cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Sabicea grisea Chamisso & Schlechtendal 1829
Creators: name: Araújo, Diogo
name: Alves, Marccus
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Gentianales
Rubiaceae
Sabicea
Sabicea grisea

description: 85. Sabicea grisea Cham. & Schltdl.
Brazil (Amazonas, Pernambuco, Bahia).
Selected Voucher:—Zambana, Araújo et al. 563 (UFP).
SAPINDACEAE
description: Published as part of Araújo, Diogo & Alves, Marccus, 2010, Climbing plants of a fragmented area of lowland Atlantic Forest, Igarassu, Pernambuco (northeastern Brazil), pp. 1-24 in Phytotaxa 8 on page 21, DOI: 10.11646/phytotaxa.8.1.1, http://zenodo.org/record/4893863
MPEC 2023-H180 : COMET C/2022 JK5 (PANSTARRS)
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: COMET C/2022 JK5 (PANSTARRS)

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
An Empirical Study on the Illegitimate Tasks and Its Causal Mechanism at Chinese Social Work Agencies
Creators: name: Meng, Yi
name: Liu, Shuang
name: Li, Jia-Yi
name: Zhao, Xing-Kai
name: Tan, Jing
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Information Systems not elsewhere classified
subject: Science Policy

description: This study proposed and tested a hypothetical model of the causal mechanism of illegitimate tasks in social work agencies. Using a sample of 271 social workers from 55 agencies in a southwestern Chinese city, the results revealed that involuted leadership is an antecedent and job burnout a consequence of illegitimate tasks. The findings supported the hypotheses and contributed to the theory by expanding the conceptual connotation of illegitimate tasks, introducing an operational definition of involuted leadership, testing the causal mechanism of illegitimate tasks, and validating the theory’s applicability in the social work industry and Chinese cultural context. Additionally, the findings provide practical implications for improving leadership practices in social work agencies, enhancing internal industry governance, and informing management reforms in China’s Government Procurement Social Service Projects.
Single-chip dual-band WLAN power amplifierusing inGaP/GaAs HBT
Creators: name: Lin, Chien-Cheng
name: Hsu, Yu-Cheng
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: A single-chipdual-band power amplifiermonolithic microwave integrated circuit (MMIC) operatingat 3.5V single supply has been developed for  both WLAN2.4GHz and 5.2GHz with IEEE 802.11b/g/a standards applications. The MMIC utilizes the process of WINs Corp.with an InGaP/GaAs HBT process. The dual-band poweramplifierconstructed based on the design of adaptive RF bias chokecircuits and proper output matching networks.The proposed WLAN PA chip provides lowcurrentconsumption and high poweradded efficiency. The WLAN-PA is implemented as a two-stage MMIC with activebiasand input pre-matching and inter-stage matching networksintegrated. In addition, the PAis a broadband poweramplifier with above 20dBflat gain betweenthe frequencybands of 2.2GHz to 5.5GHz.
Relativistic Correction to Color Octet J/psi Production at Hadron Colliders
Creators: name: Xu, Guang-Zhi
name: Li, Yi-Jie
name: Liu, Kui-Yong
name: Zhang, Yu-Jie
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The relativistic corrections to the color-octet $J/ψ$ hadroproduction at the Tevatron and LHC are calculated up to $\mathcal{O}(v^2)$ in nonrelativistic QCD factorization frame. The short distance coefficients are obtained by matching full QCD with NRQCD results for the partonic subprocess $g+g\to J/ψ({}^1S_0^{[8]},{}^3S_1^{[8]}, {}^3P_J^{[8]})+g$, $q+\bar{q}\to J/ψ({}^1S_0^{[8]},{}^3S_1^{[8]}, {}^3P_J^{[8]})+g$ and $g+q({\bar{q}})\to J/ψ({}^1S_0^{[8]},{}^3S_1^{[8]}, {}^3P_J^{[8]})+q({\bar{q}})$. The short distance coefficient ratios of relativistic correction to leading order for color-octet states ${^1}S_{0}^{[8]}$, ${^3}S_{1}^{[8]}$, and ${^3}P_{J}^{[8]}$ at large $p_T$ are approximately -5/6, -11/6, and -31/30, respectively, for each subprocess, and it is 1/6 for color-singlet state ${^3}S_{1}^{[1]}$. If the higher order long distance matrix elements are estimated through velocity scaling rule with adopting $v^2=0.23$ and the lower order long distance matrix elements are fixed, the leading order cross sections of color-octet states are reduced by about a factor of $20\sim40%$ at large $p_T$ at both the Tevatron and the LHC. Comparing with QCD radiative corrections to color-octet states, relativistic correction is ignored along with $p_T$ increasing. Using long distance matrix elements extracted from the fit to $J/ψ$ production at the Tevatron, we can find the unpolarization cross sections of $J/ψ$ production at the LHC taking into account both QCD and relativistic corrections are changed by about $20\sim50%$ of that considering only QCD corrections. These results indicate that relativistic corrections may play an important role in $J/ψ$ production at the Tevatron and the LHC.
description: Published version. Figures and Equations are added
Increasing exercise adherence in people with type 2 diabetes and prediabetes using self-monitoring strategies : a feasibility study.
Creators: name: Bailey, Kaitlyn Jennifer
Publisher: name: University of British Columbia
Year: 2015

description: Exercise levels in people with prediabetes and type 2 diabetes (T2D) are poor. Exercise can help this population manage their condition by improving blood glucose (BG) regulation for up to 24hr post-exercise. Self-monitoring is a crucial skill for facilitating health behaviour change, and may be particularly relevant for people with prediabetes and T2D as self-monitoring BG can improve many clinically relevant health markers. The impact of self-monitoring BG to improve exercise adherence is not well established. The purpose of this pilot study was to test the efficacy of a self-monitoring group-based intervention using continuous glucose monitors (CGM) at increasing exercise behaviour in individuals with impaired BG. Thirteen participants with prediabetes or T2D were randomized to an 8-week standard care exercise program (CON; n = 7) or 8-week self-monitoring exercise program (SM; n = 6). Participants in SM were taught how to self-monitor their exercise and BG, goal set, and observe how exercise influences BG using CGM. It was hypothesized that monitoring and being privy to real-time personal BG feedback would facilitate self-monitoring, resulting in greater exercise adherence. RM ANOVA revealed significant Group x Time interactions for self-monitoring (p < .01), goal-setting (p = .01), and self-efficacy to self-monitor (p = .01), such that participants in the SM condition increased significantly more across the 8-week program and at 1-month follow-up compared to the CON condition. Exercise behaviour was not significantly different between conditions, but medium effect sizes suggest the SM condition had greater increases compared to CON. The SM condition also had significantly higher attendance rates to the exercise program (p = .03), and a significantly greater proportion of participants re-registered for an exercise program (p = .048) compared to CON. Following the exercise program, participants in both conditions experienced improvements in mental health related quality of life, waist circumference and fitness (p’s < .05). Findings suggest self-monitoring is a valuable skill for increasing exercise adherence in people with impaired BG control, and provide initial support for the use of CGM to foster self-monitoring.
A dual band (10/16 GHz) p-HEMT VCO
Creators: name: Manan, Vikas
name: Long, Stephen I.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: We report a 0.15  μm p-HEMT dual frequency VCO. The dual frequencies are achieved using a switched-resonator topology. Large devices can be used for switching, as their parasitic capacitance is absorbed into the resonator. The phase noise at 1 MHz offset was  -101 dBc and -92 dBc at 10.6 and 16.3 GHz respectively.
InGaP/GaAs/AlGaAs power DHBT with enhanced linearity near saturation region
Creators: name: Oka, Tohru
name: Fujita, Koichiro
name: Yamashita, Masaharu
name: Twynam, John K.
name: Sakuno, Keiichi
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: This paper describes InGaP/GaAs/AlGaAs power DHBTs with the enhanced linearity near saturation output regions. The DHBT, having compositionally graded AlGaAs collector layers with a -doped layer, effectively improved the nonlinearity of the base-collector capacitance near the knee voltage and, consequently, reduced the distortion at near saturated output power levels. The power DHBT achieved an improvement in linear output power and PAE of 0.7 dBm and 2.5%, respectively, compared to the conventional SHBT, and exhibited an output power of 21.1 dBm and a PAE of 33.5% at an EVM of 5%, measured with 54Mbps 64-QAM-OFDM signals of 5.25 GHz at a supply voltage of 3.3 V.
Die Komedikation von Caspofungin Acetat und Cyclosporin A nach allogener Stammzelltransplantation führt nicht zu verstärkter Hepato- und Nephrotoxizität
Creators: name: Eikam, Martin Michael Eike
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2011
Subjects: subject: Online-Publikation
subject: Hochschulschrift
subject: 615

description: Invasive Pilzinfektionen und unerwünschte medikamentöse Effekte beeinflussen die Mortalität nach allogener Stammzelltransplantation nachhaltig. Aus diesem Grund ist es für den Onkologen unverzichtbar eine optimale antiinfektive Strategie zu entwickeln, die sowohl eine hohe Effektivität als auch geringe Nebenwirkungen auf sich vereint. Als das erste aus der Gruppe der Echinocandine, findet Caspofungin breiten Einsatz in der Therapie von invasiven Mykosen. Retrospektiv analysierte ich die Auswirkungen der Komedikation von Caspofungin Acetat und Cyclosporin A auf die Hepato- und Nephrotoxizität. Hierzu wertete ich die Akten von 20 stammzelltransplantierten Patienten aus. Ich zeichnete die Serumkonzentrationen der ASAT, ALAT, µGT, alk.Phosphatase, Bilirubin, Kreatinin und Harnstoff 72 Stunden bevor, während der Komedikation und nachdem es Teil der Medikation gewesen war, auf. Hierauf berechnete ich deren Mittelwert, Median sowie die dazugehörigen Standardabweichungen. Um eine Signifikanz in den Anstiegen oder Abfällen nachzuweisen zu können benutzte ich den Mann-Whitney-U-Test mit einem Signifikanzniveau von p < 0,05. Um die hepatozelluläre Schädigung einschätzen zu können, errechnete ich den „de Ritis Quotienten“. In der Zusammenschau waren die Erhöhungen der Leberenzyme die ich während der Komedikation beobachtete gering und fielen wieder, nachdem die Caspofungingabe beendet worden war. Diese Ergebnisse decken sich mit anderen veröffentlichten Daten zu diesem Thema. Wie zu erwarten war, konnte ich keine Hinweise für eine durch Caspofungin hervorgerufene oder aggravierte Nephrotoxizität finden.
A novel linearizing technique using dual diode based linearizers for lightweight power amplifiers
Creators: name: KASHIWA, T.
name: OHNISHI, Y.
name: YAMAMOTO, K.
name: OHSHIMA, H.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: A novel way to compensate the distortion of Power Amplifier(PA) modules is presented in this paper.Adiodelinearizerwith an inductor is used to compensate thedistortion of the PA using LDMOS FET and has acharacteristic of a positive phase and a gain expansion.Twodiode-based linearizers are employed to compensate thedistortions. One linearizer compensates the distortion of thephase,mainly.The other compensates the ones of the gainand the phase. It is possible to compensatethe distortion of thePAmoduleusing this linearizing technique even thoughthe driver stage of the PA module has thedistortion.Thisimplies that the PA modules can operate with high efficiencies. In addition, it is possible to achieve light weight PA modules. A modulated spectrum power of 8 dB andanEVMof1.4 % can be improved using the proposed techniques in the PA module when a 16-QAM modulated signal is used at a 42dBm output power and a 3 dB back-off condition.
Chiral Y-junction of Luttinger liquid wires at weak coupling: lines of stable fixed points
Creators: name: Aristov, D. N.
name: Wölfle, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the transport properties of a system of three Luttinger liquid wires (with different interaction strengths g, g_3), connected through a Y-junction (main wire and tunneling tip) threaded by magnetic flux, within the scattering state formalism. The scattering matrix and the matrix of conductances are parametrized by three variables. For these we derive coupled RG equations, up to second order in the interaction. The fixed point structure of these equations is analyzed in detail. For repulsive interaction (g, g_3>0) there is only one stable fixed point, corresponding to the complete separation of the wires. For attractive interaction (g<0 and/or g_3<0) four fixed points are found, whose stability depends on the interaction strength. For special values of the interaction parameters (a) g=0, g_3<0 or (b) g_3+g^2/2=0 and g<0 we find whole lines of stable fixed points. In certain regions of the g-g_3-plane the RG flow is towards a fixed point without chirality, implying that the effect of the magnetic flux is completely screened.
description: extended version, 6 pages, 4 figures
A cost-effective 10 Watt X-band high power amplifier and 1 watt driver amplifier chip-set
Creators: name: De Hek, A.P.
name: Van Der Bent, G.
name: Van Wanum, M.
name: Van Vliet, F.E.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: An X-band power amplifier chip-set for communication and radar applications has been developed and tested. The chip set consists of a two- and three-stage high-power amplifier, which have an output power of 10 Watt over the 8.5 – 10.5 GHz frequency band and a driver amplifier with an output power of more than 1 Watt over the 8.5 – 11.5 GHz frequency band.  The amplifiers have been developed in the 6-inch 0.5 m power pHEMT process (PP50-10) of WIN Semiconductors. The use of this process in combination with the used innovative design approach results in a cost effective chip set, which is competitive in both performance and price with any available  solution.
Advanced Computer Algebra for Determinants
Creators: name: Koutschan, Christoph
name: Thanatipanonda, Thotsaporn "Aek"
Publisher: name: arXiv
Year: 2011
Subjects: subject: Symbolic Computation (cs.SC)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 33F10 (Primary) 15A15, 05B45 (Secondary)

description: We prove three conjectures concerning the evaluation of determinants, which are related to the counting of plane partitions and rhombus tilings. One of them was posed by George Andrews in 1980, the other two were by Guoce Xin and Christian Krattenthaler. Our proofs employ computer algebra methods, namely, the holonomic ansatz proposed by Doron Zeilberger and variations thereof. These variations make Zeilberger's original approach even more powerful and allow for addressing a wider variety of determinants. Finally, we present, as a challenge problem, a conjecture about a closed-form evaluation of Andrews's determinant.
description: 16 pages
A power efficient active K band mixer
Creators: name: Huber, Meik
name: Von Der Mark, Stefan
name: Boeck, Georg
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: An energy efficient K band GaAs-HBT mixer applicable in integrated receiver front ends is presented. For pico cell networks, reduction of energy consumption is a central task. This mixer operates with a power as small as 15.6 mW still providing adequate gain making it in some cases unnecessary to use an amplifier. The mixer provides 13.5 dB power gain at 24.5 GHz using 0.5 dBm LO power. Compared to reported K band mixers employing other architectures, this is an excellent performance.
Somatostatin und Somatostatinrezeptoren im Tränenwegsystem und an der Augenoberfläche
Creators: name: Minsel, Ivonne
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2009
Subjects: subject: Online-Publikation
subject: Hochschulschrift
subject: 615.3
subject: 611

description: Jüngste Untersuchungen zeigen das Vorkommen von Somatostatin (SS) im exokrinen System der Tränendrüse und in der Tränenflüssigkeit. Um nähere Erkenntnisse über die mögliche Bedeutung, das Expressionsmuster und die Regulation von SS und der Somatostatinrezeptoren (hSSTR) an der Augenoberfläche und im Tränenwegsystem zu gewinnen, wurden Untersuchungen mittels RT-PCR, Real-time PCR, Western blot und Immunhistochemie durchgeführt. Außerdem wurde mittels eines Korneadefektmodells der Einfluß von SS auf die korneale Wundheilung von Mäusen untersucht. Die Ergebnisse bestätigen das Vorkommen von SS und der hSSTR1, 2 und 5 an der Augenoberfläche. Nach Stimulation der humanen Kornea- und Konjunktivaepithelzelllinien mit Zytokinen, Bakterienbestandteilen, SS oder VEGF zeigt sich eine Regulation der hSSTR1 und 2. Außerdem konnte gezeigt werden, dass eine Konzentration von 10ng/ml SS die korneale Wundheilung von Mäusen signifikant verbessert. SS wird von Azinuszellen der Tränendrüse gebildet und in die Tränenflüssigkeit abgegeben. Die Ergebnisse deuten auf eine autokrine und parakrine Rolle von SS im Tränenwegsystem und an der Augenoberfläche hin. Des Weiteren implizieren die Befunde eine Bedeutung von SS bei der Regulation der kornealen Angiogenese und als Immunmodulator an der Augenoberfläche.
Electronic Structures of N-doped Graphene with Native Point Defects
Creators: name: Hou, Zhufeng
name: Wang, Xianlong
name: Ikeda, Takashi
name: Terakura, Kiyoyuki
name: Oshima, Masaharu
name: Kakimoto, Masa-aki
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Nitrogen doping in graphene has important implications in graphene-based devices and catalysts. We have performed the density functional theory calculations to study the electronic structures of N-doped graphene with vacancies and Stone-Wales defect. Our results show that monovacancies in graphene act as hole dopants and that two substitutional N dopants are needed to compensate for the hole introduced by a monovacancy. On the other hand, divacancy does not produce any free carriers. Interestingly, a single N dopant at divacancy acts as an acceptor rather than a donor. The interference between native point defect and N dopant strongly modifies the role of N doping regarding the free carrier production in the bulk pi bands. For some of the defects and N dopant-defect complexes, localized defect pi states are partially occupied. Discussion on the possibility of spin polarization in such cases is given. We also present qualitative arguments on the electronic structures based on the local bond picture. We have analyzed the 1s-related x-ray photoemission and adsorption spectroscopy spectra of N dopants at vacancies and Stone-Wales defect in connection with the experimental ones. We also discuss characteristic scanning tunneling microscope (STM) images originating from the electronic and structural modifications by the N dopant-defect complexes. STM imaging for small negative bias voltage will provide important information about possible active sites for oxygen reduction reaction.
description: 40 pages, 2 tables, 16 figures. The analysis of Clar sextets is added. This version is published on PHYSICAL REVIEW B 87, 165401(2013)
Production considerations for GaAs MMICs
Creators: name: Suffolk, J. R.
name: Buck, B. J.
name: Harvey, A. R.
name: Eddison, C. G.
name: Warner, D. J.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1990
Subjects: ING-INF/01 Elettronica

description: Techniques have been studied to enhance the yield of circuits from a fixed, commercially available GaAs MMIC Foundry process and also to facilitate system implementation of the circuits. Three approaches to yield enhancement have been evaluated using an S/C band amplifier and the results are presented. A modified version of the circuit, configured to operate from a single, low-current bias supply, is also described.
Non invasive ultrafast optoelectronic sampling of GaAs devices
Creators: name: Breglio, Giovanni
name: Cutolo, Antonello
name: Zeni, Luigi
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1990
Subjects: ING-INF/01 Elettronica

description: After describing the main characteristics of the electro-optical sampling technique for ultrafast integrated circuits and solid state devices, we discuss the performance of the ultra short pulse laser systems required for the use of this technique. In particular, we briefly describe a new technique for the real time analysis of the stability of this class of lasers.
Untersuchung der Wirkung alternativmedizinischer Verfahren auf die Aktivität der Rheumatoiden Arthritis
Creators: name: Köhler, Nikola
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2011
Subjects: subject: Online-Publikation
subject: Hochschulschrift
subject: 615

description: Ziel war es, die Erfahrungen der Patienten mit einer Rheumatoiden Arthritis (RA- Patienten) mit Diät und alternativen Heilverfahren darzustellen. 259 RA - Patienten wurden in 2 rheumatologischen Praxen und 374 Patienten (Kontrollgruppe) in 1 allgemeinmedizinischen Praxis rekrutiert. Die Patienten beantworteten Fragen zur Krankheitsaktivität und Nutzung alternativer Heilverfahren und deren Effekt auf ihre Erkrankung. Nur ca. 13 % der RA-Patienten haben eine spezielle Rheumadiät durchgeführt oder alternativmedizinische Verfahren angewendet. Bei den naturheilkundlichen Präparaten wurden Brennnesselpräparate und Teufelskralle am häufigsten verwendet. Die am häufigsten angewendeten Naturheilverfahren waren Homöopathie, Akupunktur und Manualtherapie. Die positiven Erfahrungen lagen in der Größenordung von 20 bis 30 %. Das entspricht dem Placebo- Response.
Spectral positivity and Riemannian coverings
Creators: name: Bérard, Pierre
name: Castillon, Philippe
Publisher: name: arXiv
Year: 2012
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: Let $(M,g)$ be a complete non-compact Riemannian manifold. We consider operators of the form $Δ_g + V$, where $Δ_g$ is the non-negative Laplacian associated with the metric $g$, and $V$ a locally integrable function. Let $ρ: (\hat{M},\hat{g}) \to (M,g)$ be a Riemannian covering, with Laplacian $Δ_{\hat{g}}$ and potential $\hat{V} = V \circ ρ$. If the operator $Δ+ V$ is non-negative on $(M,g)$, then the operator $Δ_{\hat{g}} + \hat{V}$ is non-negative on $(\hat{M},\hat{g})$. In this note, we show that the converse statement is true provided that $π_1(\hat{M})$ is a co-amenable subgroup of $π_1(M)$.
description: Final version to appear in the Bulletin of the London Mathematical Society
Polyelectrolyte nanocapsules as modern drug delivery system for lipophilic drug candidates
Creators: name: Nyakas, Claudia
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2012
Subjects: subject: Pharmazeutische Technologie
subject: Nanokapsel
subject: Polyelektrolyt
subject: Online-Publikation
subject: Hochschulschrift
subject: 615

description: Durch Hochdruckhomogenisation und komplexe Koazervation wurden auf Basis von Nanoemulsionen zwölf ölhaltige Nanokapselsysteme, deren feste Kapselwand aus je drei Schichten biokompatibler Polyelektrolyte besteht, für intravenöse oder orale Applikation entwickelt. Die physiko-chemische Charakterisierung mittels Photonenkorrelationsspektroskopie, Laserbeugung, Elektronenmikroskopie, Feldflussfraktionierung und Zetapotential ergab, dass für vier Proben bei homogener, nanoskaliger Größe eine gute Dispersionsstabilität und ein hoher Ölgehalt erzielt wurden. Am Beispiel einer der vier Proben wurde die Kapselwand von drei auf fünf Schichten erweitert und somit verfestigt, wie Rasterkraftmikroskopie und Ultraschallmessungen bestätigten. Elektronenspinresonanzspektroskopie sowie Ultrafiltrationsuntersuchungen belegten, dass die Polyelektrolytnanokapseln unabhängig von der Anzahl der Wandschichten eine schnell freisetzende Arzneiform darstellen. Schließlich konnte durch in vivo Experimente an Mäusen gezeigt werden, dass sie nach oraler Gabe eine systemische Aufnahme verkapselter Wirkstoffe ermöglichen.
description: Based on high-pressure homogenisation and complex coacervation, twelve oil-loaded nanocapsule systems for intravenous or peroral administration were developed by conversion of nanoemulsions into nanocapsules, possessing a three-layered solid capsule shell of biocompatible polyelectrolytes. They were physico-chemically characterised using photon correlation spectroscopy, laser diffraction, electron microscopy, field flow fractionation, and zeta potential. Four samples were successful in terms of homogeneous, nanoscaled size, good dispersion stability, and high oil content. With one successful example, shell solidification could be enhanced by increasing the number of shell layers from three to five which was proven by atomic force microscopy and ultrasonic resonator technology. Independent of the layer numbers, polyelectrolyte nanocapsules displayed a fast-releasing dosage form, as electron paramagnetic resonance spectroscopy and ultrafiltration showed. Finally, in vivo investigations of the physiological fate in mice reflected their potential to allow for systemical uptake of encapsulated drugs after peroral application.
MOESM1 of CdSSe nanowire-chip based wearable sweat sensor
Creators: name: Zhang, Min
name: Guo, Shuai
name: Weller, Dieter
name: Hao, Yan
name: Wang, Xianshuang
name: Ding, Chunjie
name: Chai, Ke
name: Zou, Bingsuo
name: Liu, Ruibin
Publisher: name: figshare
Year: 2019
Subjects: Space Science
Medicine
Cell Biology
Molecular Biology
Environmental Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified

description: Additional file 1: Figure S1. A schematic illustration of the fabrication process of the device. Figure S2. (a): The I-V curves of the sensor under different mechanical pressure in the dark. (b): The dependence of the current on the mechanical pressure at 5Â V bias in the dark field. Figure S3. The I-V curves from repeated humidity sensing in the dark and in the light, respectively. Figure S4. (a): The I-V characteristic curves of the sensor at different concentrations of salt solution under the light. (b): The photocurrent variation under different concentrations at the bias of 5Â V. Figure S5. (a): The recovery process of the sensor after detecting salt solution at the concentration of 30Â g/L. (b): The recovery current of the different concentrations of salt solution. Figure S6. The wearable sensor with different bending degree. Figure S7. The I-V curves of the sensor with different bending degree at different relative humidity. Table S1. Comparison of performance of various wearable sensing mast.
A fast direct solver for structured linear systems by recursive skeletonization
Creators: name: Ho, Kenneth L.
name: Greengard, Leslie
Publisher: name: arXiv
Year: 2011
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65F05, 65F50, 65R20, 65Y15, 65Z05

description: We present a fast direct solver for structured linear systems based on multilevel matrix compression. Using the recently developed interpolative decomposition of a low-rank matrix in a recursive manner, we embed an approximation of the original matrix into a larger, but highly structured sparse one that allows fast factorization and application of the inverse. The algorithm extends the Martinsson/Rokhlin method developed for 2D boundary integral equations and proceeds in two phases: a precomputation phase, consisting of matrix compression and factorization, followed by a solution phase to apply the matrix inverse. For boundary integral equations which are not too oscillatory, e.g., based on the Green's functions for the Laplace or low-frequency Helmholtz equations, both phases typically have complexity O(N) in two dimensions, where $N$ is the number of discretization points. In our current implementation, the corresponding costs in three dimensions are $O(N^{3/2})$ and $O(N \log N)$ for precomputation and solution, respectively. Extensive numerical experiments show a speedup of $\sim 100$ for the solution phase over modern fast multipole methods; however, the cost of precomputation remains high. Thus, the solver is particularly suited to problems where large numbers of iterations would be required. Such is the case with ill-conditioned linear systems or when the same system is to be solved with multiple right-hand sides. Our algorithm is implemented in Fortran and freely available.
description: 26 pages, 13 figures, 7 tables; accepted by SIAM J Sci Comput
From the foundry to the model - A fully automated system for on-wafer MESFET characterization
Creators: name: Ferrero, A.
name: Pisani, U.
name: Scopelliti, L.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1990
Subjects: ING-INF/01 Elettronica

description: The fabrication of microwave integrated circuits requires several tests to be carried out on wafer in order to check the effectiveness of the process. That is accomplished by measuring some param­eters of a small group of test devices named PCM (Process Control Monitor), located on the same wafer and fabricated with the same process. In this paper a system is presented which integrates in a single workstation the experimental procedures, and the data processing which allow to carry out on line the more significant parameters of microwave GaAs FET. In order to achieve significant results in MMIC device modeling, a proper design of the PCM layout is required. This is accomplished by using special metallized patterns on GaAs, for the network analyzer calibration, which allow to define the reference planes very close to the active area of the device. A software package drives the user through all the operations up to the development of a small signal MESFET model, so that the procedure overcomes the peculiarity of laboratory experiment and gains the characteristic of a more general and operative tool, useful for recurrent applications.
Results from electrical caracterization and reliability tests of GaAs/GaAlAs HEMT's
Creators: name: Brambilla, P.
name: Magistrali, F.
name: Sangalli, M.
name: Canali, C.
name: Zanoni, E.
name: Castellaneta, G.
name: Marchetti, F.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1990
Subjects: ING-INF/01 Elettronica

description: GaAs/GaAlAs HEMT's are rapidly replacing conventional FET's for applications where high gain and low noise figure at high frequencies are needed; for this reason we began a qualification program on them, with the goal of evaluating the possible criticalities that could affect long term performances.  The program includes electrical characterization, thermal storages and operating life-tests on commercially available devices, coming from four different manufacturers. During the electrical characterization we especially focused on "kink" effect, concluding that it should be ascribed to trapping/detrapping mechanisms in the AlGaAs layer; even if this phenomenon is peculiar of HEMT's, we found no evidence of any possible detrimental effect on reliability. Thermal storage at 250 °C caused Schottky barrier degradation in the devices with Ni or Ti used as interdiffusion barrier between Al  and GaAs; these degradations affect devices performances but cannon be considered peculiar of HEMT's technology, as they were found in low noise FET's too. During biased life-test at Tch = 175 °C, no significant parametric degradation was found up to 2500 test hours.
Automated test-set for accurate  measurements  of minimum noise figure of GaAs FETs
Creators: name: Garbo, G.
name: Martines, G.
name: Sannino, M.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1990
Subjects: ING-INF/01 Elettronica

description: A new automated method for the determination of input-termination optimum-condition of low noise microwave GaAs FETs is presented. Since the method is fully automated strong reduction of time-consumption is guaranteed; in addition the method is also accurate because all the effects which influences the noise figure measurements are taken into account. It is opinion of the Authors that both the test-set and the relevant software are unique.
Transistor specifications and substrate defect's in GaAs test circuits
Creators: name: Fillard, J.P.
name: Castagné, M.
name: Gall, P.
name: Bonnafe, J.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1990
Subjects: ING-INF/01 Elettronica

description: It has been known for years that defects in GaAs wafers induce large perturbations and scattering in the specifications of transistors. Japanese workers (Y Nanishi) have performed extended investigations on this correlation using bidimensional mapping techniques whereas other people have used the so called Dense Row Pattern or matrix FET areas method. In this communication we present new results related to the inspection of microprecipitates revealed by Laser Scanning Tomography (LST). This high sensitivity technique allows us to obtain images of micropecipitates in the bulk material with especially high resolution and narrow sectioning specifications. It has been extended to the region underlying the surface just beneath the transistor channel. A statistical evaluation of the threshold voltage and the side gating effect has been studied and correlated with the neighbouring microprecipicates.
Non-invasive characterization of in situ forming implants
Creators: name: Kempe, Sabine
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2012
Subjects: subject: Online-Publikation
subject: Hochschulschrift
subject: Pharmazeutische Technologie
subject: 615

description: In dem letzten Jahrzehnt sind in situ bildende Implantate (ISBI) vermehrt in den Fokus des wissenschaftlichen Interesses gerückt. Trotz der intensiven Forschung auf dem Gebiet, ist da Wissen über die detaillierten Mechanismen der in vivo Implantat-Bildung begrenzt. Um dieses Wissen zu erweitern beschäftigte sich diese Arbeit mit der kontinuierlichen und nicht-invasiven in vitro und in vivo Charakterisierung der Implantat-Bildungsprozesse. Dazu wurden die nicht-invasiven Analyse-Verfahren der Elektronen Paramagnetik Resonanz (EPR) Spektroskopie, Benchtop Magentreonanztomografie und NMR Relaxometrie kombiniert um eine vollständigeres Verständnis der Bildung und des Abbaus von ISBIs zu erhalten. Des Weiteren wurden erstmalig Veränderungen der Mikro-pH-Werte von desintegrierenden ISBI mittels EPR-Spektroskopie verfolgt. Aufgrund ihrer pharmazeutischen Relevanz lag dabei der Fokus bei ISBI gebildet über Phasentrennung durch Desolvatation und Änderungen der Umgebungstemperatur.
Searching for Gravitational Waves with a Geostationary Interferometer
Creators: name: Tinto, M.
name: de Araujo, J. C. N.
name: Aguiar, O. D.
name: Alves, M. E. S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We analyze the sensitivities of a geostationary gravitational wave interferometer mission operating in the sub-Hertz band. Because of its smaller armlength, in the lower part of its accessible frequency band ($10^{-4} - 2 \times 10^{-2}$ Hz) our proposed Earth-orbiting detector will be less sensitive, by a factor of about seventy, than the Laser Interferometer Space Antenna (LISA) mission. In the higher part of its band instead ($2 \times 10^{-2} - 10$ Hz), our proposed interferometer will have the capability of observing super-massive black holes (SMBHs) with masses smaller than $\sim 10^{6}$ M$_{\odot}$. With good event rates for these systems, a geostationary interferometer will be able to accurately probe the astrophysical scenarios that account for their formation.
description: 33 pages, 9 eps figures
Sequencing and analysis of the complete mitochondrial genome of Eothenomys eleusis Thomas 1911 from China and its phylogenetic analysis
Creators: name: Zhu, Liu
name: Bi, Zhong-Dan
name: Qian, Hong-An
name: Mei, Xiu-Feng
name: Zhao, Jing-Yu
name: Zhao, Xin-Xu
name: Chen, Huan
name: Zhang, Jun-Sheng
name: Piao, Zhong-Wan
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Evolutionary Biology
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: The complete mitogenome sequence of Eothenomys eleusis Thomas 1911 was determined using PCR. A circular double-stranded structure makes up the mitochondrial genome of E. eleusis. The complete length of the mitochondrial genome is 16,419 bp. The mitochondrial genome of E. eleusis included 13 protein-coding genes, 1 control region, 22 tRNA genes, 2 rRNA genes and 1 origin of L strand replication. The total base composition of E. eleusis mitochondrial genome was A (32.6%), T (26.3%), G (13.6%) and C (27.5%). We found significant A-T skew in base composition, especially in control regions and protein-coding genes. E. eleusis was supported by bootstrap values of 100%. This study verifies the evolutionary status of E. eleusis in Myodini tribe of Cricetidae at the molecular level. The mitochondrial genome would be a significant supplement for the E. eleusis genetic background.
Local electronic nematicity in the one-band Hubbard model
Creators: name: Fang, Kun
name: Fernando, G. W.
name: Kocharian, A. K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Nematicity is a well known property of liquid crystals and has been recently discussed in the context of strongly interacting electrons. An electronic nematic phase has been seen by many experiments in certain strongly correlated materials, in particular, in the pseudogap phase generic to many hole-doped cuprate superconductors. Recent measurements in high $T_c$ superconductors has shown even if the lattice is perfectly rotationally symmetric, the ground state can still have strongly nematic local properties. Our study of the two-dimensional Hubbard model provides strong support of the recent experimental results on local rotational $C_4$ symmetry breaking. The variational cluster approach is used here to show the possibility of an electronic nematic state and the proximity of the underlying symmetry-breaking ground state within the Hubbard model. We identify this nematic phase in the overdoped region and show that the local nematicity decreases with increasing electron filling. Our results also indicate that strong Coulomb interaction may drive the nematic phase into a phase similar to the stripe structure. The calculated spin (magnetic) correlation function in momentum space shows the effects resulting from real-space nematicity.
Grating formation by wet chemical etching for the fabrication of ultra-low threshold laser structures
Creators: name: Pellegrino, S.
name: Boschis, L.
name: Daste, P.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1990
Subjects: ING-INF/01 Elettronica

description: HBr/HNO3/H2O etching solutions have been extensively investigated regarding their  properties  for  submicrometer  patterning  of  III-V  compound semiconductors. The chemical behaviour of the solution itself was clarified and the etching properties and mechanism were investigated. High quality gratings for Dynamic Single Mode (DSM) Laser were fabricated and extremely pure emission spectra have been recorded.
Remarks on the boundary set of spectral equipartitions
Creators: name: Bérard, Pierre
name: Helffer, Bernard
Publisher: name: arXiv
Year: 2012
Subjects: subject: Spectral Theory (math.SP)
subject: FOS: Mathematics

description: Given a bounded open set $Ω$ in $\mathbb{R}^n$ (or a compact Riemannian manifold with boundary), and a partition of $Ω$ by $k$ open sets $ω_j$, we consider the quantity $\max_j λ(ω_j)$, where $λ(ω_j)$ is the ground state energy of the Dirichlet realization of the Laplacian in $ω_j$. We denote by $\mathfrak{L}_k(Ω)$ the infimum of $\max_j λ(ω_j)$ over all $k$-partitions. A minimal $k$-partition is a partition which realizes the infimum. The purpose of this paper is to revisit properties of nodal sets and to explore if they are also true for minimal partitions, or more generally for spectral equipartitions. We focus on the length of the boundary set of the partition in the 2-dimensional situation.
description: Final version to appear in the Philosophical Transactions of the Royal Society A
Protocol conformance checking of component-based systems and service-oriented architectures
Creators: name: Both, Andreas
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2010
Subjects: subject: Software Engineering
subject: Serviceorientierte Architektur
subject: Online-Publikation
subject: Hochschulschrift
subject: 005.14
subject: 000

description: Im Rahmen dieser Arbeit wurde ein Verfahren entwickelt, das die vollautomatische Verifikation von Komponenten-Protokollen (z. B. Geschäftsprozessen) von Komponenten-Software (insbesondere auch SOA) erlaubt. In den Protokollen wird festgelegt, welche Aufrufe (z. B. Reihenfolge, Wiederholungen) der angebotenen Komponenten-Schnittstellen erlaubt sind. Zur Protokollprüfung werden die Komponenten-Abstraktionen herangezogen. Hierbei ist es erstmals gelungen, eine Repräsentation zu nutzen, die unbeschränkte Parallelität und unbeschränkte Rekursion darstellen kann. Zur Verifikation wurde ein automatisches Verfahren definiert. Dieses stellt die Anwendbarkeit während der Softwareentwicklung sicher, u. a. bleibt auch bei der Verifikation der Komponenten-Charakter erhalten. Außerdem ist sichergestellt, dass das Verhalten der Software konservativ erfasst wird. Folglich kann jede vorhandene Protokollverletzung gefunden werden. Es wurde ein wichtiger Beitrag zur Überprüfung von Software zur Erstellungszeit geleistet, sodass diese bereits vor der Auslieferung auf Fehler geprüft werden kann.
Performance evaluation of a MWQ all optical modulator
Creators: name: Bava, G.P.
name: Debernardi, P.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1990
Subjects: ING-INF/01 Elettronica

description: Optically controlled Multiple Quantum Well (MWQ) modulators promise to be of great interest for all optical data processing. In this paper we analyze a device, based on a GaAs/AlAs MQW structure, whose prin­ciple of operation depends on the controlled excitonic absorption by means of free carrier generation. Such a device, experimentally tested in [1,2,3], is able to give a modulation depth close to one; its operation frequency is limited by carrier lifetime up to about some ten megahertz and it can be promising for high speed parallel processing. The numerical results show a good agreement with experimental data reported in [1],
Analysis of Buffer Starvation with Application to Objective QoE Optimization of Streaming Services
Creators: name: Xu, Yuedong
name: Altman, Eitan
name: El-Azouzi, Rachid
name: Haddad, Majed
name: Elayoubi, Salaheddine
name: Jimenez, Tania
Publisher: name: arXiv
Year: 2011
Subjects: subject: Performance (cs.PF)
subject: Multimedia (cs.MM)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Our purpose in this paper is to characterize buffer starvations for streaming services. The buffer is modeled as an M/M/1 queue, plus the consideration of bursty arrivals. When the buffer is empty, the service restarts after a certain amount of packets are \emph{prefetched}. With this goal, we propose two approaches to obtain the \emph{exact distribution} of the number of buffer starvations, one of which is based on \emph{Ballot theorem}, and the other uses recursive equations. The Ballot theorem approach gives an explicit result. We extend this approach to the scenario with a constant playback rate using Tàkacs Ballot theorem. The recursive approach, though not offering an explicit result, can obtain the distribution of starvations with non-independent and identically distributed (i.i.d.) arrival process in which an ON/OFF bursty arrival process is considered in this work. We further compute the starvation probability as a function of the amount of prefetched packets for a large number of files via a fluid analysis. Among many potential applications of starvation analysis, we show how to apply it to optimize the objective quality of experience (QoE) of media streaming, by exploiting the tradeoff between startup/rebuffering delay and starvations.
description: 9 pages, 7 figures; IEEE Infocom 2012
Fitting quotients of finitely presented abelian-by-nilpotent groups
Creators: name: Groves, J. R. J.
name: Strebel, Ralph
Publisher: name: arXiv
Year: 2011
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F16

description: We show that every finitely generated nilpotent group of class 2 occurs as the quotient of a finitely presented abelian-by-nilpotent group by its largest nilpotent normal subgroup.
description: This second version takes into account the suggestions by the referee; 11 pages
Identity, home, and loss in Goran Vojnović’s Čefurji Raus! (Southern Scum go Home!)
Creators: name: Grašič, Špela
Publisher: name: University of British Columbia
Year: 2014

description: “Identity, home, and loss in Goran Vojnović’s Čefurji raus!” examines how popular Slovene writer Goran Vojnović’s 2008 novel Čefurji Raus! (trans. 2012) reconceptualizes the self/other divide between the relatively homogeneous Slovene majority and diasporic Fužine community, which lives in Slovenia’s capital city Ljubljana and is comprised largely of immigrants from the former republics of the ex-Yugoslavia. More specifically, this work explores how the two communities exist in a continuum of apparatuses, for example discursive, institutional, and state apparatuses, that are themselves encompassed by an overarching trauma apparatus. Here, the paper discusses etymological and discursive references to past traumatic historical events as well as the narrator-protagonist’s Marko Đorđić direct references to the more recent Yugoslav Wars. The paper then goes on to address common Slovene responses to the novel. The paper concludes by suggesting that the novel is successful in helping individuals and communities work through stereotypes and xenophobia linked to trauma because, as a non-didactic or confrontational tool, the novel can serve to gently invite the reader into an experience of discomfort and uncertainty he or she may be unwilling or unable to engage with directly. In this way, the paper argues, Vojnović’s novel plays or can be used to play a key role in helping the Slovene communities work through, or perhaps more accurately, acknowledge and “sit with” their feelings of pain, discomfort, mistrust, and hate. Vojnović’s novel produces enough discomfort to cause reflection, but not enough to alienate or directly blame the reader. In doing so, Čefurji Raus! destabilizes the emotional response to the other constructed by our prejudices and ideology.