Ferrarese Chronicles in the Modern Era

En 1928, Giuseppe Pardi va publicar la primera de tres cròniques del segle XV sobre Ferrara. La seua edició d'un d'aquestes tres cròniques, el Diari ferrarese dall?anno 1409 sinó al 1502, va substituir versió del segle XVIII publicada per Ludovico Muratori. Pardi va mostrar una comprensió dels reptes que presenta la transcripció de documents antics, refusant alterar aquest material i enriquint les cròniques amb un aparell crític complet. Malgrat la disponibilitat i fàcil accés a materials inimaginables fins fa poc, les transcripcions de finals del segle XX no arriben als estàndards establerts per Pardi. Aquest article explora les transcripcions de les cròniques, en particular les de Pardi, il·lustrant com els inicis del segle XX van ser una època daurada sense igual abans o després

ANALYSIS THE EFFECT OF ENTREPRENEURIAL ORIENTATIONS AND ADAPTATION OF EXTERNAL ENVIRONMENT TO SMEs PERFORMANCE WITH COMPETITIVE ADVANTAGES AS INTERVENING VARIABLES (STUDY ON SMEs FASHION SECTOR IN SEMARANG)

Phenomenon in this study is the Performance of SMEs in the Fashion Sector Micro Enterprises Semarang experiencing fierce competition and the still weak. SMEs have a dynamic business environment and full of uncertainty (such as competitors, customers, suppliers, regulators and business associations), as well as the intensity of competition is high enough that the competitiveness of SMEs is becoming weaker, which in turn makes the Performance of SMEs to be blocked. There are factors - factors that affect the competitive advantage and ultimately affect the Performance of SMEs in the Fashion Sector Micro Enterprises Semarang. The purpose of this study was to analyze the Effect of Entrepreneurial Orientation and Adaptation to the External Environment on Competitive Advantage and Performance of Micro Enterprises SMEs Fashion Sector in the city of Semarang. The population selected in this study were all SMEs assisted the Department of Cooperatives and SMEs Semarang is a 11 585 SMEs. The number of respondents that used in this study were 150 SMEs Semarang engaged in the fashion sector. The sampling technique in this research is purposive sampling method. The method of collecting data is by using a questionnaire. Data analysis method used is Structural Equation Modeling. Based on research, Entrepreneurial Orientation and Adaptation to the External Environment positive effect on Competitive Advantage, Entrepreneurial Orientation and Adaptation to the External Environment does not affect the Performance of SMEs, while the Competitive Advantage on the Performance of SMEs. In the case of tests fit model, stating that the model has a good fit. So, from this we can conclude that the model has a fairly good fit to predict buying interest

Fecal microbiota transplantation may have clinical utility in reducing incidence of recurrent urinary tract infection

A critical appraisal and clinical application of Tariq R, Pardi DS, Tosh PK, Walker RC, Razonable RR, Khanna S. Fecal microbiota transplantation for recurrent Clostridium difficile infection reduces recurrent urinary tract infection frequency. Clinical Infectious Diseases. 2017 Oct 30;65(10):1745–1747. doi: 10.1093/cid/cix61

An alternate model for magnetization plateaus in the molecular magnet V_15

Starting from an antiferromagnetic Heisenberg Hamiltonian for the fifteen spin-1/2 ions in V_15, we construct an effective spin Hamiltonian involving eight low-lying states (spin-1/2 and spin-3/2) coupled to a phonon bath. We numerically solve the time-dependent Schrodinger equation of this system, and obtain the magnetization as a function of temperature in a time-dependent magnetic field. The magnetization exhibits unusual patterns of hysteresis and plateaus as the field sweep rate and temperature are varied. The observed plateaus are not due to quantum tunneling but are a result of thermal averaging. Our results are in good agreement with recent experimental observations.Comment: Revtex, 4 pages, 5 eps figure

The Chemical Evolution of the Milky Way: the Three Infall Model

We present a new chemical evolution model for the Galaxy that assumes three main infall episodes of primordial gas for the formation of halo, thick and thin disk, respectively. We compare our results with selected data taking into account NLTE effects. The most important parameters of the model are (i) the timescale for gas accretion, (ii) the efficiency of star formation and (iii) a threshold in the gas density for the star formation process, for each Galactic component. We find that, in order to best fit the features of the solar neighbourhood, the halo and thick disk must form on short timescales (~0.2 and ~1.25 Gyr, respectively), while a longer timescale is required for the thin-disk formation. The efficiency of star formation must be maximum (10 Gyr-1) during the thick-disk phase and minimum (1 Gyr-1) during the thin-disk formation. Also the threshold gas density for star formation is suggested to be different in the three Galactic components. Our main conclusion is that in the framework of our model an independent episode of accretion of extragalactic gas, which gives rise to a burst of star formation, is fundamental to explain the formation of the thick disk. We discuss our results in comparison to previous studies and in the framework of modern galaxy formation theories.Comment: 12 pages, 7 figures, accepted for publication in MNRA

Properties of low-lying states in some high-nuclearity Mn, Fe and V clusters: Exact studies of Heisenberg models

Using an efficient numerical scheme that exploits spatial symmetries and spin parity, we have obtained the exact low-lying eigenstates of exchange Hamiltonians for the high nuclearity spin clusters, Mn_{12}, Fe_8 and V_{15}. The largest calculation involves the Mn_{12} cluster which spans a Fock space of a hundred million. Our results show that the earlier estimates of the exchange constants need to be revised for the Mn_{12} cluster to explain the level ordering of low-lying eigenstates. In the case of the Fe_8 cluster, correct level ordering can be obtained which is consistent with the exchange constants for the already known clusters with butterfly structure. In the V_{15} cluster, we obtain an effective Hamiltonian that reproduces exactly, the eight low-lying eigenvalues of the full Hamiltonian.Comment: Revtex, 12 pages, 16 eps figures; this is the final published versio

The Chemical Evolution of the Galaxy: the two-infall model

In this paper we present a new chemical evolution model for the Galaxy which assumes two main infall episodes for the formation of halo-thick disk and thin disk, respectively. We do not try to take into account explicitly the evolution of the halo but we implicitly assume that the timescale for the formation of the halo was of the same order as the timescale for the formation of the thick disk. The formation of the thin-disk is much longer than that of the thick disk, implying that the infalling gas forming the thin-disk comes not only from the thick disk but mainly from the intergalactic medium. The timescale for the formation of the thin-disk is assumed to be a function of the galactocentric distance, leading to an inside-out picture for the Galaxy building. The model takes into account the most up to date nucleosynthesis prescriptions and adopts a threshold in the star formation process which naturally produces a hiatus in the star formation rate at the end of the thick disk phase, as suggested by recent observations. The model results are compared with an extended set of observational constraints. Among these constraints, the tightest one is the metallicity distribution of the G-dwarf stars for which new data are now available. Our model fits very well these new data. We show that in order to reproduce most of these constraints a timescale $\le 1$ Gyr for the (halo)-thick-disk and of 8 Gyr for the thin-disk formation in the solar vicinity are required. We predict that the radial abundance gradients in the inner regions of the disk ($R< R_{\odot}$) are steeper than in the outer regions, a result confirmed by recent abundance determinations, and that the inner ones steepen in time during the Galactic lifetime.Comment: 48 pages, 20 Postscript figures, AASTex v.4.0, to be published in Astrophysical Journa

SUNDA ON INSTAGRAM: WHAT SUNDANESE USERS DO TO MAINTAIN THE LANGUAGE

In 2016, instagram ranks fifth as the most popular social media platform by active users and third by millennials. Indonesia has reached 22 million users from 400 million worldwide. Among the million Indonesia users, what Sundanese people do to express their language, particularly to maintain it? Therefore, the paper aims to; first, find out the purposes of the use of instagram account by Sundanese users and the later, to find out the idea/thoughts shared by Sundanese users on instagram. The research used qualitative research method. Further, the writer used some quote pictures and meme pictures as the data and sourced it from some quotes accounts created by Sundanese users on instagram. The steps of the study begins with: 1) Choosing some relevant quotes accounts, 2) classifying the accounts based on the content, 3) taking the data sample, 4) analyzing the samples by classifying them based on the ideas/thoughts the users share/focus on. In sum, there are two mainly purposes of Sundanese users on instagram. The first one is to deliver jokes mostly expressed by meme pictures and they have hugely many followers. The second one is the accounts which aim to share something like knowledge on Sundanese language, for instance, Sundanese vocabularies/mini dictionary, paribasa Sunda, Sundanese script, forum, games and another information about Sunda