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I still have in my possession a Chladni plate. It is one that I constructed myself as a young lad interested in studying science. It was a way to investigate the vibrational effect that different sound frequencies had on the physical distribution and patterns formed by sand on a metal plate that is vibrated at differen... |
A review of Melita group (fam. Melitidae) from the shelf of Sakhalin Island based on literature and own data is provided. Based on new material, four new species of the genus Megamoera are described: M. similidentata sp. nov. and M. striata sp. nov. from north-east shelf of Sakhalin Island; M falsomikulitschae sp. nov.... |
The main challenge in control of photovoltaic (PV) power system is to operate at maximum efficiency. The I-V characteristics of PV system are non-linear, which makes it difficult to track the maximum power at varying Insolation and temperature. In this paper a 50W photovoltaic module based system is investigated for it... |
Circadian rhythm of plasma corticosteroids and the plasma corticosteroid response during both the 4-hour ACTH test and the 1 mg dexamethasone suppression test (1 mg-DST) have been studied in seven cases of Cushing's syndrome. The early morning baseline values were normal in five out of seven, but elevated in all cases ... |
This article is concerned with the problem of the static output-feedback control for a class of discrete-time linear semi-Markov jump systems (SMJSs). Through a mode-dependent resilient control scheme and an invertible linear transformation, a resulting equivalent closed-loop system can be obtained. The embedded Markov... |
We prove that in a locally finite dimensional Lie algebra L, any maximal, locally solvable subalgebra is the stabilizer of a maximal, generalized flag in an integrable, faithful module over L. Then we prove two structure theorems for simple, locally finite dimensional Lie algebras over an algebraically closed field of ... |
OBJECTIVE |
To investigate the expression of the genes fragile histidine triad (FHIT), Bcl-2, and Bax, biological markers of breast infiltrating ductal carcinoma in this carcinoma and clinicopathological significance thereof. |
METHODS |
The clinical data of 100 patients with breast infiltrating ductal carcinoma, all females, aged 435 (28 - 92), were collected. Immunohistochemistry was used to detect the protein expression of FHIT, Bcl-2 and Bax in the carcinoma tissues resected during operation. |
RESULTS |
The protein expression rates of FHIT, Bcl-2 and Bax in the tumor tissues were 73%, 50%, and 34% respectively. The disease free survival (DFS) and overall survival (OS) of the FHIT positive patients were 81.8 months and 123.6 months, both significantly longer than those of the FHIT-negative patients (27.7 months and 74 ... |
CONCLUSION |
Expression of FHIT and expression of Bcl-2 are positively correlated to the DFS and OS of the breast infiltrating ductal carcinoma. Bax is not predictive to the prognosis of breast infiltrating ductal carcinoma.The development of Ethernet based radar and ECDIS image processing for Voyage Data Recorder |
The function of radar image recording in VDR (Voyage Data Recorder) installed on a ship has been adapted in IMO constraint regulations. For this function, a VDR should be equipped with the dedicated recording device called “Image Grabber”. Recently, as the number of radar on a ship has increased, the number of image gr... |
Iterative learning control (ILC) is a technique especially developed for application to processes that are required to repeat the same operation over a finite duration. The exact sequence of operation is that the task is completed, the process is reset and then the operation is repeated. Applications are widespread amo... |
A modified Snell's law for light rays in uniformly moving isotropic dielectrics is discussed for the case when the velocity of the medium is parallel to the medium-vacuum interface. The direction of the ray in the moving medium is found by using an expression for the magnetic field obtained in a previous work, in the e... |
Present-day interconnected electric power systems are the largest machines in the world. Guaranteeing a stable supply of electric power is vital for modern societies: power systems must be able to withstand plausible disturbances. A certain number of simulations of the post-disturbance behavior are routinely executed b... |
Background: The professional self is the set of beliefs and va lues that guide the nurse's interactions with the patient and their way of thinking and actions. Aim: This study was conducted to examine the level of p r essional self-concept and the affecting factors in nurses. Method: The sample of the present descripti... |
Tenascin-C (TNC) is an extracellular matrix glycoprotein sparsely detected in normal but highly expressed in pathological condition associated with inflammation in variety of tissues. By taking advantage of its specific expression, TNC is applicable as a biomarker and a molecular imaging target for diagnosis of disease... |
ABSTRACT The prediction of efficacy of Neisseria meningitidis serogroup B (MenB) vaccines is currently hindered due to the lack of an appropriate correlate of protection. For outer membrane vesicle (OMV) vaccines, immunogenicity has primarily been determined by the serum bactericidal antibody (SBA) assay and OMV enzyme... |
Malignant peripheral nerve sheath tumours are uncommon aggressive soft tissue sarcomas that originate from peripheral nerves or cells associated with the nerve sheath. Scalp malignant peripheral nerve sheath tumours are extremely rare and the role of multimodality management is unclear. We report a 43-year-old female w... |
The de facto role of China as the main economic and development player in Central Asia goes unrecognised in official and public discourses due to the prevalence of opinion-based policymaking in the region. Although evidence-based policymaking is well established in the developed world, Central Asian states have yet to ... |
We retrospectively examined Michigan Eye-Bank and Transplantation Center data on all eye/cornea donors in Michigan and Illinois for whom human immunodeficiency virus (HIV) antibody screening results were available. This was done to compare the HIV-antibody positive serology rate in hospital versus medical examiner dono... |
In this work the investigation of copper-solder interface with Atomic Force Microscope (AFM) is presented. Multiple contact and tapping-mode AFM images were made on presoldered cross-sectional SAC (Sn-Ag-Cu) solder joint samples. The formation of oxide layer was observed and the structural properties of oxide were moni... |
In order to ascertain the immediate histopathological changes of rat brain following experimental surgical injury, fragments of left parietal cortex were obtained through craniotomy and fixed by immersion. Next, the animals were killed by perfusion with the same fixative used for the respective biopsy. Five groups of r... |
We have characterized the reactivities of a panel of V4‐34‐encoded human IgM monoclonal antibodies (mAb) which bind the erythrocyte Rh D antigen, derived from an immunized individual. These were compared with the specificities of V4‐34‐encoded autoantibodies with I/i reactivity produced from patients with cold agglutin... |
The results of non-oxidative leaching with sulphuric acid followed by atmospheric leaching with oxygenated H2SO4 have been presented for shale containing middlings (tailings from 1 st cleaning flotation) from Lubin Concentrator. It was found that all leaching or bioleaching processes performed in acidic media has to be... |
No conventional technique for routine assessment of tibial torsion, the twisting of tibia around the longitudinal axis, has yet gained acceptance. Clinical measurements give approximate values only. Methods employing tropometers and other mechanical devices have mainly been used for measurement in skeletal specimens an... |
Crosslinked or non-crosslinked ultrathin semipermeable membranes based on the N -butylated and N -butylsulfonated polybenzimidazole (BPBI and BSPBI) were successfully prepared by spin-coating method. Structural characterization by FTIR and WAXD revealed that the N -substitution and the crosslinked structure of PBI supp... |
MAPFS is a parallel file system integrated with a multiagent system responsible for the information retrieval. One of the fields where the agents can be very useful is precisely in the development of information recovery systems. The usage of a multiagent system implies coordination among the agents that belong to such... |
Chick periosteum-derived mesenchymal cells have been reported to exhibit both osteogenic and chondrogenic potentials in high cell density culture conditions. Using this culture system, the effects of transforming growth factor-beta (TGF beta) on proliferation and differentiation of periosteal mesenchymal cells were stu... |
The behavior of misfit dislocations in GaAs buffer layers grown on Si was investigated by the measurement of stresses using optical interferometry and X-ray diffraction. The buffer layers grown at 250°C with various thicknesses (0.05∼0.20 µm) were annealed at various temperatures (400∼600°C). The overlayers were grown ... |
In a previous study, we isolated the spaA gene encoding the surface protective antigen A, SpaA, of Erysipelothrix rhusiopathiae, and found that the N-terminal region of SpaA was responsible for protective immunity against erysipelas and that the C-terminal region contained eight repeat units consisting of 20 amino acid... |
On the eve of his becoming president of the American Library Association the author has written another devotional book for the profession, a sequel to his popular Our Singular Strengths: Meditations for Librarians (ALA, 1998), which was reviewed in this journal in volume 34, number 3. The present volume adds more than... |
A practical solution is presented to increase the stability of 4.45 V LiCoO2 via high‐temperature Ni doping, without adding any extra synthesis step or cost. How a putative uniform bulk doping with highly soluble elements can profoundly modify the surface chemistry and structural stability is identified from systematic... |
Dietary interventions with flavan-3-ols have shown beneficial effects on vascular function. The translation of these findings into the context of the health of the general public requires detailed information on habitual dietary intake. However, only limited data are currently available for European populations. Theref... |
ABSTRACT Professional development courses help teachers integrate new content knowledge into the high-school curriculum. Designing practical online courses for this purpose is challenging, particularly in emerging fields such as nanotechnology. In this study, we evaluated such a course in three complementary dimensions... |
Investigation of genetic diversity and the relationships among varieties and breeding lines is of great importance to facilitate parental selection in the development of inbred and hybrid rice varieties and in the construction of heterotic groups. The technology of single nucleotide polymorphism (SNP) is being advanced... |
With the goal of developing artificial nucleases for DNA hydrolysis, metal-coordinating peptides have been tethered to a DNA-intercalating rhodium complex to deliver metal ions to the sugar-phosphate backbone. The intercalator, [Rh(phi)(2)bpy']Cl(3) [phi = 9,10-phenanthrenequinone diimine; bpy' = 4-(butyric acid)-4'-me... |
This paper analyzes optimal control of a grid-connected converter (GCC) based on the adaptive critic designs (ACDs), especially on heuristic dynamic programming (HDP). Instead of using a trained model neural network to identify the dynamics of the plant, the paper uses exact GCC plant mathematical model to reflect the ... |
A complete set of closed analytical expressions is presented in a unified manner for the internal displacements and strains due to shear and tensile faults in a half-space for both point and finite rectangular sources. These expressions are particularly compact and systematically composed of terms representing deforma... |
OBJECTIVE |
To evaluate the peak inspiratory pressure and ventilation rate achieved by physicians when using a neonatal self-inflating bag on a lung model. |
METHODS |
Fifteen physicians ventilated full term and preterm infant lung simulators while the outcomes were captured by a ventilation monitor. |
RESULTS |
Median peak pressures in cmH(2)O for full term and preterm lungs were 23 (interquartile range: 15-47) and 26 (interquartile range: 14-51), being less than 20 in 41.2 and 35.8% of the pressure curves analyzed, more than 40 in 29.7 and 33.6%, and between 27 and 33 cmH(2)O in 8.2 and 6.5% of the curves, respectively. Medi... |
CONCLUSIONS |
Ventilation rates achieved with the self-inflating bag were adequate in approximately 80% of pressure curves analyzed, but the physicians were unable to provide ventilation with minimal pressure variation, producing pressures that diverged from those defined by the neonatal resuscitation training course in 70% of the c... |
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