cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A fully-integrated complementary metal-oxide semiconductor receiver with avalanche photodetector
Creators: name: Nayak, Spoorthi Gopalakrishna
Publisher: name: University of British Columbia
Year: 2019

description: Optoelectronic links play a key role in data-center, high-performance computing, sensor and biological applications. Photodetectors (PDs) are used at the front end of every optoelectronic receiver (RX). Traditionally, PDs are fabricated in expensive technologies to enhance their performance. However, wirebonding an external PD to a complementary metal-oxide-semiconductor (CMOS) RX or flip-chip assembly results in several issues – increase in manufacturing and packaging cost, possible decrease in yield, additional packaging parasitics degrading the sensitivity of the RX, crosstalk between the bondwires degrading RX performance, requirement for electro-static discharge (ESD) devices, etc. Some of the above problems can be surmounted by fabricating the PD in a CMOS process. However, CMOS PDs have very low responsivity. To improve the responsivity, the PD can be operated in the avalanche region where it has a higher current gain. But there are two major concerns – first, Avalanche PDs (APDs) require high bias voltage for its operation, and second, it is very sensitive to variations in operating conditions. Degradation in the APD performance can reduce RX bandwidth and sensitivity. In this thesis, we present an opto-electrical RX which incorporates on-chip APD, bias generation and stabilization for 850-nm optoelectronic interconnect applications. The proposed receiver consists of CMOS-APD, transimpedance amplifier (TIA), main amplifiers, offset correction loop and 50Ω buffers in the high speed path. APDs are designed and measured to have a -3 dB bandwidth (BW) of 3.5 GHz in 130nm CMOS process, and 6 GHz BW in 65 nm CMOS process, respectively. The electrical -3dB BW of RX, designed and measured in 130nm CMOS process, is approximately 4.5 GHz. A fully integrated APD-RX system is implemented in 130 nm CMOS process that also comprises of a control loop consisting of an analog-to-digital converter (ADC), synthesized controller, digital-to-analog converter (DAC) and voltage booster. The voltage booster biases the APD with a voltage higher than nominal supply voltages in CMOS, and the control loop stabilizes this bias voltage from temperature variations. On-chip APD based RX with bias generation and stabilization have tremendous potential in optoelectronic links due to inherent advantages of high gain, low cost, reduced ground-bounce and bond-wire parasitics.
Gender Action Plan
Creators: name: Karin, Grasenick
Publisher: name: Zenodo
Year: 2021
Subjects: Gender, Diversity, Equal Opportunities, Action Plan

description: The Gender Action Plan is a required document and Milestone for SGA3. It identifies key measures to enhance equal opportunities and a better gender balance for the HBP. It is based on the Gender Action Plan for SGA2, reviews from the European Commission, feedback from the HBP Directorate and suggestions by the Diversity and Equal Opportunities Committee.
Diagonalizing the genome I: navigation in tree spaces
Creators: name: Devadoss, Satyan L.
name: Morava, Jack
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Geometry (math.AG)
subject: Geometric Topology (math.GT)
subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Mathematics
subject: FOS: Biological sciences
subject: 14H10, 92B10, 16E50

description: The orientable cover of the moduli space of real genus zero algebraic curves with marked points is a compact aspherical manifold tiled by associahedra, which resolves the singularities of the space of phylogenetic trees. The resolution maps planar metric trees to their underlying abstract representatives, collapsing and folding an explicit geometric decomposition of the moduli space into cubes. This decomposition endows the resolving space with an interesting canonical pseudometric. The second part of this paper defines a related (stacky) resolution of a space of real quadratic forms, and suggests, perhaps without much justification, that systems of oscillators parametrized by such objects may provide useful models in genomics.
description: 21 pages, 19 figures
AUTONOMOUS GUIDANCE AND NAVIGATION FOR RENDEZVOUS UNDER UNCERTAINTY IN CISLUNAR SPACE
Creators: name: Qi, Daniel Congde
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: classificationCode: 400703
subject: Autonomous vehicle systems
classificationCode: 400705
subject: Control engineering
classificationCode: 400199
subject: Aerospace engineering not elsewhere classified

description: The future of the global economy lies in space. As the economic and scientific benefits from space become more accessible and apparent to the public, the demand for more spacecrafts will only increase. However, simply using the current space architecture to sustain any major activities past low Earth orbit is infeasible. The limiting factor of relying on ground operators via the Deep Space Network will blunt future growth in cislunar space traffic as the bandwidth is insufficient to satisfy the needs of every spacecraft in this domain. For this reason, spacecrafts must begin to operate autonomously or semi-autonomously for operators to be able to manage more missions at a given time. This thesis focuses on the guidance and navigation policies that could help vehicles such as logistical or resupply spacecrafts perform their rendezvous autonomously. It is found that using GNSS signals and Moon-based optical navigation has the potential to help spacecrafts perform autonomous orbit determination in near-Moon trajectories. The estimations are high enough quality such that a stochastic controller can use this navigation solution to confidently guide the spacecraft to a target within a tolerance before proximity operations commence. As the reliance on the ground is shifted away, spacecrafts would be able to operate in greater numbers outside of Earth's lower orbits, greatly assisting humanity's presence in space.
Karl Hegel
Creators: name: Stutz, Ulrich
Publisher: name: Zentralbibliothek Zürich
Year: 1902
Subjects: subject: 920 Biografien, Genealogie, Insignien
subject: Nachruf
subject: Hegel, Karl von

description: Sonderdruck aus der Zeitschrift der Savigny-Stiftung für Rechtsgeschichte Band XXIII. Germanistische Abtheilung
Semiclassical Analysis of the 3d/3d Relation
Creators: name: Terashima, Yuji
name: Yamazaki, Masahito
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We provide quantitative evidence for our previous conjecture which states an equivalence of the partition function of a 3d N=2 gauge theory on a duality wall and that of the SL(2,R) Chern-Simons theory on a mapping torus, for a class of examples associated with once-punctured torus. In particular, we demonstrate that a limit of the 3d N=2 partition function reproduces the hyperbolic volume and the Chern-Simons invariant of the mapping torus. This is shown by analyzing the classical limit of the trace of an element of the mapping class group in the Hilbert space of the quantum Teichmuller theory. We also show that the subleading correction to the partition function reproduces the Reidemeister torsion.
description: 23 pages, 4 figures; v2: typos corrected, published in PRD
Visible light photooxidation of nitrate: the dawn of a nocturnal radical
Creators: name: Hering, Thea
name: Slanina, Tomas
name: Hancock, A.
name: Wille, U.
name: König, Burkhard
Publisher: name: Universität Regensburg
Year: 2015
Subjects: subject: Open Access Komponente aus der Allianzlizenz
subject: 540 Chemie

description: Highly oxidizing nitrate radicals (NO3°) are easily accessed from readily available nitrate salts by visible light photoredox catalysis using a purely organic dye as the catalyst and oxygen as the terminal oxidant. The interaction of the excited catalyst and nitrate anions was studied by spectroscopic methods to elucidate the mechanism, and the method was applied to the NO3° induced oxidation of alkynes and alcohols.
Time constrained shortest paths in stochastic and dynamic transportation networks
Creators: name: Kumar, Deepak
Publisher: name: The University of Texas at Austin
Year: 2004
Subjects: Shortest path problems
Dynamic transportation network

description: This thesis develops methodologies for solving constrained shortest path problems in dynamic and random conditions. Due to the randomness of the network, the decisions need to account for uncertainty of the future real-time network state. Currently the randomness of the arc attributes is not taken into consideration. In this thesis, the intent is to develop methodologies for finding best paths when the arc attributes are uncertain, and change with time. Modified label correcting algorithms are developed for several new variations of the constrained stochastic dynamic shortest path problem where the objective is to minimize the expected cost subject to a specified constraint on the travel time of the path. The constraint can be placed on the expected travel time of the path, or on the cumulative probability of experiencing a maximum travel time. Unlike deterministic networks, in which a single minimum cost path can be determined between an origin and a destination, several paths may each have some positive probability of having the least cost for some realization of the network when the arc times and costs are stochastic and thus, a set of Pareto-optimal paths can be generated. Multiple variations are also examined when considering the FIFO nature of travel times in the network. The correctness of the proposed algorithms is proved. Extensive numerical experiments are conducted to access the performance of these procedures. Also some of the instances are discussed where this problem has practical significance
Mono-substituted molybdenium preyssler heteropolyacid: An ecofriendly photocatalyst for the syntheses of gold nanoparticles in solution and titanium dioxide surface with excellent photoactivity in combination with titanium dioxide
Creators: name: Mommahed Heravi, Majid
name: Bamoharram, Fatemeh F.
name: Kadkhodaei, Saideh
name: Ayati, Ali
name: Baharara, Javad
Publisher: name: figshare
Year: 2022
Subjects: subject: 30302 Nanochemistry and Supramolecular Chemistry
subject: FOS: Chemical sciences
subject: 30203 Inorganic Green Chemistry
subject: 30701 Quantum Chemistry
subject: 39904 Organometallic Chemistry
subject: Organic Chemistry
subject: 30502 Natural Products Chemistry
subject: 30599 Organic Chemistry not elsewhere classified
subject: Computational Chemistry
subject: 30205 Non-metal Chemistry
subject: Nuclear Chemistry
subject: 30504 Organic Green Chemistry
subject: 30303 Optical Properties of Materials

description: Gold nanoparticles were synthesized, using a straightforward photoreduction protocol in the presence of mixedaddenda Preyssler heteropolyacid, H14[NaP5W29MoO110], (PMo). It acts as a reductive agent, as well as a photocatalyst and stabilizing agent. The obtained results showed that the construction rate, morphology and the size of the gold nanoparticles strongly depend on the volume of propan-2-ol amount, used as solvent in the reaction. The shapes of the synthesized gold nanoparticles in the low volume of the solvent were almost uniform spheres with the size of 40-60 nm. The morphologies of the gold nanoparticles in higher volume of the same solvent were found to involve a mixture of triangular, tubular, pentagonal and hexagonal structures along with spheres in range of 5-30 nm. Besides, the ability of the PMo as reductive agent for the syntheses of gold nanoparticles onto the surface of TiO2via photochemical technique was investigated. The results showed that, PMo as a reducing catalytic linker could be bound onto titanium dioxide for syntheses of the desired gold nanoparticles. The synthesized gold nanoparticles and nanocomposites were characterized by TEM, XRD, SEM, UV and FTIR techniques. The photocatalytic activity of the synthesized nanocomposite was measured by photodegradation of the organic dye “malachite green” under UV-Vis light and was found to be excellent.
Deterministic source of a train of indistinguishable single-photon pulses with single-atom-cavity system
Creators: name: Gogyan, A.
name: Guérin, S.
name: Jauslin, H. -R.
name: Malakyan, Yu.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a mechanism to produce indistinguishable single-photon pulses on demand from an optical cavity. The sequences of two laser pulses generate, at the two Raman transitions of a four-level atom, the same cavity-mode photons without repumping of the atom between photon generations. Photons are emitted from the cavity with near-unit efficiency in well-defined temporal modes of identical shapes controlled by the laser fields. The second order correlation function reveals the single-photon nature of the proposed source. A realistic setup for the experimental implementation is presented.
description: 5 pages, 3 figures, submitted to Phys. Rev. A
String effects in Yang-Mills theory
Creators: name: Pepe, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study some features of the confining string connecting a quark-anti-quark pair in Yang-Mills theory. Monte Carlo investigations of the flux tube between two static quarks in the fundamental representation show that its thickness increases with the separation of the sources. The collected numerical data in (2+1)-d SU(2) Yang-Mills theory are in very good quantitative agreement with the next-to-leading order formula derived from the systematic low-energy effective theory of the confining string. At zero temperature, we observe the predicted logarithmic broadening. At finite and low temperature, the flux tube thickness is expected to broaden linearly. We also verify that prediction, finding an excellent agreement with the analytic expression. No adjustable parameter has been used to fit the numerical data. Then we investigate the confining strings connecting color sources in larger representations of the gauge group. Concerning stable strings -- the k-strings -- we study the Luscher term of the fundamental string and of the 2-string in (2+1)-d SU(4) Yang-Mills theory. We find that, at large separation between the two static sources, the coefficient of the Luscher term of the 2-string appraoches the value -pi/24. However, at intermediate distances, there are relevant deviations. This result may suggest that, for SU(N) at large N, a different intermediate string regime could set in. For unstable strings, in (2+1)-d SU(2) Yang-Mills theory we investigate the decay between two different string states and the multiple decays of the confining string connecting color sources in large representations. The multiple decays result from the progressive partial screening of the color sources.
description: Plenary talk at the 28th International Symposium on Lattice Field Field: Lattice 2010, Villasimius, Sardinia, Italy
Supernova Discoveries 2010-2011: Statistics and Trends
Creators: name: Gal-Yam, Avishay
name: Mazzali, Paolo
name: Manulis, Ilan
name: Bishop, David
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have inspected all supernova discoveries reported during 2010 and 2011 (538 and 926 events, respectively). We examine the statistics of all discovered objects, as well as those of the subset of spectroscopically-confirmed events. In these two years we see the rise of wide-field non-targeted supernova surveys to prominence, with the largest numbers of events reported by the CRTS and PTF surveys (572 and 393 events in total respectively, contributing together 74% of all reported discoveries in 2011), followed by the integrated contribution of numerous amateurs (184 events). Among spectroscopically-confirmed events the PTF (393 events) leads, followed by CRTS (170 events), and amateur discoveries (144 events). Traditional galaxy-targeted surveys, such as LOSS and CHASE, maintain a strong contribution (86 and 61 events, respectively) with high spectroscopic completeness (~90% per cent). It is interesting to note that the community managed to provide substantial spectroscopic follow-up for relatively brighter amateur discoveries (=16.5 mag), but significant less help for fainter (and much more numerous) events promptly released by the CRTS (=18.6 mag). Inspecting discovery magnitude and redshift distributions we find that PS1 discoveries have similar properties (=21.6 mag, =0.23) to events found in previous seasons by cosmology-oriented projects (e.g., SDSS-II), while PTF (=19.2 mag, =0.095) and CRTS (=18.6 mag, =0.049) populate the relatively unexplored phase space of faint SNe (>19 mag) in nearby galaxies (mainly PTF), and events at 0.05
description: PASP, in press
Высшее образование сегодня,Выпуск 1 2020
Creators: name: Автономная некоммерческая организация высшего образования «Российский новый университет»
Publisher: name: Автономная некоммерческая организация высшего образования «Российский новый университет»
Year: 2020

description: Высшее образование сегодня,Выпуск 1 2020
Magnetic quantum ratchet effect in Si-MOSFETs
Creators: name: Ganichev, Sergey
name: Tarasenko, Sergey
name: Karch, Johannes
name: Kamann, Josef
name: Kvon, Z. D.
Publisher: name: Universität Regensburg
Year: 2014
Subjects: subject: Condensed matter: electrical, magnetic and optical; Electronics and devices; Semiconductors; Surfaces, interfaces and thin films
subject: 530 Physik
subject: 85.30.Tv
subject: 73.40.Qv
subject: 78.40.Fy

description: We report on the observation of magnetic quantum ratchet effect in metal-oxide-semiconductor field-effect-transistors on silicon surface (Si-MOSFETs). We show that the excitation of an unbiased transistor by ac electric field of terahertz radiation at normal incidence leads to a direct electric current between the source and drain contacts if the transistor is subjected to an in-plane magnetic field. The current rises linearly with the magnetic field strength and quadratically with the ac electric field amplitude. It depends on the polarization state of the ac field and can be induced by both linearly and circularly polarized radiation. We present the quasi-classical and quantum theories of the observed effect and show that the current originates from the Lorentz force acting upon carriers in asymmetric inversion channels of the transistors.
All-cause and cause-specific mortality risks in granulomatosis with polyangiitis
Creators: name: Tan, Ju Ann
Publisher: name: University of British Columbia
Year: 2018

description: Background Granulomatosis with polyangiitis (GPA) is a form of ANCA-associated vasculitis (AAV), a heterogenous group of small vessel vasculitides associated with anti-neutrophil cytoplasmic antibodies (ANCA). There is still significant disease mortality despite advances in treatment of GPA. Furthermore, longitudinal data on secular trends in GPA mortality are scarce and most are from selected populations. We aim to determine all-cause and cause-specific mortality risks in GPA patients compared to the general population, as well as to estimate the difference in mortality risks in GPA patients between 1997-2004 and 2005-2012. Methods Chapter 2 was a systematic review and meta-analysis of observational studies in GPA. An extensive literature search was performed on the EMbase and Medline databases. Data was extracted for a pooled meta-analysis of standardized mortality ratios (SMR). Heterogeneity between studies was assessed using I2. Chapter 3 was a matched cohort population-based study using an administrative health database, comparing incident GPA cases and non-GPA individuals randomly selected from the general population. Primary outcome was death during the follow up period, 1997-2012. Cohorts were subdivided to early cohort (1997-2004) and late cohort (2005-2012). Hazard ratios (HR) were estimated using Cox proportional hazard regression models. Results From the meta-analysis, we found a 2.7-fold increased risk of death in AAV patients when compared to the general population. Subgroup analyses showed that mortality risks were higher in older cohorts with a trend towards improvement over time (i.e., midpoint of enrolment periods 1980-1993 and 1994-1999, vs. 2000-2005). From the matched cohort study, 370 GPA patients and 3,700 non-GPA individuals were included, with 68 and 310 observed deaths, respectively. Overall, the age, sex and entry time-adjusted all-cause mortality HR in the GPA cohort was 3.12 (95%CI 2.35-4.14). There was excess mortality from CVD causes, but not cancer, in the GPA cohort. All-cause mortality significantly improved between the early and late GPA cohorts (HR 5.61 vs. 2.33, respectively; p = 0.017). Conclusion There was a 3-fold increase in all-cause mortality risks in GPA patients, with excess mortality from CVD causes. There was a significant improvement in all-cause mortality risks over time but remained elevated compared to the general population.
Investigations of novel dimerisations and brevianamide-type alkaloids
Creators: name: Jones, Helen
Publisher: name: The University of Edinburgh
Year: 2022

description: This thesis describes work towards two discrete projects; Chapter 1-3 methodology development of enantioconvergent reactions, Chapter 5-7 total synthesis of brevianamide type natural products. Both of these studies are linked through the underlying theme of the development of novel dimerisations. CHAPTER 1-3: Classically, asymmetric synthesis has relied upon kinetic resolutions to deal with racemic starting materials. Unfortunately, the use of kinetic resolutions is limited to a maximum 50% yield, which represents a serious inefficiency in modern chemical synthesis. Enantioconvergent reactions offer a method to circumvent this limitation and afford a single enantioenriched product in a maximum theoretical yield of 100%. However, all currently known methods for achieving enantioconvergency are limited in their substrate scope; the starting materials invariably contain stereogenic elements that are amenable to mutation or ablation and are currently unable to contain multiple stereogenic centres. We aimed to overcome this long-standing limitation by developing stereoretentive-enantioconvergent reactions, which would allow the use of racemic substrates with multiple robust stereogenic elements. The new approach would feature a symmetry-breaking dimerisation of racemic starting materials to form of a non-meso dimeric product. To accomplish this we targeted dimerisations that are inherently heterochiral-selective (i.e., opposite enantiomers dimerise), and developed methods to make these reactions enantioconvergent. This thesis will describe our investigations into previously known heterochiral-selective dimerisations; an aza-Darzens dimerization (Chapter 2) and a Diels–Alder dimerization (Chapter 3), and efforts to make them enantioconvergent including the success of performing the first stereoretenetive enantioconvergent aza-Darzens reaction. CHAPTER 4-7: The brevianamides are a family of alkaloid natural products extracted from the Aspergillus and Pencillium fungi. The brevianamides were the first natural products, isolated in 1969, to contain the archetypal bicyclo[2.2.2]diazaoctane ring. Since their first isolation their complex structure and varied biological activities have inspired many total syntheses. Despite decades of experimentation, the synthesis of many members of the brevianamide family have yet to be conquered and many unanswered questions remain about their biosynthetic origin. In 2020 the Lawrence group published the first total synthesis of brevianamide A, over 50 years since its isolation. This thesis continues the Lawrence group’s work and describes the efforts towards the first total synthesis of a dimeric member of the natural product family, in addition to the concise bioinspired total synthesis of other members. These studies also provided new mechanistic insights into the key domino reaction pathway believed to be biosynthetically responsible for constructing the core bicyclo[2.2.2]diazaoctane motif.
Varying importance of cuticular hydrocarbons and iridoids in the species-specific mate recognition pheromones of three closely related Leptopilina species
Creators: name: Weiss, Ingmar
name: Hofferberth, John
name: Ruther, Joachim
name: Stöckl, Johannes
Publisher: name: Universität Regensburg
Year: 2015
Subjects: subject: Iridomyrmecin, Drosophila, Parasitoid wasp, Chemical diversity, Saltational evolution
subject: 590 Tiere (Zoologie)

description: Finding a suitable mate for reproduction is one of the most important tasks for almost all animals. In insects this task is often facilitated by pheromone-mediated communication. While insect pheromones in general show enormous chemical diversity, closely related species often use structurally similar compounds in their pheromones. Despite this similarity, pheromones of congeneric species living in sympatry need to be species specific. We investigated the pheromone-mediated mate recognition by males of three closely related species of Leptopilina, a genus of parasitoid wasps that utilize the larvae of Drosophila as hosts. The study species, L. heterotoma, L. boulardi, and L. victoriae, occur sympatrically and have a similar ecology and life history. We have found that mate recognition is species specific in all three species. This species specificity is achieved by a differing importance of cuticular hydrocarbons (CHCs) and iridoids in the female mate recognition pheromones. In L. heterotoma the iridoids are of major importance while CHCs play a negligible role. In L. boulardi, however, the CHCs are as important as the iridoids, while in L. victoriae, the CHCs alone elicit a full behavioral response of males. Our results provide novel insights into pheromone evolution in insects by showing that selection on two completely different classes of chemical compounds may generate conditions where compounds from both classes contribute to a varying degree to the chemical communication of closely related species and that this variation also generates the species specificity of the signals.
A Grunwald-Wang type theorem for abelian varieties
Creators: name: Creutz, Brendan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11R34

description: Let A be an abelian variety over a number field k. We show that weak approximation holds in the Weil-Châtelet group of A/k but that it may fail when one restricts to the n-torsion subgroup. This failure is however relatively mild; we show that weak approximation holds outside a finite set of primes which is generically empty. This proves a conjecture of Lang and Tate that can be seen as an analog of the Grunwald-Wang theorem in class field theory. The methods apply, for the most part, to arbitrary finite Galois modules and so may be of interest in their own right.
description: Version 3: minor edits to incorporate suggestions of the referee
Nest Etiquette—Where Ants Go When Nature Calls
Creators: name: Czaczkes, Tomer J.
name: Heinze, Jürgen
name: Ruther, Joachim
Publisher: name: Universität Regensburg
Year: 2015
Subjects: subject: 590 Tiere (Zoologie)

description: Sanitary behaviour is an important, but seldom studied, aspect of social living. Social insects have developed several strategies for dealing with waste and faecal matter, including dumping waste outside the nest and forming specialised waste-storage chambers. In some cases waste material and faeces are put to use, either as a construction material or as a long-lasting signal, suggesting that faeces and waste may not always be dangerous. Here we examine a previously undescribed behaviour in ants – the formation of well-defined faecal patches. Lasius niger ants were housed in plaster nests and provided with coloured sucrose solution. After two months, 1–4 well defined dark patches, the colour of the sucrose solution, formed within each of the plaster nests. These patches never contained other waste material such as uneaten food items, or nestmate corpses. Such waste was collected in waste piles outside the nest. The coloured patches were thus distinct from previously described ‘kitchen middens’ in ants, and are best described as ‘toilets’. Why faeces is not removed with other waste materials is unclear. The presence of the toilets inside the nest suggests that they may not be an important source of pathogens, and may have a beneficial role.
Gender Action Plan for SGA2
Creators: name: Karin, Grasenick
Publisher: name: Zenodo
Year: 2019
Subjects: Gender, Diversity, Equal Opportunities, Action Plan, Logic Chart

description: The Gender Action Plan identifies key measures for SGA2 to enhance equal opportunities and a better gender balance for the HBP. It is based on a proposal by convelop, the preliminary considerations of EAF Berlin during SGA1, feedback from the HBP Directorate and suggestions by the HBP Gender Advisory Committee.
title: "Ritratto femminile su busto moderno", arte romana, inv. CXII (ITA/EN)
title: Scheda catalogo digitale Borghese
titleType: AlternativeTitle
Creators: name: Ciccarello, Giulia
name: Galleria Borghese
Publisher: name: Galleria Borghese
Year: 2024

description: Pubblicazione delle schede delle opere conservate nel museo ed estratte dal catalogo digitale di

Galleria Borghese, nelle due versioni esistenti online, in italiano e inglese.

Collegamento al catalogo digitale:

ITA: https://www.collezionegalleriaborghese.it/

EN: https://www.collezionegalleriaborghese.it/en
Expression of paralogous SEP-, FUL-, AG- and STK-like MADS-box genes in wild-type and peloric Phalaenopsis flowers
Creators: name: Acri-Nunes-Miranda, Roberta
name: Mondragon-Palomino, Mariana
Publisher: name: Universität Regensburg
Year: 2014
Subjects: subject: Orchidaceae, flower evolution, evo-devo, qPCR, gene duplication, labellum
subject: 580 Pflanzen (Botanik)

description: The diverse flowers of Orchidaceae are the result of several major morphological transitions, among them the most studied is the differentiation of the inner median tepal into the labellum, a perianth organ key in pollinator attraction. Type A peloria lacking stamens and with ectopic labella in place of inner lateral tepals are useful for testing models on the genes specifying these organs by comparing their patterns of expression between wild-type and peloric flowers. Previous studies focused on DEFICIENS- and GLOBOSA-like MADS-box genes because of their conserved role in perianth and stamen development. The “orchid code” model summarizes this work and shows in Orchidaceae there are four paralogous lineages of DEFICIENS/AP3-like genes differentially expressed in each floral whorl. Experimental tests of this model showed the conserved, higher expression of genes from two specific DEF-like gene lineages is associated with labellum development. The present study tests whether eight MADS-box candidate SEP-, FUL-, AG-, and STK-like genes have been specifically duplicated in the Orchidaceae and are also differentially expressed in association with the distinct flower organs of Phalaenopsis hyb. “Athens.” The gene trees indicate orchid-specific duplications. In a way analogous to what is observed in labellum-specific DEF-like genes, a two-fold increase in the expression of SEP3-like gene PhaMADS7 was measured in the labellum-like inner lateral tepals of peloric flowers. The overlap between SEP3-like and DEF-like genes suggests both are associated with labellum specification and similar positional cues determine their domains of expression. In contrast, the uniform messenger levels of FUL-like genes suggest they are involved in the development of all organs and their expression in the ovary suggests cell differentiation starts before pollination. As previously reported AG-like and STK-like genes are exclusively expressed in gynostemium and ovary, however no evidence for transcriptional divergence was found in the stage investigated. Gene expression suggests a developmental regulatory system based on the combined activity of duplicate MADS-box genes. We discuss its feasibility based on documented protein interactions and patterns of expression.
Structural physical approximations and entanglement witnesses
Creators: name: Wang, Bang-Hai
name: Long, Dong-Yang
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The structural physical approximation (SPA) to a positive map is considered to be one of the most important method to detect entanglement in the real physical world. We first show that an arbitrary entanglement witness (EW) $W$ can be constructed from a separable density matrix $σ$ in the form of $W=σ-c_σ I$, where $c_σ$ is a non-negative number and $I$ is the identity matrix. Following the general form of EWs from separable states, we show a sufficient condition and a sufficient and necessary condition in low dimensions of that SPAs to positive maps do not define entanglement-breaking channels. We show that either the SPA of an EW or the SPA of the partial transposition of the EW in low dimensions is an entanglement-breaking channel. We give sufficient conditions of violating the SPA conjecture [\emph{Phys. Rev. A}{\bf 78,} 062105 (2008)]. Our results indicate that the SPA conjecture is independent of whether or not positive maps are optimal.
description: 7 pages, fixed some typos, thanks to the many comments received!
Deliverable 4.5 (D4.5): Protocol for the processing of DNA sequence data generated by next-gen platforms, EnMetaGen project (Grant Agreement No 668981).
Creators: name: Galhardo, Mafalda
name: Fonseca, Nuno
name: Egeter, Bastian
name: Paupério, Joana
name: Ferreira, Sónia
name: Oxelfelt, Fredrik
name: Aresta, Sandra
name: Muñoz-Merida, Antonio
name: Martins, Filipa
name: Mata, Vanessa
name: Silva, Luís
name: Peixoto, Sara
name: Garcia-Raventós, Aina
name: Vasconcelos, Sasha
name: Gil, Patrícia
name: Khalatbari, Leili
name: Jarman, Simon
name: Beja, Pedro
Publisher: name: Zenodo
Year: 2018
Subjects: DNA metabarcoding data processing

description: The overall goal of the EnvMetaGen project No 668981 is to expand the research and innovation potential of InBIO – Research network in Biodiversity and Evolutionary Biology - through the creation of an ERA Chair in Environmental Metagenomics. This field was selected as the focus of the ERA Chair, because Environmental DNA (eDNA) analysis is increasingly being used for biodiversity assessment, diet analysis, detection of rare or invasive species, population genetics and ecosystem functional analysis. In this context, the work plan of EnvMetaGen includes one work package dedicated to the Deployment of an eDNA Lab (WP4), which involves the training of InBIO researchers and technicians for implementing best practice protocols for the analysis of eDNA (Task 4.2). These protocols are essential to the development of research projects in association with business partners and other stakeholders in key application areas identified in the project, and thus to the strengthening of InBIO triple-helix initiatives (InBIO-Industry-Government; WP5).

This report (Deliverable D4.5) builds upon previous ones (Deliverables D4.2-D4.4, respectively Ferreira et al. (2018), Egeter et al. (2018), Paupério et al. (2018)) and provides an overview of the processing protocols for DNA sequence data generated by next-gen platforms within EnvMetaGen-affiliated projects. Deliverables D4.2-D4.5 form a detailed account of the successful deployment of a fully functional eDNA lab under the EnvMetaGen project and provide a valuable resource for eDNA practitioners in all spheres of the triple-helix model. This development was made possible through the recruitment of the ERA Chair team (WP2), secondments and Junior Researcher exchanges through the collaboration with international networks (WP3), an enhancement of computational infrastructure at InBIO (WP4) and participation of team members in workshops and conferences (WP6).
Differential binding of colors to objects in memory: red and yellow stick better than blue and green
Creators: name: Kuhbandner, Christof
name: Spitzer, Bernhard
name: Lichtenfeld, Stephanie
name: Perkun, Reinhard
Publisher: name: Universität Regensburg
Year: 2015
Subjects: subject: color,memory,binding,subjectiveconfidence,red,green,blue,yellow
subject: 150 Psychologie

description: Both evolutionary considerations and recent research suggest that the color red serves as a signal indicating an object’s importance. However, until now, there is no evidence that this signaling function of red is also reflected in human memory. To examine the effect of red on memory, we conducted four experiments in which we presented objects colored in four different colors (red, green, blue, and yellow) and measured later memory for the presence of an object and for the color of an object. Across experiments, we varied the type of objects (words vs. pictures), task complexity (single objects vs. multiple objects in visual scenes), and intentionality of encoding (intentional vs. incidental learning). Memory for the presence of an object was not influenced by color. However, in all four experiments, memory for the color of an object depended on color type and was particularly high for red and yellow-colored objects and particularly low for green-colored objects, indicating that the binding of colors into object memory representations varies as a function of color type. Analyzing the observers’ confidence in their color memories revealed that color not only influenced objective memory performance but also subjective confidence. Subjective confidence judgments differentiated well between correct and incorrect color memories for red-colored objects, but poorly for green-colored objects. Our findings reveal a previously unknown color effect which may be of considerable interest for both basic color research and applied settings like eyewitness testimony in which memory for color features is relevant. Furthermore, our results indicate that feature binding in memory is not a uniform process by which any attended feature is automatically bound into unitary memory representations. Rather, memory binding seems to vary across different subtypes of features, a finding that supports recent research showing that object features are stored in memory rather independently from each other.
Complexity classifications for different equivalence and audit problems for Boolean circuits
Creators: name: BÃ¶hler, Elmar
name: Creignou, Nadia
name: Galota, Matthias
name: Reith, Steffen
name: Schnoor, Henning
name: Vollmer, Heribert
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences
subject: F.2.2

description: We study Boolean circuits as a representation of Boolean functions and consider different equivalence, audit, and enumeration problems. For a number of restricted sets of gate types (bases) we obtain efficient algorithms, while for all other gate types we show these problems are at least NP-hard.
description: 25 pages, 1 figure
A Self-Adaptation Mechanism for Variability Management in Dynamic Software Product Lines
Creators: name: Anonymous
Publisher: name: Zenodo
Year: 2023

description: Variability management is crucial for companies that need to offer multiple product variants quickly. However, the increasing complexity of software-intensive systems has made variability management increasingly challenging. This challenge is compounded by the need for such systems to run continuously and adapt to changes in the environment and user needs at runtime. To address this challenge, Dynamic Software Product Line (DSPL) Engineering has emerged as a strategy for managing variability in complex and dynamic environments. The key challenge in DSPL engineering is to manage product configurations at runtime by detecting changes in the context and adapting accordingly. In this paper, we propose an adaptation mechanism for DSPL feature models that supports dynamic variability and is based on the \textsc{MAPE-K} model. The mechanism transforms feature model constraints into rules that enable the activation of each feature and annotates contexts in the corresponding features to be activated when changes occur. We have implemented the mechanism in the \textsc{DyMMer 2.0} modeling tool and evaluated its performance using various DSPL feature models. Additionally, we conducted a proof-of-concept study with an expert to assess its practical usage. Our results demonstrate the effectiveness and practicality of the proposed mechanism in managing variability in complex and dynamic environments.
Snake trajectories in ultraclean graphene p–n junctions
Creators: name: Rickhaus, Peter
name: Makk, Péter
name: Liu, Ming-Hao
name: Tóvári, Endre
name: Weiss, Markus
name: Maurand, Romain
name: Richter, Klaus
name: Schönenberger, Christian
Publisher: name: Universität Regensburg
Year: 2015
Subjects: subject: graphene
subject: 530 Physik

description: Snake states are trajectories of charge carriers curving back and forth along an interface. There are two types of snake states, formed by either inverting the magnetic field direction or the charge carrier type at an interface. The former has been demonstrated in GaAs–AlGaAs heterostructures, whereas the latter has become conceivable only with the advance of ballistic graphene where a gap-less p–n interface governed by Klein tunnelling can be formed. Such snake states were hidden in previous experiments due to limited sample quality. Here we report on magneto-conductance oscillations due to snake states in a ballistic suspended graphene p–n junction, which occur already at a very small magnetic field of 20 mT. The visibility of 30% is enabled by Klein collimation. Our finding is firmly supported by quantum transport simulations. We demonstrate the high tunability of the device and operate it in different magnetic field regimes.
Efectos de la biorretroalimentación audiovisual en la fisiología de personas sometidas a ejercicios aeróbicos
Creators: name: Ortega, Ana Paula Tapia
name: Di Lorenzo, Hugo Ezequiel
Publisher: name: Zenodo
Year: 2023
Subjects: ejercicio
musicoterapia
terapia forestal
biofeedback

description: En la actualidad hay numerosos estudios que evidencian el papel que tiene escuchar música antes o durante el ejercicio para aumentar el rendimiento, pero hay poca información que evalúe el efecto de la música e imágenes sobre los procesos fisiológicos en el tiempo de recuperación posterior a la realización de un ejercicio. En el siguiente trabajo se analizó el efecto de imágenes relajantes y la musicoterapia en el tiempo de recuperación posterior a un ejercicio aeróbico. Para ello se midieron de forma continua los parámetros fisiológicos de la frecuencia cardíaca, la saturación de oxígeno y la temperatura corporal a 22 sujetos sometidos a entornos diferentes: con imágenes, con sonido y la combinación de ambas. La prueba ANOVA indicó que con las tres terapias el tiempo de recuperación de la frecuencia cardíaca fue significativamente más rápido en comparación a las mediciones sin ninguna terapia, destacando que la audiovisual fue la más efectiva. En cuanto a la saturación de oxígeno no se detectaron cambios significativos en los valores medidos y en la temperatura corporal los tiempos se vieron afectados por factores externos y no por la influencia de las terapias. En conclusión, analizando los resultados obtenidos de la frecuencia cardíaca, se obtuvo que las terapias aceleran la recuperación luego de un ejercicio, demostrando la efectividad de las mismas, siendo el tiempo de relajación independiente de la preferencia musical y de imágenes de cada sujeto.
Coupling between switching regulation and torque generation in bacterial flagellar motor
Creators: name: Bai, Fan
name: Minamino, Tohru
name: Wu, Zhanghan
name: Namba, Keiichi
name: Xing, Jianhua
Publisher: name: arXiv
Year: 2011
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The bacterial flagellar motor plays a crucial role in both bacterial locomotion and chemotaxis. Recent experiments reveal that the switching dynamics of the motor depends on the motor rotation speed, and thus the motor torque, non-monotonically. Here we present a unified mathematical model which models motor torque generation based on experimental torque-speed curves and torque-dependent switching based on the conformational spread model. The model successfully reproduces the observed switching rate as a function of the rotation speed, and provides a generic physical explanation independent of most details. A stator affects the switching dynamics through two mechanisms: accelerating the conformation flipping rates of individual rotor switching units, which favours slower motor speed and thus increasing torque; and affecting more switching units within unit time, which favours faster speed. Consequently, the switching rate shows a maximum at intermediate speed. Our model predicts that a motor switches more often with more stators. The load-switching relation may serve as a mechanism for sensing the physical environment, similar to the chemotaxis system for sensing the chemical environment. It may also coordinate the switch dynamics of motors within a cell.
description: 23 pages, 5 figures
Swedish Supercentenarians
Creators: name: Lindberg, Jimmy
Publisher: name: Zenodo
Year: 2023

description: Sweden's population registration system is among the most advanced and comprehensive in the world, with a history spanning several centuries. This system allows for the verification of all native age claims born in the past three centuries. By utilizing the population registration system and publicly available genealogy resources, 28 individuals of Nordic descent were authenticated as having reached the age of 110 or older in Sweden by 2022.
Probing many-body scattering in Cu(111) via FT-STS : understanding local perturbations from the collective signatures of a 2D electron gas
Creators: name: Farahi, Gelareh
Publisher: name: University of British Columbia
Year: 2017

description: Surface states of close-packed noble metals form an approximate two-dimensional electron gas whose many-body signatures can be locally probed using a scanning tunneling microscope (STM). In this work I present a study of the Cu(111) surface state with high-resolution Fourier Transform Scanning Tunneling Spectroscopy (FT-STS), and for the first time demonstrate that the energy dispersion and quasi-particle lifetime of the surface states can be accurately quantified in both the occupied and unoccupied states. The scat-tering phase-shift imposed by defect potentials is then extracted in Fourier space, which is consistent with previous real space analyses. This result is later used in the T-matrix simulation of the density of states that gives an accurate description of our data. Finally, I report that in dilute Co/Cu(111) where the absence of time-reversal symmetry allows for spin-flip scattering, spin-conserving scattering dominates the FT-STS signal.