Classification of Electron States in a Thin Film in an External Longitudinal Magnetic Field

This research was supported as part of Project CPBP-01.12 of the Polish Academy of SciencesThe electron energy spectrum is considered for a simple model of a thin film in an external longitudinal magnetic field. A systematic classification of the electron states in the thin film is carried out.Zadanie pt. „Digitalizacja i udostępnienie w Cyfrowym Repozytorium Uniwersytetu Łódzkiego kolekcji czasopism naukowych wydawanych przez Uniwersytet Łódzki” nr 885/P-DUN/2014 zostało dofinansowane ze środków MNiSW w ramach działalności upowszechniającej naukę

Wzór medialny specjalisty personalnego i samoocena przygotowania zawodowego absolwentów specjalności „zarządzanie kadrami”. Społeczno-kulturowe aspekty współpracy szkoły wyższej z pracodawcami

This article based on research which attempted to reconstruct the image of the HR manager and get to know students value system and their expectations for competencies related to the role of HR manager. The results of the research allowed to answer the question about compliance the representations of students’ perceptions with that of professional environment

U-Pb geochronology, Hf isotopy and trace element geochemistry of detrital zircons from recent sediments of the Orange and Vaal river system in South Africa

Die vorliegende Arbeit beschäftigt sich mit der geochemischen und isotopischen Analyse detritischer Zirkonminerale aus rezenten Sedimenten des weit verzweigten Orange- und Vaal River Flusssystems in Südafrika. Zirkone kristallisieren überwiegend aus krustalen Schmelzen und sind äußerst resistent gegenüber jeglicher Zerstörung und damit ein idealer Kandidat zur Rekonstruktion früherer Krustenbildungsprozesse der geologischen Erdgeschichte. Der kombinierte Ansatz der U-Pb Altersdatierung, der Hf Isotopie und der Spurenelementgeochemie mittels Laserablation und des Einsatzes induktiv-gekoppelter Sektorfeld- und Multikollektormassenspektrometer ermöglicht es die krustale Wachstums- und Entwicklungsgeschichte des südafrikanischen Kratons zu erfassen. Die mehr als 1200 U-Pb Analysen der Zirkone weisen 4 tektonische Hauptphasen des südafrikanischen Kontinents nach: 1. die Panafrikanische Orogenese (0.5-0.7 Ga), 2. das Namaqua-Natal Faltengürtelorogen (1.0-1.3 Ga), 3. die Kheis Orogenese (1.8-2.0 Ga) und 4. die westliche Kaapvaal-Kratonisierung (2.9-3.2 Ga). Allerdings zeigt sich, dass die 13 Probenlokationen überwiegend lokale bzw. regionale U-Pb Altersdaten ihrer umgebenden Herkunftsgebiete liefern. Die Hf Isotopie der Zirkone der verschiedenen tektonischen Hauptphasen Südafrikas stellen ihre differenzierte Akkretions- und Aufschmelzungsgeschichte dar. Die panafrikanischen Zirkone zeigen eine ausgeprägte Durchmischung von juvenilem und recyceltem Material. Die mesoproterozoischen (Namaquan) Zirkone entstanden aus juvenilem Magma während eines Inselbogen-Kontinent-Kollisionsereignisses. Die paläoproterozoischen und archaischen Zirkone sind Produkte von aufgeschmolzener prä-existierender kontinentaler Kruste oder vom Mantel abstammende Schmelzen, die durch kontinentale Kruste kontaminiert wurden. Die berechneten Hf Modellalter, so genannte „Mantelextraktionsalter" ergeben zwei Maxima, die zwei Stadien juvenilem Krustenwachstums einschließen, einmal vor 1.4 und 3.2 Ga. Dieses krustale Wachstum zeigt eine Übereinstimmung mit den progressiv episodischen Modellen von Nagler & Kramers (1998) sowie Condie (2000) mit Höhepunkten zwischen 3.0 und 2.0 Ga sowie den Studien von Wang et al. (2008) mit krustalen Wachstumsperioden von 1.6 bis 2.2 und 2.9 bis 3.4 Ga auf dem Nordamerikanischen Kontinent und auf dem Gondwana-Kontinent (Australien) von Hawkesworth & Kemp 2006) und implizieren wohl ein globales kontinentales Krustenwachstum. Die Abgrenzung und Wiedererkennung der Zirkone anhand der chemischen Zusammensetzung zu möglichen Muttergesteinen zeigen noch keine viel versprechenden Ergebnisse. Generell weisen die Zirkone eine magmatische granitoide Zusammensetzung kontinentalen Ursprungs auf. Eine Auffälligkeit stellen die erhöhten Spuren- und leichten Seltenenerdelemente in Zirkonen jeglicher Altersklassen dar. Nachfolgende Arbeiten müssen zeigen, wie und ob diese Anreicherungen Einfluss auf die chemische Zusammensetzung, die U-Pb Datierung und vor allem die Hf-Isotopie der Zirkone haben.Detrital zircon crystals from recent sediments of the Orange and Vaal riversystem in South Afrcia were collected for geochemical and isotopic analysis. Zircon crystallize predominantly from crustal melts and are extremely resistant in relation to any destruction and thus an ideal candidate to the reconstruction of ancient crustal processes in the geological record. Therefore the combined use of U-Pb age dating, Hf isotopic signatures and trace element compositions by laser ablation and inductive-coupled sector field and multi-collector mass spectrometers (LA-SF-ICP-MS & LA-MC-ICP-MS), from the South African zircons, should provide new constraints on the nature and growth history of the Southern Africa Craton and on the evolution of igneous and metamorphic rocks formed during and subsequent to orogenic cycles. More than 1200 U-Pb analyses of the zircons yield ages of four main tectonic episodes of the South African continent: 1. the Panafrican orogeny (0.5-0.7 Ga), 2. the Namaqua Natal foldbelt orogeny (1.0-1.3 Ga), 3. the Kheis orogeny (1.8-2.0 Ga) and 4. the western Kaapvaal cratonisation (2.9-3.2 Ga). However it shows up that thirteen sample locations supply predominantly from local and/or regional U-Pb age data of their surrounding origin areas. The Hf isotopic analysis of the zircon from the distinct main tectonic episodes of South Africa represents their differentiated accretion and melting history. The Panafrican zircon show a pronounced mixing of juvenile and recycelted material. The Mesoproterozoic (Namaquan) zircon developed from juvenile magma during an island arc - continent collision event. The Paleoproterozoic and Archean zircon are products of more melted pre-existing continental crust or derived from mantle melts, which were contaminated by continental crust. The calculated Hf model age (mantle extraction age) results in two maxima, which include two stages of juvenile crustal growth, once before 1.4 and 3.2 Ga. This crustal growth are in agreement with the progressive episodic models of Nagler & Kramers (1998) and Condie (2000) with maxima between 3.0 and 2.0 Ga as well as the studies of Wang et al. (2008) with crustal growth periods from 1.6 to 2.2 and 2.9 to 3.4 Ga on the North American and on the Gondwana continent (Australia). This probably imply a global continental crust growth (Hawkesworth & Kemp 2006). The discrimination and reidentification of the zircon on the basis of their chemical composition to possible source rocks show still no promising results. Generally, the analysed zircon, exhibit a granitoide magma composition of continental origin. Particularly conspicuous are trace- and light rare earth element enrichments in zircon of any age groups. Following work will show, how and whether these enrichments influence the chemical composition, the U-Pb dating and above all the Hf-isotopy of the zircon

Klippel-Trenaunay syndrome: case report and literature review

Klippel-Trenaunay syndrome (KTS) is a rare congenital disease, characterized by a triad of clinical features: (1)capillary malformations, manifesting as a “port wine stain”, (2) vascular anomalies, mostly varicose veins and (3)bone and/or soft tissue hypertrophy, usually of one lower extremity. The symptoms are frequently accompaniedby lymphatic abnormalities that in some cases may lead to lymphedema. KTS is mostly benign in the course.Nevertheless, patients with KTS are at higher risk of developing deep vein thrombosis (DVT), pulmonary thromboembolism,recurrent episodes of thrombophlebitis, dermatolymphangitis or internal bleeding. Managementin KTS should be individualized, minimally invasive and involve multidisciplinary care of the patient. We reporta case of a man with fully symptomatic KTS, after incident pulmonary thromboembolism in the past and withsevere phlebolymphedema, effectively treated with decongestive lymphatic therapy (DLT). We also providea review of the literature on the clinical aspects of this complex syndrome

Advanced Technologies in Dermatology

Cellular therapies are an attractive area of regenerative medicine. For large partial thickness wound, keratinocytes transplant is suggested. The transplantation of cell graft is achieved by obtaining large amounts of cultured cells from a skin biopsy in 3 weeks. Stem cells can be applied before that, but are also efficient in chronic wound closure. Alternative treatment methods are transplants of allogeneic, biostatic skin and amnion. Amnion can be applied as a skin substitute on shallow facialburn wounds, hand burn wounds, on donor areas and granulating wounds. For medium depth or even deep burns, allogeneic skin is recommended. Thanks to the removing of cells from human allogeneic dermis, collagen scaffolding is obtained. It can be populated de novo by autologous skin cells. Artificial skin substitutes are especially good for hand burns and shallow burns. Even though scarring is a part of normal wound healing, it often leads to a pathological process. When scar treatment methods prove insufficient, surgical intervention becomes necessary. Surgical scar intervention involves removal of the pathological skin tissue fragment and replacing it with healthy skin or application of expanders. Improvement of the visual features can be also achieved by laser therapy

Pengaruh Perkembangan Teknologi, Kompensasi, Dan Keterampilan Terhadap Kinerja Karyawan (Studi Pada Butik Clara Camici, Surakarta)

This study aims to determine the influence of technological development, compensation, and skills on employee performance at the Clara Camici Boutique, Surakarta. The sample used in this study was 35 respondents taken by distributing questionnaires from Clara Camici Boutique employees. Data analysis techniques used validity and reliability tests, classic assumption tests consisting of normality tests, multicollinearity tests, heteroscedasticity tests, and multiple linear tests, hypothesis testing using t tests, F tests, and coefficient of determination tests

Spectra of Harmonium in a magnetic field using an initial value representation of the semiclassical propagator

For two Coulombically interacting electrons in a quantum dot with harmonic confinement and a constant magnetic field, we show that time-dependent semiclassical calculations using the Herman-Kluk initial value representation of the propagator lead to eigenvalues of the same accuracy as WKB calculations with Langer correction. The latter are restricted to integrable systems, however, whereas the time-dependent initial value approach allows for applications to high-dimensional, possibly chaotic dynamics and is extendable to arbitrary shapes of the potential.Comment: 11 pages, 1 figur

Determination of complex small molecule structures using molecular alignment simulation.

Correct structural assignment of small molecules and natural products is critical for drug discovery and organic chemistry. Anisotropy-based NMR spectroscopy is a powerful tool for structural assignment of organic molecules, but relies on utilization of a medium that disrupts the isotropic motion of molecules in organic solvents. Here, we establish a quantitative correlation between the atomic structure of the alignment medium, the molecular structure of the small molecule and molecule-specific anisotropic NMR parameters. The quantitative correlation uses an accurate three-dimensional molecular alignment model that predicts residual dipolar couplings of small molecules aligned by poly( γ -benzyl-ʟ-glutamate). The technique facilitates reliable determination of the correct stereoisomer and enables unequivocal, rapid determination of complex molecular structures from extremely sparse NMR data

Resource-Based View of Laboratory Management: Tissue Bank ATMP Production as a Model

Modern health care organizations, e.g., tissue banks, require a resource-based view (RBV) for an efficient stimulation of innovation, productivity, and performance, especially in the context of laboratory management and new product development. High quality advanced therapy medicinal products (ATMPs) are expected to bring important health benefits; therefore, their production has to be performed in accordance with good manufacturing practice (GMP). Although there are no precisely defined criteria for quality control/evaluation methods of obtained ATMPs, all aspects of pharmaceutical quality of ATMPs’ development, manufacturing, distribution, inspection, and review processes ought to be strictly fulfilled. Explicit performance management and production regimes in accordance with pharmacopeia and RBV philosophy have been proposed in this chapter