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Large Conventional Osteosarcoma of the Proximal Humerus in a 13-Year-Old Child: Case Report

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Open Journal of Pediatrics 2024年第2期14卷 297-304页

作者： Lucienne Irène Patricia Ondima Rhodia Hélène Bosseba Missengue Cardinale Princilia Okiemy Niendet Nuptia Erica Akobande Jean Claude Mieret Caryne Mboutol-Mandavo Redy Atipo Galloye Judith Nsondé Malanda jennifer Mave Sirimé Ngandzo Fabien Mouamba Faculty of Health Sciences Marien Ngouabi University Brazzaville Congo Paediatric Surgery Department Brazzaville University Hospital Centre Brazzaville Congo Department of General Surgery Brazzaville University Hospital Centre Brazzaville Congo Carcinology Department Brazzaville University Hospital Centre Brazzaville Congo Anatomo-Pathology Laboratory Brazzaville University Hospital Centre Brazzaville Congo

Introduction: Osteosarcoma is the most common primary malignant bone tumor in children. It is highly aggressive and has a poor prognosis. A late presentation modifies and makes difficult the management affecting the survival of children. We report the case of a large conventional osteosarcoma in a 13-year-old girl. Case Presentation: Adolescent girl admitted for painful swelling of the left shoulder with absolute functional impotence of the thoracic limb and severe anemia. The painful swelling was thought to have been caused by a minor trauma that had occurred six months previously. The patient’s general condition was poor, and she presented with a large, shiny, painful mass over the shoulder and upper 2/3 of the left arm, measuring 28 cm long by 28 cm wide and 57 cm in circumference, and a large fistulous axillary adenopathy. CT scan showed a tumour lesion of the left humerus with liver and lung metastases, raising suspicion of osteogenic osteosarcoma. The tumor was classified according to TNM staging: T2N1M1(a + b). Management was modified when uncontrolled bleeding developed. It consisted of an extended amputation of the left thoracic limb. Pathological analysis showed a high-grade conventional osteosarcoma. Quality improvement was obtained for thirty days, followed by the onset of dyspnea. The evolution was towards death at forty days post-operatively. Conclusion: Osteosarcoma is a highly aggressive cancer. Delayed treatment leads to a fatal outcome. Early diagnosis is one of the challenges to be met in order to improve survival.

关键词： Osteosarcoma Child Conventional Case Report

Coronavirus Variants-Will New mRNA Vaccines Meet the Challenge?

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Engineering 2021年第6期7卷 712-714页

作者： jennifer Welsh 机构不详

On 24 February 2021,a month after announcing the project,the biotechnology company Moderna(Cambridge,MA,USA)sent samples to the US National Institutes of Health(NIH)of the updated coronavirus disease 2019(COVID-19)vaccine booster it had created and manufactured to address the B.1.351 variant of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),first reported in South Africa[1].The hope is that such quick updates to authorized vaccines will provide—if and as needed—protection against the rapidly spreading new strains of SARS-CoV-2 that have shown troubling signs suggesting immune evasion[2].

关键词： vaccine biotechnology Africa

A surface-based hiding function linking flume and field data

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Science China(Technological Sciences) 2017年第10期60卷 1560-1569页

作者： ZHANG LiGuo FU XuDong DUAN jennifer G State Key Laboratory of Hydroscience and Engineering Tsinghua University Department of Civil Engineering and Engineering Mechanics University of Arizona

The quantification of the sheltering and exposure effects of non-uniform sediments has been widely achieved through hiding function models. Big challenge exists so far in the model parameter that is highly variable and differs greatly between laboratory flumes and field streams. This paper presents an improved surface-based hiding fimction. The force balance for particle inception was formulated and the allocation of the overall bed shear stress into each group of sediments was mimicked. The new hiding function was examined against and agrees well with the documented field and flume data. It was shown that the hiding fimction is closely related to the relative flow depth and the reference elevation in the velocity profile in addition to the bed material gradation. The power law of velocity profile that applies to both flume flows and natural streams can link the flume and field data together. The hiding function with b = 1/6 and b = 1/2 is applicable to natural streams and laboratory flumes, respectively. The value orb = 0.263 also works well for gravel bed rivers. The range of the reference elevation, namely z0 = 0.4Dm-1.4Dm, is recommended for either the flume or field data. The new hiding function contributes to addressing clearer physical meanings and a useful perspective for further improvement.

关键词： hiding function relative flow depth flume and field data reference elevation

Visual rating and the use of image analysis for assessing canopy density in a pecan provenance collection during leaf fall

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林业研究:英文版 2023年第6期34卷 1843-1854页

作者： Cristina Pisani Clive H.Bock jennifer Randall United States Department of Agriculture−Agricultural Research Service (USDA-ARS)Southeastern Fruit and Tree Nut Research Station(SEFTNRS)ByronGA 31008USA Department of Entomology Plant Pathology and Weed ScienceNew Mexico State UniversityLas CrucesNM 88003USA

A collection representing the native range of pecan was planted at the US DA-ARS Southeastern Fruit and Tree Nut Research Station,Byron,*** collection(867 trees)is a valuable genetic resource for characterizing important horticultural *** density during leaf fall is important as the seasonal canopy dynamics provides insights to environmental cues and breeding potential of *** ability of visual raters to estimate canopy density on a subset of the provenance collection(76 trees)as an indicator of leaf shed during autumn along with image analysis values was *** canopy density using the image analysis software was less compared to visual estimates(11.9%vs 18.4%,respectively).At higher canopy densities,the raters overestimated foliage density,but overall agreement between raters and measured values was good(ρc=0.849 to 0.915),and inter-rater reliability was high(R^(2)=0.910 to 0.953).The provenance from Missouri(MOL),the northernmost provenance,had the lowest canopy density in November,and results show that the higher the latitude of the provenance,the lower the canopy *** on regression,the source provenance latitude explained 0.609 of the variation using image analysis,and0.551 to 0.640 when based on the rater estimates of canopy *** assessment of pecan canopy density due to late season leaf fall for comparing pecan genotypes provides accurate and reliable estimates and could be used in future studies of the whole provenance collection.

关键词： Carya illinoinensis Accuracy Reliability Canopy Foliage density Leaf area density Leaf area index

Frailty is independently associated with increased hospitalisation days in patients on the liver transplant waitlist

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World Journal of Gastroenterology 2017年第5期23卷 899-905页

作者： Marie Sinclair Eduard Poltavskiy jennifer L Dodge jennifer C Lai Gastroenterology and Hepatology University of CaliforniaSan FranciscoCa 94143United States

AIMTo investigate the impact of physical frailty on risk of hospitalisation in cirrhotic patients on the liver transplant *** listed for liver transplantation at a single centre underwent frailty assessments using the Fried Frailty Index, consisting of grip strength, gait speed, exhaustion, weight loss, and physical activity. Clinical and biochemical data including MELD score as collected at the time of assessment. The primary outcome was number of hospitalised days per year; secondary outcomes included incidence of infection. Univariable and multivariable analysis was performed using negative binomial regression to associate baseline parameters including frailty with clinical outcomes and estimated incidence rate ratios (IRR).RESULTSOf 587 cirrhotics, 64% were male, median age (interquartile range) was 60 (53-64) years and MELD score was 15 (12-18). Median Fried Frailty Index was 2 (1-3); 31.6% were classified as frail (fried frailty ≥ 3). During 12 mo of follow-up, 43% required at least 1 hospitalisation; 38% of which involved major infection. 107/184 (58%) frail and 142/399 (36%) non-frail patients were hospitalised at least once (P < 0.001). In univariable analysis, Fried Frailty Index was associated with total hospitalisation days per year (IRR = 1.51, 95%CI: 1.28-1.77; P ≤ 0.001), which remained significant on multivariable analysis after adjustment for MELD, albumin, and gender (IRR for frailty of 1.21, 95%CI: 1.02-1.44; P = 0.03). Incidence of infection was not influenced by *** cirrhotics on the liver transplant waitlist, physical frailty is a significant predictor of hospitalisation and total hospitalised days per year, independent of liver disease severity.

关键词： Hospitalisation Infection Cirrhosis Frailty Transplantation

The Status of Acupuncture and Oriental Medicine in the United States

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Chinese Journal of Integrative Medicine 2014年第4期20卷 243-249页

作者： jennifer A.M.Stone Department of Radiation Oncology Indiana University School of Medicine

Since its first mention in U.S. media in the early 1970s, the practiceof acupuncture and Oriental medicine （AOM） has grown in stature from a fringe,counter-culture movement to a valid, evidenced-based treatment option for *** the last 40 years, AOM schools and colleges have been accredited by the *** of Education, offering both masters and doctoral degree programs. Todate, forty-seven states and the District of Columbia license or certify acupuncturistsbased on competency proven through state examination or professional certificationby the National Certification Commission for Acupuncture and Oriental Medicine（NCCAOM）. As acceptance of AOM in the U.S. has increased through both theassurance of psychometrically sound certification and the education of the Americanpublic on this topic, many challenges have emerged. Problems such as theunderemployment of AOM clinicians, methodological hurdles for the investigation of mechanisms, and efficacyof acupuncture and other AOM treatment techniques have been observed. Investigative challenges also includegaps in research training as well as a dearth of the basic resources needed to conduct randomized controlledtrials （RCTs）. As AOM research has sought integration into the Western research model, problems have beenidentified in the design of AOMRCTs, and strategies for their resolution through methods such as translationalresearch have been examined. Incorporating these strategies as well as efficacy, effectiveness, and qualitativemeasures will strengthen the evidence base and thus provide clinical decision makers with more tools that canbe used to design patient treatment regimens.

关键词： acupuncture Oriental medicine status research United States challenges

Immunotherapy for recurrent hepatocellular carcinoma

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World Journal of Gastroenterology 2023年第15期29卷 2261-2271页

作者： Ahan Bhatt jennifer Wu Division of Hematology and Oncology Perlmutter Cancer Center of NYU Langone HealthNYU School of MedicineNew YorkNY 10016United States

Hepatocellular carcinoma(HCC)is presented frequently in late stages that are not amenable for curative *** for patients who can undergo resection for curative treatment of HCC,up to 50%*** patients who were not exposed to systemic therapy prior to recurrence,recurrence frequently cannot be subjected to curative therapy or local *** patients have several options of immunotherapy(IO).This includes programmed cell death protein 1(PD-1)and cytotoxic T-lymphocyte associated protein 4 treatment,combination of PD-1 and vascular endothelial growth factor inhibitor or single agent PD-1 therapy when all other options are deemed *** are also investigational therapies in this area that explore either PD-1 and tyrosine kinase inhibitors or a novel agent in addition to PD-1 with vascular endothelial growth factor *** minireview explored IO options for patients with recurrent HCC who were not exposed to systemic therapy at the initial *** also discussed potential IO options for patients with recurrent HCC who were exposed to first-line therapy with curative intent at diagnosis.

关键词： Liver neoplasms Immune checkpoint blockade Combination drug therapy PD-1-PD-L1 blockade CTLA-4 inhibitor

PyLUR:Efficient software for land use regression modeling the spatial distribution of air pollutants using GDAL/OGR library in Python

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Frontiers of Environmental Science & Engineering 2020年第3期14卷 89-102页

作者： Xuying Ma Ian Longley jennifer Salmond Jay Gao School of Environment Faculty of ScienceUniversity of AucklandAuckland 1010New Zealand National Institute of Water and Atmospheric Research Auckland 1010New Zealand

Land use regression(LUR)models have been widely used in air pollution *** regressionbased approach estimates the ambient pollutant concentrations at un-sampled points of interest by considering the relationship between ambient concentrations and several predictor variables selected from the surrounding *** conceptually quite simple,its successful implementation requires detailed knowledge of the area,expertise in GIS,statistics,and programming skills,which makes this modeling approach relatively inaccessible to novice *** this contribution,we present a LUR modeling and pollution-mapping software named *** uses GDAL/OGR libraries based on the Python platform and can build a LUR model and generate pollutant concentration maps *** self-developed software comprises four modules:a potential predictor variable generation module,a regression modeling module,a model validation module,and a prediction and mapping *** performance of the newly developed PyLUR is compared to an existing LUR modeling software called RLUR(with similar functions implemented on R language platform)in terms of model accuracy,processing efficiency and software *** results show that PyLUR out-performs RLUR for modeling in the Bradford and Auckland case studies ***,PyLUR is much more efficient in data processing and it has a capability to handle detailed GIS input data.

关键词： LUR Air pollution modelling GIS spatial analysis GDAL/OGR Python Pollutant concentration mapping

Multi-criteria group decision making with fuzzy data:an extension of the VIKOR method

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Journal of Systems Engineering and Electronics 2015年第4期26卷 764-773页

作者： Wenqi Jiang jennifer Shang School of Economic and Management Nanjing University of Science and Technology Katz Graduate School of Business University of Pittsburgh

The VIKOR method is a multi-criteria decision making aid, which employs linear normalization to offer compromise solu- tions and has been successfully applied to various group decision making problems. However, the conventional VIKOR techniques used to integrate group judgments and the information loss arising from defuzzification are problematic and distort final outcomes. An improved integration method, which is optimization-based, is proposed. And it can handle fuzzy criteria values and weights. The precondition for accurately defuzzifying triangular fuzzy num- bers is identified. Several effective defuzzification procedures are proposed to improve the extant VIKOR, and a comprehensive evaluation framework is offered to aid multi-criteria group decision making. Finally, a numerical example is provided to illustrate the practicability of the proposed method.

关键词： multi-criteria group decision making triangular fuzzynumbers VlKOR compromise solution.