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Non-symmetric differentially subordinate martingales and sharp weak-type bounds for Fourier multipliers

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Science China Mathematics 2024年第8期67卷 1807-1826页

作者： meryem Akboudj Yong Jiao Adam Osękowski School of Mathematics and Statistics Hunan Key Laboratory of Analytical Mathematics and ApplicationsCentral South UniversityChangsha 410075China Faculty of Mathematics Informatics and MechanicsUniversity of WarsawWarsaw 02-097Poland

Let p>2 be a given *** this paper,we prove,with the best constant,the weak-type(p,p)inequality■for a large class of non-symmetric Fourier multipliers T_(m) obtained via modulation of jumps of certain Lévy *** particular,the estimate holds for appropriate linear combinations of second-order Riesz transforms and skew versions of the Beurling-Ahlfors operator on the complex *** proof rests on a novel probabilistic bound for Hilbert-space-valued martingales satisfying a certain non-symmetric subordination *** applications to harmonic functions and Riesz systems on Euclidean domains are indicated.

关键词： weak-type bound Fourier multiplier martingale differential subordination laminate

KAP Survey of Turkish University Students on Sexuality,reproductive Health,Drug Addiction and Violence

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Journal of Reproduction and Contraception 2006年第4期17卷 315-326页

作者： H■zel Selda Sanli Cihat albayrak meryem Fidan Serdar Agar Ayca K■r■kkale University School of Medicine Pediatrics Department

Objective To investigate the attitudes, behaviours and reflections of the university students, on sexuality, reproductive health, violence, smoking, alcohol and drug use, and to find out their expectations from a youth health service. Methods A total of 5 300 students （1 880 girls, 3 420 boys）from various Jaculties of Kyrykkale University were enrolled into this cross-sectional study. Students completed the self-administered questionnaire as one of the researchers was present at the classroom. Research monitors five categories of priority health-risk behaviours among youth and young adults. Results Mean age of 3 420 male （64.5%） and 1 880female （35.5%） students were 20.3 years. Among all 4 380 （82,9%） students [1 350 girls （71.8%）, 3 030 boys （88.5%）] had some kinds of information about sexuality, however this dropped to 2 730 students （51.5%） within the context of adequacy. Friends were the major source （34%） for the first information on sexuality. Using a condom was the mostly heard method of contraception （46.9%） and interestingly 1.1% of the students had no knowledge on any of the protection methods. Among all 25.3% of the students （33.0% boys, 11.4% girls） had some kind of sexual intercourse, and within this group 58.8% experienced his/her first sexual relationship at 18 years of age and over; 53.9% were protected in all intercourses. Using a condom was the main way of protection for boys （63.7%） and pills were for the girls （73.9%）. None of the female students mentioned having an abortion but 8% had friends who had undergone abortion. Tobacco use was 35.1% among the group, and 8. 7% of the male and 3.6% of the female students were using drugs. Although 67. 4% students claimed they never witnessed violence between their parents, 43.2% witnessed violence among their siblings, 67.0% beween friends, 72.6% in the streets and 64.2% in the school. About 30.0% of the students reported having weight problems, and 14.7% admitted visiting a doctor for that problem.

关键词： adolescent sexuality reproductive health drug addiction violence

Epidemic management in a measles outbreak in 2023,the return of vaccine-preventable diseases:A single center,retrospective observational study

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Asian Pacific Journal of Tropical Medicine 2024年第3期17卷 110-118页

作者： Sevgi Aslan Tuncay Gulsen Akkoc Seyhan Yilmaz Burcu Parlak Pinar Canizci Erdemli Aylin Dizi Isik Didem Buyuktas Aytac meryem Cagla Abaci Capar Eda Kepenekli Kadayifci Marmara University Faculty of Medicine Department of Pediatric Infectious DiseaseIstanbulTurkey

Objective:To investigate the importance of immunization in preventing measles infection and to determine the most useful laboratory tests for confirmation of ***:This study included pediatric cases evaluated with a presumed diagnosis of measles between December 2022 and June 2023,at Marmara University Pendik Training and Research *** effects of vaccination status and underlying disease on the clinical course,treatments,and complications were ***:In total,117 patients were enrolled in the study with a median age of 80 months(IQR:32.5-125.0).Twelve patients with contact history were asymptomatic and had an underlying disorder,and intravenous immunoglobulin was given to them for post-exposure ***-one patients had confirmed measles *** treatment was given to three patients(a newborn,a girl with rhabdomyosarcoma,and a healthy boy)with respiratory ***-eight percent of confirmed measles cases were unvaccinated,and all hospitalized cases were unvaccinated or *** full-vaccinated children had confirmed measles *** PCR from nasopharyngeal swabs was negative in all of them,and their diagnosis was established with anti-measles IgM ***:The measles vaccine is the most effective way to protect from measles and measles-related *** measles can also occur in fully vaccinated patients,the disease is milder than in unvaccinated *** ELISA and RT-PCR tests together may be beneficial in patients with high clinical suspicion for early diagnosis.

关键词： Measles Outbreak Vaccination Vitamin A Ribavirin

Kaposi Sarcoma after Kidney Transplant: A Clinical Case Report

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Open Journal of Nephrology 2024年第1期14卷 115-123页

作者： meryem Benbella Zaineb Kaouiri Imane Saidi Naima Ouzedoun Tarik Bouattar Department of Nephrology-Dialysis-Renal Transplantation Ibn Sina University Hospital in Rabat Rabat Morocco Faculty of Medicine and Pharmacy in Rabat Mohammed V University Rabat Morocco

Kaposi sarcoma is a neoplasm caused by human herpesvirus 8 (HHV8) that most commonly affects immunosuppressed patients. The skin is the most affected area, but other sites can be involved such as the lung, digestive tract and lymph nodes. The classical presentation involves a violaceous skin lesion that can be small or hidden, leading to a delay in diagnosis. We report a clinical case of a kidney transplant patient, who presented, 14 months after kidney transplant, with unilateral edema of the inferior member and cutaneous rash misdiagnosed and taken initially for erysipelas. The diagnosis of Kaposi’s sarcoma was retained, on a lymph node biopsy of an inguinal adenopathy. The evolution was marked by a local and general improvement after systemic chemotherapy, reducing Tacrolimus and discontinuation of Mycophenolate mofetil. Graft function remained stable during the follow-up.

关键词： Kaposi Kidney Transplant HHV8 Immunosuppression

Cerebral Glioblastoma in Renal Transplant Recipient: A Case Report

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Open Journal of Nephrology 2024年第1期14卷 10-16页

作者： Imane Saidi meryem Benbella Loubna Benamar Naima Ouzeddoun Tarik Bouattar Department of Nephrology Dialysis and Renal Transplantation Ibn Sina University Hospital Rabat Morocco Faculty of Medicine and Pharmacy Mohammed V University Rabat Morocco

Cancers is a leading cause of mortality among transplant recipients. The most common cancers are skin tumors. Glioblastoma is the most frequent brain tumor in adults aged 45 - 70 years. It accounts for 12% - 15% of all intracranial tumors. It is characterized by its rapid development and poor prognosis. We report the case of a cerebral glioblastoma in a kidney transplant recipient. Clinical case: Mr G.R, 44 years old caucasian patient who underwent kidney transplantation. Immunosuppressive treatment included cyclosporine, mycophenolate mofetil and methylprednisolone. Creatinine levels after transplantation remained stable at 11 mg/L (96.8 μmol/l) with an estimated glomerular filtration rate (eGFR) of 77 ml/min/1.73m2 after a 15 years of follow-up. A grade IV right fronto-callossal cerebral glioblastoma was diagnosed in our patient. EBV PCR was negative. Therefore, he underwent 25 sessions of radiotherapy combined with oral chemotherapy using temozolomide. One month later, the patient died due to cerebral edema with subfalcine herniation. Conclusion: This is a case of cerebral glioblastoma in a kidney transplant recipient, a population considered at risk for tumor development due to immunosuppressive treatment. This emphasizes the need for a lifelong surveillance and, more importantly a better balance between graft function preservation and the risks associated with immunosuppressants.

关键词： Glioblastoma Kidney Transplantation Cancer Immunossupression

Echerichia coli Infection—Associated Glomerulonephritis in a Kidney Transplant Patient: A Case Report

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Open Journal of Nephrology 2024年第1期14卷 81-85页

Post infectious Glomerulonephritis (PIGN) in renal allograft is a rare entity. Only a few Cases have been described in the literature. The post streptococcal glomerulonephritis is the classic example in native kidney. A wide variety of organism has been associated with PIGN in renal allograft such as Staphylococcus, Cytomegalovirus and Polyomavirus. We describe one case of Infection associated glomerulonephritis due to Echericha Coli, developed 5 years after kidney transplantation, in 47 years old female patient. The Clinical presentation was characterized by a peripheral edema and high blood pressure, and biological tests showed a nephrotic syndrome, an acute kidney injury, a consumption of Complement fractions. The renal biopsy revealed a diffuse endocapillary cell proliferation with preponderant deposits of C3. Total recovery was achieved 4 months after Methyprednisolone pulse and Cyclophasphamid with antimicrobial treatment.

关键词： Glomerulonephritis Echerichia coli Kidney Transplant

Extra Renal Rhabdoid Tumor: A Rare Cause of Congenital Soft Tissue Tumor

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Open Journal of Pediatrics 2024年第3期14卷 579-584页

作者： Tazi Charki Mohammed Akammar Amal Dardar Hajar Abdellaoui Hicham Atarraf Karima Boubou meryem Afifi Moulay Abderrahmane Department of Pediatric Orthopedic and Traumatology University Hospital Hassan II Fez Morocco The Faculty of Medicine and Pharmacy Sidi Mohamed Ben Abdellah University Fez Morocco Department of Radiology University Hospital Hassan II Fez Morocco

Rhabdoid tumors (RTs) are a well-defined entity in the kidney or central nervous system of infants or children. However, soft-tissue involvement is uncommon. It’s an exceptional neonatal tumor of soft tissue. The imaging characteristics of this tumor are not specific. Biopsy allows diagnosis;the histomorphological characteristics of rhabdoid tumors, their immunoreactivity to epithelial markers and vimentin, and the INI-1 loss are important tools for diagnosis. RT tumors are aggressive and have a rapidly fatal clinical course in most cases. Despite multidisciplinary therapy, the survival rate is very low. We report a rare case occurring in a male neonate who presents at birth with a voluminous right axillary mass. A CT scan showed a well-limited tumor mass with lobulated contours. An ultrasound-guided biopsy was performed on day 8, showing the morphology and immunoprofile of RT. The mass showed rapid growth. The child was admitted for respiratory distress at 3 weeks. A thoraco-abdominal CT showed an increase in the size of the mass with the appearance of multiple lymph nodes and pleural, hepatic, and renal metastases. The child died two days later.

关键词： Congenital Rhabdoid Tumor Soft Tissue Diagnosis Immunohistochemistry INI-1

Family relationship of nurses in COVID-19 pandemic:A qualitative study

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World Journal of Clinical Cases 2022年第19期10卷 6472-6482页

作者： Melike Yavaş Çelik meryem Kiliç Department of Nursing Yusuf Serefoglu Faculty of Health SciencesKilis 7 Aralık UniversityKilis 79000Turkey Department of Nursing SANKO UniversityGaziantep 27000Turkey

BACKGROUND This research demonstrates that nurses feel pain because the pandemic process has separated them from their family and *** To examine the family relationship situation of nurses in the coronavirus disease 2019(COVID-19)*** The research adopted a descriptive qualitative *** were selected by the snowball *** individual in-depth interview technique was used while the participants were ***-depth interviews were made with a total of 27 *** of these nurses were excluded from the study due to communication problems and device problems during the *** This research showed that nurses suffered from family relationship breakdown and insufficiency in intrafamilial *** nurses stayed away from their families due to overtime and fear of *** cannot meet the needs of their children and spouses for whom they are responsible,and they cannot spare time for *** were living a tiring life with great responsibility and faced with mental problems such as burnout syndrome and *** study was conducted in three cities with a high number of COVID-19 cases in *** investigated three themes:Breakdown in continuity of intrafamilial relationship,ineffectiveness in role performance,and ineffective individual *** The nurses suffer from conditions such as change in parent-infant/child relation and insufficiency in intrafamilial process coping.

关键词： COVID-19 Nurses Family relationship Coping Role performance

Production of the yolk protein precursor vitellogenin is mediated by target of rapamycin (TOR) in the soft tick Ornithodoros moubata (Acari: Argasidae)

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Insect Science 2022年第5期29卷 1299-1308页

作者： meryem Behri Haruki Teshima Keisuke Kutsuwada Shoko Nakatake Mari H.Ogihara DeMar Taylor Graduate School of Life and Environmental Sciences University of TsukubaTsukubaIbarakiJapan Animal Breeding and Reproduction Research Division Institute of Livestock and Grassland ScienceNational Agriculture and Food Research OrganizationTsukubaIbarakiJapan

Initiation of vitellogenesis by blood feeding is essential for egg maturation in *** derived from the blood meal are utilized by female ticks to synthesize the yolk protein precursor vitellogenin(Vg).Engorged Ornithodoros moubata ticks can synthesize Vg whether mated or virgin,thus *** is an excellent model for studying the relative roles of blood feeding and mating in tick *** of rapamycin into engorged *** resulted in a reduction of ovarian growth and yolk accumulation in the oocytes of mated *** expression in the midgut and fat body and protein concentrations in the hemolymph significantly decreased in mated ticks after injection with rapamycin,indicating that inhibition of the nutrient-sensing target of rapamycin(TOR)pathway disrupts egg maturation at the levels of Vg expression and *** results suggest that the TOR-signaling pathway induces vitellogenesis in response to nutritional stimulation after a blood meal in *** and is functionally independent of the mating-induced pathway.

关键词： Ornithodoros moubata target of rapamycin ticks vitellogenesis vitellogenin