cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Some new indicators derived from vanillin: 4-hydroxy-3-methoxy-[beta]-nitrostyrene and homologues.
Creators: name: Stewart, Ross
Publisher: name: University of British Columbia
Year: 2012

description: Vanillin has been condensed with certain nitroparaffins to produce four compounds with indicator properties. The benzoyl derivatives of two of these were also synthesized. The colour change, pH range, and indicator constant were measured for each of the four indicators.
Size-structured populations: immigration, (bi)stability and the net growth rate
Creators: name: Farkas, Jozsef Z.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Analysis of PDEs (math.AP)
subject: Spectral Theory (math.SP)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Mathematics
subject: FOS: Biological sciences
subject: 92D25, 47D06, 35B35

description: We consider a class of physiologically structured population models, a first order nonlinear partial differential equation equipped with a nonlocal boundary condition, with a constant external inflow of individuals. We prove that the linearised system is governed by a quasicontraction semigroup. We also establish that linear stability of equilibrium solutions is governed by a generalized net reproduction function. In a special case of the model ingredients we discuss the nonlinear dynamics of the system when the spectral bound of the linearised operator equals zero, i.e. when linearisation does not decide stability. This allows us to demonstrate, through a concrete example, how immigration might be beneficial to the population. In particular, we show that from a nonlinearly unstable positive equilibrium a linearly stable and unstable pair of equilibria bifurcates. In fact, the linearised system exhibits bistability, for a certain range of values of the external inflow, induced potentially by Allée-effect.
description: to appear in Journal of Applied Mathematics and Computing
Additional file 2 of The ratio of monocytes to lymphocytes multiplying platelet predicts incidence of pulmonary infection-related acute kidney injury
Creators: name: Shen, Bo
name: Zou, Zhouping
name: Li, Yang
name: Jia, Ping
name: Xie, Yeqing
name: Gong, Shaomin
name: Teng, Jie
name: Xu, Jiarui
name: Yang, Cheng
name: Ding, Xiaoqiang
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: Computational Biology

description: Additional file 2: Table S2. Levels of CRP and PCT and risk stratification for AKI.
title: Document Flash Thermography
Creators: name: Larsen, Cory A.
Publisher: name: Utah State University
Year: 2011

description: This thesis presents the application of ash thermography techniques to the analysis of documents. The motivation for this research is to develop the ability to non-destructively reveal covered writings in archaeological artifacts such as the Codex Selden or Egyptian car- tonnage. Current common signal processing techniques are evaluated for their effectiveness in enhancing subsurface writings found within a set of test documents. These processing techniques include: false colorization, contrast stretching, histogram equalization, median altering, Gaussian low-pass altering, layered signal reconstruction and thermal signal reconstruction (TSR), several contrast image definitions, differential absolute contrast (DAC), correlated contrast, derivative images, principal component thermography (PCT), dynamic thermal tomography (DTT), pulse phase thermography (PPT), tying-correlation analysis (FCA), Hough transform thermography (PTHTa), and transmission line matrix tying algorithm (TLMFa). New processing techniques are developed and evaluated against the existing techniques. The ability of ash thermography coupled with processing techniques to reveal subsurface writings and document strikeouts is evaluated. Flash thermography parameters are evaluated to determine most eeffective value for the document. In summary, this thesis reports the following contributions to the existing scientific knowledge: 1. A comprehensive analysis of existing pulsed thermography processing techniques. 2. New pulsed thermography processing techniques that improve upon the results of the existing techniques were developed. 3. A proof-of-concept for detecting subsurface ink writings in documents. 4. Varies the capability of pulsed thermography techniques to detect document strike- outs. 5. Demonstrates the ability to enhance surface writings based on differences in thermal characteristics when optical characteristics do not vary significantly. 6. Demonstrates that pulsed thermography significantly improves upon multi-spectral imaging for subsurface and surface writing enhancement. 7. Provides an evaluation of ash thermography parameters for the most effective document imaging.
Sorridi, da queste stelle ti potrebbero guardare
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2020

Un nuovo studio pubblicato su Mnras riporta la lista di 1004 stelle di sequenza principale, tutte entro circa 300 anni luce dalla Terra, attorno alle quali potrebbero orbitare pianeti nelle rispettive zone abitabili. La posizione di questi esopianeti è tale per cui un osservatore su di essi sarebbe in grado di rilevare facilmente la Terra – e le tracce chimiche della vita – con il metodo dei transiti
Small world-Fractal Transition in Complex Networks: Renormalization Group Approach
Creators: name: Rozenfeld, Hernán D.
name: Song, Chaoming
name: Makse, Hernán A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We show that renormalization group (RG) theory applied to complex networks are useful to classify network topologies into universality classes in the space of configurations. The RG flow readily identifies a small-world/fractal transition by finding (i) a trivial stable fixed point of a complete graph, (ii) a non-trivial point of a pure fractal topology that is stable or unstable according to the amount of long-range links in the network, and (iii) another stable point of a fractal with short-cuts that exists exactly at the small-world/fractal transition. As a collateral, the RG technique explains the coexistence of the seemingly contradicting fractal and small-world phases and allows to extract information on the distribution of short-cuts in real-world networks, a problem of importance for information flow in the system.
title: ÐÐ²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»ÑÐ½ÑÐ¹ Ð´Ð¸Ð·ÐµÐ»ÑÐ½ÑÐ¹ Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑÑ 150 ÐºÐÑ
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: Ð¡ÐµÑÑÐºÐ¾Ð², ÐÐµÐ½Ð¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2016
Subjects: Ð´Ð¸Ð·ÐµÐ»ÑÐ½ÑÐµ Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ð¸
Ð»ÐµÐ³ÐºÐ¾Ð²ÑÐµ Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»Ð¸
Ð³ÑÑÐ·Ð¾Ð²ÑÐµ Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»Ð¸

description: Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ Ð·Ð°ÐºÐ»ÑÑÐ°ÐµÑÑÑ Ð² ÑÐ°ÑÑÐµÑÐµ ÑÐ°Ð±Ð¾ÑÐ¾ÑÐ¿Ð¾ÑÐ¾Ð±Ð½Ð¾Ð³Ð¾ Ð´Ð¸Ð·ÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ñ Ð¿ÑÐ¸ Ð¼Ð°ÐºÑÐ¸Ð¼Ð°Ð»ÑÐ½Ð¾Ð¹ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½ ÑÐµÐ¿Ð»Ð¾Ð²Ð¾Ð¹, Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¸Ð¹ Ð¸ Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÐ½Ð¾Ð¹ ÑÐ°ÑÑÐµÑÑ. ÐÐ¾ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÐ¼ ÑÐ°ÑÑÐµÑÐ°Ð¼ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ñ Ð¿ÑÐ¾Ð´Ð¾Ð»ÑÐ½ÑÐ¹ Ð¸ Ð¿Ð¾Ð¿ÐµÑÐµÑÐ½ÑÐ¹ ÑÐ°Ð·ÑÐµÐ·Ñ Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ñ.
Anti-fibrotic effect of a novel PPAR-γ ligand, GED-0507-34 LEVO, in DSS induced colonic fibrosis in mice
Creators: name: Vetuschi, Antonella
name: Sferra, Roberta
name: Pompili, Simona
name: Speca, Silvia
name: Desreumaux, Pierre
name: Gaudio, Eugenio
name: Latella, Giovanni
Publisher: name: Italian Journal of Anatomy and Embryology
Year: 2014
Subjects: Animal models; Intestinal Fibrosis; TGFβ1/Smads

description: Intestinal fibrosis is a common complication of inflammatory bowel disease (IBD) in which chronic inflammation leads to abnormal deposition of extracellular matrix components (ECM) causing obstruction and loss of function of the intestinal tract involved (1). Fibrogenesis is mainly regulates by trasforming growth factor (TGF) β/Smad pathway and a key antagonist of this signaling is represented by peroxisome proliferator-activated receptor (PPAR)-γ. As the anti-inflammatory drugs currently used in IBD are unable to improve intestinal fibrosis the exploration of new therapeutical approaches has now became crucial (2). Aim of this study is to evaluate the antifibrotic action of a novel PPARγ agonist, GED-0507-34-LEVO (GED), in colon fibrosis in mice. Chronic colitis and fibrosis were induced in C57BL/6 mice by administration of 2,5% (w/v) dextrane sulphate sodium (DSS) in drinking water for 5 days followed by 7 days of water for 3 cycles. Mice were divided into 3 groups: DSS, DSS+GED and control. 30mg/Kg/mice of GED was daily administrated by oral gavage starting from the second DSS cycle. Samples from colon were excised and processed to assess macroscopic lesions, histological and morphometrical aspects and immunohistochemical and immunoblotting analysis for TGFβ1, CTGF, collagen types I-III, Smad3,α-SMA. Evident shortening and dilation in the most of colons of DSS treated mice were observed. Macroscopic and microscopic findings were significantly improved in DSS mice+GED compared with control mice. The tissue levels of collagen and α-SMA, specific markers of fibrosis, resulted significantly increased in mice receving DSS compared to control mice, as well as the expression of TGFβ1, CTGF, Smad3. DSS+GED group showed reduced expression of all markers involved. GED significantly improves the intestinal fibrotic lesions in DSS chronic colitis murine model and controls the pivotal molecular events leading to fibrosis.
description: Italian Journal of Anatomy and Embryology, Vol 118, No 2 (Supplement) 2013
La fantasia dell’astronomia
Creators: Claudia Mignone
Publisher: name: Media Inaf
Year: 2020

Per celebrare l'eredità culturale, letteraria ma anche scientifica di Gianni Rodari, nato esattamente cento anni fa, l’Inaf invita gli studenti della scuola primaria e secondaria di primo grado a partecipare a un concorso di scrittura creativa a tema astronomico. Ispirazioni dal cosmo saranno presenti anche nella “maratona live” dedicata allo scrittore, organizzata oggi dalle Biblioteche di Roma
Oligomerizing ability of newly made human Hsp60 with its mitochondrial import signal
Creators: name: Vilasi, S.
name: Carrotta, R.
name: Mangione, M.R.
name: Campanella, C.
name: Palumbo Piccionello, A.
name: Librizzi, F.
name: Martorana, V.
name: Ortore, M.G.
name: Marino Gammazza, A.
name: Vilasi, A.
name: Burgio, G.
name: Corona, D.
name: Zummo, G.
name: Bulone, D.
name: Conway De Macario, E.
name: Macario, A.J.L.
name: San Biagio, P.L.
name: Cappello, F.
Publisher: name: Italian Journal of Anatomy and Embryology
Year: 2014

description: It is currently accepted that the human Hsp60 resides and works not only in the mitochondria, the canonical residence, but also outside it. It is also known that Hsp60 although coded by a nuclear gene is synthesized in the cytosol and includes an N-terminal mitochondrial import signal (MIS), which directs the polypeptide toward the inside of the organelle where the MIS is removed. Therefore, there are at least two functional types of Hsp60, with and without MIS, the former in the cytosol the latter inside the mitochondria. A key question is: how do these two forms of Hsp60 differ beyond the fact that while one has MIS the other lacks it? How presence or absence of MIS affects the ability of Hsp60 to form oligomers, which are considered important for chaperoning peptides and assist them to reach a native state? We report here our initial observations on this issue. Typically, in the mitochondria, Hsp60 forms ring-shaped heptamers, two of which associate to build a barrel-shaped tetradecamer, the functional chaperoning complex. It is not known if the cytosolic Hsp60 with its MIS, also forms hepta- and tetradecamers. A clarification of this issue will most likely shed light on the physiological functions of extramitochondrial Hsp60, and also on its pathogenic role in Hsp60 chaperonopathies. Consequently, we compared recombinant Hsp60 bearing the MIS with the prokaryotic ortholog GroEL, which under normal conditions forms functional double-ring tetradecamers. Characteristic hydrodynamic sizes of the oligomeric complex for both systems were investigated by small angle X-ray (SAXS) and static and dynamic light scattering (SLS and DLS) in solution under similar physicochemical conditions. High Performance Liquid Chromatography (HPLC) and blue native polyacrylamide-gel electrophoresis were used to further clarify the equilibrium between the different oligomeric species of the two proteins over a wide range of concentrations. Hsp60 with MIS formed hepta- and tetradecamers similarly to GroEL. Oligomerization was dependent on concentration for GroEL and Hsp60, but for the latter, formation of larger oligomers, e.g., tetradecamers, required higher concentrations than the former.
description: Italian Journal of Anatomy and Embryology, Vol 118, No 2 (Supplement) 2013
Tag-gato Bennu: ecco le foto del campionamento
Creators: Valentina Guglielmo
Publisher: name: Media Inaf
Year: 2020

Ottantadue fotogrammi a distanza di poco più di un secondo. Quasi cinque, concitatissimi, minuti in cui Osiris-Rex se l’è cavata da solo – e se l’è cavata pure bene, pare. Le immagini convincono, il campionamento è avvenuto e il sito in cui il braccio della sonda è atterrato sembra essere ottimale. Ora, l'attesa è tutta per la stima della massa raccolta
title: Ð Ð°ÑÑÐµÑ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² ÐÐ­Ð¡ Ð½Ð° Ð¾. ÐÐ¾ÑÐ»Ð¸Ð½ Ñ ÑÑÐµÑÐ¾Ð¼ Ð»Ð¾Ð³Ð¸ÑÑÐ¸ÐºÐ¸ Ð¸ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐµÐ¹ Ð²Ð¾Ð·Ð²ÐµÐ´ÐµÐ½Ð¸Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
Creators: name: ÐÐ°Ð·Ð¸Ð·Ð¾Ð², Ð Ð¸ÑÑÐ°Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2018
Subjects: Ð¾ÑÑÑÐ¾Ð² ÐÐ¾ÑÐ»Ð¸Ð½
Ð²ÐµÑÑÐ¾ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ð¹ Ð¿Ð¾ÑÐµÐ½ÑÐ¸Ð°Ð»
ÑÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ð½Ð°Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑ
ÑÑÐ½Ð´Ð°Ð¼ÐµÐ½Ñ
Ð»Ð¾Ð³Ð¸ÑÑÐ¸ÐºÐ°

description: Ð ÑÐ°Ð±Ð¾ÑÐµ Ð±ÑÐ»Ð¾ Ð¾Ð±Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¾ ÑÐ°Ð·Ð¼ÐµÑÐµÐ½Ð¸Ðµ Ð²ÐµÑÑÐ¾ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÐ°Ð½ÑÐ¸Ð¸ Ð½Ð° Ð¾ÑÑÑÐ¾Ð²Ðµ ÐÐ¾ÑÐ»Ð¸Ð½ ÐÐµÐ½Ð¸Ð½Ð³ÑÐ°Ð´ÑÐºÐ¾Ð¹ Ð¾Ð±Ð»Ð°ÑÑÐ¸ Ñ ÑÑÐµÑÐ¾Ð¼ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð², ÑÐ²ÑÐ·Ð°Ð½Ð½ÑÑ Ñ Ð´Ð¾ÑÑÐ°Ð²ÐºÐ¾Ð¹, ÑÑÐ°Ð½ÑÐ¿Ð¾ÑÑÐ¸ÑÐ¾Ð²ÐºÐ¾Ð¹ Ð´Ð»Ð¸Ð½Ð½Ð¾Ð¼ÐµÑÐ½ÑÑ ÑÐ¾ÑÑÐ°Ð²Ð»ÑÑÑÐ¸Ñ ÐÐ­Ð£, Ð° ÑÐ°ÐºÐ¶Ðµ Ð±ÑÐ»Ð° ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° ÑÑÐµÐ¼Ð° Ð²Ð¾Ð·Ð²ÐµÐ´ÐµÐ½Ð¸Ñ ÐÐ­Ð£ Ð½Ð° ÑÑÐµÑÐ½ÐµÐ½Ð½Ð¾Ð¹ ÑÐµÑÑÐ¸ÑÐ¾ÑÐ¸Ð¸. ÐÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½ ÑÐ°ÑÑÐµÑ Ð²ÐµÑÑÐ¾ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿Ð¾ÑÐµÐ½ÑÐ¸Ð°Ð»Ð° Ð² Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð¼ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐµ WindPRO. ÐÑÐ»Ð° Ð²ÑÐ±ÑÐ°Ð½Ð° ÐÐ­Ð£ ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸ Vestas - Vestas V100 â 2.0 MW. Ð ÑÐ¾ÑÑÐ°Ð² ÐÐ­Ð¡ Ð²ÑÐ¾Ð´ÑÑ 3 ÐÐ­Ð£ ÑÑÐ¼Ð¼Ð°ÑÐ½Ð¾Ð¹ ÑÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ð½Ð¾Ð¹ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑÑ 6 ÐÐÑ. ÐÑÐ¿Ð¾Ð»Ð½ÐµÐ½ ÑÐ°ÑÑÐµÑ ÑÐ²Ð°Ð¹Ð½Ð¾Ð³Ð¾ ÑÑÐ½Ð´Ð°Ð¼ÐµÐ½ÑÐ° Ð´Ð»Ñ ÐÐ­Ð£. Ð Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð¼ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐµ ÐÐ»ÑÑ â ÐÐ½Ð²ÐµÑÑ 6 Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½ ÑÐ°ÑÑÐµÑ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð° Ð´Ð°Ð½Ð½Ð¾Ð¹ ÐÐ­Ð¡.
Mezzogiorno di quasar
Creators: Redazione Media Inaf
Publisher: name: Media Inaf
Year: 2020

Hanno osservato come etologi il comportamento e la relazione con l’ambiente circostante di nove quasar iperluminosi, quelli con luminosità pari a un milione di miliardi di volte quella del Sole. E hanno scoperto che all’iperattività delle loro galassie contribuiscono alcune galassie circostanti estremamente vicine. Lo studio, guidato da Manuela Bischetti dell’Inaf di Trieste, è in uscita su Astronomy & Astrophysics
Determining the $η-η'$ mixing by the newly measured $BR(D(D_s)\toη(η')+\bar l+ν_l$
Creators: name: Ke, Hong-Wei
name: Li, Xue-Qian
name: Wei, Zheng-Tao
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The mixing of $η-η'$ or $η-η'-G$ is of a great theoretical interest, because it concerns many aspects of the underlying dynamics and hadronic structure of pseudoscalar mesons and glueball. Determining the mixing parameters by fitting data is by no means trivial. In order to extract the mixing parameters from the available processes where hadrons are involved, theoretical evaluation of hadronic matrix elements is necessary. Therefore model-dependence is somehow unavoidable. In fact, it is impossible to extract the mixing angle from a unique experiment because the model parameters must be obtained by fitting other experiments. Recently $BR(D\toη+\bar l+ν_l)$ and $BR(D_s\toη(η')+\bar l+ν_l)$ have been measured, thus we are able to determine the $η-η'$ mixing solely from the semileptonic decays of D-mesons where contamination from the final state interactions is absent. Thus we hope that the model-dependence of the extraction can be somehow alleviated. Once $BR(D\toη'+\bar l+ν_l)$ is measured, we can further determine all the mixing parameters for $η-η'-G$. As more data are accumulated, the determination will be more accurate. In this work, we obtain the transition matrix elements of $D_{(s)}\to η^{(\prime)}$ using the light-front quark model whose feasibility and reasonability for such processes have been tested.
description: 11 pages and 3 figures, some changes were made. Accepted by EPJC
The determination by physical means of infestation in fish
Creators: name: McMurtrie, Gilbert Eric
Publisher: name: University of British Columbia
Year: 2012

description: The following report is a summary of an investigation undertaken on behalf of the Canadian fishing industry, more especially the inland fisheries of the Prairie provinces, by the Fisheries Research Board of Canada. The investigation was allotted to the Pacific Fisheries Experimental Station at Vancouver, the actual work being performed in the Physics Department of the University of British Columbia. The application of physical methods to biological and other problems is becoming more prevalent. The case in hand is an example of the application of physics, more particularly the laws of light scattering, to determining the infestation of fish by Triaenophorus crassus. The arguments wherever possible have been stated in everyday language and notwithstanding the possibility of boring the informed reader, all experiments are described in detail. This, it is hoped, will accomplish two purposes. Firstly the biologist will have a better understanding of the investigation and secondly the application of physics to similar problems can be assessed. Included at the end of the section on candling is an attempt to explain the formation of shadows by objects imbedded in turbid media. The argument is first given, in simple language followed by a mathematical discussion. The complexity of the theory of scattered light in terms of ultimate processes need not be stressed. A treatment based on the theory of M. Born is found in Appendix I.
Lungo le antiche vie dell’idrogeno con Thor
Creators: Marco Malaspina
Publisher: name: Media Inaf
Year: 2020

Mappando con le antenne del Very Large Array la riga a 21 dell’idrogeno atomico neutro, un team d’astronomi guidato da Juan Diego Soler del Max Planck Institut für Astronomie ha ricostruito la mappa a oggi più dettagliata dell’intricata rete di filamenti del gas che nutre la formazione stellare
title: ÐÑÐµÐ½ÐºÐ° ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð¼Ð¾Ð´ÐµÑÐ½Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð°Ð²ÑÐ¾Ð·Ð°Ð¿ÑÐ°Ð²Ð¾ÑÐ½ÑÑ ÑÑÐ°Ð½ÑÐ¸Ð¹ Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³Ð°
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÑÑÐ¾Ð², ÐÐ»ÑÑ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2017
Subjects: Ð°Ð²ÑÐ¾Ð·Ð°Ð¿ÑÐ°Ð²Ð¾ÑÐ½ÑÐµ ÑÑÐ°Ð½ÑÐ¸Ð¸
Ð¼Ð¾Ð´ÐµÑÐ½Ð¸Ð·Ð°ÑÐ¸Ñ Ð°Ð²ÑÐ¾Ð·Ð°Ð¿ÑÐ°Ð²Ð¾Ðº
ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð¾ Ð°Ð²ÑÐ¾Ð·Ð°Ð¿ÑÐ°Ð²Ð¾Ðº
ÑÑÐ½Ð¾Ðº ÐÐÐ¡

description: ÐÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ð° Ð¾ÑÐµÐ½ÐºÐ° ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð¼Ð¾Ð´ÐµÑÐ½Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð°Ð²ÑÐ¾Ð·Ð°Ð¿ÑÐ°Ð²Ð¾ÑÐ½ÑÑ ÑÑÐ°Ð½ÑÐ¸Ð¹ Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³Ð°. ÐÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð° ÑÑÐ°Ð²Ð½Ð¸ÑÐµÐ»ÑÐ½Ð°Ñ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ° ÐÐÐ¡ Ð¿Ð¾ ÑÐ°Ð¹Ð¾Ð½Ð°Ð¼ Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³Ð°, Ñ ÑÑÐµÑÐ¾Ð¼ ÑÐ¸ÑÐ»ÐµÐ½Ð½Ð¾ÑÑÐ¸ Ð½Ð°ÑÐµÐ»ÐµÐ½Ð¸Ñ Ð¸ Ð¿Ð»Ð¾ÑÐ°Ð´Ð¸ ÑÐµÑÑÐ¸ÑÐ¾ÑÐ¸Ð¸. ÐÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ñ Ð³ÑÐ°Ð½Ð¸ÑÑ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð° Ð°Ð²ÑÐ¾Ð·Ð°Ð¿ÑÐ°Ð²Ð¾ÑÐ½ÑÑ ÑÑÐ°Ð½ÑÐ¸Ð¹ Ð² Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³Ðµ. ÐÑÐ¿Ð¾Ð»Ð½ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÑÐ½ÐºÐ° ÐÐÐ¡. ÐÑÑÐ²Ð»ÐµÐ½Ñ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐ¸ ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð° Ð¸ Ð¼Ð¾Ð´ÐµÑÐ½Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð°Ð²ÑÐ¾Ð·Ð°Ð¿ÑÐ°Ð²Ð¾ÑÐ½ÑÑ ÑÑÐ°Ð½ÑÐ¸Ð¹. ÐÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½ ÑÐ°ÑÑÐµÑ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»ÐµÐ¹ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð° Ð¸ ÑÐµÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ ÐÐÐ¡.
Vulcano o crosta: questo è il dilemma
Creators: Luca Nardi
Publisher: name: Media Inaf
Year: 2020

Un team di ricercatori statunitensi ha condotto un nuovo studio sui vulcani di Io, satellite di Giove, scoprendo che quasi la metà dei composti di zolfo presenti in atmosfera sono prodotti dalla loro attività. Lo studio è in pubblicazione su The Planetary Science Journal
Emerging roles of CXCL12-bearing microvesicles in glio-vascular communication during human brain development
Creators: name: Virgintino, Daniela
name: Rizzi, Marco
name: Errede, Mariella
name: Frei, Karl
name: Roncali, Luisa
Publisher: name: Italian Journal of Anatomy and Embryology
Year: 2014
Subjects: CXC chemokines; cell-cell communication; microvesicles; brain vascularization

description: The CXC chemokine axis formed by CXCL12 and its receptors CXCR4/CXCR7 is involved in CNS development enhancing migration and differentiation of neuronal precursors [1, 2]. According to these data, our recent studies have demonstrated that during human cerebral cortex development, radial glia (RG) cells express high levels of CXCL12, which finds its receptor on migrating postmitotic neuroblasts [3]. Moreover, during this first survey we have also revealed the ligand concentrated in RG processes and in astrocyte endfeet in contact with the microvessel wall. Features and distribution of these glio-vascular contacts have been further studied to ascertain the possible involvement of the glial CXC ligand/receptor system in vessel growth and differentiation. The study was carried out on human telencephalon by laser confocal and transmission electron microscopy to detect the expression of chemokine CXCL12 together with specific glio-vascular markers and reveal subcellular details of the identified cell structures. Immunolabelling for CXCL12 showed the highest level of RG CXCL12-enriched vascular contacts in the subcortical layers, where the chemokine concentrated in small swellings that appeared at intervals along the RG fibres. These RG varicosities formed en passant vascular contacts or asymmetrical enlargements that were seen to specifically bent and come in contact with the vessel wall. At the highest confocal resolution, both symmetrical and asymmetrical RG varicosities appeared filled with CXCL12 labelled dot-like structures that have been regarded as cell microvesicles (MVs). Their vesicular nature was confirmed by ultrastructural observations that allowed to recognize small membrane-bound MVs gathered in RG perivascular varicosities. Aspects of CXCL12 MV shedding also appeared a common feature of these specialized glio-vascular contacts confirming the hypothesis that RG-derived CXCL12 can be conveyed to the recipient vascular cells participating in glio-vascular communication and coordinating neuro-vascular interactions during cerebral cortex development and vascularization.
description: Italian Journal of Anatomy and Embryology, Vol 118, No 2 (Supplement) 2013
Il bolide d’autunno
Creators: Daniele Gardiol
Publisher: name: Media Inaf
Year: 2020

Avvistata due sere fa da sette fotocamere della rete Prisma mentre solcava i cieli della Toscana, la meteora si è spenta a circa 80 km di quota. L’alta velocità di ingresso in atmosfera e la significativa eccentricità dell'orbita inducono a ritenere che abbia un’origine cometaria
title: ÐÐ½Ð°ÑÐµÐ½Ð¸Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ ÑÐ¸Ð·ÐºÑÐ»ÑÑÑÑÐ½Ð¾-ÑÐ¿Ð¾ÑÑÐ¸Ð²Ð½Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸, Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð½Ð¾Ð¹ Ð½Ð° Ð³Ð°ÑÐ¼Ð¾Ð½Ð¸ÑÐ½Ð¾Ðµ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ðµ Ð»Ð¸ÑÐ½Ð¾ÑÑÐ¸
title: Significance of the model physical culture and sports activities, aimed at the harmonious development of personality
Creators: name: Ð¡ÑÐ¾Ð»ÑÑÐ¾Ð², ÐÐ»Ð°Ð´Ð¸ÑÐ»Ð°Ð²
name: "Ð¡Ð¿Ð¾ÑÑ, ÑÐµÐ»Ð¾Ð²ÐµÐº, Ð·Ð´Ð¾ÑÐ¾Ð²ÑÐµ", Ð¼ÐµÐ¶Ð´ÑÐ½Ð°ÑÐ¾Ð´Ð½ÑÐ¹ Ð½Ð°ÑÑÐ½ÑÐ¹ ÐºÐ¾Ð½Ð³ÑÐµÑÑ
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2023
Subjects: Ð¼Ð¾Ð´ÐµÐ»Ð¸ ÑÐ¸Ð·ÐºÑÐ»ÑÑÑÑÐ½Ð¾-ÑÐ¿Ð¾ÑÑÐ¸Ð²Ð½Ð¾Ð¹ Ð°ÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸
Ð³Ð°ÑÐ¼Ð¾Ð½Ð¸ÑÐ½Ð¾Ðµ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ðµ Ð»Ð¸ÑÐ½Ð¾ÑÑÐ¸
models of physical culture and sports activity
harmonious development of personality

description: Ð ÑÑÐ°ÑÑÐµ Ð¾Ð±Ð¾ÑÐ½Ð¾Ð²ÑÐ²Ð°ÐµÑÑÑ Ð¿Ð¾Ð»Ð¾Ð¶ÐµÐ½Ð¸Ðµ Ð¾ ÑÐ¾Ð¼, ÑÑÐ¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ ÑÐ¸Ð·ÐºÑÐ»ÑÑÑÑÐ½Ð¾-ÑÐ¿Ð¾ÑÑÐ¸Ð²Ð½Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸, ÐºÐ¾ÑÐ¾ÑÑÐµ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ñ Ð½Ð° Ð³Ð°ÑÐ¼Ð¾Ð½Ð¸ÑÐ½Ð¾Ðµ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ðµ Ð»Ð¸ÑÐ½Ð¾ÑÑÐ¸ Ð¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÑÑ Ð´Ð»Ñ ÑÑÐ¾Ð³Ð¾ Ð°Ð´ÐµÐºÐ²Ð°ÑÐ½ÑÐµ ÑÐ¾ÑÐ¼Ñ Ð¸ Ð¼ÐµÑÐ¾Ð´Ñ, Ð¸Ð¼ÐµÑÑ Ð¾Ð³ÑÐ¾Ð¼Ð½Ð¾Ðµ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ðµ Ð½Ðµ ÑÐ¾Ð»ÑÐºÐ¾ Ð´Ð»Ñ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ ÑÐ¸Ð·ÐºÑÐ»ÑÑÑÑÐ½Ð¾-ÑÐ¿Ð¾ÑÑÐ¸Ð²Ð½Ð¾Ð¹ Ð°ÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð³ÑÑÐ¿Ð¿ Ð½Ð°ÑÐµÐ»ÐµÐ½Ð¸Ñ, Ð½Ð¾ ÐµÐµ ÑÐ¾Ð»Ð¸ Ð² ÑÐµÑÐµÐ½Ð¸Ð¸ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ° ÑÐ¾ÑÐ¸Ð¾ÐºÑÐ»ÑÑÑÑÐ½ÑÑ Ð¸ Ð¿ÐµÐ´Ð°Ð³Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ñ Ð·Ð°Ð´Ð°Ñ.
description: The article substantiates the position that models of physical culture and sports activity, which are aimed at the harmonious development of personality and use adequate forms and methods for this, are of great importance not only for increasing physical culture and sports activity of various population groups, but its role in solving a complex of socio-cultural and pedagogical tasks.
Cold Dark Matter Isocurvature Perturbations: Constraints and Model Selection
Creators: name: Sollom, Ian
name: Challinor, Anthony
name: Hobson, Michael P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use CMB (WMAP and ACBAR), large scale structure (SDSS luminous red galaxies) and supernova (SNLS) data to constrain the possible contribution of CDM isocurvature modes to the primordial perturbation spectrum. We consider three different admixtures with adiabatic modes in a flat $Λ$CDM cosmology with no tensor modes: fixed correlations with a single spectral index; general correlations with a single spectral index; and general correlations with independent spectral indices for each mode. For fixed correlations, we verify the WMAP analysis for fully uncorrelated and anti-correlated modes, while for general correlations with a single index we find a small tightening of the constraint on the fractional contribution of isocurvature modes to the observed power over earlier work. For generally-correlated modes and independent spectral indices our results are quite different to previous work, needing a doubling of prior space for the isocurvature spectral index in order to explore adequately the region of high likelihood. Standard Markov-Chain Monte-Carlo techniques proved to be inadequate for this particular application; instead our results are obtained with nested sampling. We also use the Bayesian evidence, calculated simply in the nested-sampling algorithm, to compare models, finding the pure adiabatic model to be favoured over all our isocurvature models. This favouring is such that the logarithm of the Bayes Factor, $\mathrm{ln} B < -2$ for all models and $\mathrm{ln} B < -5$ in the cases of fully anti-correlated modes with a single spectral index (the curvaton scenario) and generally-correlated modes with a single spectral index.
description: 11 pages, 9 figures, submitted to Physical Review D; added references in Introduction, lowered descriptions of lnB in the Jeffreys' scale
Ruotare con lentezza: lo spin del buco nero centrale
Creators: Marco Malaspina
Publisher: name: Media Inaf
Year: 2020

Lo spin di Sagittarius A* non supera il 10 per cento della velocità della luce. Lo dice uno studio pubblicato su ApJL che ha come primo autore un giovane astrofisico italiano, Giacomo Fragione, laureato alla Sapienza e oggi ricercatore alla Northwestern University (Usa)
Magnetism and magnetotransport in disordered graphene
Creators: name: Rappoport, T. G.
name: Uchoa, Bruno
name: Neto, A. H. Castro
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We perform Monte Carlo simulations to study the interplay of structural and magnetic order in single layer graphene covered with magnetic adatoms. We propose that the presence of ripples in the graphene structure can lead to clustering of the adatoms and to a variety of magnetic states such as super-paramagnetism, antiferromagnetism, ferromagnetism and spin glass behavior. We derive the magnetization hysteresis and also the magnetoresistance curves in the variable range hopping regime, which can provide experimental signatures for ripple induced clustering and magnetism. We propose that the magnetic states in graphene can be controlled by gate voltage and coverage fraction.
description: 8 pages, 7 figures. Expanded version
title: A Two-Dimensional Numerical Simulation of Plasma Wake Structure Around a CubeSat
Creators: name: Mitharwal, Rajendra
Publisher: name: Utah State University
Year: 2011

description: A numerical model was developed to understand the time evolution of a wake structure around a CubeSat moving in a plasma with transonic speed. A cubeSat operates in the F2 layer of ionosphere with an altitude of 300 − 600 Km. The average plasma density varies between 10−6cm−3 − 10−9cm−3 and the temperature of ions and electrons is found between 0.1−0.2 eV. The study of a wake structure can provide insights for its effects on the measurements obtained from space instruments. The CubeSat is modeled to have a metal surface, which is a realistic assumption, with a negative electric potential. To solve the equations of plasma, the numerical difference equations were obtained by discretizing the fluid equations of the plasma along with nonlinear Poisson’s equation. The electrons were assumed to follow the Boltzmann’s relation and the dynamics of ions was followed using the fluid equations. The initial and boundary conditions for the evolution of the structure are discussed. The computation was compared to the analytical solution for a 1D problem before being applied to the 2D model. There was a good agreement between the numerical and analytical solution. In the 2D simulation, we observe the formation of plasma wake structure around the CubeSat. The plasma wake structure consists of rarefaction region where ion density and ion velocity decreases compared to the initial density and velocity.
Osiris-Rex, i cinque secondi che fecero la storia
Creators: Valentina Guglielmo
Publisher: name: Media Inaf
Year: 2020

La manovra “touch and go” di Osiris-Rex sull’asteroide Bennu – mirata alla raccolta di almeno 60 grammi di polvere superficiale per il successivo rientro a Terra – si è conclusa con successo. Obiettivo centrato per questa missione epocale, la prima dopo le missioni Apollo a portare sulla Terra un quantitativo così cospicuo di polvere extraterrestre e – diversamente dalle missioni Hayabusa, ad esempio – a saperne misurare la massa raccolta in situ
Two Lensed Lyman-alpha Emitting Galaxies at z~5
Creators: name: Bayliss, Matthew B.
name: Wuyts, Eva
name: Sharon, Keren
name: Gladders, Michael D.
name: Hennawi, Joseph F.
name: Koester, Benjamin P.
name: Dahle, Hakon
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present observations of two strongly lensed $z\sim5$ Lyman-$α$ Emitting (LAE) galaxies that were discovered in the Sloan Giant Arcs Survey (SGAS). We identify the two sources as SGAS J091541+382655, at $z=5.200$, and SGAS J134331+415455 at $z=4.994$. We measure their AB magnitudes at $(i,z)=(23.34\pm0.09,23.29\pm0.13$) mags and $(i,z)=(23.78\pm0.18,24.24^{+0.18}_{-0.16}$) mags, and the rest-frame equivalent widths of the Lyman-$α$ emission at $25.3\pm4.1$Å~and $135.6\pm20.3$Å~for SGAS J091541+382655 and SGAS J134331+415455, respectively. Each source is strongly lensed by a massive galaxy cluster in the foreground, and the magnifications due to gravitational lensing are recovered from strong lens modeling of the foreground lensing potentials. We use the magnification to calculate the intrinsic, unlensed Lyman-$α$ and UV continuum luminosities for both sources, as well as the implied star formation rates (SFR). We find SGAS J091541+382655 and SGAS J134341+415455 to be galaxies with (L$_{Ly-α}$, L$_{UV})\leq(0.6$L$_{Ly-α}^{*}, 2$L$_{UV}^{*}$) and (L$_{Ly-α}$, L$_{UV})=(0.5$L$_{Ly-α}^{*}, 0.9$L$_{UV}^{*}$), respectively. Comparison of the spectral energy distributions (SEDs) of both sources against stellar population models produces estimates of the mass in young stars in each galaxy: we report an upper limit of M$_{stars} \leq 7.9^{+3.7}_{-2.5} \times 10^{7}$ M$_{\sun} h_{0.7}^{-1}$ for SGAS J091531+382655, and a range of viable masses for SGAS J134331+415455 of $2\times10^{8}$ M$_{\sun} h_{0.7}^{-1}
description: 10 pages, 8 figures, emulate apj format, Accepted to ApJ
Expression of Brain Derivated Neurotrophic Factor (BDNF) and of its receptors in biliary epithelium: correlations with proliferation and apoptosis
Creators: name: Vivacqua, Giorgio
name: Renzi, Anastasia
name: Franchitto, Antonio
name: Carpino, Guido
name: Gaudio, Eugenio
Publisher: name: Italian Journal of Anatomy and Embryology
Year: 2014
Subjects: BDNF; neurotrophins; cholangiocytes; experimental cholestasis; neuroendocrine cells; liver diseases

description: Cholangiocytes are the cells lining the biliary tree from canals of Hering to larger bile ducts. At morphological level, we can distinguish small and large cholangiocytes, which result heterogeneous also at functional and proliferative levels (Alpini et al., 1998). Proliferating cholangiocytes are modulated by several factors including neurotrophins (Alvaro et al., 2008). BDNF is a neurotrophin expressed in the nervous system but produced also by different types of epithelial cells and by progenitor cells of neuronal and mesenchymal origin (Prakash et al., 2010). Our aim was to investigate the expression of BDNF in the biliary epithelium. The expression of BDNF and of its two receptors (TrkB and p75NT) was detected through immunohistochemistry and immunofluorescence in the biliary epithelium of normal and bile duct ligation (BDL) rat liver and of human cholastatic liver diseases. BDNF and its two receptors are expressed by small, large cholangiocytes and by Hepatic Progenitor Cells (HPC), both in normal and BDL rat livers. During BDL, the expression of BDNF and of its receptors correlates with the proliferation rate of small and large cholangiocytes. Indeed, during first two weeks of BDL, BDNF, TrkB and p75NT are highly expressed and proliferation prevails on apoptosis. After three weeks of BDL, BDNF and TrkB are slightly expressed while p75NT expression remain high and apoptosis prevails on proliferation. In vitro studies confirmed that BDNF and its receptors are expressed by small and large rat cholangiocytes. Also in human samples BDNF and its receptors are expressed in biliary epithelium, with a different intensity during chronic cholestasis. Our results suggest that BDNF plays a role in the remodeling of biliary tree during experimental cholestasis and cholestasic liver diseases.
description: Italian Journal of Anatomy and Embryology, Vol 118, No 2 (Supplement) 2013
ความคิดเห็นของเกษตรกรต่อการยอมรับการทำนาเกษตรอินทรีย์ ในอำเภอหนองฮี จังหวัดร้อยเอ็ด
Creators: name: สุเนตร ทวีถาวรสวัสดิ์
Publisher: name: คณะมนุษยศาสตร์และสังคมศาสตร์ มหาวิทยาลัยราชภัฏบ้านสมเด็จเจ้าพระยา
Year: 2565
Subjects: ความคิดเห็นของเกษตรกร
การยอมรับการทำนาเกษตรอินทรีย์
อำเภอหนองฮี
Farmers’ views
Accepting organic farming
Nong Hi District

description: วารสารมนุษยศาสตร์และสังคมศาสตร์ มหาวิทยาลัยราชภัฏบ้านสมเด็จเจ้าพระยา, 16, 1, 69-85
The involvement of Spinal Cord in MPTP-induced neurotoxicity: morphological evidence
Creators: name: Vivacqua, Giorgio
name: Vaccaro, Rosa
name: Ferrucci, Michela
name: Iannacone, Simone
name: Casini, Arianna
name: Yu, Shun
name: Fornai, Francesco
name: D’Este, Loredana
Publisher: name: Italian Journal of Anatomy and Embryology
Year: 2014
Subjects: Parkinson disease; alpha-synuclein; motor neurons; cholinergic neurons; tyrosine hydroxylase

description: Parkinson Disease (PD) is the prototype of synucleinopathies, a group of neurodegenerative disorders characterized by the accumulation of alpha-synuclein (α-syn). The involvement of spinal cord (SC) in PD is described in human autopsies, clinical reports and experimental studies [1]. The neurotoxin MPTP reproduces to a remarkable extent neuropathology of PD [2]. Furthermore, recent studies have shown that MPTP, besides dopaminergic neurons, affects also spinal Motor Neurons (MNs) [3]. To detect the effects of different MPTP treatments on the neuropathology in the SC at different ages and in different animal species. Following MPTP, neurotoxicity involves the whole thoraco-lumbar spinal cord. A model-dependent variation in the pattern of α-syn immunostaining has been detected. MNs, sympathetic pre-ganglionic neurons and calbindin immunoreactive (IR) cells of lamina VII are mostly affected, whereas TH positive fibers are spared. Alterations in α-syn positive fibers occur in the posterior laminae (I, II and III) and correlate with a significant loss of Met-Enk, SP and calbindin 28 kDa. A-syn accumulates in the affected neurons and in glial cells. Our results indicate that the SC represents a target of the parkinsonism-inducing neurotoxin MPTP. These data suggest that altered α-syn distribution associates with MPTP-induced neurotoxicity.
description: Italian Journal of Anatomy and Embryology, Vol 118, No 2 (Supplement) 2013
Additional file 5 of H3K27ac acetylome signatures reveal the epigenomic reorganization in remodeled non-failing human hearts
Creators: name: Pei, Jiayi
name: Harakalova, Magdalena
name: Treibel, Thomas A.
name: Lumbers, R Thomas
name: Boukens, Bastiaan J.
name: Efimov, Igor R.
name: van Dinter, Jip T.
name: González, Arantxa
name: López, Begoña
name: El Azzouzi, Hamid
name: van den Dungen, Noortje
name: van Dijk, Christian G. M.
name: Krebber, Merle M.
name: den Ruijter, Hester M.
name: Pasterkamp, Gerard
name: Duncker, Dirk J.
name: Nieuwenhuis, Edward E. S.
name: de Weger, Roel
name: Huibers, Manon M.
name: Vink, Aryan
name: Moore, Jason H.
name: Moon, James C.
name: Verhaar, Marianne C.
name: Kararigas, Georgios
name: Mokry, Michal
name: Asselbergs, Folkert W.
name: Cheng, Caroline
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5. Supplementary Figure 5. Gene Ontology (GO) analysis of genes annotated to DARs using ToppFun. a Molecular function enrichment for hyperacetylated regions, b Biological process for hyperacetylated regions, c Cellular component for hyperacetylated regions, d Molecular function for hypoacetylated regions, e Biological process for hypoacetylated regions, f Cellular component for hypoacetylated regions.
The gamma rays of radium and its disintegration products
Creators: name: Matthews, Frank Samuel
Publisher: name: University of British Columbia
Year: 2012

description: A short history of gamma ray investigations is given. Particular reference is made to the use of beta-ray spectrometers in these investigations, and a detailed description is given of the thin-lens beta-ray spectrometer and its auxiliary apparatus. The energies of the gamma rays of radium and of its equilibrium disintegration products are determined by measuring the momentum of the photoelectrons ejected by these gamma rays from a lead radiator. These energies agree well with the values reported by Ellis and Mann, and also agree with most of the previously unconfirmed values reported by Latyshev. Evidence is given for the existence of a gamma ray (804 Kev.) previously unreported. The energy calculations are based on a calibration using the F line of thorium B (Hϱ = 1385.6 gauss-cm.)
Light colored scalars from grand unification and the forward-backward asymmetry in top quark pair production
Creators: name: Dorsner, Ilja
name: Fajfer, Svjetlana
name: Kamenik, Jernej F.
name: Kosnik, Nejc
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The experimental results on the t bar t production cross section at the Tevatron are well described by the QCD contributions within the standard model, while the recent measurement of the forward-backward asymmetry cannot be accounted for within this framework. We consider light colored scalars appearing in a particular SU(5) GUT model within the 45-dimensional Higgs representation. A virtue of the model is that it connects the presence of a light colored SU(2) singlet (Delta_6) and a color octet weak doublet (Delta_1) with bounds on the proton lifetime, which constrain the parameter space of both scalars. We find that both the t bar t production cross section and the forward-backward asymmetry can be accommodated simultaneously within this model. The experimental results prefer a region for the mass of Delta_6 around 400 GeV, while Delta_1 is then constrained to have a mass around the TeV scale as well. We analyze possible experimental signatures and find that Delta_6 associated top production could be probed in the t bar t + jets final states at Tevatron and the LHC.
description: 12 pages, 13 figures, version as published
The estimation of body center of mass kinematics in sport: proposal of a new protocol
Creators: name: Zago, Matteo
name: Mapelli, Andrea
name: Sidequersky, Fernanda V.
name: Lovecchio, Nicola
name: Ferrario, Virgilio F.
Publisher: name: Italian Journal of Anatomy and Embryology
Year: 2014
Subjects: motion analysis; sport; center of mass; segmental centroid

description: The assessment of body Center of Mass (CoM) kinematics is an important measure in the analysis of sport movements since it is strictly related to balance and stability control [1]. Among the methods proposed to estimate CoM displacement, Segmental method appears to be suitable to investigate CoM kinematics in sport: human body is assumed as a system of rigid segments, and the whole-body CoM is calculated as the weighted average of the CoM of each segment. Each segment is defined by a set of landmarks, and their overall number represents a crucial choice in the protocol design process, being a compromise between accuracy and invasivity [2]. In the present study, using a motion capture system, we validated a protocol based upon the Segmental method, adopting a 14-landmarks anatomical model. Two sets of experiments were made. At first, our protocol was compared to the Ground Reaction Force method (GRF), accounted as a golden standard in CoM estimation. Subsequently, we investigated the aerial phase typical of many sports, comparing our protocol with: (1) an absolute reference, the parabolic regression of the vertical CoM trajectory during the time of flight; (2) two common approaches to estimate CoM kinematics in gait, known as Sacrum and Reconstructed Pelvis methods. Recognized accuracy indexes proved that the results obtained were comparable to the GRF; what is more, during the aerial phase our protocol showed to be significantly more accurate than the other two methods. The protocol assessed can therefore be adopted as a reliable tool for CoM kinematics estimation in further sport researches.
description: Italian Journal of Anatomy and Embryology, Vol 118, No 2 (Supplement) 2013
Urto sulla fiancata della Via Lattea
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2020

Un nuovo studio del Rensselaer Polytechnic Institute ha presentato le prove, trovate in prossimità della costellazione della Vergine, di una collisione laterale tra la Via Lattea e una galassia nana, avvenuto presumibilmente 2.7 miliardi di anni fa. Si tratta di strutture a guscio, nelle quali sono concentrate stelle che una volta dovevano appartenere alla galassia nana. Tutti i dettagli su ApJ
Parametric amplification of random lattice soliton swinging
Creators: name: Kartashov, Yaroslav V.
name: Vysloukh, Victor A.
name: Torner, Lluis
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We consider the propagation of solitons in media with an imprinted transverse periodic or parabolic refractive index modulation when the modulation depth slightly fluctuates along the propagation direction. We find that, under suitable spectral resonance conditions, small transverse soliton oscillations may get parametrically amplified.
description: 12 pages, 4 figures, to appear in Optics Letters
Relaxin antagonizes the effects of TGF-β/Smad3 axis on cardiac fibroblast-myofibroblast transition through the upregulation of Notch-1 signalling
Creators: name: Zecchi-Orlandini, Sandra
name: Sassoli, Chiara
name: Chellini, Flaminia
name: Pini, Alessandro
name: Nistri, Silvia
name: Bani, Daniele
name: Formigli, Lucia
Publisher: name: Italian Journal of Anatomy and Embryology
Year: 2014
Subjects: cardiac regeneration; fibroblast-myofibroblast differentiation; matrix metalloproteases; myocar- dial fibrosis; Notch-1; relaxin (RLX); Smad3; TGF-β1

description: The hormone relaxin (RLX) is produced by the heart and has beneficial actions on the cardiovascular system. We previously demonstrated that RLX stimulates mouse neonatal cardiomyocyte growth, suggesting its involvement in endogenous mechanisms of myocardial histogenesis and regeneration. In the present study, we extended the experimentation by evaluating the effects of RLX on primary cultures of neonatal cardiac stromal cells. RLX inhibited TGF-b1-induced fibroblast-myofibroblast transition, as judged by its ability to down-regulate a-smooth muscle actin and type I collagen expression. We also found that the hormone up-regulated metalloprotease (MMP)-2 and MMP-9 expression and downregulated the tissue inhibitor of metalloproteinases (TIMP)-2 in TGF-b1-stimulated cells. Interestingly, the effects of RLX on cardiac fibroblasts involved the activation of Notch-1 pathway. Indeed,Notch-1 expression was significantly decreased in TGF-b1-stimulated fibroblasts and this reduction was prevented by the addition of RLX to TGF-b1-stimulated cells. Moreover, pharmacological inhibition of endogenous Notch-1 signaling by DAPT, a g-secretase specific inhibitor, as well as the silencing of Notch-1 ligand, Jagged-1, potentiated TGF-b1-induced myofibroblast differentiation and abrogated the inhibitory effects of RLX. Interestingly, RLX and Notch-1 exerted their inhibitory effects by interfering with TGF-b1 signaling, since the addition of RLX to TGF-b1-stimulated cells caused a significant decrease in Smad3 phosphorylation, a typical downstream event of TGF-b1 receptor activation, while the treatment with a prevented this effect. These data suggest that Notch signaling can down-regulate TGF-b1/Smad3-induced fibroblast-myofibroblast transition and that RLX could exert its well known anti-fibrotic action through the up-regulation of this pathway. In conclusion, the results of the present study beside supporting the role of RLX in the field of cardiac fibrosis, provide novel experimental evidence on the molecular mechanisms underlying its effects.
description: Italian Journal of Anatomy and Embryology, Vol 118, No 2 (Supplement) 2013