Automatically combining static malware detection techniques

Malware detection techniques come in many different flavors, and cover different effectiveness and efficiency trade-offs. This paper evaluates a number of machine learning techniques to combine multiple static Android malware detection techniques using automatically constructed decision trees. We identify the best methods to construct the trees. We demonstrate that those trees classify sample apps better and faster than individual techniques alone

Analyse comparative d’une activité d’apprentissage de la programmation en mode branché et débranché

International audienceL’introduction de la programmation à l’école peut être un levier pour développer la penséeinformatique en lien avec une démarche de résolution de problèmes. Dans ce contexte, nous nous intéressonsaux différents types d’activités d’apprentissage de la programmation dans le but d’établir un protocole pourcomparer les activités branchées et débranchées à l’école, et plus particulièrement de voir dans quelle mesureune activité débranchée permet un transfert de compétences vers l’apprentissage de la programmation. Nousdiscutons la méthodologie et les résultats en lien aux observations réalisées au cours des activités deformation Class’Code

Characterization of the Formal Primary Caregiver in Merida, Yucatan

México cuenta con un sistema de salud público mixto y fragmentado. Por su parte, el segmento del sector privado es todavía más fragmentado y los servicios médicos de esta naturaleza en México son aún más escasos. Dicha fragmentación ha ocasionado grandes problemáticas en las que está inmerso el tema del cuidador primario pues aún no queda claro quién debe otorgar un servicio de esta naturaleza. El cuidador primario es aquella persona encargada de atender, en primera instancia las necesidades físicas, sociales y emocionales de una persona que por sí misma no puede hacerlo. El objetivo de este artículo fue caracterizar a un grupo de cuidadores formales de Mérida, Yucatán, fue realizada bajo un enfoque de tipo cualitativo, bajo un diseño de investigación fenomenológico, se implementaron entrevistas semiestructuradas para la recogida de datos en una muestra de 60 participantes que trabajan en instituciones de salud tanto del sector público y privado en la ciudad de Mérida, Yucatán. Los resultados nos indican que la mayoría de los cuidadores primarios formales son mujeres, trabajan en instituciones públicas o privadas, aunado a que tienen formaciones distintas y respecto al tipo de las actividades de cuidado que realizan cubren necesidades físicas, psicológicas y sociales.Mexico has a mixed and fragmented public health system. For its part, the private sector segment is even more fragmented and medical services of this nature in Mexico are even more scarce. This fragmentation has caused major problems in which the issue of the primary caregiver is immersed, as it is still not clear who should provide such a service. The primary caregiver is the person in charge of caring, in the fist instance, for the physical, social, and emotional needs of a person who cannot do so themselves. The objective of this article was to characterize a group of formal caregivers in Merida, Yucatan. It was carried out under a qualitative approach, employing a phenomenological research design, semi-structured interviews were implemented to collect data in a sample of 60 participants who work in healthcare institutions in both the public and private sectors in the city of Merida, Yucatan. The results indicate that most formal primary caregivers are women who work in public or private institutions, additionally with the fact that they have different training and with respect to the type of care activities they perform, they cover physical, psychological, and social needs

BHPR research: qualitative1. Complex reasoning determines patients' perception of outcome following foot surgery in rheumatoid arhtritis

Background: Foot surgery is common in patients with RA but research into surgical outcomes is limited and conceptually flawed as current outcome measures lack face validity: to date no one has asked patients what is important to them. This study aimed to determine which factors are important to patients when evaluating the success of foot surgery in RA Methods: Semi structured interviews of RA patients who had undergone foot surgery were conducted and transcribed verbatim. Thematic analysis of interviews was conducted to explore issues that were important to patients. Results: 11 RA patients (9 ♂, mean age 59, dis dur = 22yrs, mean of 3 yrs post op) with mixed experiences of foot surgery were interviewed. Patients interpreted outcome in respect to a multitude of factors, frequently positive change in one aspect contrasted with negative opinions about another. Overall, four major themes emerged. Function: Functional ability & participation in valued activities were very important to patients. Walking ability was a key concern but patients interpreted levels of activity in light of other aspects of their disease, reflecting on change in functional ability more than overall level. Positive feelings of improved mobility were often moderated by negative self perception ("I mean, I still walk like a waddling duck”). Appearance: Appearance was important to almost all patients but perhaps the most complex theme of all. Physical appearance, foot shape, and footwear were closely interlinked, yet patients saw these as distinct separate concepts. Patients need to legitimize these feelings was clear and they frequently entered into a defensive repertoire ("it's not cosmetic surgery; it's something that's more important than that, you know?”). Clinician opinion: Surgeons' post operative evaluation of the procedure was very influential. The impact of this appraisal continued to affect patients' lasting impression irrespective of how the outcome compared to their initial goals ("when he'd done it ... he said that hasn't worked as good as he'd wanted to ... but the pain has gone”). Pain: Whilst pain was important to almost all patients, it appeared to be less important than the other themes. Pain was predominately raised when it influenced other themes, such as function; many still felt the need to legitimize their foot pain in order for health professionals to take it seriously ("in the end I went to my GP because it had happened a few times and I went to an orthopaedic surgeon who was quite dismissive of it, it was like what are you complaining about”). Conclusions: Patients interpret the outcome of foot surgery using a multitude of interrelated factors, particularly functional ability, appearance and surgeons' appraisal of the procedure. While pain was often noted, this appeared less important than other factors in the overall outcome of the surgery. Future research into foot surgery should incorporate the complexity of how patients determine their outcome Disclosure statement: All authors have declared no conflicts of interes

Mortality and pulmonary complications in patients undergoing surgery with perioperative SARS-CoV-2 infection: an international cohort study

Background: The impact of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) on postoperative recovery needs to be understood to inform clinical decision making during and after the COVID-19 pandemic. This study reports 30-day mortality and pulmonary complication rates in patients with perioperative SARS-CoV-2 infection. Methods: This international, multicentre, cohort study at 235 hospitals in 24 countries included all patients undergoing surgery who had SARS-CoV-2 infection confirmed within 7 days before or 30 days after surgery. The primary outcome measure was 30-day postoperative mortality and was assessed in all enrolled patients. The main secondary outcome measure was pulmonary complications, defined as pneumonia, acute respiratory distress syndrome, or unexpected postoperative ventilation. Findings: This analysis includes 1128 patients who had surgery between Jan 1 and March 31, 2020, of whom 835 (74·0%) had emergency surgery and 280 (24·8%) had elective surgery. SARS-CoV-2 infection was confirmed preoperatively in 294 (26·1%) patients. 30-day mortality was 23·8% (268 of 1128). Pulmonary complications occurred in 577 (51·2%) of 1128 patients; 30-day mortality in these patients was 38·0% (219 of 577), accounting for 81·7% (219 of 268) of all deaths. In adjusted analyses, 30-day mortality was associated with male sex (odds ratio 1·75 [95% CI 1·28–2·40], p\textless0·0001), age 70 years or older versus younger than 70 years (2·30 [1·65–3·22], p\textless0·0001), American Society of Anesthesiologists grades 3–5 versus grades 1–2 (2·35 [1·57–3·53], p\textless0·0001), malignant versus benign or obstetric diagnosis (1·55 [1·01–2·39], p=0·046), emergency versus elective surgery (1·67 [1·06–2·63], p=0·026), and major versus minor surgery (1·52 [1·01–2·31], p=0·047). Interpretation: Postoperative pulmonary complications occur in half of patients with perioperative SARS-CoV-2 infection and are associated with high mortality. Thresholds for surgery during the COVID-19 pandemic should be higher than during normal practice, particularly in men aged 70 years and older. Consideration should be given for postponing non-urgent procedures and promoting non-operative treatment to delay or avoid the need for surgery. Funding: National Institute for Health Research (NIHR), Association of Coloproctology of Great Britain and Ireland, Bowel and Cancer Research, Bowel Disease Research Foundation, Association of Upper Gastrointestinal Surgeons, British Association of Surgical Oncology, British Gynaecological Cancer Society, European Society of Coloproctology, NIHR Academy, Sarcoma UK, Vascular Society for Great Britain and Ireland, and Yorkshire Cancer Research

Quality of life of patients with hip fracture was better during the COVID-19 period than before, an ancillary study from the HiFIT multicenter study

BackgroundThe COVID-19 pandemic had a global impact on people life, notably because of lockdown periods. This could particularly affected patients suffering from hip fracture, who could have been more isolated during these periods. We aim at evaluating the impact of the COVID-19 period (including lockdown periods) on quality of life (QOL) in older adult patients 90 days after a surgery for a hip fracture.Subject and methodsAncillary study of the prospective randomized controlled HiFIT study. We compared the QOL measured at 90 days after a hip fracture surgery using the EuroQOL-5 dimensions 3 levels (EQ-5D), the Perceived Quality of life (PQOL) and the Instrumental Activities of Daily Living (IADL) in patients included in the Hifit study before and during the COVID-19 pandemic.ResultsThe characteristics of the 161 patients included before and of the 213 included during the COVID period (including 122 (57%) during COVID with containment periods and 91 (43%) during COVID without containment periods) were similar (mean age 84 ± 10 years; 282 (75%) women). The majority (81%) of the patients alive at 90 days had returned to their previous place of residence in both periods. During the COVID period, EQ-5D showed better patient pain/discomfort and anxiety/depression levels. The PQOL happiness was not different, with around 81% of the patient being “happy” or “very happy” during the two periods and the IADL was also similar during the two periods. In the multivariate analysis odd ratios of having poorer outcomes were increased before COVID for pain/discomfort (OR 2.38, 95%CI [1.41–4.15], p = 0.001), anxiety (OR 1.89 [1.12–3.21], p = 0.017) and mobility (1.69 [1.02–2.86], p = 0.044).ConclusionPatient’s quality of life measured using different scales was not altered during the COVID period compared to before COVID, 90 days after a hip fracture. Surprisingly, the Pain/Discomfort and Anxiety dimensions of the EQ-5D questionnaires were even better during the COVID period.Clinical trial registration:https://clinicaltrials.gov/ (NCT02972294)

« La vie HLM. Histoires d’habitant•e•s de logements populaires. Aubervilliers, 1950-2000 », 8 allée Charles Grosperrin, Aubervilliers

International audienceLaurent Coudroy de Lille et Charlotte Vorms en entretien avec Muriel Cohen, maîtresse de conférences à l’université du Mans, Cédric David, chercheur associé au Centre d’Histoire Sociale et professeur d’histoire-geographie en collège à Saint-Denis, Sébastien Radouan, chargé de la coordination scientifique de l’AMuLoP et MCF associé à l’Ecole d’architecture de Paris-La Villett

Promoción de la salud: hábitos de vida saludable en estudiantes de preparatorias, estudio diagnóstico

Although health is a dynamic concept, it is usually approached from the point of view of loss (diseases or risk factors). Health Promotion recognizes this concept in a positive way and focuses on the factors that contribute to it, seeking that all people develop their greatest health potential taking into account the assets of the community and the underlying social conditions that determine a better health. or worse health (the Social Determinants of Health). The objective of this article focuses on knowing the life habits of students in two high school schools to formulate a comprehensive diagnosis oriented under the focus of health promotion. For this purpose, three instruments were used: the Health and Healthy Habits Battery, the Perceived Stress Scale (PSS-14) and the Beck Depression Inventory in a sample of 67 adolescents from Yucatán. The results generally describe the quality of life habits through different dimensions: sports and outdoor activities; healthy behavior and disease recurrence; use and abuse of harmful substances; rest and quality of sleep; feeding; recreation; sexual health; perceived stress and depression.Aunque la salud es un concepto dinámico, habitualmente se aborda desde la visión de pérdida (enfermedades o factores de riesgo). La Promoción de la Salud reconoce este concepto de manera positiva y se centra en los factores que contribuyen a ella, buscando que todas las personas desarrollen su mayor potencial de salud tomando en cuenta los activos de la comunidad y las condiciones sociales subyacentes que determinan una mejor o peor salud (los Determinantes Sociales de la Salud). El objetivo del presente artículo se enfoca en conocer los hábitos de vida de los estudiantes en dos planteles de educación preparatoria para formular un diagnóstico integral orientado bajo el enfoque de la promoción de la salud. Para ello se utilizaron tres instrumentos: la Batería de Salud y Hábitos Saludables, la Escala de Estrés Percibido (PSS-14) y el Inventario de Depresión de Beck en una muestra de 67 adolescentes de Yucatán. Los resultados describen de manera general la calidad de los hábitos de vida a través de diferentes dimensiones: deportes y actividad al aire libre; conducta saludable y recurrencia de la enfermedad; uso y abuso de sustancias nocivas; descanso y calidad del sueño; alimentación; recreación; salud sexual; estrés percibido y depresión