102,962 research outputs found
anwarnunez/fusi: v0.0.0
No full textThis Zenodo DOI refers to the GitHub repository:
https://github.com/anwarnunez/fusi
The GitHub repository contains code related to the article:
Neural correlates of blood flow measured by ultrasound. Nunez-Elizalde AO, Krumin M, Reddy CB, Montaldo G, Urban A, Harris KD, and Carandini M. (2022)
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https://github.com/anwarnunez/fus
FUSI CITRA LANDSAT 7ETM+ DAN ASTER G-DEM UNTUK IDENTIFIKASI ASPEK GEOLOGI KABUPATEN SOPPENG SULAWESI SELATAN
No full textSulawesi Selatan merupakan salah satu daerah zona tumbukan lempeng eurasia, pasifik, dan indo-australia menyajikan fenomena geologi batuan dan struktur geologi yang beragam. Penelitian ini dilakukan untuk mengetahui kemampuan masing-masing teknik pengolahan citra untuk menghasilkan informasi batuan dan struktur geologi. Selain itu melakukan pemetaan batuan dan struktur geologi. Citra LANDSAT 7 ETM+ dan citra ASTER G-DEM sebagai input data beberapa teknik pengolahan citra Fusi Hue, Saturation, and Value, Fusi Principal Component, Fusi Gram-Schmidt, Fusi Brovey, dan Pemfilteran Spasial yang dilakukan proses perbandingan masing-masing metode untuk menghasilkan metode terbaik. Fusi Principal Component memiliki nilai akurasi tertinggi yaitu 81,40% pada unit bentuklahan dan 82,05% pada unit batuan. Pemetaan batuan dan struktur geologi sisi Barat didominasi batuan lava, breksi, dan trakit, Sisi Selatan didominasi batugamping, batulempung, batulanau, dan batupasir, Sisi Timur batulempung dan batulanau, Sisi Utara dan Tengah berupa aluvium (kerikil, pasir, lempung). Struktur geologi sisi Selatan didominasi sesar dan sisi Timur didominasi lipatan
Pediatric isolated fallopian tube torsion
No full textIsolated fallopian tube torsion (IFTT) is an isolated rotation of the fallopian tube around itself, without torsion of the ovary. The incidence of fallopian tube torsion is one in 1,500,000 adults. IFTT is less frequent in children and teenagers then in adults, but the real incidence in pediatric patients is difficult to determine, because rarely reported in the literature. IFTT generally occurs as adnexal torsion caused by a concomitant ovarian pathology. In adult age several intrinsic or extrinsic predisposing factors have been identified leading to IFTT while in the pediatric age group the possible factors are preexisting congenital malformations such as hydrosalpinx (HSX). Primary causes are anatomical, such as abnormality of length, mobility and structure. Secondary causes are acquired including infections, adhesions, endometriosis and neoplasms. Both primary and secondary causes are likely to be responsible for pediatric tubal disease. IFTT is a rare cause of abdominal pain often presents with aspecific abdominal pain (acute or chronic). Diagnosis appears difficult to obtain with standard diagnostic procedures and in most patients a definitive diagnosis is obtained only through a surgical exploration. Operative procedures range from salpingectomy to conservative management with de-torsion of the tube unless there is evidence of necrosis or rupture. However, surgical remedy of the torsed tube is controversial. This chapter reports common presenting signs, symptoms, and radiological findings as well different surgical options available and adopted, focusing on the current management and the preservation of fertility in these young patients with this rare pediatric entity
Piazza Valdo Fusi
No full textPubblicazione del progetto per il parcheggio e la piazza/giardino Valdo Fusi a Torino, di cui gli autori sono i progettisti e i vincitori del Concorso nazionale di progettazione indetto dalla città di Torino
Il corpus digitale AttiChiari: costruzione, analisi, strumenti di ricerca
No full textThe paper delves into the complexities of indexing legal documents for the purpose of building corpora for linguistic and juridical analysis, highlighting the challenges of applying a systematic pseudonymisation of the original texts without disrupting their linguistic texture, while integrating an unlimited number of metadata from various sources, such as document metadata, typographic aspects, and more linguistic information from NLP tools. It emphasizes the need for a higher level of abstraction in representing textual and metatextual data to offer a uniform interface for the search process. Furthermore, it introduces the architecture of a new engine, stemming from the linguistic and metrical analysis of Classical texts, designed to meet these requirements through a "dematerialization" of text, transforming it into a higher abstraction level that better supports the desired characteristics. This engine differs from traditional systems by focusing on objects—containers of metadata properties—rather than character sequences. This approach allows for more complex and varied metadata, enhancing search capabilities beyond simple character sequence comparisons. The paper also outlines the modular components of the system, which support interactive text consultation, creating an environment conducive to both research and reading. The entire process from the original document to its indexing is described as a modular sequence, allowing for the integration of various text analysis procedures and metadata from different sources, ultimately rendering the document in a typographically rich format suitable for presentation to the end-user
The response of cortical neurons to in vivo-like input current: theory and experiment: I. Noisy inputs with stationary statistics.
No full textThe study of several aspects of the collective dynamics of interacting neurons can be highly simplified if one assumes that the statistics of the synaptic input is the same for a large population of similarly behaving neurons (mean field approach). In particular, under such an assumption, it is possible to determine and study all the equilibrium points of the network dynamics when the neuronal response to noisy, in vivo-like, synaptic currents is known. The response function can be computed analytically for simple integrate-and-fire neuron models and it can be measured directly in experiments in vitro. Here we review theoretical and experimental results about the neural response to noisy inputs with stationary statistics. These response functions are important to characterize the collective neural dynamics that are proposed to be the neural substrate of working memory, decision making and other cognitive functions. Applications to the case of time-varying inputs are reviewed in a companion paper (Giugliano et al. in Biol Cybern, 2008). We conclude that modified integrate-and-fire neuron models are good enough to reproduce faithfully many of the relevant dynamical aspects of the neuronal response measured in experiments on real neurons in vitro
Ample vector bundles with small
No full textLet X be a smooth complex projective variety and let Z be a smooth submanifold of X of dimension ge 2, which is the zero locus of a section of an ample vector bundle E of rank dim X - dim Z ge 2. Let H be an ample line bundle on X, whose restriction H_Z to Z is generated by global sections. The structure of triplets (X,E,H) as above is described under the assumption that the curve genus of the corank-1 vector bundle E oplus H^{oplus (dim Z -1)} is le q+2, where q is the irregularity of X
Riconoscimento e misura automatica dei fusi da sonno mediante filtraggio digitale
No full textViene descritto un metodo di misura automatica della distribuzione della durata dei fusi da sonno che avviene attraverso tre susseguenti fasi: digitalizzazione dell'EEG, riconoscimento dei fusi, misura dei fusi. Il segnale EEG, registrato su nastro magnetico viene digitalizzato con una strumentazione elettronica CAMAC collegata in linea a un calcolatore PDP 11/45. Con una routine di Fast Fourier Transform si effettua una trasformazione dal dominio del tempo al dominio delle frequenze. Qui si attua il filtraggio della banda di frequenza da 12 a 16 Hz caratteristiche dei fusi da sonno in esame. Con un'operazione di antitrasformata si ottiene il segnale filtrato nel dominio del tempo a cui si applica il processo di misurare della lunghezza temporale dei fusi
The response of cortical neurons to in vivo-like input current: theory and experiment: II. Time-varying and spatially distributed inputs
No full textThe response of a population of neurons to time-varying synaptic inputs can show a rich phenomenology, hardly predictable from the dynamical properties of the membrane’s inherent time constants. For example, a network of neurons in a state of spontaneous activity can respond significantly more rapidly than each single neuron taken individually. Under the assumption that the statistics of the synaptic input is the same for a population of similarly behaving neurons (mean field approximation), it is possible to greatly simplify the study of neural circuits, both in the case in which the statistics of the input are stationary (reviewed in La Camera et al. in Biol Cybern, 2008) and in the case in which they are time varying and unevenly distributed over the dendritic tree. Here, we review theoretical and experimental results on the single-neuron properties that are relevant for the dynamical collective behavior of a population of neurons. We focus on the response of integrate-and-fire neurons and real cortical neurons to long-lasting, noisy, in vivo-like stationary inputs and show how the theory can predict the observed rhythmic activity of cultures of neurons. We then show how cortical neurons adapt on multiple time scales in response to input with stationary statistics in vitro. Next, we review how it is possible to study the general response properties of a neural circuit to time-varying inputs by estimating the response of single neurons to noisy sinusoidal currents. Finally, we address the dendrite–soma interactions in cortical neurons leading to gain modulation and spike bursts, and show how these effects can be captured by a two-compartment integrate-and-fire neuron. Most of the experimental results reviewed in this article have been successfully reproduced by simple integrate-and-fire model neurons
I fusi da sonno nel morbo di Wilson
No full textSono stati registrati i sonni notturni di tre pazienti affetti da malattia di Wilson. In un caso controllato a 12 mesi dall'inizio della terapia con D-penicillamina è stata effettuata una analisi automatica del segnale EEG per lo studio dei fusi da sonno. L'analisi spettrale delle fasi 2 e 3 ha indicato una basso indice di spindling in condizioni di base. Dopo terapia ed in contemporaneità con un miglioramento clinico è emerso un incremento rilevante nell'attività di fusaggio. I risultati sembrano sottolineare la rilevanza dei nuclei basali nel provocare i fusi da sonno
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