The bryophyte flora of six gypsum outcrops in the Northern Apennines (Nature 2000 Network, Emilia Romagna Region, Italy).

A study of the bryophyte flora of the gypsum outcrops in six sites of the Nature 2000 Network of the Emilia-Romagna Region was conducted in order to contribute to the conservation of the biodiversity of these sites. Subsequently, the main ecological and chorological aspects of the areas were analyzed, and with this information a series of target species was identified as indicators of the conditions of naturality or of progressive anthropization and deterioration of the areas

MAXIMAL THEORETICAL STRENGTH: METHODOLOGY AND APPLICATIONS

Introduction: We describe a new experimental method useful in the evaluation of strength, strength training and rehabilitation, and training control. Methods: The Maximal Theoretical Strength (Forza Massima Teorica - FMAXT) method has been developed from the equation F=P(1+a/g), which relates lifted weight (P) to muscular strength (F) used in lifting and to its acceleration (a). The test is carried out with a bench press and a multipower machine (for testing upper and lower limb strength), both equipped with a photocell-system chronometer and linked to a PC that elaborates the data. The test consists of five consecutive lifts from a motionless start, each carried out with increasing weight (P): We obtain, from the acceleration (a) expressed in the lifts (derived from the time measured by the photocells) the corresponding strength (F). F obtained in the previous lift is used as the weight in the next lift. Results: 1) Reporting the five pairs (P-F) on a Cartesian plane, the points draw up on a interpolating straight line (r=0.996) that, when intersecting the bisecting line of the plane itself, determines a condition (F=P) experimentally impossible to reach, because a=0. Such value (FMAXT value) can be calculated only theoretically; it can be considered as an ‘absolute’ strength value and is quantifiable as the average max isometric strength expressed in the totality of the movement. On the strength/velocity Hill’s curve, the FMAXT value is pointed out in the intersection of the curve with the axis of Strength, in correspondence to v=0. (This study phase was carried out with 255 subjects for the upper limbs and 144 for the lower limbs) 2) When the single test is carried out with a double lift, the first starting from a motionless position (evaluation of the unique Contractile Component-expressed strength), followed, without pause, by a second one beginning at the superior deadpoint reached in the first lift and divided into two phases, the falling phase (concentric phase with elastic energy accumulation in muscular Serial Elastic Component) and the second lifting phase (in which is expressed the strength derived from CC plus the CES-accumulated one), the FMAXT findings of the two lifts (motionless and with counter-movement) coincide. (this second study phase was carried out with 120 subjects). Conclusions: From the analysis of FMAXT test results some very significant data for personalized training programming can be obtained. These data are the maxFMAXT itself, the Maximal Concentric Power Peak, the Maximal Eccentric/Concentric Power Peak, the Maximal Elastic Energy Percentage Reutilization Peak. Each peak can be characterized by an absolute value and by a relative percentage FMAXT-related value. In training control, comparing the results of subsequent FMAXT tests, it is possible to evaluate whether the programmed training has or has not produced the supposed adaptive phenomena regarding the contractile and/or elastic component of muscular strength

Intestinal perforation due to typhoid fever in Karamoja (Uganda).

INTRODUCTION: This is a retrospective analysis of patients operated for typhoid perforation, aiming to analyze epidemiology, clinical-diagnostic and therapeutic aspects, mortality and prognosis. METHODS: 47 patients were operated at Matany Hospital from 2010 to 2016. We examined clinical files to collect data. Microbiological and isthological examinations were unavailable, so etiology was deducted operatively. RESULTS: Median age: 17.85 years, 61.7% of patients were male, 74.47% perforated within two weeks from the onset of symptoms. Every radiological investigation (X-Rays and Ultrasound Scans) resulted positive. 40 patients underwent primary repair, 4 underwent resection. 72.34% experienced postoperative complications, SSI (Surgical Site Infection) occurred in 40.42%. Mortality rate reached 5.56% in patients without organ failure (vs 31.03%) and 11.76% (vs 20.51%) in patients operated within 24 hours from perforation. An MPI (Mannheim Peritonitis Index) score >30 was related with a mortality rate of 36% (vs 3.45%). CONCLUSIONS: Peak of incidence occurs at the end of rainy season. Majority of patients are young men. Main symptoms are fever and signs of intestinal obstruction, with a shorter period before perforation. Primary repair is the technique of choice for single perforations, resection for multiple ones, right colectomy in case of cecal involvement, ileostomy for important peritoneal contamination. SSI are the most frequent complications, enteric fistulas the most severe ones. Mortality rate is around 21.28%. Important prognostic factors are time between perforation and operation and the presence of organ failure. An MPI score >30 is related with a poorer prognosis

Ethical issues associated with in-hospital emergency from the medical emergency team's perspective: a national survey

Medical Emergency Teams (METs) are frequently involved in ethical issues associated to in-hospital emergencies, like decisions about end-of-life care and intensive care unit (ICU) admission. MET involvement offers both advantages and disadvantages, especially when an immediate decision must be made. We performed a survey among Italian intensivists/anesthesiologists evaluating MET's perspective on the most relevant ethical aspects faced in daily practice

SYNTHETIC DATA GENERATION AND TESTING FOR THE SEMANTIC SEGMENTATION OF HERITAGE BUILDINGS

Over the past decade, the use of machine learning and deep learning algorithms to support 3D semantic segmentation of point clouds has significantly increased, and their impressive results has led to the application of such algorithms for the semantic modeling of heritage buildings. Nevertheless, such applications still face several significant challenges, caused in particular by the high number of training data required during training, by the lack of specific data in the heritage building scenarios, and by the time-consuming operations to data collection and annotation. This paper aims to address these challenges by proposing a workflow for synthetic image data generation in heritage building scenarios. Specifically, the procedure allows for the generation of multiple rendered images from various viewpoints based on a 3D model of a building. Additionally, it enables the generation of per-pixel segmentation maps associated with these images. In the first part, the procedure is tested by generating a synthetic simulation of a real-world scenario using the case study of Spedale del Ceppo. In the second part, several experiments are conducted to assess the impact of synthetic data during training. Specifically, three neural network architectures are trained using the generated synthetic images, and their performance in predicting the corresponding real scenarios is evaluated

The ecosystem carbon sink implications of mountain forest expansion into abandoned grazing land: The role of subsoil and climatic factors

Woody encroachment is a widespread phenomenon resulting from the abandonment of mountain agricultural and pastoral practices during the last century. As a result, forests have expanded, increasing biomass and necromass carbon (C) pools. However, the impact on soil organic carbon (SOC) is less clear. The main aim of this study was to investigate the effect of woody encroachment on SOC stocks and ecosystem C pools in six chronosequences located along the Italian peninsula, three in the Alps and three in the Apennines. Five stages along the chronosequences were identified in each site. Considering the topsoil (0 30 cm), subsoil (30 cm-bedrock) and whole soil profile, the temporal trend in SOC stocks was similar in all sites, with an initial increment and subsequent decrement in the intermediate phase. However, the final phase of the woody encroachment differed significantly between the Alps (mainly conifers) and the Apennines (broadleaf forests) sites, with a much more pronounced increment in the latter case. Compared to the previous pastures, after mature forest (>62 years old) establishment, SOC stocks increased by: 2.1(mean) ± 18.1(sd) and 50.1 ± 25.2 Mg C·ha -1 in the topsoil, 7.3 ± 17.4 and 93.2 ± 29.7 Mg C·ha -1 in the subsoil, and 9.4 ± 24.4 and 143.3 ± 51.0 Mg C·ha -1 in the whole soil profile in Alps and Apennines, respectively. Changes in SOC stocks increased with mean annual air temperature and average minimum winter temperature, and were negatively correlated with the sum of summer precipitation. At the same time, all other C pools (biomass and necromass) increased by 179.1 ± 51.3 and 304.2 ± 67.6 Mg C·ha -1 in the Alps and the Apennines sites, respectively. This study highlights the importance of considering both the subsoil, since deep soil layers contributed 38% to the observed variations in carbon stocks after land use change, and the possible repercussions for the carbon balance of large areas where forests are expanding, especially under pressing global warming scenarios. © 2019 Elsevier B.V.The project of this work is part of the research activities of the PhD in science, technology and biotechnology for sustainability. The first author received a fully founded scholarship partially by the University of Tuscia (Viterbo - Italy) and partially by the University of Molise . Tommaso Chiti participated in the project by conducting his work with the funding obtained through the LIFE MediNet project (grant number LIFE15 PRE IT/732295 ). Jorge Curiel Yuste was financed in part by the Basque Government through the BERC 2018-2021 (grant code) program and by Spanish Ministry of Economy and Competitiveness (MINECO) through BC3 María de Maeztu excellence accreditation MDM-2017-0714. I.C (grant code)

Improvement in the sustainability and stability of acrylic protective coatings for outdoor bronze artworks

Outdoor bronze artworks are an entrenched part of our urban landscape. They are usually covered by a patina resulting from their exposition to the environment. This patina plays an important aesthetic role and may provide some passivation on the surface, nonetheless it does not prevent the degradation processes promoted by external factors such as pollution, light and humidity. One of the strategies to slow down these unwanted processes is the application of protective coatings. The products currently available have some limitations due to the loss of effectiveness over time and poor environmental sustainability. With the aim of proposing more performing alternatives, coatings based on Paraloid (R) B44 modified with corrosion inhibitors and light stabilizers were prepared and characterized. Two non-toxic corrosion inhibitors were studied, 5-mercapto-1-pheniltetrazole (MPT) and 5-ethyl-1,3,4-thiadiazol-2-amine (AEDTA), comparing them with the traditional benzotriazole (BTA). The approach used aimed to identify the blend providing the most stable coatings. The chemical and physical properties of the coatings, such as colour, solubility, glass transition and composition, were studied and monitored over time. All coatings have shown adequate visual properties; however, corrosion inhibitors degrade some other properties of the coatings and need to be used in conjunction with light stabilizers. The permanence of corrosion inhibitors in the coatings over time was also studied by investigating the role of the support. The establishment of specific interactions between inhibitors and the bronze surface lengthens their permanence in the coatings compared to what happens with inert supports. Especially for AEDTA, the inhibitor retention within the coating and at the coating-bronze interface is better than for BTA and MPT. The effect of each of the additives on the photooxidation stability of the coating was evaluated and the most promising inhibitor and stabilizer combination was identified