Resonance Cassie-Wenzel wetting transition for horizontally vibrated drops deposited on a rough surface.

The transition between the Cassie and Wenzel wetting regimes has been observed under horizontal vibrations of a water drop placed on the rough micrometrically scaled polymer pattern. The observed transition has a distinct resonance character. The resonance frequencies as established experimentally coincide with the calculated eigenfrequencies of capillary-gravity standing waves on the drop surface.

Cassie-Wenzel wetting transition in vibrating drops deposited on rough surfaces: is the dynamic Cassie-Wenzel wetting transition a 2D or 1D affair?

The transition between the Cassie and Wenzel wetting regimes has been observed under vertical vibration of a water drop placed on a rough micrometrically scaled polymer pattern. The transition takes place under the constant force per unit length of the triple contact line, not under constant pressure. A study of the vibrating drop deposited on the rough surface supplied valuable information concerning the Cassie-Wenzel wetting transition.

Environmental scanning electron microscopy study of the fine structure of the triple line and cassie-wenzel wetting transition for sessile drops deposited on rough polymer substrates.

The wetting of rough honeycomb micrometrically scaled polymer substrates was studied. A very strong dependence of the apparent contact angle on the drop volume has been established experimentally. The environmental scanning electron microscopy study of the fine structure of the triple line is reported first.

Why do pigeon feathers repel water? Hydrophobicity of pennae, Cassie-Baxter wetting hypothesis and Cassie-Wenzel capillarity-induced wetting transition.

Wetting of pigeon feathers has been studied. It was demonstrated that the Cassie-Baxter wetting regime is inherent for pigeon pennae. The water drop, supported by network formed by barbs and barbules, sits partially on air pockets.

Wetting properties of the multiscaled nanostructured polymer and metallic superhydrophobic surfaces.

A superhydrophobic surface is produced from industrial grade polymer materials. The surface comprises partly disordered triple-scaled arrays of polyvinylidene fluoride (PVDF) globules. An inherently superhydrophobic metallic surface is produced with polymer template.

Droplet behavior on flat and textured surfaces: co-occurrence of Deegan outward flow with Marangoni solute instability.

It is demonstrated experimentally that the solution droplet behavior is governed by the co-occurrence of outward hydrodynamic and surface tension (solute Marangoni) induced flows. Potassium ferrocyanide allows the effective visualization of the processes taking place in the droplet. Wetting properties of the substrate govern the shape evolution of the evaporated droplet.

Finger pulse waveform length in the detection of concealed information.

An attempt was made to assess the efficiency of the finger pulse waveform length (FPWL), in detection of concealed information. For this purpose, two mock-theft experiments were designed. In the first, 40 guilty participants were examined while electrodermal, respiration and finger pulse volume were recorded.

Low back pain incident episodes: a community-based study.

Background Context: The available evidence regarding low back pain (LBP) incident episodes is not consistent. Such knowledge can add information for the potential contribution of preventive programs.

Purpose: a) To evaluate annual incident episodes of LBP among the general population.

Patterning in rapidly evaporated polymer solutions: formation of annular structures under evaporation of the poor solvent.

Patterning in the intensively evaporated polymer solutions based on polystyrene and poor solvent (acetone) was investigated. SEM and AFM studies demonstrated that annular elements of the surface topography are formed in this case, in contrast to the honeycomb patterns obtained under the evaporation of the good solvent (chloroform). The authors suggest that the theory of viscous dewetting developed by de Gennes explains the phenomenon satisfactorily.

Self-assembly in evaporated polymer solutions: influence of the solution concentration.

Amorphous polymers were dissolved in chlorinated organic solvents and deposited on thin horizontal substrates. The solutions with various concentrations of polymers were deposited and evaporated under ambient conditions in a slow air current. Self-assembled oriented mesoscopically scaled patterns were observed.

Aggression and anxiety in rapists and child molesters.

This study expands the empirical and theoretical understanding of the distinction between those who perpetrate sexual assaults against children (child molesters) and those who perpetrate them against adults (rapists). Two questionnaires were completed by 88 incarcerated, male sexual offenders (45 child molesters and 43 rapists): the Spielberger state trait anxiety inventory and the Buss-Durkee hostility inventory. It was found that the rapists' level of aggression was significantly higher than that of the child molesters.

Mesoscopic patterning in evaporated polymer solutions: new experimental data and physical mechanisms.

Mesoscopically ordered patterns were obtained when polymer solutions were applied to tilted substrates and evaporated immediately under ambient conditions in a slow air current. The patterns were studied with optical, scanning electron, and atomic force microscopy. Shadowgraph visualization of the patterning was carried out, and visualization of the flow with an ink tracer was performed.

Space-frequency model of ultrawide-band interactions in free-electron lasers.

The principle of operation of intense radiation devices such as microwave tubes, free-electron lasers, and masers, is based on a distributed interaction between an electron beam and electromagnetic radiation. Some of the effects emerging during the interaction involve a continuum of frequencies in their broadband spectrum. We developed a three-dimensional, space-frequency theory for the analysis and simulation of radiation excitation and propagation in electron devices and free-electron lasers operating in an ultrawide range of frequencies.

Investigations of the structure of water using mid-IR fiberoptic evanescent wave spectroscopy.

Liquid water is one of the most studied but still one of the least understood substances. The absorption spectra of water in the mid-IR were measured from -10 and up to 90 degrees C using fiberoptic evanescent wave spectroscopy. The changes in the spectrum and the existence of an isosbestic point during the ice-liquid phase transition were studied.

ACTH induces TIMP-1 expression and inhibits collagenase in adrenal cortex cells.

To identify genes that are induced by corticotropin (ACTH) in adrenal cortex cells, we carried out a differential hybridization screening of adrenal cortex cDNA libraries. Some of the clones we identified represented tissue inhibitor of metalloproteinase 1 (TIMP-1) mRNA. We examined ACTH dependence of the expression of TIMP-1 in vitro in cultured bovine adrenocortical cells, and in ACTH-treated rats.

Appropriate presentation of skin conductance accuracy with the Guilty Knowledge Test.

It was suggested that, when the Guilty Knowledge Test uses two repetitions, these should be combined showing the contribution of the second repetition to the accuracy of the first. Also recommended were effect size statistics in addition to accuracy rates.

Evanescent-wave infrared spectroscopy with flattened fibers as sensing elements.

Fiber-optic evanescent-wave spectroscopy (FEWS) is a novel method for measuring the absorption spectra of samples in contact with a segment of an optical fiber that serves as a sensing element. We used a cylindrical IR-transmitting AgClBr fiber whose central section, of length L, was flattened to a thickness d. This section was used as the FEWS sensing element.

Novel mutations responsible for autosomal recessive multisystem pseudohypoaldosteronism and sequence variants in epithelial sodium channel alpha-, beta-, and gamma-subunit genes.

Multisystem pseudohypoaldosteronism (PHA), is a syndrome of unresponsiveness to aldosterone with autosomal recessive inheritance. Previously we showed that mutations in the epithelial sodium channel (ENaC) alpha-, beta-, and gamma-subunits are responsible for PHA. In this study we examined four independent probands with multisystem PHA, three of whom were born to consanguineous parents.

Generalized theory and simulation of spontaneous and super-radiant emissions in electron devices and free-electron lasers.

A unified formulation of spontaneous (shot-noise) and super-radiant emissions in electron devices is presented. We consider an electron beam with an arbitrary temporal current modulation propagating through the interaction region of the electronic device. The total electromagnetic field is presented as a stochastic process and expanded in terms of transverse eigenmodes of the medium (free space or waveguide), in which the field is excited and propagates.

Design of Ligands That Stabilize Cu(I) and Shift the Reduction Potential of the Cu(II/I) Couple Cathodically in Aqueous Solutions.

The ligands R(2)NCH(2)CH(2)N(R)CH(2)CH(2)N(R)CH(2)CH=CH(2), where R = H, CH(3), were synthesized. The stability constants of their complexes with Cu(II) and Cu(I) in aqueous solutions were determined. Both ligands stabilize Cu(I) in aqueous solutions, though the reduction potentials of both (CuL(i)())(2+/+) couples are shifted cathodically in comparison to the Cu(2+/+)(aq) couple.

Antigen of erythroblast (Ag-Eb): a membrane protein that may be an erythroid-specific transferrin receptor.

Only a limited number of erythroid cell surface markers have been described in the literature. Ag-Eb was originally described as an erythroid-specific cell surface glycoprotein and could be used as an erythroid differentiation marker, but more recent studies suggest this localization is more widespread. From the data summarized in this review, it is hypothesized that Ag-Eb is a member of a subset of the transferrin receptor family and that it functions together with these receptors in the uptake and metabolism of iron, particularly at histo-hematic barriers.

Correlation of applied kinesiology muscle testing findings with serum immunoglobulin levels for food allergies.

The pilot study attempted to determine whether subjective muscle testing employed by Applied Kinesiology practitioners, prospectively determine those individuals with specific hyperallergenic responses. Seventeen subjects were found positive on Applied Kinesiology (A.K.

Protective nucleosome centering at splice sites as suggested by sequence-directed mapping of the nucleosomes.

The characteristic AA(TT) sequence pattern of the nucleosome DNA derived earlier is used for prediction of nucleosome positions around splice junctions of eukaryotic genes. Two large datasets (2000 sequences each) were collected consisting of DNA segments with the exon/intron and intron/exon splice junctions, from various eukaryotic species. Positions of predicted nucleosomes near the junction sites were calculated.

Mechanisms of Reactions of (*)NO with Complexes with Metal-Carbon sigma-Bonds and with Aliphatic Radicals.

The competition kinetics between metal complexes and (*)NO for aliphatic radicals is a convenient technique for determining the rate constants of the reactions of (*)NO with aliphatic radicals. Thus, the rate constants of (*)CH(3) and (*)CH(2)OH with (*)NO were determined to be (3.4 +/- 1.