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Article ; Online: Can a Boxer Engine Reduce Leg Injuries Among Motorcyclists? Analysis of Injury Distributions in Crashes Involving Different Motorcycles Fitted with Antilock Brakes (ABS).

Rizzi, Matteo

2015 Volume 16, Issue 7, Page(s) 739–746

Abstract: Objectives: Several studies have shown that motorcycle antilock braking systems (ABS) reduce crashes and injuries. However, it has been suggested that the improved stability provided by ABS would make upright crashes more frequent, thus changing the ... ...

Abstract	Objectives: Several studies have shown that motorcycle antilock braking systems (ABS) reduce crashes and injuries. However, it has been suggested that the improved stability provided by ABS would make upright crashes more frequent, thus changing the injury distributions among motorcyclists and increasing the risk of leg injuries. The overall motorcycle design can vary across different categories and manufacturers. For instance, some motorcycles are equipped with boxer-twin engines; that is, with protruding cylinder heads. A previous study based on a limited material has suggested that these could provide some leg protection; therefore, the aim of this research was to analyze injury distributions in crashes involving ABS-equipped motorcycles with boxer-twin engines compared to similar ABS-equipped motorcycles with other engine configurations. Methods: Swedish hospital and police records from 2003-2014 were used. Crashes involving ABS-equipped motorcycles with boxer-twin engines (n = 55) were compared with similar ABS-equipped motorcycles with other engines configurations (n = 127). The distributions of Abbreviated Injury Scale (AIS) 1+ and AIS 2+ were compared. Each subject's injury scores were also converted to the risk for permanent medical impairment (RPMI), which shows the risk of different levels of permanent medical impairment given the severity and location and of injuries. To compare injury severity, the mean RPMI 1+ and RPMI 10+ were analyzed for each body region and in overall for each group of motorcyclists. Results: It was found that AIS 1+, AIS 2+, and PMI 1+ leg injuries were reduced by approximately 50% among riders with boxer engines. These results were statistically significant. The number of injuries to the upper body did not increase; the mean RPMI to the head and upper body were similar across the 2 groups, suggesting that the severity of injuries did not increase either. Indications were found suggesting that the overall mean RPMI 1+ was lower among riders with boxer engines, although this result was not statistically significant. The mean values of the overall RPMI 10+ were similar. Conclusions: Boxer-twin engines were not originally developed to improve motorcycle crashworthiness. However, the present article indicates that these engines can reduce leg injuries among riders of motorcycles fitted with ABS. Though it is recommended that future research should look deeper into this particular aspect, the present findings suggest that the concept of integrated leg protection is indeed feasible and that further engineering efforts in this area are likely to yield significant savings in health losses among motorcyclists.
MeSH term(s)	Abbreviated Injury Scale ; Accidents, Traffic/statistics & numerical data ; Humans ; Leg Injuries/prevention & control ; Motorcycles ; Protective Devices ; Risk Assessment ; Sweden
Language	English
Publishing date	2015-03-20
Publishing country	England
Document type	Journal Article
ZDB-ID	2089818-6
ISSN	1538-957X ; 1538-9588
ISSN (online)	1538-957X
ISSN	1538-9588
DOI	10.1080/15389588.2015.1007224
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Article ; Online: Egg Removal via Cloacoscopy in Three Dystocic Leopard Geckos (Eublepharis macularius)

Vetere, Alessandro / Bigliardi, Enrico / Masi, Marco / Rizzi, Matteo / Leandrin, Elisa / Di Ianni, Francesco

Animals. 2023 Mar. 03, v. 13, no. 5

2023

Abstract: Dystocia is a multifactorial, life-threatening condition commonly affecting pet reptiles. Treatment for dystocia can be either medical or surgical. Medical treatment usually involves the administration of oxytocin, but in some species or, in some cases, ... ...

Abstract	Dystocia is a multifactorial, life-threatening condition commonly affecting pet reptiles. Treatment for dystocia can be either medical or surgical. Medical treatment usually involves the administration of oxytocin, but in some species or, in some cases, this treatment does not work as expected. Surgical treatments such as ovariectomy or ovariosalpingectomy are resolutive, but invasive in small-sized reptiles. In this paper, we describe three cases of post ovulatory egg retention in three leopard geckos (Eublepharis macularius) successfully treated through a cloacoscopic removal of the retained eggs, after a non resolutive medical treatment. The intervention was fast, non-invasive, and no procedure-related adverse effects were noted. The problem relapsed six months later in one animal, and a successful bilateral ovariosalpingectomy was performed. Cloacoscopy should be considered a valuable, non-invasive tool for egg removal in dystocic leopard geckos when the egg is accessible to manipulation. Recrudescence or complications such as adhesions, oviductal rupture, or the presence of ectopic eggs should recommend surgical intervention.
Keywords	Eublepharis macularius ; animals ; dystocia ; eggs ; medical treatment ; ovariectomy ; oxytocin
Language	English
Dates of publication	2023-0303
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article ; Online
ZDB-ID	2606558-7
ISSN	2076-2615
ISSN	2076-2615
DOI	10.3390/ani13050924
Database	NAL-Catalogue (AGRICOLA)

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Book ; Online: Quantum simulation of the tricritical Ising model in tunable Josephson junction ladders

Maffi, Lorenzo / Tausendpfund, Niklas / Rizzi, Matteo / Burrello, Michele

2023

Abstract: Modern hybrid superconductor-semiconductor Josephson junction arrays are a promising platform for analog quantum simulations. Their controllable and non-sinusoidal energy/phase relation opens the path to implement nontrivial interactions and study the ... ...

Abstract	Modern hybrid superconductor-semiconductor Josephson junction arrays are a promising platform for analog quantum simulations. Their controllable and non-sinusoidal energy/phase relation opens the path to implement nontrivial interactions and study the emergence of exotic quantum phase transitions. Here, we propose the analysis of an array of hybrid Josephson junctions defining a 2-leg ladder geometry for the quantum simulation of the tricritical Ising phase transition. This transition provides the paradigmatic example of minimal conformal models beyond Ising criticality and its excitations are intimately related with Fibonacci non-Abelian anyons and topological order in two dimensions. We study this superconducting system and its thermodynamic phases based on bosonization and matrix-product-states techniques. Its effective continuous description in terms of a three-frequency sine-Gordon quantum field theory suggests the presence of the targeted tricritical point and the numerical simulations confirm this picture. Our results indicate which experimental observables can be adopted in realistic devices to probe the physics and the phase transitions of the model. Additionally, our proposal provides a useful one-dimensional building block to design exotic topological order in two-dimensional scalable Josephson junction arrays. Comment: 6 pages, 3 figures and Supplemental material
Keywords	Condensed Matter - Mesoscale and Nanoscale Physics ; Condensed Matter - Strongly Correlated Electrons
Subject code	612
Publishing date	2023-10-27
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Egg Removal via Cloacoscopy in Three Dystocic Leopard Geckos (

Vetere, Alessandro / Bigliardi, Enrico / Masi, Marco / Rizzi, Matteo / Leandrin, Elisa / Di Ianni, Francesco

Animals : an open access journal from MDPI

2023 Volume 13, Issue 5

Abstract	Dystocia is a multifactorial, life-threatening condition commonly affecting pet reptiles. Treatment for dystocia can be either medical or surgical. Medical treatment usually involves the administration of oxytocin, but in some species or, in some cases, this treatment does not work as expected. Surgical treatments such as ovariectomy or ovariosalpingectomy are resolutive, but invasive in small-sized reptiles. In this paper, we describe three cases of post ovulatory egg retention in three leopard geckos (
Language	English
Publishing date	2023-03-03
Publishing country	Switzerland
Document type	Case Reports
ZDB-ID	2606558-7
ISSN	2076-2615
ISSN	2076-2615
DOI	10.3390/ani13050924
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Surrogate models for quantum spin systems based on reduced-order modeling.

Herbst, Michael F / Stamm, Benjamin / Wessel, Stefan / Rizzi, Matteo

Physical review. E

2022 Volume 105, Issue 4-2, Page(s) 45303

Abstract: We present a methodology to investigate phase diagrams of quantum models based on the principle of the reduced basis method (RBM). The RBM is built from a few ground-state snapshots, i.e., lowest eigenvectors of the full system Hamiltonian computed at ... ...

Abstract	We present a methodology to investigate phase diagrams of quantum models based on the principle of the reduced basis method (RBM). The RBM is built from a few ground-state snapshots, i.e., lowest eigenvectors of the full system Hamiltonian computed at well-chosen points in the parameter space of interest. We put forward a greedy strategy to assemble such a small-dimensional basis, i.e., to select where to spend the numerical effort needed for the snapshots. Once the RBM is assembled, physical observables required for mapping out the phase diagram (e.g., structure factors) can be computed for any parameter value with a modest computational complexity, considerably lower than the one associated to the underlying Hilbert space dimension. We benchmark the method in two test cases, a chain of excited Rydberg atoms and a geometrically frustrated antiferromagnetic two-dimensional lattice model, and illustrate the accuracy of the approach. In particular, we find that the ground-state manifold can be approximated to sufficient accuracy with a moderate number of basis functions, which increases very mildly when the number of microscopic constituents grows-in stark contrast to the exponential growth of the Hilbert space needed to describe each of the few snapshots. A combination of the presented RBM approach with other numerical techniques circumventing even the latter big cost, e.g., tensor network methods, is a tantalizing outlook of this work.
Language	English
Publishing date	2022-04-18
Publishing country	United States
Document type	Journal Article
ZDB-ID	2844562-4
ISSN	2470-0053 ; 2470-0045
ISSN (online)	2470-0053
ISSN	2470-0045
DOI	10.1103/PhysRevE.105.045303
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Article ; Online: Reduced basis surrogates for quantum spin systems based on tensor networks.

Brehmer, Paul / Herbst, Michael F / Wessel, Stefan / Rizzi, Matteo / Stamm, Benjamin

Physical review. E

2023 Volume 108, Issue 2-2, Page(s) 25306

Abstract: Within the reduced basis methods approach, an effective low-dimensional subspace of a quantum many-body Hilbert space is constructed in order to investigate, e.g., the ground-state phase diagram. The basis of this subspace is built from solutions of ... ...

Abstract	Within the reduced basis methods approach, an effective low-dimensional subspace of a quantum many-body Hilbert space is constructed in order to investigate, e.g., the ground-state phase diagram. The basis of this subspace is built from solutions of snapshots, i.e., ground states corresponding to particular and well-chosen parameter values. Here, we show how a greedy strategy to assemble the reduced basis and thus to select the parameter points can be implemented based on matrix-product-state calculations. Once the reduced basis has been obtained, observables required for the computation of phase diagrams can be computed with a computational complexity independent of the underlying Hilbert space for any parameter value. We illustrate the efficiency and accuracy of this approach for different one-dimensional quantum spin-1 models, including anisotropic as well as biquadratic exchange interactions, leading to rich quantum phase diagrams.
Language	English
Publishing date	2023-09-18
Publishing country	United States
Document type	Journal Article
ZDB-ID	2844562-4
ISSN	2470-0053 ; 2470-0045
ISSN (online)	2470-0053
ISSN	2470-0045
DOI	10.1103/PhysRevE.108.025306
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Article: Strong coupling phases of the spin-orbit-coupled spin-1 Bose-Hubbard chain: odd integer Mott lobes and helical magnetic phases.

Pixley, J H / Cole, William S / Spielman, I B / Rizzi, Matteo / Sarma, S Das

Physical review. A

2023 Volume 96, Issue 4

Abstract: We study the odd integer filled Mott phases of a spin-1 Bose-Hubbard chain and determine their fate in the presence of a Raman induced spin-orbit coupling which has been achieved in ultracold atomic gases; this system is described by a quantum spin-1 ... ...

Abstract	We study the odd integer filled Mott phases of a spin-1 Bose-Hubbard chain and determine their fate in the presence of a Raman induced spin-orbit coupling which has been achieved in ultracold atomic gases; this system is described by a quantum spin-1 chain with a spiral magnetic field. The spiral magnetic field initially induces helical order with either ferromagnetic or dimer order parameters, giving rise to a spiral paramagnet at large field. The spiral ferromagnet-to-paramagnet phase transition is in a novel universality class, with critical exponents associated with the divergence of the correlation length
Language	English
Publishing date	2023-09-16
Publishing country	United States
Document type	Journal Article
ZDB-ID	209769-2
ISSN	2469-9926 ; 0556-2791 ; 1050-2947
ISSN	2469-9926 ; 0556-2791 ; 1050-2947
DOI	10.1103/physreva.96.043622
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Article: Sex Determination in Immature Sierra Nevada Lizard (Timon nevadensis)

Vetere, Alessandro / Ablondi, Michela / Bigliardi, Enrico / Rizzi, Matteo / Di Ianni, Francesco

Animals. 2022 Aug. 21, v. 12, no. 16

2022

Abstract: Sex determination has a fundamental role in a captive breeding context, both for commercial reasons and in relation to animal welfare itself. However, this can be particularly difficult, especially in reptiles with little or no sexual dimorphism. Twenty- ... ...

Abstract	Sex determination has a fundamental role in a captive breeding context, both for commercial reasons and in relation to animal welfare itself. However, this can be particularly difficult, especially in reptiles with little or no sexual dimorphism. Twenty-three clinically healthy young Sierra Nevada lizards (Timon nevadensis) were included in this study for sex determination. The first attempt at sexing was carried out by cloacal probing. A small, buttoned probe was inserted very gently into the hemipenal pouches, and the length of the inserted part was evaluated and measured. Subsequently, for each animal, a contrast medium was administered into the cloaca, and radiography was performed within 5 min. Through probing, 11 males and 8 females were recognized. The test was, however, equivocal in four subjects. In contrast radiography, 14 males and 9 females were identified. All the animals were rechecked after 8 months through an ultrasound examination, confirming 15 of the 14 previously male sexed animals based on contrast radiography. All the animals identified as female (n = 9) by contrast radiography were confirmed. From these results, it seems that contrast radiography may have major sensitivity in sex determination compared to probing. This technique could represent a valid and less invasive aid for sexing young lizards.
Keywords	animal welfare ; cloaca ; females ; lizards ; males ; mountains ; radiography ; sex determination ; sexual dimorphism ; ultrasonics
Language	English
Dates of publication	2022-0821
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article
ZDB-ID	2606558-7
ISSN	2076-2615
ISSN	2076-2615
DOI	10.3390/ani12162144
Database	NAL-Catalogue (AGRICOLA)

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Article: Sex Determination in Immature Sierra Nevada Lizard (

Vetere, Alessandro / Ablondi, Michela / Bigliardi, Enrico / Rizzi, Matteo / Di Ianni, Francesco

Animals : an open access journal from MDPI

2022 Volume 12, Issue 16

Abstract	Sex determination has a fundamental role in a captive breeding context, both for commercial reasons and in relation to animal welfare itself. However, this can be particularly difficult, especially in reptiles with little or no sexual dimorphism. Twenty-three clinically healthy young Sierra Nevada lizards (
Language	English
Publishing date	2022-08-21
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2606558-7
ISSN	2076-2615
ISSN	2076-2615
DOI	10.3390/ani12162144
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Metaplastic Ossification of a Giant Paraprostatic Cyst in a Dog: A Case Report

Bigliardi, Enrico / Denti, Laura / Bertocchi, Mara / Ianni, Francesco Di / Rizzi, Matteo / Passeri, Benedetta / Volta, Antonella / Leonardi, Fabio

Topics in companion animal medicine. 2022 May, June, v. 48

2022

Abstract: A 7-year-old male Caucasian shepherd presented with a 3 month history of intermittent hematuria, penile discharge, and abdominal pain and distension. The dog had a history of prostatic hyperplasia with multiple cysts, diagnosed by the referring clinician ...

Abstract	A 7-year-old male Caucasian shepherd presented with a 3 month history of intermittent hematuria, penile discharge, and abdominal pain and distension. The dog had a history of prostatic hyperplasia with multiple cysts, diagnosed by the referring clinician two years prior to the case presentation. Two oral courses of antibiotics and antiandrogens were administered by the treating veterinarian without resolution. At the case presentation visit, massive swelling was present in the mid- and caudal parts of the abdomen. Abdominal ultrasound and exploratory laparotomy revealed a paraprostatic cyst (size: 25 × 20 × 18 cm) in the caudal part of the abdomen. The cyst had a bony ridge along the wall with multiple cauliflower-like lesions extending inside. Histopathologic examination revealed an intermittently epithelial-lined inner wall of the cyst, which was partially degenerated and flattened due to the pressure of the intraluminal fluid. The luminal surface of the cyst appeared markedly irregular with multiple structures made of dense, fibrous connective tissue protruding inside with metaplastic ossification foci, consistent with severe osseous metaplasia. The epithelium showed focal secretory activity. Numerous subepithelial multifocal neutrophil and mononuclear cellular infiltrates were found. The lumen of the cyst contained a reddish-brown (blood and protein-rich) fluid. Complete surgical excision of the cyst and omentalization of the capsular remnant resulted in successful resolution of the clinical signs.
Keywords	abdomen ; bone formation ; case studies ; dogs ; epithelium ; excision ; hematuria ; histopathology ; hyperplasia ; laparotomy ; males ; medicine ; metaplasia ; neutrophils ; pain ; pets ; ultrasonics ; veterinarians
Language	English
Dates of publication	2022-05
Publishing place	Elsevier Inc.
Document type	Article
ISSN	1938-9736
DOI	10.1016/j.tcam.2022.100639
Database	NAL-Catalogue (AGRICOLA)

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