PubMed Journals Articles About "Morgan Properties" RSS

11:16 EDT 18th September 2018 | BioPortfolio

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Showing "Morgan Properties" PubMed Articles 1–25 of 10,000+

Thomas Hunt Morgan and the invisible gene: the right tool for the job.

The paper analyzes the early theory building process of Thomas Hunt Morgan (1866-1945) from the 1910s to the 1930s and the introduction of the invisible gene as a main explanatory unit of heredity. Morgan's work marks the transition between two different styles of thought. In the early 1900s, he shifted from an embryological study of the development of the organism to a study of the mechanism of genetic inheritance and gene action. According to his contemporaries as well as to historiography, Morgan separat...

"Other minds than ours": a controversial discussion on the limits and possibilities of comparative psychology in the light of C. Lloyd Morgan's work.

C. Lloyd Morgan is mostly known for Morgan's canon (An introduction to comparative psychology, Walter Scott, Limited, London, 1894), still a popular and frequently quoted principle in comparative psychology and ethology. There has been a fair amount of debate on the canon's interpretation, function, and value regarding the research on animal minds, usually referring to it as an isolated principle. In this paper we rather shed light on Morgan's overall scientific program and his vision for comparative psycho...

Campbell de Morgan Spots (Cherry Angiomas) Show Endothelial Proliferation.

Campbell de Morgan spots (also known as adult hemangiomas, cherry angiomas, or senile angiomas) show clinical and histopathological features that make them distinct. Despite this, they are not included as benign vascular tumors in the current classification by the International Society for Vascular Anomalies (ISSVA). In the current study, we investigated the proliferation rate (Ki67) of the endothelia of 23 cases of Campbell de Morgan spots, as well as the immunoexpression of Wilms tumor protein 1 (WT1) by ...

Testing the intermittent upwelling hypothesis: Reply.

We evaluated the Intermittent Upwelling Hypothesis (IUH) in Shanks and Morgan (Shanks and Morgan 2018), henceforth S&M. We presented five expectations, which must be true if the hypothesis is correct. We tested each of these expectations against available published results and, as part of this analysis, we reanalyzed data from Broitman et al. (Broitman et al. 2008). We concluded that available data do not support any of the five expectations and, hence, the IUH was not supported. Menge and Menge (this iss...

Commentary on: Nakhaeizadeh S, Morgan RM, Rando C, Dror IE. Cascading bias of initial exposure to information at the crime scene to the subsequent evaluation of skeletal remains. J Forensic Sci 2017;63(2):403-11.

Improved thermomechanical and electrical properties of reduced graphene oxide reinforced polyaniline - dodecylbenzenesulfonic acid/divinylbenzene nanocomposites.

Various efforts are going on to improve the electrical properties of carbon fiber reinforced polymer (CFRP) composites. Conducting polymer is one the promising material to achieve the desired electrical properties of CFRP composites without compromising the mechanical properties as a lighting sticking material.

Comparative study on the photoluminescence properties of monoclinic and cubic erbium oxide.

As a heavy rare earth oxide, erbium oxide (ErO) has many attractive properties. Monoclinic ErO has useful properties not found in stable cubic ErO, such as unique optical properties and high radiation damage tolerance. In this study, pure cubic and mixed phase of cubic and monoclinic ErO coatings were prepared. Photoluminescence properties of these coatings were characterized by a confocal micro-Raman spectrometer equipped with 325, 473, 514, 532, 633 nm lasers, and the influence of microstructure on the ...

Enhanced photoluminescence properties of a carbon dot system through surface interaction with polymeric nanoparticles.

Carbon dot systems are highly surface sensitive fluorescent nanomaterials. In the presence of specific molecules or ions, the fluorescence properties can be strongly influenced. Often their fluorescent properties are activated or strongly enhanced through passivation agents such as polymer coatings. While several passivating polymers have been directly attached to the carbon dot systems, the interaction of carbon dot systems with the polymer surface of colloids has not been investigated as a way to activate...

Gas Sensing Properties of p-Co₃O₄/n-TiO₂ Nanotube Heterostructures.

In this paper, we fabricated p-Co₃O₄/n-TiO₂ heterostructures and investigated their gas sensing properties. The structural and morphological characterization were performed by scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy analysis (XPS). The electrical properties of the heterostructure were studied within the temperature range from 293 K to 423 K. Changes in electrical properties and sensing behavior against reducing and oxidizing gases were attribut...

Enhanced Thermoelectric Properties of Double-Filled CoSb via High-Pressure Regulating.

It has been discussed for a long time that synthetic pressure can effectively optimize thermoelectric properties. The beneficial effect of synthesis pressures on thermoelectric properties has been discussed for a long time. In this paper, it is theoretically and experimentally demonstrated that appropriate synthesis pressures can increase the figure of merit (ZT) through optimizing thermal transport and electronic transport properties. Indium and barium atoms double-filled CoSb samples were prepared use hig...

Multifunctional modification of linen fabric using chitosan-based formulations.

Chitosan is a new-age functional biopolymer which can be utilized for functional finishing of cellulose-based textile materials. In the current work, linen fabric was modified using two-stage finishing using chitosan-citric acid and phytic acid-thiourea thus imparting multiple performance characteristics such as wrinkle-free, antibacterial, flame retardant and antioxidant properties. The multifunctional linen fabrics were characterized using FTIR, TGA, SEM and EDX analysis. The fabrics were evaluated for te...

In vivo and ex vivo elastic properties of brain tissues measured with ultrasound elastography.

Determining the mechanical properties of brain tissues is essential in the field of brain biomechanics. In this paper, we use ultrasound-based shear wave elastography to measure both in vivo and ex vivo elastic properties of brain tissues. Our results demonstrate that the shear modulus from in vivo measurements is about 47% higher than that given by the ex vivo measurements (p value = 0.0063). The change in ex vivo elastic properties within 60-min post-mortem is negligible. The results also show that within...

Covalent modification of soy protein isolate by (-)-epigallocatechin-3-gallate: effects on structural and emulsifying properties.

Soy protein isolate (SPI) has promising applications in various food products because of its excellent functional properties and nutritional quality. The structural and emulsifying properties of covalently modified SPI by (-)-epigallocatechin-3-gallate (EGCG) were investigated.

Two Decades under the Influence of the Rule of Five and the Changing Properties of Approved Oral Drugs.

Two decades have passed since the Rule of Five ushered in the concept of "drug-like" properties. Attempts to quantify, correlate and categorize molecules based on Ro5 properties evolved into the introduction of efficiency metrics with far reaching consequences in decision making by industry leaders and scientists seeking to discover new medicines. Examination of oral drug properties approved before and after the original Ro5 analysis demonstrates that some parameters such as clogP and HBD remained constant ...

Multiscale Mechanics of Triply Periodic Minimal Surfaces of Three-Dimensional Graphene Foams.

The mechanics of triply periodic minimal surfaces (TPMSs) with three-dimensional (3D) graphene foams are systematically studied to understand the effects of structure and size on the mechanical properties, e.g., elasticity, strength, and fracture. The design of lightweight open-shell porous solid materials with TPMSs has shown excellent and tunable load-bearing properties. However, fracture properties and their relations with surface topologies are largely unknown. Utilizing reactive molecular dynamics simu...

Integrating student-focused career planning into undergraduate gerontology programs.

As our global older adult populations are increasing, university programs are well-positioned to produce an effective, gerontology-trained workforce (Morgan, 2012; Silverstein & Fitzgerald, 2017). A gerontology curriculum comprehensively can offer students an aligned career development track that encourages them to: (a) learn more about themselves as a foundation for negotiating career paths; (b) develop and refine career skills; (c) participate in experiential learning experiences; and (d) complete compete...

Low-level image properties in facial expressions.

We studied low-level image properties of face photographs and analyzed whether they change with different emotional expressions displayed by an individual. Differences in image properties were measured in three databases that depicted a total of 167 individuals. Face images were used either in their original form, cut to a standard format or superimposed with a mask. Image properties analyzed were: brightness, redness, yellowness, contrast, spectral slope, overall power and relative power in low, medium and...

Sulfonyl-containing phenyl-pyrrolyl pentane analogues: Novel non-secosteroidal vitamin D receptor modulators with favorable physicochemical properties, pharmacokinetic properties and anti-tumor activity.

Modulating the vitamin D receptor (VDR) is an effective way to treat for cancer. We previously reported a potent non-secosteroidal VDR modulator (sw-22) with modest anti-tumor activity, which could be due to its undesirable physicochemical and pharmacokinetic properties. In this study, we investigated the structure-activity and structure-property relationships around the 2'-hydroxyl group of sw-22 to improve the physicochemical properties, pharmacokinetic properties and anti-tumor activity. Compounds 19a an...

Effects of Thickness on Corneal Biomechanical Properties Using Optical Coherence Elastography.

Measured corneal biomechanical properties are driven by intraocular pressure, tissue thickness, and inherent material properties. We demonstrate tissue thickness as an important factor in the measurement of corneal biomechanics that can confound short-term effects due to UV riboflavin cross-linking (CXL) treatment.

Effect of Fluorinated Ligand on Structural, Electronic and DNA-binding Properties of Copper Paddlewheel Complex: Synthesis, Structure and Properties.

This paper presents synthesis, structural description and properties of a binuclear paddlewheel copper(II) carboxylate complex with formula [(py)Cu(μ-L)4Cu(py)], where py = pyridine and L = 4-fluorophenylacetate. Structural characteristics, electronic absorption and DNA-binding properties of the synthesized complex have been compared to those of the non-fluorinated analogues (where F is replaced by H, -CH3 and -OCH3) already reported and the modifications successfully ascribed to fluorine. The complex exhi...

Effect of ampicillin on adhesive properties of bacteria examined by atomic force microscopy.

Discovery of new antibacterial agents requires the development of novel techniques for bacteria surface characterization after treatment with antibiotics. In this study, we investigate the effect of ampicillin at MICs levels on adhesive properties of Gram-positive and Gram-negative bacteria, using atomic force microscopy (AFM). Our results revealed that the treatment leads to changes of bacterial surface properties, especially cell surface roughness. A nanomechanical alteration of the cells led to an increa...

An investigation of left-right vocal fold symmetry in rheological and histological properties.

The primary objective was to investigate the left-right vocal fold symmetry in rheological and histological properties using a rabbit model. The other objective was to develop statistical models for the comparison of rheological properties between paired vocal folds.

Role of interparticle interactions on microstructural and rheological properties of cellulose nanocrystal stabilized emulsions.

Microstructural and rheological properties of particle-stabilized emulsions are highly influenced by the nanoparticle properties such as size and surface charge. Surface charge of colloidal particles not only influences the interfacial adsorption but also the interparticle network formed by the non-adsorbed particles in the continuous phase.

Modulating the Electronic and Magnetic Properties of Bilayer Borophene via Transition Metal Atoms Intercalation: From Metal to Half Metal and Semiconductor.

Borophene, two-dimensional monolayer made of boron atoms, has attracted wide attention due to its appealing properties. Great efforts have been devoting now to fine tune its electronic and magnetic properties for desired applications. Herein we theoretically investigate the versatile electronic and magnetic properties of bilayer borophene (BLB) intercalated by 3d transition metal (TM) atoms, TM@BLBs (TM=Ti-Fe), using ab initio calculations. Four allotropes of AA-stacking (α1-, β-, β12- and χ3-) BLBs wit...

Patellar tendon properties distinguish elite from non-elite soccer players and are related to peak horizontal but not vertical power.

To investigate potential differences in patellar tendon properties between elite and non-elite soccer players, and to establish whether tendon properties were related to power assessed during unilateral jumps performed in different directions.

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