Catheter-associated urinary tract infection (CAUTI) is the most common postoperative infection associated with gynaecologic procedures, and results in increased risks to patients and costs for hospitals. Currently, there is great variation in chemoprophylaxis used for prevention of postoperative CAUTI. The objective of this paper was to systematically review the efficacy of chemoprophylaxis for...

BACKGROUND The detection of Pneumocystis jirovecii DNA in respiratory specimen from individuals who do not have signs or symptoms of pneumonia has been defined as colonization. The role of P. jirovecii colonization in the development or progression of various lung diseases has been reported, but little information about P. jirovecii colonization in patients is available in the People's Republic...

Mandelic acid has been used in medicine for many years as a urinary antiseptic. Methenamine mandelate (Mandelamine®, Parke-Davis, Morris Plains, NJ) has the urinary antiseptic action of both methenamine and mandelic acid. In concentrations of 35g to 50g/100L of urine, it inhibits Staphylococcus aureus, bacillus proteus, escher ichia col i , and aerobacter aerogenes. Chemically, mandelic acid ha...

Two data sets were collected on single crystals of hexamethylenetetramine (urotropin) using a fourcircle diffractometer with Cu K~ radiation and an imaging-plate two-dimensional detector with Mo K~ source using the rotation method. Both data sets extend to the same limit of sin 0/2 = 0.62A -~, corresponding to a resolution of 0.81 ,&. Different processing protocols were employed for the two set...

We report the seed/catalyst-free vertical growth of high-density electrodeposited ZnO nanostructures on a single-layer graphene. The absence of hexamethylenetetramine (HMTA) and heat has resulted in the formation of nanoflake-like ZnO structure. The results show that HMTA and heat are needed to promote the formation of hexagonal ZnO nanostructures. The applied current density plays important ro...

Y(2)O(3) nanoparticles with strong red luminescence (quantum yield about 25%) was synthesized via simple hydroxylation of yttrium nitrate using hexamethylenetetramine as an additive; the red luminescence is emitted from oxygen-related defects of pure Y(2)O(3) nanoparticles, and is tunable by altering the additive.

The asymmetric unit of the title compound, 2C(6)H(12)N(4)·C(8)H(12)O(4), contains one half-mol-ecule of e,e-trans-cyclo-hexane-1,4-dicarb-oxy-lic acid (the complete molecule being generated by inversion symmetry) and one mol-ecule of hexa-methyl-ene-tetra-mine (HMTA), which are connected by O-H⋯N hydrogen bonds. This forms isolated trimers that pack in a herringbone fashion.

The presence of members of the aerogenes (Aerobacter) group of bacteria offers considerable interference in the positive identification of the members of the colon (Escherichia) group in waters. Many attempts have been made by research workers to find selective media by which the members of the above-mentioned groups might be differentiated. One of the most recent selective media for such a dif...

BACKGROUND The majority of men find the production of a semen sample an embarrassing and stressful experience. Consequently, the availability of an over-the-counter home sperm test, which would reliably and accurately allow the patient to obtain an assessment of fertility potential at their convenience, would be a major benefit. Our objective was to develop and evaluate a home sperm test that p...

When 2 visual stimuli are presented one after another in different locations, they are often perceived as one, but moving object. Feedback from area human motion complex hMT/V5+ to V1 has been hypothesized to play an important role in this illusory perception of motion. We measured event-related responses to illusory motion stimuli of varying apparent motion (AM) content and retinal location us...