Children’s Positive Peer Relationships and their Bullying Behaviors: A Latent Profile Analysis

In the current study, I aim to expand upon traditional methods for classifying children based on positive peer nominations and contribute to the field’s understanding of high-status bullies who maintain social resources despite bulling behaviors (e.g., van der Ploeg et al., 2020). Both reciprocated and one-sided (i.e., received and sent) positive peer nominations were used to distinguish socially meaningful subgroups. Participants included 659 children from 34 classrooms (M Age = 9.31 years, SD = .49 years; girls = 50.6%; Hispanic/Latino/a/x = 42.5%, White/European American = 29.9%, Black/African American = 2.3%, Asian/Asian American/Pacific Islander = 11.7%, Native American = 2.3%, Bi/Multiracial = 8.2%, Other or Missing = 4.6%). Results from latent profile analyses (LPA) indicated a 4-class solution best fit the data. Examination of classes and outcomes revealed a class of children with many reciprocated/received and few sent nominations who were more likely to be girls and generally better adjusted (e.g., less depressive symptoms and more prosocial) compared to other classes. A second class was characterized by few reciprocated/received and many sent nominations. Children in this class were less well-adjusted compared to other classes. Also identified was a class high on both reciprocated and sent nominations with few received nominations, and an average class with similar levels of reciprocated, received, and sent nominations. Classes did not differ as a function of self-reported bullying behavior; however, differences did emerge as a function of peer-reported bullying behavior. Results, implications, and future directions are discussed

Effect of hot-dip galvanization on the fatigue behaviour of welded structural steel

Abstract This paper investigates the effect of a galvanizing coating on the fatigue strength of S355 structural steel. While in the literature some results from fatigue tests made on unnotched specimens can be found, very few results are available dealing with notched components and, at the best of authors' knowledge, no results are available dealing with welded joints. The aim of the present paper is to partially fill this lack of knowledge. A comparison is carried out, between hot dip galvanized fillet welded cruciform joints made by S355 structural steel and not treated welded joints characterized by the same geometry, subjected to a load cycle R = 0. 34 new experimental data are summarized in the present contribution, in terms of stress range Δσ and averaged strain energy density range ΔW in a control volume of radius R0 = 0.28 mm

Noninvasive treatment of pneumoperitoneum after gastric mucosectomy microperforation

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Endoscopic Submucosal Dissection of Gastric Neoplastic Lesions. An Italian, Multicenter Study

Endoscopic submucosal dissection (ESD) allows removing neoplastic lesions on gastric mucosa, including early gastric cancer (EGC) and dysplasia. Data on ESD from Western countries are still scanty. We report results of ESD procedures performed in Italy. Data of consecutive patients who underwent ESD for gastric neoplastic removal were analyzed. The en bloc resection rate and the R0 resection rates for all neoplastic lesions were calculated, as well as the curative rate (i.e., no need for surgical treatment) for EGC. The incidence of complications, the one‐month mortality, and the recurrence rate at one‐year follow‐up were computed. A total of 296 patients with 299 gastric lesions (80 EGC) were treated. The en bloc resection was successful for 292 (97.6%) and the R0 was achieved in 266 (89%) out of all lesions. In the EGC group, the ESD was eventually curative in 72.5% (58/80) following procedure. A complication occurred in 30 (10.1%) patients. Endoscopic treatment was successful in all 3 perforations, whereas it failed in 2 out of 27 bleeding patients who were treated with radiological embolization (1 case) or surgery (1 case). No procedure‐related deaths at one‐month follow‐up were observed. Lesion recurrence occurred in 16 (6.2%) patients (6 EGC and 10 dysplasia). In conclusion, the rate of both en bloc and R0 gastric lesions removal was very high in Italy. However, the curative rate for EGC needs to be improved. Complications were acceptably low and amenable at endoscopy

Notch Effect on the Fatigue Behavior of a Hot Dip Galvanized Structural Steel

Исследовано влияние гальванического покрытия на усталостную прочность конструкционной стали S355. Несмотря на наличие в литературных источниках экспериментальных данных по гладким образцам из этого материала с покрытием, почти отсутствуют таковые по образцам с концентраторами напряжений. Выполнен сравнительный анализ образцов с центральным отверстием, подвергнутых гальванизации методом горячего погружения, и исходных образцов той же геометрии. Усталостные испытания проводились при двух постоянных значениях асимметрии цикла нагружения. Получено и проанализировано 60 новых экспериментальных данных.Досліджено вплив гальванічного покриття на втомну міцність конструкційної сталі S355. Незважаючи на те, що в літературних джерелах є експериментальні дані щодо гладких зразків із цього матеріалу з покриттям, майже відсуті дані щодо зразків із концентратором напружень. Виконано порівняльний аналіз зразків із центральним отвором, ще зазнали гальванізації методом гарячого занурення, і вихідних зразків такої ж геометрії. Випробування на втому проводились при двох постійних значеннях асиметрії циклу навантаження. Отримано і проаналізовано 60 нових експериментальних даних

Buried lumen-apposing metal stent after gastrojejunal bypass

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An unusual case of impacted biliary stone

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Endoscopic management of patients with post-surgical leaks involving the gastrointestinal tract: a large case series

Background: Post-surgical anastomotic leaks often require a re-intervention, are associated with a definite morbidity and mortality, and with relevant costs. We described a large series of patients with different post-surgical leaks involving the gastrointestinal tract managed with endoscopy as initial approach. Methods: This was a retrospective analysis of prospectively collected cases with anastomotic leaks managed with different endoscopic approaches (with surgical or radiological drainage when needed) in two endoscopic centres during 5 years. Interventions included: (1) over-the-scope clip (OTSC) positioning; (2) placement of a covered self-expanding metal stent (SEMS); (3) fibrin glue injection (Tissucol); and (4) endo-sponge application, according to both the endoscopic feature and patient’s status. Results: A total of 76 patients underwent endoscopic treatment for a leak either in the upper (47 cases) or lower (29 cases) gastrointestinal tract, and the approach was successful in 39 (83%) and 22 (75.9%) patients, respectively, accounting for an overall 80.3% success rate. Leak closure was achieved in 84.9% and 78.3% of patients managed by using a single or a combination of endoscopic devices. Overall, leak closure failed in 15 (19.7%) patients, and the surgical approach was successful in all 14 patients who underwent re-intervention, whilst one patient died due to sepsis at 7 days. Conclusions: Our data suggest that an endoscopic approach, with surgical or radiological drainage when needed, is successful and safe in the majority of patients with anastomotic gastrointestinal leaks. Therefore, an endoscopic treatment could be attempted before resorting to more invasive, costly and risky re-intervention

Local strain energy density for the fatigue assessment of hot dip galvanized welded joints: some recent outcomes

Since in literature only data about the effect of the hot-dip galvanizing coating on fatigue behavior of unnotched specimens are available, whereas very few for notched components and none for welded joints, the aim of this paper is to partially fill this lack of knowledge comparing fatigue strength of uncoated and hot-dip galvanized fillet welded cruciform joints made of structural steel S355 welded joints, subjected to a load cycle R = 0. 34. The results are shown in terms of stress range ?? and of the averaged strain energy density range DeltaW in a control volume of radius R0 = 0.28 m