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P-type conductivity in GaN:Be epitaxial layers - source data
No full textElectron transport properties of Be-doped heteroepitaxial GaN layers grown by Metalorganic Vapor Phase Epitaxy were investigated by means of temperature-dependent Hall effect measurements. The Be concentration was in the range of 4×1018-3×1019 cm-3. P-type conductivity (not over-compensated by Be-related donors) from the isolated substitutional BeGa acceptors was revealed in all studied samples, with the highest room-temperature hole concentration of 4×1013 cm-3 for the most conductive sample. Resistivity of 10 kΩ cm and mobility of about 15 cm2/Vs were achieved. The conductivity decreased with increasing Be concentration, strongly indicating a self-compensation mechanism. Quantitative analysis of temperature-dependent Hall effect data showed a relatively deep position of the BeGa acceptor level, at EV+0.40 eV. This finding is consistent with the deep polaronic state of the Be acceptor revealed in previous optical and theoretical studies.The source data to the publication "P-type conductivity in GaN:Be" epitaxial layers (J. Appl.Phys.) contain the following materials.Source material to Fig. 1. I-V characteristics of two van der Pauw configurations of current and voltage probes (used for resistivity evaluation - V34 vs I12 and V41 vs I23) at RT, showing ohmic properties of the sample.Source Material to Fig. 2a and 2b. The dependence of the Hall voltage on magnetic field for sample #1 at room temperature (a) and at T = 476.6 K (b). Calculation of resistivity ro from the deposited source data was made according to the formula:ro=pi/ln(2)*d*I)*0.25*(Vdp1p-Vdp1m+Vdp2p-Vdp2m)I-current intensity.Vdp1p,Vdp2p - voltages measured at two van der Pauw configurations under positive current polarization.Vdp1m,Vdp2m - voltages measured at two van der Pauw configurations under negative current polarization.d=0.5 mikro-meter - thickness of the layer.Under the specific configuration of current, voltages (Vh1, Vh2) and magnetic field intensity (B) used in our experimental set-up the Hall voltages were calculated according to the formula:Vh=[(Vh1p-Vh1m)/2-(Vh2p-Vh2m)/2], whereVh1p,Vh2p - voltages measured at two different diagonal contact configuration under positive current polarization.Vdp1m,Vdp2m - voltages measured at two different diagonal contact configuration under negative current polarization.Conductivity type, carrier concentration (n or p) was evaluated from the sign and the value of the slope of the Vh(B), derived from its linear fit. Thus, the derivative d(Vh)/dB=IB/(qnd), where q=+e - elementary charge of hole (p-type conductivity, n=p) or q=-e - elementary charge of electron (n-type conductivity).Mobility of holes: mi=1/(ro*e*p), where ro,p were obtained previously.Source data to Fig 3a (hole concentration), 3b (resistivity) and 3c (mobiity) for samples with low, medium and high Be concentration.For each temperature point and each sample p,ro and mi were calculated from the deposited source data using the same procedure as in previous point.Data to Fig. 4, i.e. p/T^1.5 vs 1000/T dependance in order to obtain location of Be acceptor level for GaN:Be of low, medium and high concentration of Be.</ul
Interaction of selected plant secondary metabolites with Ap3A and Ap4A dinucleotide cell regulators
No full text[PL:]Przedmiotowy zbiór danych zawiera wyniki modelowania oddziaływań wybranych związków fenolowych oraz stilbenów z dwoma nukleotydowymi regulatorami cyklu komórkowego: Ap3A oraz Ap4A, a także ich energie interakcji.Cząsteczki zostały wstępnie zdokowane do modeli regulatorów z wykorzystaniem programu Autodock Nova. Wybrano predykcje o największej wartości powinowactwa wiązania (ang. binding affinity) z 8 proponowanych przez program do wyznaczenia energii interakcji. W przypadku predykcji o podobnych lub identycznych wartościach powinowactwa wybierano kilka modeli do badań z oznaczeniem kolejnych var_2 - var_4.Obliczenia energii interakcji wykonano z wykorzystaniem programu Gaussian 09 metodą Hartree-Focka. Stosowano bazy funkcyjne 3-21G (brak opisu bazy w nazwie), a następnie stosując pliki kontrolne z obliczeń tą bazą jako plik inputu dokonywano obliczeń bazą 3-21G*, 6-31G, oraz na końcu 6-31G(d). Dla pozostałych stosowanych baz, pliki wyjściowe w formacie .log zawierają nazwę przyrostek odnoszący się do baz funkcyjnych, odpowiednio _1 dla 3-21G*, _2 dla 6-31G oraz _3 dla bazy 6-31G(d). Energie oddziaływań obliczono wykorzystując funkcję programu counterpoise.[ENG:]The data set contains the results of interactions modeling between selected phenolic compounds and stilbenes with binucleotide cell-cycle regulators: Ap3A and Ap4A, as well as their interaction energies.The molecules were initially docked to the regulator models using the Autodock Nova program. For each model one prediction with the highest binding affinity value was selected out from 8 proposed by the program to determine the interaction energy. In the case of predictions with similar or identical binding affinity values, several models were selected for testing with the subsequent var_2 - var_4 descriptions in the file title.The interaction energy was calculated using the Gaussian 09 program using the Hartree-Fock method. The 3-21G function bases were used (no base description in the name), and then, using control files of calculations using this function base as input files, deepened calculations were made using the 3-21G*, 6-31G, and finally 6-31G(d) bases. For the extended bases used, the output files in .log format contain suffixes _1, _2, and _3, respectively. Interaction energies were calculated using the counterpoise function.</p
Forecasting the oil, gold, equity, and Bitcoin markets using robust multivariate range-based GARCH models
No full textThe file contains open, high, low, close prices, realized variances, and realized covariances for three exchange-traded funds (ETFs): the United States Oil Fund (USO), SPDR Gold Shares (GLD), SPDR Portfolio S&P 500 Growth (SPY), and Bitcoin (BTC).The data start on July 1, 2016, and end on June 28, 2024.</p
Feeding and ritual practices of the Early Iron Age based on the settlement in Milejowice and the necropolis in Domasław. Between the function and meaning of the ceramic “collections”
No full textThis collection contains the results of studies conducted during the realisation of the project titled "Feeding and ritual practices of the Early Iron Age based on the settlement in Milejowice and the necropolis in Domasław. Between the function and meaning of the ceramic “collections”The goal of this project is to reconstruct the function of clay vessels from the Hallstatt period, found in both settlement and funeral contexts. Comprehensive analyses of ceramic assemblages—the principles behind their selection and their locations—have been combined with a large series of molecular and archaeobotanical studies. The chemical research was conducted by Prof. Joanna Kałużna-Czaplińska’s team from the Lodz University of Technology.The settlement in Milejowice and the necropolis in Domasław offer unique opportunities for research. The features discovered there confirm changes analogous to those taking place in the entire cultural zone, including the adoption of customs practiced by Hallstatt elites by local communities. The scale of the contexts available for material selection at these exceptional sites is unprecedented. The complex uncovered in Milejowice, enclosed by a palisade, can be regarded as a local version of a seat for a leading social group, likely occupied by a privileged individual or family. The abundant ceramic material from this settlement comes not only from buildings of various functional and economic uses but also from wells and deposits. Meanwhile, the discovery of around 300 chamber graves at the vast cemetery in Domasław and their associated grave goods demonstrates the high status of the local community, which was integrated into an over-regional network of Hallstatt relations. The burials included sets of vessels reflecting feasting customs known from the Hallstatt cultural sphere. We presume these sets contained items intended for libations and material offerings: vessels for eating and drinking, ladling beverages, storage, and ritual activities.The interpretive potential provided by molecular methods—used to identify food and drink residues in ceramic fragments—allows us not only to determine the functionality of vessels recovered during excavations but also to deepen our understanding of ancient practices. These methods help us clarify the context and role of ceramic deposits found at both settlements and necropolises, as well as establish the intended use of ceramics that were given specific utilitarian or cultic properties.Deposited are chemical (GC-MS) data of all samples made in the project, as well as of selected samples (with descriptions) for publications.A gas chromatograph connected to a mass spectrometer was used to identify organic compounds in vessel samples. The procedure of sample preparation included extraction of the total lipid fraction from ceramic material and derivatisation of isolated analytes (silylation). A detailed description of sample preparation and apparatus parameters has been described in previous publications (Józefowska et al. 2024; Rosiak et al. 2024). Qualitative analysis of organic acids and biomarkers was performed using Wiley and NIST14 mass spectral libraries and commercially available standards. Quantitative analysis of fatty acids was performed using the internal normalisation method.</p
ICZMP - Movesense data
No full textECG data from the Movesense device of all 48 patients included to the PROVIDE project till 28.02.2025Device used: Movesense Flash SensorLegend for file names: ICZMP001-ICZMP048 - subsequent patient codes.zip file contain one or more .csv files recorded by the Movesense device in given patient</p
Wpływ pola elektromagnetycznego o ekstremalnie niskiej częstotliwości (ELF-EMF) na epigenetyczną regulację ekspresji genów, apoptozę i stres oksydacyjny w endometrium w okresie okołoimplantacyjnym.
No full textCelem niniejszego projektu było określenie wpływu pola elektromagnetycznego o ekstremalnie niskiej częstotliwości (ELF-EMF, 50 Hz, 8 mT, 2 godz.) na mechanizmy związane z epigenetyczną regulacją ekspresji genów w błonie śluzowej macicy świni domowej w okresie około-implantacyjnym.W szczególności, wpływ ekspozycji błony śluzowej na ELF-EMF na: 1) potencjał utrzymania i metylacji de novo DNA, 2) modyfikacje histonów, 3) biogenezę mikroRNA oraz 4) indukcję apoptozy i stresu oksydacyjnego.Obecnie obserwujemy wzrost liczby emiterów ELF-EMF obecnych w życiu codziennym. Procesy molekularne zachodzące w macicy w okresie około-implantacyjnym mają kluczowe znaczenie dla uzyskania korzystnych warunków prowadzących do prawidłowego wzrostu i rozwoju zarodków, implantacji i utrzymania ciąży. Dlatego zrozumienie mechanizmów epigenetycznych zachodzących w macicy, które odpowiadają za prawidłowy rozwój dialogu pomiędzy zarodkiem, a macicą jest niezwykle ważne. Wcześniejsze badania wykazały, że ELF-EMF wpływa na poziom ekspresji mRNA i koncentrację białek w macicy, ale mechanizmy molekularne i możliwe konsekwencje ELF-EMF pozostają nieznane.</p
Research on the impact of PWM strategy on current estimation quality in the induction motor drive
No full textResearch concerns the analysis of the influence of chosen pulse-width modulation (PWM) technique on the performance of the current estimator in vector-controlled induction motor drive under current sensor fault. The study was conducted based on the real measuremets from the laboratory test bench.The results confirm that the selection of an appropriate PWM modulation strategy can improve the quality of estimation by up to 36.7% over the commonly used space-vector PWM (SVPWM). The results of the study can be the basis for the development of algorithms to improve the quality of stator current estimation over a wide range of drive operating points.The data contains the results of research on the effect of the type of PWM modulation on the estimation of the phase currents of the stator winding. The measured (mea) and estimated (est) current waveforms in phase A and B in an electric drive with a 1.1 kW induction motor were taken into account. Each of the files is located in a folder whose name indicates the type of PWM modulation used, as well as the speed in percent of the rated speed (rated speed = 1500 rpm). Negative speed values refer to generator operation, while positive ones to motor operation. The research was conducted for a constant load of 50% of the rated torque.File description:isA_mea.xlsx, isB_mea.xlsx: currents measured in phase A and B respectively [p.u.]isA_est.xlsx, isB_est.xlsx: currents estimated in phase A and B respectively [p.u.]RMSE_A.xlsx, RMSE_B.xlsx: estimation error in phase A and B respectively [p.u.]RMSE.xlsx: estimation error for both phases [p.u.]time.xlsx: time vector [s]The abbreviation in files’ names concern the analyzed pulse-with modulation techniques (PWM):Continuous Pulse-Width Modulation techniques:1/4 THIPWM, 1/6 THIPWM – third harmonic injection PWM techniques with amplitude 1/4 and 1/6 of fundamental componentSPWM – sinusoidal PWM techniqueSVM – space-vector PWM techniqueDiscontinuous Pulse-Width Modulation (DPWM) techniques:p120DPWM – (in literature: +120° DPWM) where for 120 degrees of the largest region of voltage of fundamental component there is no modulationm120DPWM – (in literature: −120° DPWM) where for 120 degrees of the lowest region of voltage of fundamental component there is no modulationp60 – (in literature: 60° DPWM) where for 60 degrees of the largest and lowest region of voltage of fundamental component there is no modulationp60m30 – (in literature: 60° (−30°) DPWM) where for 60 degrees shifted by minus 30 degrees of the largest and lowest region of voltage of fundamental component there is no modulationp60p30 – (in literature: 60° (+30°) DPWM) where for 60 degrees shifted by 30 degrees of the largest and lowest region of voltage of fundamental component there is no modulationp30 – (in literature: 30° DPWM) where there are four regions of 30 degrees each where modulation does not occur</p
The incorporation of CsCu2I3 nanocrystals into polydimethylsiloxane matrix for X- and γ-ray scintillators
No full textRaw data was presented in the following manuscript: T. Haposan, M. Makowski, D. Kowal, L.J. Diguna, M.E. Witkowski, S. Mahato, W. Drozdowski, A. Arramel, M.D. Birowosuto, The Incorporation of CsCu2I3 Nanocrystals into Polydimethylsiloxane Matrix for X- and γ-Ray Scintillators, Phys. Status Solidi RRL 19, (2025) 24010298. https://doi.org/10.1002/pssr.202400298.The attached ZIP contains data of radioluminescence (RL) as a function of temperature, pulse height spectra (PHS) and scintillation time profile (STP) of CsCu2I3 nanocrystals embedded in polydimethylsiloxane matrix.</p
Unraveling the role of interfacial charge transfer on photoactivity and anomalous luminescence quenching of V4C3Tx/protonated g-C3N4 heterostructures
No full textThe dataset contains raw data for photoluminescence, electrochemical impedance spectroscopy, current-voltage curves, UV-visible spectra, X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectra of V4C3Tx, PCN, and the V4C3Tx/PCN heterostructure.For more details, please refer to the README file</p
Data used in the article "Proof-of-work versus proof-of-stake coins as possible hedges against green and dirty energy" (Kliber A, Będowska-Sójka B)
No full textThe file contains data used in the article Proof-of-work versus proof-of-stake coins as possible hedges against green and dirty energy" (Kliber A, Będowska-Sójka B), Energy Economics; https://doi.org/10.1016/j.frl.2024.105852</p
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