cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Who are we now?
Creators: name: Massey, Robert
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: In 2014 the Royal Astronomical Society carried out a survey of its membership, finding that we are both more and less diverse than UK society as a whole. Robert Massey summarizes the findings and what they mean for the Society in future.
description: This article has been published in Astronomy and Geophysics. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved
On a new conformal functional for simplicial surfaces
Creators: name: Bobenko, Alexander I.
name: Weidner, Martin P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 52C26, 53A30, 53C42

description: We introduce a smooth quadratic conformal functional and its weighted version $$W_2=\sum_e β^2(e)\quad W_{2,w}=\sum_e (n_i+n_j)β^2(e),$$ where $β(e)$ is the extrinsic intersection angle of the circumcircles of the triangles of the mesh sharing the edge $e=(ij)$ and $n_i$ is the valence of vertex $i$. Besides minimizing the squared local conformal discrete Willmore energy $W$ this functional also minimizes local differences of the angles $β$. We investigate the minimizers of this functionals for simplicial spheres and simplicial surfaces of nontrivial topology. Several remarkable facts are observed. In particular for most of randomly generated simplicial polyhedra the minimizers of $W_2$ and $W_{2,w}$ are inscribed polyhedra. We demonstrate also some applications in geometry processing, for example, a conformal deformation of surfaces to the round sphere. A partial theoretical explanation through quadratic optimization theory of some observed phenomena is presented.
description: 14 pages, 8 figures, to appear in the proceedings of "Curves and Surfaces, 8th International Conference", June 2014
Information flows in macroscopic Maxwell's demons
Creators: name: Freitas, Nahuel
name: Esposito, Massimiliano
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A CMOS-based implementation of an autonomous Maxwell's demon was recently proposed (Phys. Rev. Lett. 129, 120602) to demonstrate that a Maxwell demon can still work at macroscopic scales, provided that its power supply is scaled appropriately. Here, we first provide a full analytical characterization of the non-autonomous version of that model. We then study system-demon information flows within generic autonomous bipartite setups displaying a macroscopic limit. By doing so, we can study the thermodynamic efficiency of both the measurement and the feedback process performed by the demon. We find that the information flow is an intensive quantity and that, as a consequence, any Maxwell's demon is bound to stop working above a finite scale if all parameters but the scale are fixed. However, this can be prevented by appropriately scaling the thermodynamic forces. These general results are applied to the autonomous CMOS-based demon.
description: minor corrections. arXiv admin note: text overlap with arXiv:2204.09466
[Pdf/ePub/Mobi] LAS OTRAS NIÑAS (INDIRA RAMOS 2) - SANTIAGO DIAZ descargar ebook gratis
Creators: name: Williams
Publisher: name: Zenodo
Year: 2024

description: LAS OTRAS NIÑAS (INDIRA RAMOS 2) de SANTIAGO DIAZ

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LAS OTRAS NIÑAS (INDIRA RAMOS 2)

SANTIAGO DIAZ

Idioma: CASTELLANO

Formatos: Pdf, ePub, MOBI, FB2

ISBN: 9788466373197

Editorial: DEBOLSILLO

Año de edición: 2024

 

 

 

 

 

Descarga de libros electrónicos para tabletas Android LAS OTRAS NIÑAS (INDIRA RAMOS 2) ePub FB2 de SANTIAGO DIAZ 9788466373197

 

Overview
A note on spectral properties of the $p$-adic tree
Creators: name: Klimek, Slawomir
name: Rathnayake, Sumedha
name: Sakai, Kaoru
Publisher: name: arXiv
Year: 2015
Subjects: subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: Primary 47A10, Secondary 47A11, 47A75, 46L89

description: We study the spectrum of the operator $D^*D$, where the operator $D$, introduced in \cite{KMR}, is a forward derivative on the $p$-adic tree, a weighted rooted tree associated to $\mathbb Z_p$ via Michon's correspondence. We show that the spectrum is closely related to the roots of a certain $q-$hypergeometric function and discuss the analytic continuation of the zeta function associated with $D^*D$.
X-ray galaxies selected from HyperLEDA database
Creators: name: Pulatova, N.
name: Tugay, A.
name: Zadorozhna, L.
name: Seeburger, R.
name: Gugnin, O.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We cross-matched the 4XMM-DR10 catalog with the HyperLEDA database and obtained the new sample of galaxies that contain X-ray sources. Excluding duplicate observations and false matches, we present a total of 7759 galaxies with X-ray sources. In the current work, we present general properties of the sample: namely the distribution in equatorial coordinates, radial velocity distribution, morphological type, and X-ray fluxes. The sample includes morphological classification for 5241 galaxies with X-ray emission, almost half of which, 42\%, are elliptical (E, E-S0). Most galaxies in the sample have nuclear X-ray emission (6313 or 81\%), and the remaining 1443 (19\%) present X-ray emission from the host galaxy. This sample can be used for future deep studies of multi wavelengths properties of the galaxies with X-ray emission.
description: 11 pages and 5 figures
Generalized $R^p$-attractor Cosmology in the Jordan and Einstein Frames: New Type of Attractors and Revisiting Standard Jordan Frame $R^p$ Inflation
Creators: name: Odintsov, S. D.
name: Oikonomou, V. K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work we shall study a new class of attractor models which we shall call generalized $R^p$-attractor models. This class of models is based on a generalization of the Einstein frame potential of $R^p$ $f(R)$ gravity models in the Jordan frame. We present the attractor properties of the corresponding non-minimally coupled Jordan frame theory, and we calculate the observational indices of inflation in the Einstein frame. As we show, there is a large class of non-minimally coupled scalar theories, with an arbitrary non-minimal coupling which satisfies certain conditions, that yield the same Einstein frame potential, this is why these models are characterized attractors. As we demonstrate, the generalized $R^p$-attractor models are viable and well fitted within the Planck constraints. This includes the subclass of the generalized $R^p$-attractor models, namely the Einstein frame potential of $R^p$ inflation in the Jordan frame, a feature also known in the literature. We also highlight an important issue related to the $R^p$ inflation in the Jordan frame, which is known to be non-viable. By conformal invariance, the $R^p$ inflation model should also be viable in the Jordan frame, which is not. We pinpoint the source of the problem using two different approaches in the $f(R)$ gravity Jordan frame, and as we demonstrate, the problem arises in the literature due to some standard simplifications made for the sake of analyticity. We demonstrate the correct way to analyze $R^p$ inflation in the Jordan frame, using solely the slow-roll conditions.
description: IJMPD Accepted
Participating subject details from Avoidance of biological contaminants through sight, smell and touch in chimpanzees.
Creators: name: Sarabian, Cecile
name: Barthelemy Ngoubangoye
name: MacIntosh, Andrew J. J.
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 60801 Animal Behaviour

description: Sex is given as m for males and f for females, age is given in the number of years at the time of the study, and dominance rank is based on social interactions recorded by the staff during the study period. Vision, Olfaction and Touch reflect the three sensory modalities for which subjects have been tested (indicated as “x” or blank if not tested); R and D indicate whether subjects have been tested for the rope and dough conditions, respectively.
Download Pdf Son Rise: The Miracle Continues by Barry Neil Kaufman
Creators: name: Racine
Publisher: name: Zenodo
Year: 2024

description: Son Rise: The Miracle Continues by Barry Neil Kaufman

 

 

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Son Rise: The Miracle Continues

Barry Neil Kaufman

Page: 347

Format: pdf, ePub, mobi, fb2

ISBN: 9780915811618

Publisher: Kramer, H. J., Inc.

 

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Overview

In 1979, the classic best-seller Son-Rise was made into an award-winning NBC television special, which has been viewed by 300 million people worldwide. Now, Son-Rise: The Miracle Continues presents an expanded and updated journal of Barry and Samahria Kaufman's successful effort to reach their once "unreachable" autistic child. Part one documents Raun Kaufman's astonishing development from a lifeless, autistic, retarded child into a highly verbal, lovable youngster with no traces of his former condition. Part two details Raun's extraordinary progress from the age of four into young adulthood. Part three shares moving accounts of five families that successfully used the Son-Rise Program to reach their own special children. An awe-inspiring reminder that love moves mountains. A must for any parent, teacher or student of personal growth. Based on the classic bestseller Son-Rise, which was made into an award-winning TV movie viewed by 300 million people worldwide, this expanded and updated journal continues the story of Barry and Samahria Kaufman's efforts to reach Raun, their autistic child. 22 photos.
Neuroendocrine regulation of Drosophila metamorphosis requires TGF /Activin signaling
Creators: name: O'Connor, Michael B.
name: Gilbert, Lawrence I.
name: Gibbens, Ying Y.
name: Warren, James T.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: In insects, initiation of metamorphosis requires a surge in the production of the steroid hormone 20-hydroxyecdysone from the prothoracic gland, the primary endocrine organ of juvenile larvae. Here, we show that blocking TGFβ/Activin signaling, specifically in the Drosophila prothoracic gland, results in developmental arrest prior to metamorphosis. The terminal, giant third instar larval phenotype results from a failure to induce the large rise in ecdysteroid titer that triggers metamorphosis. We further demonstrate that activin signaling regulates competence of the prothoracic gland to receive PTTH and insulin signals, and that these two pathways act at the mRNA and post-transcriptional levels, respectively, to control ecdysone biosynthetic enzyme expression. This dual regulatory circuitry may provide a cross-check mechanism to ensure that both developmental and nutritional inputs are synchronized before initiating the final genetic program leading to reproductive adult development. As steroid hormone production in C. elegans and mammals is also influenced by TGFβ/Activin signaling, this family of secreted factors may play a general role in regulating developmental transitions across phyla.
Read online: Churchill's Spy Files: MI5's Top-Secret Wartime Reports by Nigel West
Creators: name: York
Publisher: name: Zenodo
Year: 2024

description: Churchill's Spy Files: MI5's Top-Secret Wartime Reports by Nigel West

 

 

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Churchill's Spy Files: MI5's Top-Secret Wartime Reports

Nigel West

Page: 468

Format: pdf, ePub, mobi, fb2

ISBN: 9781803994826

Publisher: The History Press

 

Ebooks mobi download free Churchill's Spy Files: MI5's Top-Secret Wartime Reports 9781803994826

Books, Arts & Curiosities - News from MI5 Churchill and secret intelligence had been companions-in-arms for most of his political career. As Home Secretary before the First World War, he  Finest Hour 182 Archives - Page 2 of 3 Finest Hour 182, Fall 2018 Page 47 Review by David Stafford Nigel West, Churchill's Spy Files: MI5's Top Secret Wartime Reports, The History Press, 2018, 464  Churchill's Spy Files : Mi5's Top-secret Wartime Reports Envíos gratis en el día ✓ Compra en cuotas sin interés y recibe tu ☞ Churchill's Spy Files : Mi5's Top-secret Wartime Reports Churchill's Spy Files, eBook by Nigel West Buy Churchill's Spy Files, MI5's Top-Secret Wartime Reports by Nigel West from Booktopia. Get a discounted ePUB from Australia's leading online bookstore. Churchill's Spy Files: MI5's Top-Secret Wartime Reports In Churchill's Spy Files acclaimed intelligence expert Nigel West unravels the tales of hitherto unknown spy missions, using this ground-breaking research to  Browse Books | Page 24 | brookline booksmith Browse Books ; Churchill's Spy Files: MI5's Top-Secret Wartime Reports (Hardcover). By Nigel West. $32.95 ; Enemies: How America's Foes Steal Our Vital Secrets--  Churchill's Secret Messenger: A WW2 Novel of Spies & A riveting story of World War II and the courage of one young woman as she is drafted into Churchill's overseas spy network, aiding the French  Churchill's Spy Files: MI5's Top-Secret Wartime Reports Churchill's Spy Files: MI5's Top-Secret Wartime Reports The Second World War saw the role of espionage, secret agents and spy services increase exponentially
Location of gamma-ray flaring region in quasar 4C +21.35
Creators: name: Lei, Maichang
name: Wang, Jiancheng
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: 4C +21.35 is a flat-spectrum-radio-quasar-type blazar, in which the rapid variability of very high energy (VHE, $E_γ\gtrsim 100$\,GeV) emission as short as $\sim$ 10 minutes was observed by MAGIC Cherenkov telescopes, and the VHE spectrum extends up to at least 400\,GeV. In this paper, by using a flat broad-line region (BLR) structure, we study the location and properties of $γ$-ray emitting region of 4C +21.35 under the constraints of multiwavelength data. We fit three quasi-simultaneous spectral energy distributions (SEDs) using homogeneous one-zone leptonic model, in which the flat BLR with the aperture angle of $α=25^{\circ}$ and a spherically symmetric hot dusty torus with the temperature of $T_{\rm sub}=1200$\,K, are assumed. The results show that the jet structure of 4C +21.35 is nearly conical with a half-opening angle of $θ_{\rm j}\simeq 0.29^{\circ}-0.6^{\circ}$. Furthermore, the emitting region is located within the BLR clouds and approaches to outer radius of the BLR during the flaring states, while it is well beyond the dusty torus in quiescent state. The quiescent high-energy emission is dominated by synchrotron self-Compton (SSC) process, the high-energy emission during the flaring periods is dominated by Compton scattering of BLR and dusty torus photons with the value of Compton-dominance parameter is about 30. Moreover, the fit to optical/ultraviolet data provides a further support that the central black hole (BH) mass of 4C +21.35 is $6\times 10^{8}$\,$M_{\odot}$.
description: 15 Pages, 7 figures, accepted for publication in Publications of the Astronomical Society of Japan
(2963) Mary Fison
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Transcription precedes loss of Xist coating and depletion of H3K27me3 during X-chromosome reprogramming in the mouse inner cell mass
Creators: name: Starmer, Joshua
name: Magnuson, Terry
name: Williams, Lucy H.
name: Kalantry, Sundeep
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: Repression of Xist RNA expression is considered a prerequisite to reversal of X-chromosome inactivation (XCI) in the mouse inner cell mass (ICM), and reactivation of X-linked genes is thought to follow loss of Xist RNA coating and heterochromatic markers of inactivation, such as methylation of histone H3. We analyzed X-chromosome activity in developing ICMs and show that reactivation of gene expression from the inactive-X initiates in the presence of Xist coating and H3K27me3. Furthermore, depletion of Xist RNA coating through forced upregulation of NANOG does not result in altered reactivation kinetics. Taken together, our observations suggest that in the ICM, X-linked gene transcription and Xist coating are uncoupled. These data fundamentally alter our perception of the reactivation process and support the existence of a mechanism to reactivate Xp-linked genes in the ICM that operates independently of loss of Xist RNA and H3K27me3 from the imprinted inactive-X.
Planet Engulfment Signatures in Twin Stars
Creators: name: Behmard, Aida
name: Sevilla, Jason
name: Fuller, Jim
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Planet engulfment can be inferred from enhancement of refractory elements in the photosphere of the engulfing star following accretion of rocky planetary material. Such refractory enrichments are subject to stellar interior mixing processes, namely thermohaline mixing induced by an inverse mean-molecular-weight gradient between the convective envelope and radiative core. Using MESA stellar models, we quantified the strength and duration of engulfment signatures following planet engulfment. We found that thermohaline mixing dominates during the first $\sim$5$-$45 Myr post-engulfment, weakening signatures by a factor of $\sim$2 before giving way to depletion via gravitational settling on longer timescales. Solar metallicity stars in the 0.5-1.2 $M_{\odot}$ mass range have observable signature timescales of $\sim$1 Myr$-$8 Gyr, depending on the engulfing star mass and amount of material engulfed. Early type stars exhibit larger initial refractory enhancements but more rapid depletion. Solar-like stars ($M$ = 0.9$-$1.1 $M_{\odot}$) maintain observable signatures ($>$0.05 dex) over timescales of $\sim$20 Myr$-$1.7 Gyr for nominal 10 $M_{\oplus}$ engulfment events, with longer-lived signatures occurring for low-metallicity and/or hotter stars (1 $M_{\odot}$, $\sim$2$-$3 Gyr). Engulfment events occurring well after the zero-age main sequence produce larger signals due to suppression of thermohaline mixing by gravitational settling of helium (1 $M_{\odot}$, $\sim$1.5 Gyr). These results indicate that it may be difficult to observe engulfment signatures in solar-like stars that are several Gyr old.
description: 13 pages, 8 figures; accepted for publication in MNRAS
(2964) James Fison
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
MANOS FRÍAS EBOOK | ZETAZEN | Descargar libro PDF EPUB
Creators: name: Burlingame
Publisher: name: Zenodo
Year: 2024

description: MANOS FRÍAS de ZETAZEN

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MANOS FRÍAS

ZETAZEN

Idioma: CASTELLANO

Formatos: Pdf, ePub, MOBI, FB2

ISBN: 9788427052239

Editorial: MARTINEZ ROCA

Año de edición: 2024

 

 

 

 

 

Libros descargar itunes gratis. MANOS FRÍAS de ZETAZEN 9788427052239 FB2 CHM

 

Overview

El debut poético del artista Zetazen.«Sé bastante de muy poco, pero sé que, si mañana muero, todo lo que dejé aquí fue auténtico. Me encantaría escribir un tema por semana, pero Dios sabe que no sería igual. Amaría tener doscientas colaboraciones, pero amo también lo sagrado del espacio de un track de tres minutos en el que casi siempre me encuentro solo, tranquilo, conmigo. Me gusta que todo el mundo sepa si algo tiene alma o no, y que a su vez nadie sepa explicar por qué. Somos eso». Un conjunto crudo y sin filtros de las creaciones más íntimas de Zetazen. Sumérgete entre sus poemas, reflexiones y letras inéditas, que trazan un viaje introspectivo y transformador del alma.
ANEC on stress-tensor states in perturbative $λϕ^4$ theory
Creators: name: Bautista, Teresa
name: Casarin, Lorenzo
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We evaluate the Average Null Energy Condition (ANEC) on momentum eigenstates generated by the stress tensor in perturbative $λ\, ϕ^4$ and general spacetime dimension. We first compute the norm of the stress-tensor state at second order in $λ$; as a by-product of the derivation we obtain the full expression for the stress tensor 2-point function at this order. We then compute the ANEC expectation value to first order in $λ$, which also depends on the coupling of the stress-tensor improvement term $ξ$. We study the bounds on these couplings that follow from the ANEC and unitarity at first order in perturbation theory. These bounds are stronger than unitarity in some regions of coupling space.
description: 25 pages
Failure of extra-embryonic progenitor maintenance in the absence of dosage compensation
Creators: name: Magnuson, Terry
name: Mugford, Joshua W.
name: Yee, Della
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Proper regulation of X-linked gene expression, termed dosage compensation, is required for the normal development of mammalian embryos. Through the process of X chromosome inactivation (XCI), somatic cells of mammalian females inactivate one of their two X chromosomes in order to balance X-linked gene dosage with their male counterparts. The process of XCI is dependent upon the long non-coding RNA Xist, which is expressed from and coats the inactivated X chromosome (Xi) in cis. During mouse embryogenesis, imprinted XCI inactivates the paternally inherited X chromosome (Xp) within the extra-embryonic lineages. Consequently, females harboring a paternally derived Xist mutation (X/XXist–) die owing to failure of imprinted XCI and, presumably, poor trophoblast development. Here, we investigate the consequence of two active X chromosomes in the extra-embryonic ectoderm (ExE) of X/XXist– female embryos. At embryonic day (E) 6.5, we find that the X/XXist– ExE lacks the transcriptional regulator CDX2, a factor required to maintain the ExE in a progenitor state. In addition, spongiotrophoblast progenitors are not maintained. Surprisingly, we observe evidence of an Xi in a subpopulation of X/XXist– ExE cells. We demonstrate further that trophectodermal stem cells derived from X/XXist– embryos completely reverse normal imprinted XCI patterns. Taken together, our data suggest that, much like in the cells of the epiblast, the initial imprint that establishes imprinted XCI is probably erased in ExE cells. Conversely, unlike the epiblast, in which XCI is not required for progenitor cell maintenance, we demonstrate that dosage compensation is indispensable for the maintenance of trophoblast progenitors.
(2957) Harriet [Schofield]
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Formation and specification of a Drosophila dopaminergic precursor cell
Creators: name: Watson, Joseph D.
name: Crews, Stephen T.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Dopaminergic neurons play important roles in animal behavior, including motivation, reward and locomotion. The Drosophila dopaminergic H-cell interneuron is an attractive system for studying the genetics of neural development because analysis is focused on a single neuronal cell type. Here we provide a mechanistic understanding of how MP3, the precursor to the H-cell, forms and acquires its identity. We show that the gooseberry/gooseberry-neuro (gsb/gsb-n) transcription factor genes act to specify MP3 cell fate. It is proposed that single-minded commits neuroectodermal cells to a midline fate, followed by a series of signaling events that result in the formation of a single gsb+/gsb-n+ MP3 cell per segment. The wingless signaling pathway establishes a midline anterior domain by activating expression of the forkhead transcription factors sloppy paired 1 and sloppy paired 2. This is followed by hedgehog signaling that activates gsb/gsb-n expression in a subgroup of anterior cells. Finally, Notch signaling results in the selection of a single MP3, with the remaining cells becoming midline glia. In MP3, gsb/gsb-n direct H-cell development, in large part by activating expression of the lethal of scute and tailup H-cell regulatory genes. Thus, a series of signaling and transcriptional events result in the specification of a unique dopaminergic precursor cell. Additional genetic experiments indicate that the molecular mechanisms that govern MP3/H-cell development might also direct the development of non-midline dopaminergic neurons.
In the absence of BYPASS1-related gene function, the bps signal disrupts embryogenesis by an auxin-independent mechanism
Creators: name: Murphy, Caroline
name: Adhikari, Emma
name: Lee, Dong Keun
name: Reed, Jason W.
name: Sieburth, Leslie E.
name: Van Norman, Jaimie M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Development is often coordinated by biologically active mobile compounds that move between cells or organs.
Participating subject details from Avoidance of biological contaminants through sight, smell and touch in chimpanzees
Creators: name: Sarabian, Cecile
name: Barthelemy Ngoubangoye
name: MacIntosh, Andrew J. J.
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 60801 Animal Behaviour

description: Sex is given as m for males and f for females, age is given in the number of years at the time of the study, and dominance rank is based on social interactions recorded by the staff during the study period. Vision, Olfaction and Touch reflect the three sensory modalities for which subjects have been tested (indicated as “x” or blank if not tested); R and D indicate whether subjects have been tested for the rope and dough conditions, respectively.
(2958) Charles Thackeray Bennett
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Improving optical access, sampling speed, and resolution for in vivo multiphoton microscopy
Creators: name: Hassan, Ahmed Moustafa
name: 0000-0002-9009-1481
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: Multiphoton microscopy
Ultrafast lasers
Super-resolution optics

description: Multiphoton microscopy is a powerful optical imaging modality renowned for its non-invasive nature and relatively affordable characteristics. In particular, it has found its niche in neuroimaging due to its ability to probe in vivo biological processes in scattering brain tissue approaching millimeter depths with cellular resolution. However, the brain is a large and complex organ, and in order to fully understand its heterogeneous architecture and associated functional roles, several distal regions must be imaged simultaneously. Moreover, due to the critical implications of organelle features in various macroscale processes, whole-brain imaging at subcellular resolution scales presents itself as one of the outstanding challenges faced by the neuroscientific community today. Primarily, this research aims to expand the depth, field-of-view, and temporal throughput of multiphoton microscopy to enable large volume imaging of microvasculature at greater acquisition speeds. To accomplish this, we combine multi-faceted efforts focused on the engineering and development of advanced multiphoton microscopy techniques and technologies. This includes the characterization of novel contrast agents, the optimization of scan system optics, and the integration of high-repetition rate lasers with a resonant galvanometer. In addition, we develop a two-color imaging system capable of enhancing excitation efficiency, improving signal-to- background ratio, and further extending imaging depth. Finally, we present a novel application for two-color non-degenerate mode mixing to effectively circumvent the diffraction-limited nature of optical resolution and enable subcellular imaging. Collectively, these efforts advance the state-of-the art of multiphoton microscopy for routine cerebrovascular and neuroimaging.
Predictions of improved confinement in SPARC via energetic particle turbulence stabilization
Creators: name: Di Siena, A.
name: Rodriguez-Fernandez, P.
name: Howard, N. T.
name: Navarro, A. Banon
name: Bilato, R.
name: Goerler, T.
name: Poli, 1 E.
name: Merlo, G.
name: Wrigh, J.
name: Greenwald, M.
name: Jenko, F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The recent progress in high-temperature superconductor technologies has led to the design and construction of SPARC, a compact tokamak device expected to reach plasma breakeven with up to $25$MW of external ion cyclotron resonant heating (ICRH) power. This manuscript presents local (flux-tube) and radially global gyrokinetic GENE (Jenko et al 2000 Phys. Plasmas {\bf 7} 1904) simulations for a reduced-field and current H-mode SPARC scenario showing that supra-thermal particles - generated via ICRH - strongly suppress ion-scale turbulent transport by triggering a fast ion-induced anomalous transport barrier (F-ATB). The trigger mechanism is identified as a wave-particle resonant interaction between the fast particle population and plasma micro-instabilities (Di Siena et al 2021 Phys. Rev. Lett. {\bf 125} 025002). By performing a series of global simulations employing different profiles for the thermal ions, we show that the fusion gain of this SPARC scenario could be substantially enhanced up to $\sim 80\%$ by exploiting this fast ion stabilizing mechanism. A study is also presented to further optimize the energetic particle profiles, thus possibly leading experimentally to an even more significant fusion gain.
Notch signaling modulates proliferation and differentiation of intestinal crypt base columnar stem cells
Creators: name: Magness, Scott T.
name: Samuelson, Linda C.
name: Carulli, Alexis J.
name: Grosse, Ann S.
name: Puthoff, Brent J.
name: Siebel, Christian
name: VanDussen, Kelli L.
name: Maillard, Ivan
name: Dempsey, Peter J.
name: Ernst, Stephen A.
name: Tsai, Yu Hwai
name: Kolterud, Åsa
name: Patel, Sanjeevkumar R.
name: Tran, Ivy T.
name: Gumucio, Deborah L.
name: Keeley, Theresa M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Notch signaling is known to regulate the proliferation and differentiation of intestinal stem and progenitor cells; however, direct cellular targets and specific functions of Notch signals had not been identified. We show here in mice that Notch directly targets the crypt base columnar (CBC) cell to maintain stem cell activity. Notch inhibition induced rapid CBC cell loss, with reduced proliferation, apoptotic cell death and reduced efficiency of organoid initiation. Furthermore, expression of the CBC stem cell-specific marker Olfm4 was directly dependent on Notch signaling, with transcription activated through RBP-Jκ binding sites in the promoter. Notch inhibition also led to precocious differentiation of epithelial progenitors into secretory cell types, including large numbers of cells that expressed both Paneth and goblet cell markers. Analysis of Notch function in Atoh1-deficient intestine demonstrated that the cellular changes were dependent on Atoh1, whereas Notch regulation of Olfm4 gene expression was Atoh1 independent. Our findings suggest that Notch targets distinct progenitor cell populations to maintain adult intestinal stem cells and to regulate cell fate choice to control epithelial cell homeostasis.
DOWNLOADS God: An Anatomy by
Creators: name: Yates
Publisher: name: Zenodo
Year: 2024

description: God: An Anatomy by

 

 

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God: An Anatomy

 

Page: 608

Format: pdf, ePub, mobi, fb2

ISBN: 9780525520450

Publisher: Knopf Doubleday Publishing Group

 

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An Anatomy by Francesca Stavrakopoulou, In the Beginning Hebrew scholar Professor Francesca Stavrakopoulou examines the Bible's portrayal of God's body, from his head to his feet, showing how the western idea of God  A Conversation on God: An Anatomy - Facebook This event is part of our Critical Minds series held on Zoom (americanhumanist.org/CriticalMinds), and shared on AHA YouTube Channel and AHA's Center for God: An Anatomy - Smithsonian Associates But in a talk that draws on her revelatory studies, ancient religions expert Francesca Stavrakopoulou presents a vividly corporeal image of the biblical God:  God: An Anatomy - Pan Macmillan AU - Pan Macmillan Australia Beautifully written, passionately argued and frequently controversial, God: An Anatomy is cultural history on a grand scale. Three thousand years ago,  God by Francesca Stavrakopoulou | Audiobook | Audible.com God. An Anatomy - As heard on Radio 4. By: Francesca Stavrakopoulou; Narrated by: Francesca Stavrakopoulou; Unabridged Audiobook; Categories: History,  Anatomy of God Paperback - Vladimir Antonov - Amazon.com Anatomy of God [Antonov, Vladimir, Nikolenko, Mikhail] on Amazon.com. *FREE* shipping on qualifying offers. Anatomy of God.
Fundamental constraints on the abundances of chemotaxis proteins
Creators: name: Bitbol, Anne-Florence
name: Wingreen, Ned S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Flagellated bacteria, such as Escherichia coli, perform directed motion in gradients of concentration of attractants and repellents in a process called chemotaxis. The E. coli chemotaxis signaling pathway is a model for signal transduction, but it has unique features. We demonstrate that the need for fast signaling necessitates high abundances of the proteins involved in this pathway. We show that further constraints on the abundances of chemotaxis proteins arise from the requirements of self-assembly, both of flagellar motors and of chemoreceptor arrays. All these constraints are specific to chemotaxis, and published data confirm that chemotaxis proteins tend to be more highly expressed than their homologs in other pathways. Employing a chemotaxis pathway model, we show that the gain of the pathway at the level of the response regulator CheY increases with overall chemotaxis protein abundances. This may explain why, at least in one E. coli strain, the abundance of all chemotaxis proteins is higher in media with lower nutrient content. We also demonstrate that the E. coli chemotaxis pathway is particularly robust to abundance variations of the motor protein FliM.
description: 39 pages, 8 figures
Transcriptional co-regulation of neuronal migration and laminar identity in the neocortex
Creators: name: Kwan, Kenneth Y.
name: Anton, E. S.
name: Šestan, Nenad
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: The cerebral neocortex is segregated into six horizontal layers, each containing unique populations of molecularly and functionally distinct excitatory projection (pyramidal) neurons and inhibitory interneurons. Development of the neocortex requires the orchestrated execution of a series of crucial processes, including the migration of young neurons into appropriate positions within the nascent neocortex, and the acquisition of layer-specific neuronal identities and axonal projections. Here, we discuss emerging evidence supporting the notion that the migration and final laminar positioning of cortical neurons are also co-regulated by cell type- and layer-specific transcription factors that play concomitant roles in determining the molecular identity and axonal connectivity of these neurons. These transcriptional programs thus provide direct links between the mechanisms controlling the laminar position and identity of cortical neurons.
The space-time line element for static ellipsoidal objects
Creators: name: Brahma, Ranchhaigiri
name: Sen, A. K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we solved the Einstein's field equation and obtained a line element for static, ellipsoidal objects characterized by the linear eccentricity ($η$) instead of quadrupole parameter ($q$). This line element recovers the Schwarzschild line element when $η$ is zero. In addition to that it also reduces to the Schwarzschild line element, if we neglect terms of the order of $r^{-2}$ or higher which are present within the expressions for metric elements for large distances. Furthermore, as the ellipsoidal character of the derived line element is maintained by the linear eccentricity ($η$), which is an easily measurable parameter, this line element could be more suitable for various analytical as well as observational studies.
Angular momentum in spin-phonon processes
Creators: name: Garanin, D. A.
name: Chudnovsky, E. M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Quantum theory of spin relaxation in the elastic environment is revised with account of the concept of a phonon spin recently introduced by Zhang and Niu (PRL 2014). Similar to the case of the electromagnetic field, the division of the angular momentum associated with elastic deformations into the orbital part and the part due to phonon spins proves to be useful for the analysis of the balance of the angular momentum. Such analysis sheds important light on microscopic processes leading to the Einstein - de Haas effect.
description: 6 pages, 1 figure
Endoreplication and polyploidy: insights into development and disease
Creators: name: Duronio, Robert J.
name: Fox, Donald T.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Polyploid cells have genomes that contain multiples of the typical diploid chromosome number and are found in many different organisms. Studies in a variety of animal and plant developmental systems have revealed evolutionarily conserved mechanisms that control the generation of polyploidy and have recently begun to provide clues to its physiological function. These studies demonstrate that cellular polyploidy plays important roles during normal development and also contributes to human disease, particularly cancer.
PDF [DOWNLOAD] A Fire at the Exhibition by T E Kinsey on Iphone
Creators: name: Burt
Publisher: name: Zenodo
Year: 2024

description: A Fire at the Exhibition by T E Kinsey

 

 

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A Fire at the Exhibition

T E Kinsey

Page: 334

Format: pdf, ePub, mobi, fb2

ISBN: 9781662512940

Publisher: Amazon Publishing

 

Text message book download A Fire at the Exhibition by T E Kinsey

May 1912. After the previous year’s deadly heatwave, it’s been an uneventful spring in Littleton Cotterell. Though for Lady Hardcastle and her fiercely loyal lady’s maid Flo, at least there are the provincial delights of the village’s inaugural art exhibition—and bicycle race—to look forward to. But at the exhibition opening, there’s a panicked shout of ‘Fire!’ In the confusion, the main attraction—an extremely expensive book—is stolen from under everyone’s nose, as is a valuable painting lent by Sir Hector Farley-Stroud. Then the race, which starts as a charming day out, ends in a shocking death. And to top it all off, the Farley-Strouds reveal they’re in debt and might lose their house. The sleuthing duo soon find themselves torn between a murder investigation, an art theft mystery, and trying to help their pals. All with a suspicious figure from Flo’s past, a supercilious insurance investigator, and a pair of rather bizarre treasure hunters on the loose…

On My Radar: T.E. Kinsey's A Fire at the Exhibition!Fire/Land: The ExhibitionOnline Exhibition - Out of the Ashes: A NewBrass, Steel and FireForest Fire Exhibition - This is Reno EventsFire Dream Exhibition – Harvard FAS CAMLabEarth & Fire ExhibitionForm & Fire: American Studio Ceramics from the E. JohnMuseum Exhibition: Fire and ClayMuseum Opens In-House Curated FIRE! ExhibitionA Fire at the Exhibition: 10 (A Lady Hardcastle Mystery)Teotihuacan: City of Water, City of FireFire FightingFire Arts Members Exhibition A 10th Anniversary Celebration
Bloch Surface Wave-atom Coupling in Periodic Photonic Structure
Creators: name: Salmanpour, M. Asadolah
name: Mosleh, M.
name: Hamidi, S. M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Considering efforts for hot atom vapor-nanophotonic integration as a new paradigm in quantum optics in this paper we introduce 1D photonic crystal-Rb vapor cell as structure with miniaturized interaction volume. The Bloch surface wave excited on surface of a photonic crystal as electromagnetic hosting photonic mode, and altered the optical response of Rb atoms in the vicinity of surface. Coupling of atomic states with BSW confined modes would lead to quantum interference effects and results in nonlinearities in resonant coupling of atoms with BSW. We show Bloch surface wave induced transparency is highly stable under a change of incidence angle. Our results show slight changes in transitions detunings due to nonlinear interactions like the Casimir-Polder effect under change of localized density of optical states.
description: 15 pages, 4 figures
[ePub] TREBEP VERSION MARTINA: RDLEG 5/2015, DE 30 DE OCTUBRE. TEXTO LEGAL (2ª ED.) descargar gratis
Creators: name: Edwards
Publisher: name: Zenodo
Year: 2024

description: TREBEP VERSION MARTINA: RDLEG 5/2015, DE 30 DE OCTUBRE. TEXTO LEGAL (2ª ED.) de VICENTE VALERA

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TREBEP VERSION MARTINA: RDLEG 5/2015, DE 30 DE OCTUBRE. TEXTO LEGAL (2ª ED.)

VICENTE VALERA

Número de páginas: 232

Idioma: CASTELLANO

Formatos: Pdf, ePub, MOBI, FB2

ISBN: 9788430978519

Editorial: TECNOS

Año de edición: 2019

 

 

 

 

 

Descarga gratuita de libros electrónicos Epub TREBEP VERSION MARTINA: RDLEG 5/2015, DE 30 DE OCTUBRE. TEXTO LEGAL (2ª ED.) de VICENTE VALERA CHM PDB en español

 

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En esta obra, Vicente, junto a la diseñadora gráfica Cinthia Moure, ofrece una versión fácil estudio sobre el Texto Refundido de la Ley del Estatuto Básico del Empleado Público, al objeto de favorecer el empleo de la memoria visual, algo tradicionalmente poco empleado en el mundo jurídico. Como bien es sabido esta norma tiene un papel destacadísimo en la totalidad de programas oficiales / oposiciones de ámbito administrativo de las diferentes Administraciones Públicas (Administración General del Estado, Comunidades Autónomas, Entidades Locales, Universidades Públicas, Sanitarias, etc.) y en consecuencia, su dominio es requerido para superar los mismos. La obra continúa la senda iniciada por Vicente Valera y la Editorial Tecnos en septiembre de 2016 y se añade al resto de las obras realizadas hasta la fecha en " versión Martina " . IG / FACEBOOK: @1040Preguntas / @elsellodechinin
Oesophageal and sternohyal muscle fibres are novel Pax3-dependent migratory somite derivatives essential for ingestion
Creators: name: Fan, Chen Ming
name: Rawls, John F.
name: Williams, Victoria C.
name: Hinits, Yaniv
name: Hughes, Simon M.
name: Low, Siew Hui
name: Minchin, James E.N.
name: Tandon, Panna
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Striated muscles that enable mouth opening and swallowing during feeding are essential for efficient energy acquisition, and are likely to have played a fundamental role in the success of early jawed vertebrates. The developmental origins and genetic requirements of these muscles are uncertain. Here, we determine by indelible lineage tracing in mouse that fibres of sternohyoid muscle (SHM), which is essential for mouth opening during feeding, and oesophageal striated muscle (OSM), which is crucial for voluntary swallowing, arise from Pax3-expressing somite cells. In vivo Kaede lineage tracing in zebrafish reveals the migratory route of cells from the anteriormost somites to OSM and SHM destinations. Expression of pax3b, a zebrafish duplicate of Pax3, is restricted to the hypaxial region of anterior somites that generate migratory muscle precursors (MMPs), suggesting that Pax3b plays a role in generating OSM and SHM. Indeed, loss of pax3b function led to defective MMP migration and OSM formation, disorganised SHM differentiation, and inefficient ingestion and swallowing of microspheres. Together, our data demonstrate Pax3-expressing somite cells as a source of OSM and SHM fibres, and highlight a conserved role of Pax3 genes in the genesis of these feeding muscles of vertebrates.