black males with low intentions to use condoms reported significantly more negative attitudes about the use of condoms (eg, using condoms is disgusting) and reacted with more intense anger when their partners asked about previous sexual contacts, when a partner refused sex without a condom, or when they perceived condoms as interfering with foreplay and sexual pleasure.
(5) It focuses on the major areas of concern: HIV prevalence among drug injectors; sexual risk behaviour; the potential for heterosexual transmission; condom use; sexual risk and women; pregnancy; male homosexual activity and drug use; the effect of drugs on sexual behaviour and prostitution.
(6) Prick tests performed on 16 different condom brands showed that 4 brands caused positive reactions in 52-67% of patients.
(7) As part of an effort to better educate patients about using condoms, a survey was done to assess the sexual practices, attitudes toward acquired immunodeficiency syndrome (AIDS) and condom use by patients who visit an urban family practice center.
(8) However, it also indicated a need for further improvement in specific areas of education, such as the value of obtaining more information about sexual partners, more awareness of the importance of multiple-partner relationships in the spread of AIDS, and more emphasis on the important role of condoms in preventing AIDS virus transmission.
(9) The results indicated that AIDS education was associated with increases in knowledge of AIDS risks and in acceptability of condoms in the initial analysis.
(10) 53 women (76%) had started using contraception before the age of 20; 47% had used more than 1 type of contraception, 46% had used oral contraceptives only, 23% had used the condom, and 5% had used nothing.
(11) The tests demonstrated that mineral oil damaged the latex condoms within 60 seconds.
(12) More than 50% of condom requests are made using these confidential forms.
(13) The extent of leakage varied over two orders of magnitude from condom to condom within each brand.
(14) Their condom use was examined with three types of partners: exclusive, nonexclusive primary, and nonexclusive secondary.
(15) IUDs, oral contraceptives and, in some cases, condoms have been prescribed.
(16) Stepwise logistic regression confirmed that group discussion was the factor most significantly associated with condom use.
(17) Children are taught to use condoms there,” Pokrovsky said, indicating that was hardly imaginable in modern Russia where the Orthodox church is growing increasingly influential.
(18) Aliquots of the fluids in the outer and inner condoms were grown in culture.
(19) A Health Ministry spokesman answers that the campaign has, in fact, stressed that use of condoms for "safe sex" does not provide complete protection but, since the only 100% sure protection, celibacy, is completely impractical, even partial protection is better than none.
(20) There appears to be a direct connection between this observation and the two main messages of the campaign as the employment of condoms increased tenfold during the period 1986-1988 end contact investigations revealed a decrease in the number of unknown sexual partners.
Impermeable
Definition:
(a.) Not permeable; not permitting passage, as of a fluid. through its substance; impervious; impenetrable; as, India rubber is impermeable to water and to air.
Example Sentences:
(1) On the other hand, changing pH on only one side by addition of an impermeant buffer fails to induce any change in n. At the single-channel level, pH had an effect both on the unitary conductance, doubling it in going from pH 4.5 to 8.2, as well as on the fraction of time the channels stay open, F(v).
(2) EAI can penetrate a membrane, whereas IAI is membrane impermeant.
(3) Both the internal and external solutions were prepared with impermeant anions.
(4) Replacement of Cl-o with other impermeant anions, such as gluconate and methylsulphate, had a similar action on contractile activity as for Ise-replacement.
(5) When sulfhydryl groups present at the cell surface were blocked with cell-impermeant sulfhydryl reagent, the initial phase of disulfide cleavage was inhibited, indicating that cleavage began at the cell surface.
(6) To explain the opposite effects of GTP in the absence and presence of oxalate, it is proposed that GTP activates a transmembrane conveyance of Ca2+ between oxalate-permeable and -impermeable compartments.
(7) Measurement of (140)La uptake by the living skin shows that lanthanum moves across the external surface of the skin readily, into and out of a compartment that has a limited capacity and is bounded on its internal side by a barrier impermeable to lanthanum.
(8) When permeant anions in the bath (Cl-) were replaced with relatively impermeant anions (gluconate, MOPS, propionate, or Hepes), the Po vs. voltage relationship was shifted by approximately -35 mV.
(9) Currents through both the voltage-activated potassium channels, IK,V, and the calcium-activated potassium channels, IK,Ca, can be blocked by the membrane-impermeant K channel blocker tetraethylammonium (TEA).
(10) The outcome is a belief that the Earth is being slowly strangled by a gaudy coat of impermeable plastic waste that collects in great floating islands in the world's oceans; clogs up canals and rivers; and is swallowed by animals, birds and sea creatures.
(11) Local hypoxia due to a diffusion block by the impermeable pericapillary cuffs, partially due to a reduction of capillaries in the superficial layers.
(12) The connective hyperpolarizes in the propionate saline, whereas the abdominal region undergoes the transient depolarization that is expected when a permeant anion (Cl) is replaced with an impermeant one (propionate).
(13) In forest, removal of olfactory substances from the human skin, by vigorous washing and application of petroleum jelly, or by wearing impermeable clothing, greatly reduced the numbers of flies attracted.
(14) By the use of double-chamber tissue culture flasks, with the 2 cell populations separated by a cell impermeable membrane, it was found that T-T interaction does not require cell contact and is thus mediated by factor(s).
(15) This discrepancy could be ascribed to impermeability, as E. coli cells with modified permeability show greater sensitivity to minosaminomycin.
(16) The perinephric membrane in the Lepidoptera is impermeable to the dyes.
(17) The relatively membrane-impermeant pyridoxal phosphate labels all proteins of the intact myelin except basic protein.
(18) Monobromobimane and dibromobimane are effective on intact cells while red cell membranes may be impermeable to the positively charged monobromotrimethylammoniobimane, the latter being effective only on lysed cells.
(19) This failure was shown to be due to the impermeability of mycobacteria to these drugs by use of "membrane-active" agents along with the antibiotics in growth inhibition studies.
(20) Chloride dependence was assessed by replacing chloride with the impermeant anion gluconate, or by addition of the anion transport blocker 4,4'-diisothiocyanatostilbene-2,2'-disulfonic acid (DIDS).