Publications by authors named "Zavattini G"

Article Synopsis
  • The XENONnT dark matter experiment successfully measured nuclear recoils from solar ^{8}B neutrinos, marking a significant advancement in neutrino detection technology.
  • Using a two-phase time projection chamber with a 5.9 t liquid xenon target, the experiment produced 37 observed events, which surpassed the expected background events, indicating a notable signal.
  • The results provide a measured solar neutrino flux consistent with previous studies and confirm the neutrino cross section predictions aligned with the Standard Model, showcasing the effectiveness of dark matter detectors in neutrino research.
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The XENONnT dark matter experiment.

Eur Phys J C Part Fields

August 2024

The multi-staged XENON program at INFN Laboratori Nazionali del Gran Sasso aims to detect dark matter with two-phase liquid xenon time projection chambers of increasing size and sensitivity. The XENONnT experiment is the latest detector in the program, planned to be an upgrade of its predecessor XENON1T. It features an active target of 5.

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Background: The study of romantic relationships is based on attachment theory and the Current Relationship Interview (CRI) is a powerful tool that allows the optimal investigation of attachment representations toward romantic partners. However, evidence in this field is still unsatisfactory and further research is needed. This study aims to examine the associations between the adult attachment to partner, the style of conflict resolution, and dyadic adjustment.

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Article Synopsis
  • The XENONnT experiment conducted the first search for nuclear recoils caused by weakly interacting massive particles (WIMPs) using a 5.9-ton liquid xenon detector.
  • During the experiment, the background noise from radioactive isotopes was minimized, yielding a low electronic recoil background rate of 15.8 events per ton per year per keV.
  • The analysis found no significant excess of nuclear recoil events, leading to an improved upper limit on the WIMP-nucleon interaction cross section, surpassing previous results from the earlier XENON1T experiment.
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Multiple viable theoretical models predict heavy dark matter particles with a mass close to the Planck mass, a range relatively unexplored by current experimental measurements. We use 219.4 days of data collected with the XENON1T experiment to conduct a blind search for signals from multiply interacting massive particles (MIMPs).

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Atypical femoral fractures (AFF) are stress or insufficiency fractures induced by low energy trauma or no trauma, frequently correlated with prolonged bisphosphonate therapy. The diagnosis follows major and minor criteria, originally described by the Task Force of the American Society for Bone and Mineral Research in 2010 and updated in 2014. However, the definition of AFFs in the report excluded periprosthetic fractures.

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Aim To demonstrate a reduction of risk factors ray-depending in proximal femur nailing of intertrochanteric femur fractures, comparing standard technique with computer-assisted navigation system. Methods One hundred patients hospitalised between October 2021 and June 2022 with intertrochanteric femur fractures type 31-A1 and 31-A2 were prospectively enrolled and divided randomly into two groups. A study group was treated with computer-assisted navigation system ATLAS (Masmec Biomed, Modugno, Bari, Italy) (20 patients), while a control group received the standard nailing technique.

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Background: Patellofemoral arthroplasty (PFA) is a surgical option for patients older than 40 years old who are affected by patellofemoral osteoarthritis. Regarding the complications of PFAs, few studies have investigated periprosthetic fractures. The purpose of this literature review was to highlight a previously overlooked complication of primary prosthetic surgery of the patellofemoral joint.

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Introduction: Coronal shear fractures of the distal humerus are uncommon injuries representing 6% of distal humeral fractures. There is no univocal consensus about the correct management of this type of fracture. A national survey was conducted to gain more insight into the current classification, diagnosis and treatment of coronal shear fractures in Italy.

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We report on a blinded analysis of low-energy electronic recoil data from the first science run of the XENONnT dark matter experiment. Novel subsystems and the increased 5.9 ton liquid xenon target reduced the background in the (1, 30) keV search region to (15.

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The selection of low-radioactive construction materials is of the utmost importance for rare-event searches and thus critical to the XENONnT experiment. Results of an extensive radioassay program are reported, in which material samples have been screened with gamma-ray spectroscopy, mass spectrometry, and Rn emanation measurements. Furthermore, the cleanliness procedures applied to remove or mitigate surface contamination of detector materials are described.

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Introduction: As the reverse total shoulder arthroplasty (RTSA) surgery has dramatically increased in the last few decades, many complications have followed through. The periprosthetic fracture, at the moment, is still a subject of debate in the orthopedic world. In this monocentric study, along with a literature review of periprosthetic humeral fractures, we would present our institutional experience with the treatment of periprosthetic humeral fractures with a posterior humeral approach, posterior cortex plate fixation, anterior strut allograft, screws, and cerclage wires.

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Background: Intertrochanteric and subtrochanteric non-union are rare but challenging complications. In the present study, we investigate the use of a 95° blade, in association with biological and mechanical augmentation, in the management of intertrochanteric and subtrochanteric femoral non-unions.

Methods: Between October 2015 and February 2021, a retrospective cohort study was conducted at our institution to investigate the use of a 95° blade, in association with biological and mechanical augmentation, in the management of intertrochanteric and subtrochanteric femoral non-unions, following the mechanical failure of the first device.

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A systematic review and meta-analysis were conducted to evaluate the quality and validity of Family Drawings (FD) with an Attachment-Based Coding System in assessing attachment representations among pre-school and school-age children. A literature search in notable databases identified 645 records, of which 20 were eligible after screening and quality assessment. Results showed: 1) ABCD attachment distribution in community children was: 48% secure, 20% avoidant, 21% ambivalent, 11% disorganized.

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The selection of low-radioactive construction materials is of utmost importance for the success of low-energy rare event search experiments. Besides radioactive contaminants in the bulk, the emanation of radioactive radon atoms from material surfaces attains increasing relevance in the effort to further reduce the background of such experiments. In this work, we present the Rn emanation measurements performed for the XENON1T dark matter experiment.

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Background: An early positive mother-child relationship is a central factor in the development of a psychologically balanced personality. The study aims to identify risk and protective factors for the development of a balanced maternal-infant postnatal attachment. We explored the association between maternal-infant attachment and prenatal and postnatal variables potentially implicated in the development of this early bond: maternal-foetal prenatal attachment, social support, memories of parental care, romantic attachment, dyadic adjustment, parity, breastfeeding, planning pregnancy, woman's and infant's age, and difficulty of delivery.

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We report on a search for nuclear recoil signals from solar ^{8}B neutrinos elastically scattering off xenon nuclei in XENON1T data, lowering the energy threshold from 2.6 to 1.6  keV.

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Clinical biophysics investigates the relationship between non-ionizing physical energy and the human body. This narrative review aims to summarize the current evidence on the efficacy of PEMF-therapy in the promotion of fracture healing. The effectiveness of PEMFs has been deeply investigated in preclinical in vitro ed in vivo studies and level-I clinical studies.

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Early parent-child relationships are an important factor influencing many domains of child development, even in the presence of autism. In this study, we investigated the associations between parent-child attunement during play, parental insightfulness, and parental acceptance of their child's diagnosis of an autism spectrum disorder. A sample of 50 parents (26 mothers and 24 fathers) of 26 children aged between 24 and 58 months were videotaped during parent-child play interactions and then interviewed about what they thought had gone through their child's head during the play interaction, and about their feelings and thoughts about their child's diagnosis.

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Objective: The attachment theory is a useful framework for interpreting the phenomenon of intimate partner violence (IPV) perpetration. Although several studies have examined the relationship between attachment and IPV perpetration, a meta-analysis of these results has yet to be conducted.

Method: After a search on five databases (PsycINFO, PsycARTICLES, MEDLINE, Scopus, Web of Science, and PubMed) and a screening of 3,852 records recruited, 52 studies comprising 13,653 individuals met the inclusion criteria for this meta-analysis.

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The aim of the current study was to examine the factorial structure of the Manchester Child Attachment Story Task (MCAST), using a father doll to address the child's attachment representation to father. While the MCAST, a doll story completion task measuring attachment representations in early childhood, has been validated for use with a mother doll, its use for assessing attachment to father is relatively unexplored. Thus, an additional aim was to compare the factorial structure of the child's attachment representation to father and mother, respectively.

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Based on cross-sectional research linking poor reflective functionining (RF) to eating disorders, the current follow-up study tested whether maternal RF would explain the variance of mothers' and children's weight beyond the effects of maternal emotional dysregulation. During pregnancy (Time 1 [T1]), 51 women were administered the Difficulties in Emotion Regulation Scale (DERS) and interviewed using the Adult Attachment Interview (AAI). Seven months after delivery (Time 2 [T2]), mother-baby dyads who remained in the study (n = 44) were videotaped (Feeding Scale) during their feeding interaction.

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Background: The Prenatal Attachment Inventory (PAI) is a widely used questionnaire to measure prenatal attachment. However, its internal structure is controversial. None of the previous studies have investigated the dimensions of the Italian version of the scale using both an exploratory and a confirmatory approach.

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Objective: impaired maternal bonding is a risk factor for problems with infant well-being and development. The investigation of perinatal variables related to disorders of the mother-infant relationship as well as the administration of reliable and valid screening tools to new mothers in the postpartum can help identify early signs of a disturbed mother-child relationship. The Postpartum Bonding Questionnaire (PBQ) has been shown to be a valid screening instrument, but its dimensional structure is still controversial.

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