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Previous experiments have demonstrated that oral administration of retinoic acid to ICR mice on day 10 of gestation results in an enhanced expression of postaxial polydactyly of the forelimbs. In the present investigations, the development of the limbs from the time of treatment until the appearance of the defect on da... |
Symmetric level-index arithmetic was introduced to overcome the problems of overflow and underflow in scientific computations. A hybrid SLI-FLP number system, together with some recent improvements of SLI arithmetic can result in a sound implementation of over/underflow free computer arithmetic. The hybrid arithmetic a... |
Introduction and Background Post-transplant surveillance for acute rejection is typically based on regular monitoring of serum creatinine levels and consecutive biopsies upon functional renal impairment. Attempts have been made to develop non-invasive tests based on urinary markers to detect acute rejection. Probably d... |
Over 50 genes are inducible by hypoxia, via hypoxia inducible factor 1a (HIF-1a). Carbonic anhydrase IX (CAIX) is one of the most inducible and most uniformly induced genes and because of its stability and membrane location provides a reliable histochemical marker of hypoxia. Recent studies have shown the importance of... |
In optical wireless communications, a channel-matched adaptive coherent receiver may be implemented using an array of receive apertures. After atmospheric channel fading estimation, several replicas of a message received through the atmosphere are combined. As an alternative to training-based channel estimation, we ana... |
In this paper, a nonlinear dynamic MIMO model of a 6-DOF underactuated quad rotor rotorcraft is derived based on Newton-Euler formalism. The derivation comprises determining equations of motion of the quad rotor in three dimensions and seeking to approximate the actuation forces through modeling of the aerodynamic coef... |
Background/Aim: The underlying mechanism of the development of cups and grooves on occlusal tooth surfaces is still unclear. The aim of this study was to evaluate factors contributing to in vitro cup formation, in order to elucidate the clinical process. Methods: A total of 48 extracted human molar teeth were exposed t... |
Abstract A wicked problem is identified in South African property law as the inaccessibility of secure land/housing rights for the vulnerable. This problem is contextualised as largely unsolvable when working with reductionist frames, after which the core and extent of the problem is unpacked with reference to two inte... |
This paper considers a method for detecting faulty elements in a linear phased array by means of set near-field probes. Using the asymptotic correspondence for two- and three-dimensional problems of the antenna theory leads to simpler mathematical models for the vertical dipoles array. A numerical study of mathematical... |
Statins may benefit patients receiving cyclosporine A (CsA) treatment after organ transplantation. However, there is little in vitro data to support the use of statins to reduce the harmful effects of CsA such as hyperkalemia. Our cell‐attached patch‐clamp data showed that CsA inhibited an inwardly rectifying potassium... |
Insect cuticle has a broad range of mechanical properties. As it has to provide a very efficient and lightweight skeleton, cuticle is a highly interesting composite-material and may serve as a natural model for new biomimetic materials. However, the water content of insect cuticle is of great importance for its materia... |
Crystal structure of the S187F variant of human liver alanine: Aminotransferase associated with primary hyperoxaluria type I and its functional implications Elisa Oppici, Krisztian Fodor, Alessandro Paiardini, Chris Williams, Carla Borri Voltattorni, Matthias Wilmanns, and Barbara Cellini* 1 Department of Life Sciences... |
The design of the solar LED street lamps based on MCU , which combines the MPPT of solar cells with PWM improves the reliability of the operating system of solar LED street lamps and extend the lifespan of the lead-acid battery , It adopt a controlling method for battery discharging process according to SOC of battery ... |
In recent decades, Convolutional Neural Network (CNN) has achieved remarkable results in both the research field and the application field due to the significant achievement acquired in computer technology. However, handwritten digit recognition still has great development space due to its complexity. At present, the r... |
BACKGROUND |
To evaluate the early results of fenestrated/branched endovascular aortic repair (F/B-EVAR) of thoracoabdominal aortic aneurysms (TAAAs) using physician-modified Ankura endografts (PMEGs). |
METHODS |
Sixteen consecutive patients who underwent F/B-EVAR using PMEGs between July 2017 and December 2018 were retrospectively reviewed. The perioperative mortality and morbidity of the PMEG technique were assessed, and the early results of follow-up were evaluated. |
RESULTS |
The median age of the patients was 75.3 years old (range, 48-83 years), and 12 (75.0%) patients were male. The median TAAA diameter was 7.1±1.5 cm (range 5.1-11 cm). The initial technical success rate of vessel revascularization was 98.2% (55 of 56). Target vessel patency was 98.1% (52/53), and freedom from reintervent... |
CONCLUSIONS |
In conclusion, PMEGs represent an important innovation, with favorable initial results, in the treatment of patients with complex TAAAs who may be unfit for open repair. In addition, they remain a promising option for high-risk patients in need of urgent repair who cannot wait for a custom-made device.Sub-dural hematom... |
The appearance of a subdural hematoma (SDH) following spinal anesthesia is a serious and rare complication which mandates prompt diagnosis, although the treatment modalities are not well codified. Patients with post-dural puncture headache (PDPH) non-responsive to conservative measures and/or those patients with a chan... |
Modeling and simulation (M&S) play a significant role in management and decision making in modern enterprises. New methods, techniques and tools have been arising to help organizations to succeed in M&S. We can find many cases of successfully application of M&S in organizations, but normally departmental efforts. Matur... |
The authors present a new and fully hierarchical approach to automatic test-pattern generation, for digital MOS VLSI circuits. The description of a VLSI circuit consists of several hierarchical levels of interconnected modules. Each module consists of one or more sub-modules are functionally described by ordered binary... |
We have constructed a model to predict the properties of non-ionic (alkyl-ethylene oxide) (C(n)E(m)) surfactants, both in aqueous solutions and near a silica surface, based upon the self-consistent field theory using the Scheutjens-Fleer discretisation scheme. The system has the pH and the ionic strength as additional ... |
Spectrum prediction can further improve the performance of cognitive radio system, save spectrum sensing time and improve the communication quality of secondary users. To improve the accuracy of spectrum prediction and reduce the interference to the primiary users from the perspective of prediction, a hybrid spectrum p... |
It is report five cases of stings of africanized bees (AB). Four of them were victims of multiple stings, varying from 25 to 60, that presented severe headache, nauseas and vomits, related to the clinic effect of the toxicity of the venom, with good evolution. The other case was victim of a single sting of AB and died ... |
The women have various responsibility in the family because they have to take care of children, family members and also have to involve in the outdoor activities to generate income. Participation on of women in economic activities is high in Sikkim. Women also play a major role in trending activities. So the study has ... |
Immunoblots of sodium dodecyl sulfate-polyacrylamide gels derived from outer membrane preparations of various strains of Rhodopseudomonas sphaeroides revealed polypeptides which cross-reacted with antibody directed against the major outer membrane protein of R. sphaeroides 2.4.1. Immunochemical quantitation of the majo... |
Abstract Planning the development efforts within large-scale projects is a highly complex mission due to uncertainties regarding different aspects of the product to be delivered. Current planning practices employ a host of methods for project planning, with Work Breakdown Structure (WBS) being a prominent one of them. ... |
In this letter, we present an attentional non-linear activation function approximation method called ATA for VLSI-based neural networks. Unlike other approximation methods that pursue the low hardware resources with a high recognition accuracy loss, the ATA utilizes the pixel attention to focus on the important feature... |
Galdeano et al. introduced the so-called information market game involving n identical firms acquiring a new technology owned by an innovator. For this specific cooperative game, the nucleolus is determined through a characterization of the symmetrical part of the core. The nonemptiness of the (symmetrical) core is sho... |
This discussion responds to questions and comments made by Stefanie Solow-Glennon and Jean Wolff Bernstein. Here I further clarify different types of solitude and their connection to creativity and pathology. Many solitary individuals, creative and otherwise, are involved in a project that for them may be their most si... |
A common polymorphism of human alpha fucosidase has been detected by the technique of isoelectric focusing on thin layer acrylamide gel. Family studies have shown that the three common phenotypes Fu 1, Fu 2, and Fu 2-1 represent homozygosity or heterozygosity for two autosomal codominat alleles, Fu1 and Fu2. Frequencie... |
A detailed description and up to date biogeographic regionalization of cultivated cacao (Theobroma cacao L.) are lacking in Colombia. Here we propose a new biogeographical regionalization of cultivated cacao for Colombia. We used spatial partitioning, geospatial mapping of macro/microclimate variables and a hierarchica... |
Factor B is a serine protease, essential for the function of the alternative pathway of complement activation. To study further the importance of the alternative pathway of complement activation in vivo and to help elucidate any additional functions of factor B or its activation fragments we developed, by homologous re... |
normal hair, but one with has a thinner section of shaft at the point where the disease has struck (or several, if there have been recurrent episodes). Such hairs are easily seen with a hand lens, but a lazier way to identify them is by pushing the hair inwards towards the scalp, which produces a very obvious kink in t... |
BACKGROUND |
An analysis of radiotherapy infrastructure in Korea was performed in 2006 to collect data on treatment devices, the work force and new patients for future development plans. |
METHODS |
The survey included radiotherapy centers, their major equipment and personnel. The centers were categorized into four levels: level 0 (stand-alone teletherapy units); level 1 (teletherapy, brachytherapy, treatment planning system, and at least the part-time service of a medical physicist); level 2 (level 1 plus individ... |
RESULTS |
A total of 61 facilities delivered radiation therapy with 104 megavoltage devices, which included 96 linear accelerators, two cobalt 60 units, three Tomotherapy, two CyberKnife units and one proton accelerator. There were 28,789 new radiotherapy patients in 2004. Personnel included 132 radiation oncologists, 50 radiati... |
CONCLUSIONS |
There is a shortage of human resources. The distribution of megavoltage units per million inhabitants over the country was inadequate; geographic disparities were noted. Furthermore, the necessity of quality assurance for recent high-technology radiation therapy is increasing.AN ANALYSIS OF MECHANICAL AND TRIBOLOGICAL |
PROPERTIES OF Zr/Zr2N MULTILAYER COATINGS |
The paper presents the analysis of effect of the Zr to Zr2N layer thickness ratios of 1:1, 1:2, and 1:4 on the |
mechanical properties of Zr /Zr2N multilayer coatings. With the increase in the amount of the ceramic phase in |
the multilayer coating, an increase in hardness from 11 to 14.5 GPa and Young's modulus from 158 to 211 GPa |
was observed. This was accompanied by improved scratch resistance as critical load LC2 raises from 17 to over |
30N. A ratio increase from 1:1 to 1:2 caused a 3-fold improvement in the coating wear resistance, which was |
also accompanied by a change in the wear mechanism. However, there was no further improvement of this |
parameter with a ratio increase to 1:4. Microscopic analysis of wear tracks, using the TEM technique revealed |
that the Zr metal layers change the direction of crack propagation. This phenomenon results in the improved |
fracture resistance of multilayer coatings compared to single coatings. Such a mechanism was even observed |
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