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  1. Book ; Online: Machine learning approaches for parameter reweighting in MC samples of top quark production in CMS

    Guglielmi, Valentina

    2023  

    Abstract: In particle physics, Monte Carlo (MC) event generators are needed to compare theory to the measured data. Many MC samples have to be generated to account for theoretical systematic uncertainties, at a significant computational cost. Therefore, the MC ... ...

    Abstract In particle physics, Monte Carlo (MC) event generators are needed to compare theory to the measured data. Many MC samples have to be generated to account for theoretical systematic uncertainties, at a significant computational cost. Therefore, the MC statistic becomes a limiting factor for most measurements and the significant computational cost of these programs a bottleneck in most physics analyses. In this contribution, the Deep neural network using Classification for Tuning and Reweighting (DCTR) approach is evaluated for the reweighting of two systematic uncertainties in MC simulations of top quark pair production within the CMS experiment. DCTR is a method, based on a Deep Neural Network (DNN) technique, to reweight simulations to different model parameters by using the full kinematic information in the event. This methodology avoids the need for simulating the detector response multiple times by incorporating the relevant variations in a single sample.

    Comment: To appear in the Proceedings of the European Physical Society conference, EPS2023, 20-25 August 2023 , Hamburg (Germany)
    Keywords High Energy Physics - Experiment
    Subject code 621
    Publishing date 2023-12-01
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Sporadic Inclusion Body Myositis at the Crossroads between Muscle Degeneration, Inflammation, and Aging.

    Guglielmi, Valeria / Cheli, Marta / Tonin, Paola / Vattemi, Gaetano

    International journal of molecular sciences

    2024  Volume 25, Issue 5

    Abstract: Sporadic inclusion body myositis (sIBM) is the most common muscle disease of older people and is clinically characterized by slowly progressive asymmetrical muscle weakness, predominantly affecting the quadriceps, deep finger flexors, and foot extensors. ...

    Abstract Sporadic inclusion body myositis (sIBM) is the most common muscle disease of older people and is clinically characterized by slowly progressive asymmetrical muscle weakness, predominantly affecting the quadriceps, deep finger flexors, and foot extensors. At present, there are no enduring treatments for this relentless disease that eventually leads to severe disability and wheelchair dependency. Although sIBM is considered a rare muscle disorder, its prevalence is certainly higher as the disease is often undiagnosed or misdiagnosed. The histopathological phenotype of sIBM muscle biopsy includes muscle fiber degeneration and endomysial lymphocytic infiltrates that mainly consist of cytotoxic CD8
    MeSH term(s) Humans ; Aged ; Myositis, Inclusion Body/genetics ; CD8-Positive T-Lymphocytes/metabolism ; Inflammation/complications ; Aging ; Proteins ; Myocardium/metabolism
    Chemical Substances Proteins
    Language English
    Publishing date 2024-02-27
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms25052742
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Ketogenic Diet for Preoperative Weight Reduction in Bariatric Surgery: A Narrative Review.

    Colangeli, Luca / Gentileschi, Paolo / Sbraccia, Paolo / Guglielmi, Valeria

    Nutrients

    2022  Volume 14, Issue 17

    Abstract: Bariatric surgery (BS) is the most effective treatment in reducing weight and the burden of comorbidities in patients with severe obesity. Despite the overall low mortality rate, intra- and post-operative complications remains quite common. Weight loss ... ...

    Abstract Bariatric surgery (BS) is the most effective treatment in reducing weight and the burden of comorbidities in patients with severe obesity. Despite the overall low mortality rate, intra- and post-operative complications remains quite common. Weight loss before BS reduces surgical risk, but studies are inconclusive regarding which is the best approach to apply. In this review, we summarize the current evidence on the effect of a ketogenic diet (KD) before BS. All studies agree that KD leads to considerable weight loss and important improvements in terms of surgical risk, but populations, interventions and outcomes are very heterogeneous. KD appears to be a safe and effective approach to induce weight loss before BS. However, randomized controlled trials with better-defined dietary protocols and homogeneous outcomes are necessary in order to draw firm conclusions.
    MeSH term(s) Bariatric Surgery ; Diet, Ketogenic/methods ; Humans ; Obesity, Morbid/surgery ; Treatment Outcome ; Weight Loss
    Language English
    Publishing date 2022-08-31
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2518386-2
    ISSN 2072-6643 ; 2072-6643
    ISSN (online) 2072-6643
    ISSN 2072-6643
    DOI 10.3390/nu14173610
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Determination of Saffron Quality through a Multi-Analytical Approach.

    Bergomi, Andrea / Comite, Valeria / Santagostini, Laura / Guglielmi, Vittoria / Fermo, Paola

    Foods (Basel, Switzerland)

    2022  Volume 11, Issue 20

    Abstract: Currently, the specifications for the assessment of saffron quality are contained in the ISO 3632 technical standard. This norm evaluates saffron quality through a UV-Vis spectrophotometric method and grades the spice into three commercial categories. ... ...

    Abstract Currently, the specifications for the assessment of saffron quality are contained in the ISO 3632 technical standard. This norm evaluates saffron quality through a UV-Vis spectrophotometric method and grades the spice into three commercial categories. However, numerous studies have highlighted several weaknesses and limitations of the ISO method. For this reason, a new multi-analytical approach for the determination of saffron quality is proposed in this work. Different techniques were employed to assess saffron quality: UV-visible spectroscopy (UV-Vis), attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM-EDX) and inductively coupled plasma-optical emission spectroscopy (ICP-OES). The results show that the commercial grading based on the ISO 3632 methodology is not always in line with the observations made with the other techniques. Moreover, the use of two new techniques in the field of saffron quality determination, i.e., SEM-EDX and ICP-OES, proved to be effective for the determination of elemental composition and metal content, which are two important parameters to take into consideration when assessing the quality of the spice.
    Language English
    Publishing date 2022-10-15
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2704223-6
    ISSN 2304-8158
    ISSN 2304-8158
    DOI 10.3390/foods11203227
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Editorial: Covid-19 and obesity.

    Guglielmi, Valeria / El Ghoch, Marwan / Bettini, Silvia / Holly, Jeff M P

    Frontiers in endocrinology

    2022  Volume 13, Page(s) 1122274

    MeSH term(s) Humans ; COVID-19 ; SARS-CoV-2 ; Obesity/complications ; Obesity/epidemiology
    Language English
    Publishing date 2022-12-23
    Publishing country Switzerland
    Document type Editorial
    ZDB-ID 2592084-4
    ISSN 1664-2392
    ISSN 1664-2392
    DOI 10.3389/fendo.2022.1122274
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Gli infortuni a rischio biologico in una realtà ospedaliera pugliese: studio osservazionale in una coorte di infermieri e studenti infermieri.

    Vitale, Elsa / Guglielmi, Vittorio / Iosca, Mirko / Celani, Fabrizio

    Giornale italiano di medicina del lavoro ed ergonomia

    2021  Volume 43, Issue 2, Page(s) 111–117

    Abstract: Summary: Introduction. An injury caused by a biological agent is an event that causes damage to the health of the operator. Nursing is one of the most affected professions. Objectives. This study aims to analyze and quantify the injuries caused by ... ...

    Title translation Biological injuries in a hospital in Puglia: an observational study between nurses and nursing students.
    Abstract Summary: Introduction. An injury caused by a biological agent is an event that causes damage to the health of the operator. Nursing is one of the most affected professions. Objectives. This study aims to analyze and quantify the injuries caused by exposure to biological agents among working nurses and students of the degree course in Nursing at the "F. Miulli" Regional General Ecclesiastical Body, located in Acquaviva delle Fonti, province of Bari, Italy. Methods. The retrospective study was carried out by collecting data from May 2019 to July 2019. The data were collected from the archive of biological accidents for the five-year period 2014-2018. The data collected was divided according to the professional category of the subject: whether it is a nurse-worker, or a nurse-student, enrolled in the Nursing course of the University of Bari Aldo Moro. Results. 249 injuries caused by biological agents were recorded, of which 69.1% were female and 30.9% were male. The operating units most involved are the medical branch departments (55.4%). The anatomical sites most affected are the upper limbs with 205 cases. Discussion. It is necessary to invest in training and refresher campaigns for nursing staff and nursing students in order to ensure the standards of effectiveness of the services provided and safety in providing them.
    MeSH term(s) Female ; Hospitals ; Humans ; Italy/epidemiology ; Male ; Nurses ; Retrospective Studies ; Students, Nursing
    Language Italian
    Publishing date 2021-08-09
    Publishing country Italy
    Document type Journal Article ; Observational Study
    ZDB-ID 603103-1
    ISSN 1592-7830 ; 0391-9889
    ISSN 1592-7830 ; 0391-9889
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Is type 2 diabetes an adiposity-based metabolic disease? From the origin of insulin resistance to the concept of dysfunctional adipose tissue.

    Sbraccia, Paolo / D'Adamo, Monica / Guglielmi, Valeria

    Eating and weight disorders : EWD

    2021  Volume 26, Issue 8, Page(s) 2429–2441

    Abstract: In the last decades of the past century, a remarkable amount of research efforts, money and hopes was generated to unveil the basis of insulin resistance that was believed to be the primary etiological factor in the development of type 2 diabetes. From ... ...

    Abstract In the last decades of the past century, a remarkable amount of research efforts, money and hopes was generated to unveil the basis of insulin resistance that was believed to be the primary etiological factor in the development of type 2 diabetes. From the Reaven's insulin resistance syndrome to the DeFronzo's triumvirate (skeletal muscle, liver and beta-cell) and to Kahn's discovery (among many others) of insulin receptor downregulation and autophosphorylation, an enthusiastic age of metabolic in vivo and in vitro research took place, making the promise of a resolutory ending. However, from many published data (those of insulin receptoropathies and lipodystrophies, the genome-wide association studies results, the data on reversibility of type 2 diabetes after bariatric surgery or very-low-calorie diets, and many others) it appears that insulin resistance is not a primary defect but it develops secondarily to increased fat mass. In particular, it develops from a mismatch between the surplus caloric intake and the storage capacity of adipose tissue. On this basis, we propose to change the today's definition of type 2 diabetes in adiposity-based diabetes.Level of Evidence as a narrative review a vast array of studies have been included in the analysis, ranging from properly designed randomized controlled trials to case studies; however, the overall conclusion may be regarded as level IV.
    MeSH term(s) Adipose Tissue ; Adiposity ; Diabetes Mellitus, Type 2 ; Genome-Wide Association Study ; Humans ; Insulin Resistance
    Language English
    Publishing date 2021-02-08
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 2038625-4
    ISSN 1590-1262 ; 1124-4909
    ISSN (online) 1590-1262
    ISSN 1124-4909
    DOI 10.1007/s40519-021-01109-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Staphylococcal scalded skin syndrome in adults with obesity and type 2 diabetes: A case series.

    Vitale, Carolina / Spinozzi, Valentina / Colangeli, Luca / Sbraccia, Paolo / Guglielmi, Valeria

    Clinical case reports

    2022  Volume 10, Issue 11, Page(s) e6471

    Abstract: Staphylococcal scalded skin syndrome (SSSS) primarily affects children and rarely adults with immunodepression. We describe two cases of adults diagnosed with SSSS with no additional cause of immunological compromise other than obesity and uncontrolled ... ...

    Abstract Staphylococcal scalded skin syndrome (SSSS) primarily affects children and rarely adults with immunodepression. We describe two cases of adults diagnosed with SSSS with no additional cause of immunological compromise other than obesity and uncontrolled diabetes. An increased risk of infection should be considered in cases of obesity and diabetes.
    Language English
    Publishing date 2022-11-16
    Publishing country England
    Document type Case Reports
    ZDB-ID 2740234-4
    ISSN 2050-0904
    ISSN 2050-0904
    DOI 10.1002/ccr3.6471
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Letter to the Editor. Classic radiological appearance of a carotid web.

    Guglielmi, Valeria / Mandell, Daniel M

    Journal of neurosurgery

    2019  , Page(s) 1–2

    Language English
    Publishing date 2019-04-05
    Publishing country United States
    Document type Journal Article ; Letter
    ZDB-ID 3089-2
    ISSN 1933-0693 ; 0022-3085
    ISSN (online) 1933-0693
    ISSN 0022-3085
    DOI 10.3171/2018.12.JNS183522
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Protein Expression of Canine and Feline Muscular Dystrophies.

    Salvadori, C / Vattemi, G / Guglielmi, V / Marini, M / Tomelleri, G / Cantile, C

    Topics in companion animal medicine

    2020  Volume 42, Page(s) 100500

    Abstract: Muscular dystrophies in dogs and cats represent a heterogeneous group of inherited, sometimes congenital, but infrequently diagnosed, progressive neuromuscular disorders. A correct identification and characterization of canine and feline muscular ... ...

    Abstract Muscular dystrophies in dogs and cats represent a heterogeneous group of inherited, sometimes congenital, but infrequently diagnosed, progressive neuromuscular disorders. A correct identification and characterization of canine and feline muscular dystrophies could increase diagnostic and treatment strategies for veterinary neurologists and could identify useful animal models for the study of human dystrophies. However, in dogs and cats, diagnosis of muscular dystrophies is challenging due to a nonspecific clinical phenotype and pathological lesions, thus is most likely underestimated. We performed immunofluorescence and Western blot techniques using a wide panel of antibodies against proteins involved in human dystrophies (dystrophin mid-rod and carboxyterminal domain, α, β, γ, and δ-sarcoglycan, α-dystroglycan, caveolin-3, emerin, merosin, dysferlin, calpain-3, spectrin epitopes), on 9 canine and 3 feline muscle biopsies characterized by myopathic changes. Dystrophin deficiency was detected in 3 dogs and 2 novel canine muscular dystrophies have been identified, characterized by deficiency of caveolin-3 and calpain-3, respectively. In 2 cats, deficiency of β-SG and carboxyterminal domain of dystrophin in all muscle fibers has been detected. Performing immunofluorescence and Western blot analyses with a wider panel of antibodies allowed a correct identification of muscular dystrophies in dogs and cats and provides a direction for subsequent targeted genetic testing.
    MeSH term(s) Animals ; Cat Diseases ; Cats ; Dog Diseases ; Dogs ; Dystrophin/metabolism ; Immunohistochemistry/veterinary ; Muscle, Skeletal ; Muscular Dystrophies/genetics ; Muscular Dystrophies/metabolism ; Muscular Dystrophies/pathology ; Sarcoglycans/analysis ; Sarcoglycans/deficiency ; Sarcoglycans/genetics
    Chemical Substances Dystrophin ; Sarcoglycans
    Language English
    Publishing date 2020-11-26
    Publishing country United States
    Document type Journal Article
    ISSN 1946-9837
    ISSN (online) 1946-9837
    DOI 10.1016/j.tcam.2020.100500
    Database MEDical Literature Analysis and Retrieval System OnLINE

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