611 research outputs found
Impact of information technology on future floras
Some important facilities offered by the information technology to innovate the development of traditional floras are illustrated and discussed. These include: random access interactive tools for the identification of species, low cost, easy updating, virtually unlimited space for high resolution images and texts, on-line utilities, strong synergy between authors and users. It is argued
that the combination of printed books with integrated digital utilities and data-sources is the most desirable structure for future floras
“Flora Italiana Digitale”: an interactive identification tool for the Flora of Italy
The digital facilities of the second edition of Pignatti’s “Flora d’Italia”
are presented. A software, called FID (i.e. “Flora Italiana Digitale”) will link
together a random-access interactive identification tool, a thesaurus, synoptic
tables and one template for each single species, including a distribution map
(referred to the Italian regions), “ecograms”, a text-box and up to 24 highresolution
colour images. The FID follows a “shareware phylosophy”. All
contents and images can be integrated and/or replaced over time, in order
to continuously improve the diagnostic and qualitative performance of the
provided utilities. Ideally, the community of users should interact on the web,
so that every user could easily become content provider
Bedside communication and management of vital parameters and alarms in care-intensive environments: Simulation model development for the clinical effectiveness analysis of an innovative technology
Background and Objective. The deliberation n.7301 of 31/12/2001 provides for the inclusion of a call system with acoustic and luminous signalling within the minimum equipment of the recovery ward. However, traditional call systems are inefficient since they are based on the following incorrect assumptions: patients and staff are unmoving, information sources are static and assistance is unidirectional. Taking care of a patient involves different figures who should be dynamic and should be able to exchange information.
Furthermore, the high number of clinical calls and alarms might be an issue, because on one hand they are essential to fulfil patients' needs, but on the other hand they could cause stress and additional workload on medical staff. Indeed, they sometimes ignore some calls or waste a lot of time on non-urgent requests. In addition, the identification of an alarm and the prompt intervention seems to be more difficult during travelling.
An ideal alarm system should have 100% sensitivity and specificity. Nevertheless, the alarms are designed to be extremely sensitive, at the expense of specificity.
The alarm fatigue, that is the work overload due to an excessive alarms number exposition, is a critical problem in terms of safety in the current clinical practice because it involves desensitization and alarm loss, causing sometimes even the patient's death.
Material and Methods. Therefore, appropriate approaches to notifications should be evaluated, including the effectiveness of mobile wireless technologies: linking patients, staff, data, services and medical devices simplifies communications and workflows.
Several issues related to the communication among staff members, between patient and caregiver and to the alarms and vital parameters distribution in care-intensive environments have been analysed, focusing on the clinical effectiveness analysis of an innovative technology to support the Emergency Department of the Azienda Ospedaliera dei Colli activities.
Afterwards, we have created a simulation model with Simul8, so that a digital twin reproduces direct and indirect activities in two cases: with and without (What If and As Is model) the aid of the technology.
Results and conclusions. The model provides a set of Key Performance Indicators (number of performing activities, average alarm resolution time, waiting time) on which the compensatory aggregation method is applied to elaborate a single final score in both cases. This score is 52,5 in the As Is Model and 80 in the What If model. So, the clinical effectiveness has been demonstrated
Genetic diversity in Sicilian populations of Quercus ilex (Fagaceae)
Recent studies on the genetic structure of the Italian populations of Quercus ilex demonstrated their high diversity, particularly in the Sicilian metapopulation. In order to check if the holm oak stands in the mountains of NW Sicily could have some relationship with Q. ilex subsp. bal- lota (distributed in Spain and NW Africa), 26 specimens from the Sicilian most distinctive Q. ilex populations have been compared with some representative populations of the Italian Peninsula, North Africa and Spain, by means of the ISSR technique. Even if the results are too preliminary to confirm or reject the initial hypothesis, they confirmed an high level of genetic variability, well distributed among the analyzed specimens. In particular, the metapopulations from the Sicilian mountains (Quacella, Vallone Canna) revealed some genetic affinity with those of the Moroccan mountains (Marrakech/Oukaimeden and Ifrane). These populations, on their turn, resulted to be quite distant from the sample from SE-Spain (Sierra de Javalambre). Moreover, a certain genetic distance has been detected from the comparison of the mountain populations of Sicily with those of coastal sites of this Island (Scopello, Castellammare) and Capri (Villa Jovis)
mHealth Applications to Monitor Lifestyle Behaviors and Circadian Rhythm in Clinical Settings: Current Perspective and Future Directions
Metabolic diseases are a global rising health burden, mainly due to the deleterious interaction of current lifestyles with the underlying biology of these diseases. Daily habits and behaviors, such as diet, sleep, and physical exercise impact the whole-body circadian system through the synchronization of the peripheral body clocks that contribute to metabolic homeostasis. The disruption of this system may promote the development of metabolic diseases, including obesity and diabetes, emphasizing the importance of assessing and monitoring variables that affect circadian rhythms. Advances in technology are generating innovative resources and tools for health care management and patient monitoring, particularly important for chronic conditions. The use of mobile health technologies, known as mHealth, is increasing and these approaches are contributing to aiding both patients and healthcare professionals in disease management and education. The mHealth solutions allow continuous monitoring of patients, sharing relevant information and data with physicians and other healthcare professionals and accessing education resources to support informed decisions. Thus, if properly used, these tools empower patients and help them to adopt healthier lifestyles. This article aims to give an overview of the influence of circadian rhythms disruption and lifestyle habits in the progression of metabolic diseases while also reviewing some of the mobile applications available to monitor lifestyle behaviors and individual chronobiology. Herein is also described the design and development of the NutriClock system, an mHealth solution developed by our team to monitor these variables
Ultrasound assessment of diaphragmatic dysfunction and its improvement with levosimendan in patients with chronic obstructive pulmonary disease
Diaphragmatic Dysfunction (DD) is a clinical condition in which the diaphragm becomes weak or paralyzed, because of muscle strength reduction. It can be due to muscular issues or loss of proper innervation, but, also, to pulmonary hyperinflation or air trapping, such as in Chronic Obstructive Pulmonary Disease (COPD). DD impacts on COPD induced dyspnea, determining its progressive worsening, but levosimendan, an inodilator better known as Ca2+ sensitizer, may limit this phenomenon and diaphragmatic ultrasound assessment can be useful in monitoring its effect. Here, we show the case of a 77-year-old woman admitted to the Emergency department for acute exacerbation of chronic dyspnea in COPD, related to right ventricular failure and DD, which did not respond to medical therapy and non-invasive mechanical ventilation but did experience a favorable outcome after intravenous administration of levosimendan
A systematic review on omics data (metagenomics, metatranscriptomics, and metabolomics) in the role of microbiome in gallbladder disease
Microbiotas are the range of microorganisms (mainly bacteria and fungi)
colonizing multicellular, macroscopic organisms. They are crucial for several
metabolic functions affecting the health of the host. However, difficulties
hamper the investigation of microbiota composition in cultivating
microorganisms in standard growth media. For this reason, our knowledge
of microbiota can benefit from the analysis of microbial macromolecules (DNA,
transcripts, proteins, or by-products) present in various samples collected from
the host. Various omics technologies are used to obtain different data.
Metagenomics provides a taxonomical profile of the sample. It can also be
used to obtain potential functional information. At the same time,
metatranscriptomics can characterize members of a microbiome responsible
for specific functions and elucidate genes that drive the microbiotas
relationship with its host. Thus, while microbiota refers to microorganisms
living in a determined environment (taxonomy of microorganisms identified),
microbiome refers to the microorganisms and their genes living in a determined
environment and, of course, metagenomics focuses on the genes and
collective functions of identified microorganisms. Metabolomics completes
this framework by determining the metabolite fluxes and the products
released into the environment. The gallbladder is a sac localized under the
liver in the human body and is difficult to access for bile and tissue sampling. It
concentrates the bile produced in the hepatocytes, which drains into bile
canaliculi. Bile promotes fat digestion and is released from the gallbladder
into the upper small intestine in response to food. Considered sterile originally,recent data indicate that bile microbiota is associated with the biliary tract’s
inflammation and carcinogenesis. The sample size is relevant for omic studies of
rare diseases, such as gallbladder carcinoma. Although in its infancy, the study
of the biliary microbiota has begun taking advantage of several omics strategies,
mainly based on metagenomics, metabolomics, and mouse models. Here, we
show that omics analyses from the literature may provide a more
comprehensive image of the biliary microbiota. We review studies
performed in this environmental niche and focus on network-based
approaches for integrative studies
CHRONIC RHINOSINUSITIS IN CYSTIC FIBROSIS PATIENTS: SMELL EVALUATION
Cystic Fibrosis (CF) involves the upper airways with chronic rhinosinusitis (CRS) causing nasal congestion, rhinorrhea, mouth breathing, facial pain, and olfactory dysfunction. Twelve to 71% of CF patients report smelling alterations impacting nutrition and quality of life. The aim was to study olfaction performance in CF patients with CRS that worsens quality of life. One hundred and twenty-one subjects were enrolled in this study. Seventy-one had CF and underwent ear, nose, and throat evaluation with nasal endoscopy, SNOT-22, VAS and “Sniffin’ Sticks”. Fifty subjects were age-matched with healthy controls. All 71 CF patients were affected by CRS; 59/71 (83.1%) had CRS without nasal polyps and 12/71 (16.9%) had CRS with early nasal polyps. None of the 50 controls had CRS. Total SNOTT-22 mean values in the 71 CF patients was 38.10 ± 21.08 pts. If considering only the 59 CF patients without nasal polyps the SNOTT-22 mean value was 36.76 ± 21.52 pts. Moreover, based on the VAS scores, the degree of nasal symptoms was classified as mild for facial pain, smell alteration, nasal discharge, and sneezing and resulted in moderate symptoms for nasal blockage and headache. Among the CF patients, 55/71 (76.5%) declared normosmia while the smelling ability assessed by “Sniffin’ Sticks” showed that only 4/71 (5.63%) were normosmic, 58 (81.69%) were hyposmic, and 9 (12.68%) were anosmic. In the controls 41(82%) were normosmic, 9 (18%) were hyposmic, and none were reported anosmia (p < 0.001). The study confirms that most CF patients have a relevant olfactory impairment, although only a low percentage declare it. A careful evaluation with simple and rapid tests helps to select the patients that may benefit from specific therapies
Acute Prosthetic Joint Infections with Poor Outcome Caused by Staphylococcus Aureus Strains Producing the Panton-Valentine Leukocidin
The aim of this study was to investigate whether the presence of Staphylococcus aureus (SA) producing the Panton-Valentine leukocidin (PVL) affects the outcome of Prosthetic Joint Infection (PJI). Patients with acute and chronic PJI sustained by SA were prospectively enrolled at the orthopedic unit of "Casa di Cura Santa Maria Maddalena", from January 2019 to October 2021. PJI diagnosis was reached according to the diagnostic criteria of the International Consensus Meeting on PJI of Philadelphia. Synovial fluid obtained via joint aspirations was collected in order to isolate SA. The detection of PVL was performed via real-time quantitative PCR (RT-qPCR). The outcome assessment was performed using the criteria of the Delphi-based International Multidisciplinary Consensus. Twelve cases of PJI caused by SA were included. Nine (75%) cases were acute PJI treated using debridement, antibiotic and implant retention (DAIR); the remaining three (25%) were chronic PJI treated using two-stage (n = 2) and one-stage revision (n = 1), respectively. The SA strains that tested positive for PVL genes were 5/12 (41.6%,). Treatment failure was documented in three cases of acute PJI treated using DAIR, all supported by SA-PVL strains (p < 0.045). The remaining two cases were chronic PJI treated with a revision arthroplasty (one and two stage, respectively), with a 100% eradication rate in a medium follow-up of 24 months. Although a small case series, our study showed a 100% failure rate in acute PJI, probably caused by SA PVL-producing strains treated conservatively (p < 0.04). In this setting, toxin research should guide radical surgical treatment and targeted antibiotic therapy
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