25 research outputs found
Surgical and Bioengineering Integration in the Anatomy Course of Medicine and Surgery High Technology: Knowledge and Perception of Anatomy
The Locomotor System Anatomy (LSA) course, placed in the first semester of the first year of the new Master’s degree in Medicine and Surgery High Technology (MSHT) at the Sapienza University of Rome, was integrated with surgical and bioengineering content. This study investigated the educational value and the students’ perceptions of the effectiveness of these two types of integration, comparing surgical integration (SI) with engineering integration (EI). Anatomy knowledge and students’ opinions attending the LSA course in MSHT degree (n = 30) were compared with those of students (n = 32) attending another medical and surgery course not comprising EI. Data show that students in the MSHT course like in-depth SI much more than in-depth EI. However, those who like in-depth SI also like in-depth EI. Significant differences were in anatomy knowledge between the two groups in the three sections of the test. There was no significant correlation between the three test scores and the levels of liking, while there was a significant correlation between students liking SI and those liking EI. A statistically significant correlation was also found in students who correctly responded to questions on the head and trunk, with students responding correctly to questions on the upper limbs. This study will be important in optimizing the deepening of SI and EI in the LSA course.
Keywords: human anatomy; anatomical sciences education; gross anatomy teaching; locomotor system; neurosurgery; orthopedics; surgical integration; bioengineering integration; technical physician; technical medicin
Electrochemotherapy in Vulvar Cancer and Cisplatin Combined with Electroporation. Systematic Review and In Vitro Studies
Electrochemotherapy (ECT) is an emerging treatment for solid tumors and an attractive
research field due to its clinical results. This therapy represents an alternative local treatment to
the standard ones and is based on the tumor-directed delivery of non-ablative electrical pulses to
maximize the action of specific cytotoxic drugs such as cisplatin (CSP) and bleomycin (BLM) and to
promote cancer cell death. Nowadays, ECT is mainly recommended as palliative treatment. However,
it can be applied to a wide range of superficial cancers, having an impact in preventing or delaying
tumor progression and therefore in improving quality of life. In addition, during the natural history
of the tumor, early ECT may improve patient outcomes. Our group has extensive clinical and research
experience on ECT in vulvar tumors in the palliative setting, with 70% overall response rate. So far, in
most studies, ECT was based on BLM. However, the potential of CSP in this setting seems interesting
due to some theoretical advantages. The purpose of this report is to: (i) compare the efficacy of CSP
and BLM-based ECT through a systematic literature review; (ii) report the results of our studies on
CSP-resistant squamous cell tumors cell lines and the possibility to overcome chemoresistance using
ECT; (iii) discuss the future ECT role in gynecological tumors and in particular in vulvar carcinoma
Legal immigrants: invasion of alien microbial communities during winter occurring desert dust storms
Background
A critical aspect regarding the global dispersion of pathogenic microorganisms is associated with atmospheric movement of soil particles. Especially, desert dust storms can transport alien microorganisms over continental scales and can deposit them in sensitive sink habitats. In winter 2014, the largest ever recorded Saharan dust event in Italy was efficiently deposited on the Dolomite Alps and was sealed between dust-free snow. This provided us the unique opportunity to overcome difficulties in separating dust associated from “domestic” microbes and thus, to determine with high precision microorganisms transported exclusively by desert dust.
Results
Our metagenomic analysis revealed that sandstorms can move not only fractions but rather large parts of entire microbial communities far away from their area of origin and that this microbiota contains several of the most stress-resistant organisms on Earth, including highly destructive fungal and bacterial pathogens. In particular, we provide first evidence that winter-occurring dust depositions can favor a rapid microbial contamination of sensitive sink habitats after snowmelt.
Conclusions
Airborne microbial depositions accompanying extreme meteorological events represent a realistic threat for ecosystem and public health. Therefore, monitoring the spread and persistence of storm-travelling alien microbes is a priority while considering future trajectories of climatic anomalies as well as anthropogenically driven changes in land use in the source regions
Infected pancreatic necrosis: outcomes and clinical predictors of mortality. A post hoc analysis of the MANCTRA-1 international study
: The identification of high-risk patients in the early stages of infected pancreatic necrosis (IPN) is critical, because it could help the clinicians to adopt more effective management strategies. We conducted a post hoc analysis of the MANCTRA-1 international study to assess the association between clinical risk factors and mortality among adult patients with IPN. Univariable and multivariable logistic regression models were used to identify prognostic factors of mortality. We identified 247 consecutive patients with IPN hospitalised between January 2019 and December 2020. History of uncontrolled arterial hypertension (p = 0.032; 95% CI 1.135-15.882; aOR 4.245), qSOFA (p = 0.005; 95% CI 1.359-5.879; aOR 2.828), renal failure (p = 0.022; 95% CI 1.138-5.442; aOR 2.489), and haemodynamic failure (p = 0.018; 95% CI 1.184-5.978; aOR 2.661), were identified as independent predictors of mortality in IPN patients. Cholangitis (p = 0.003; 95% CI 1.598-9.930; aOR 3.983), abdominal compartment syndrome (p = 0.032; 95% CI 1.090-6.967; aOR 2.735), and gastrointestinal/intra-abdominal bleeding (p = 0.009; 95% CI 1.286-5.712; aOR 2.710) were independently associated with the risk of mortality. Upfront open surgical necrosectomy was strongly associated with the risk of mortality (p < 0.001; 95% CI 1.912-7.442; aOR 3.772), whereas endoscopic drainage of pancreatic necrosis (p = 0.018; 95% CI 0.138-0.834; aOR 0.339) and enteral nutrition (p = 0.003; 95% CI 0.143-0.716; aOR 0.320) were found as protective factors. Organ failure, acute cholangitis, and upfront open surgical necrosectomy were the most significant predictors of mortality. Our study confirmed that, even in a subgroup of particularly ill patients such as those with IPN, upfront open surgery should be avoided as much as possible. Study protocol registered in ClinicalTrials.Gov (I.D. Number NCT04747990)
Influence of static load on airflow resistivity determination
The effect of static load on flow resistivity of sound absorbing materials and the influence on the measurement of the dynamic stiffness of materials used in building acoustic are presented. The apparatus built at INRiM is shown and a simplified model of the variation of resistivity with load is proposed
Measurement variability of air flow resistance using different test methods and its impact on simulated sound levels in the car development process
Sliding mode control for urban vehicles platooning
In the short term future, cybernetic transport systems (CTS), based on fully automated urban vehicles (the so-called Cybercars), will be seen on city roads and on new dedicated infrastructures. The objective of the Cybercars is to achieve a more effective organization of urban transport, resulting in a more rational use of motorized traffic, with less congestion and pollution and safer driving. One necessary functionality of Cybercars is the ability to cooperate and run in a platoon at close range. Platooning of these automatic guided cars is addressed in this paper, and decentralized control schemes for autonomous vehicle are proposed. Due to system uncertainties and the wide range of operating conditions, which are typical of the automotive context, a robust control technique is required to solve the problem. The robust control methodologies adopted in this paper are first order and second order sliding mode control, which result particularly suitable to deal with uncertain nonlinear time-varying systems. The proposed control schemes are compared through simulations
Confronto tra metodiche di misura della resistenza al flusso d’aria e miglioramento della riproducibilità inter-laboratorio
ASPIS, A Flexible Multispectral System for Airborne Remote Sensing Environmental Applications
Airborne multispectral and hyperspectral remote sensing is a powerful tool for environmental monitoring applications. In this paper we describe a new system (ASPIS) composed by a 4-CCD spectral sensor, a thermal IR camera and a laser altimeter that is mounted on a flexible Sky-Arrow airplane. A test application of the multispectral sensor to estimate durum wheat quality is also presented