233 research outputs found
Sebastopol State Historical Park (41GU9), Seguin, Texas: Archeological Excavations, 1978-1988
The town of Seguin in Guadalupe County, Texas, was known for its numerous limecrete structures. Limecrete structures probably once numbered more than 100; now, the house known as Sebastopol is one of only two still standing. Between 1978 and 1988, archeological excavations were conducted by the Texas Parks and Wildlife Department in and around Sebastopol. The excavations were preparatory to and in conjunction with architectural restoration of the building and development of the site as a State Historical Park. Archeological excavations were intended to evaluate only those areas impacted by the architectural restoration. Excavation units were placed primarily in and around the building, but also around the cistern and in other yard areas. This report, prepared by Prewitt and Associates, Inc., summarizes the excavation seasons and provides analyses of ceramics from across the site as well as diagnostic artifacts from three rooms in the house. Artifacts range in age from the mid nineteenth century up to modem times and came from as far away as Europe and the Far East. Of 106,586 artifacts recovered by the Texas Parks and Wildlife Department, 4,071 artifacts are discussed here
Vegetarian Menu Substitution Practices and Nutrition Professionals' Involvement in the Foodservice Operations of Urban Kansas Childcare Centers
Methods: An online questionnaire was sent to 155 urban Kansas childcare centers participating in the Child and Adult Care Food Program (CACFP). Initial survey distribution occurred on March 7, 2020, and responses were collected through August 2020. Results: Representatives from (N=85) childcare centers answered the survey, resulting in a response rate of 54.8%. When asked how frequently a vegetarian alternative was offered in lieu of the standard meal, 32.9% (n=28) answered â1-2 times/weekâ, 3.5% (n=3) answered âthree times/weekâ, 15.3% (n=13) answered âfour-five times/weekâ, and 41.2% (n=35) indicated they ânever provide a vegetarian alternativeâ. Multiple centers reported routinely serving a vegetarian meal as the main meal center wide. One in four respondents (n=21) was unsure if vegetarian meals could qualify for CACFP reimbursement. When asked to indicate the credentials of the individuals involved in their centersâ menu process and/or foodservice operations, the most frequently cited credentials were the CACFP Child Nutrition Professional (CCNP), the CACFP Management Professional (CMP), and the School Nutrition Specialist (SNS) credentials which accounted for (n=11), (n=7), and (n=5) responses respectively. Over a third of the centers (36.4%, n=31) reported that their menus were written by the owner or an operations team member, and only 5.9% (n=5) reported menus being written by a dietitian/nutritionist. Application To Child Nutrition Professionals: The majority of the centers provided a vegetarian alternative at least once a week. However, the lack of confidence surrounding CACFP reimbursement for vegetarian meals highlights an important knowledge gap. In addition, many of the centersâ menus were written by the owner or an operations team member suggesting an underutilization of the expertise nutrition professionals have to offer
The Nutritional Adequacy and Diet Quality of Vegetarian Menu Substitutions in Urban Kansas Childcare Centers
While plant-based eating has become increasingly popular, little is known of how this trend has impacted childcare center meals. The purpose of this study was to measure the nutrient content and diet quality of vegetarian alternative lunches and compare these measures to those of standard childcare lunches and nutrient benchmarks representing one-third of the Dietary Reference Intake for 3-year-olds and 4â5-year-olds. Menu data were obtained from seven urban Kansas childcare centers participating in the Child and Adult Care Food Program and regularly providing a vegetarian alternative lunch. The centers provided detailed menu information for 27 daysâ worth of meals. The most common vegetarian substitution was cheese, which was used to fulfill all or part of the meat/meat alternative requirement in over three-quarters of the vegetarian alternative meals (n = 22). Compared to the standard meals, the vegetarian alternative meals were higher in calories, fat, saturated fat, calcium, and sodium and lower in protein, choline, and diet quality (p = 0.05). Both lunch options met the benchmarks for vitamin A, vitamin D, vitamin B12, calcium, and protein. Iron content for both (95% CI: standard 1.61â2.17 mg; vegetarian 1.37â2.7 mg) was below the benchmark. Although additional research is needed to better understand how vegetarianism has impacted childcare meals in the U.S., important differences in the nutrient contents were observed between the standard and vegetarian alternative meals. In addition, the results suggest vegetarian alternative meals that rely heavily on cheese may be of lower diet quality
Availability of urinary albumin measurement in Southern Brazilian laboratories
Introduction: Diabetic kidney disease (DKD) is the leading worldwide cause of end-stage renal disease. The current recommendation is to screen for DKD by evaluating estimated glomerular filtration rate (eGFR) and measuring urinary albumin (UA) levels in a spot sample. The aim of this study was to evaluate the availability of UA measurement in Southern Brazilian laboratories. Methods: A cross-sectional study was conducted to assess the routine use of UA in all laboratories registered in the State Pharmacy Council ofRio Grande do Sul, the southernmost state ofBrazil. Data was collected by mail, e-mail, telephone, or personal interview. A sample size of at least 384 laboratories was necessary to achieve 5% precision at a 95% confidence level based on a fixed proportion of 0.5. Results: Eight hundred and eighty laboratories currently registered in the state were invited to participate in the study; 548 (62%) answered the technical specification questionnaire. Only 306 (55%) of the 548 surveyed laboratories performed UA measurements. The laboratories were also required to provide the number of UA measurements performed per day, which ranged from less than one per week to 65 per day. Conclusion: The availability of UA measurements is undesirably low inSouthern Brazil. This demonstrates the urgent need to increase the availability of this important test. It also reveals the gap between the current guidelines and the awareness about them among health care professionals.
Shipping container and the architecture of re-use: proposition of an autonomous sanitary facilitiy W-Eco
Atualmente o Brasil tem se direcionado para os valores sustentĂĄveis nos diversos setores do
mercado, inclusive na construção civil. No Ăąmbito da arquitetura, o reuso de contĂȘineres representa
muito mais do que uma estética diferenciada, ele representa a ressignificação de materiais obsoletos
que contribuem para o acumulo de lixo no planeta. O objetivo desta pesquisa Ă© apresentar uma
proposta arquitetĂŽnica de um modelo de instalaçÔes sanitĂĄrias pĂșblicas autĂŽnomas, tendo como
principal diretriz o reuso de contĂȘineres marĂtimos e a implantação de tecnologias sustentĂĄveis
pertinentes ao uso destinado à edificação. A metodologia consiste em pesquisa bibliogråfica
relacionada ao uso do contĂȘiner e suas caracterĂsticas e conhecimento das tĂ©cnicas e soluçÔes
ambientais eficientes. Como resultado apresenta-se um projeto arquitetĂŽnico que engloba
tecnologias ambientalmente amigåveis, sua transportabilidade e modulação, permitindo conhecer
as possibilidades dessa solução e sua aplicação em eventos e ĂĄreas pĂșblicas.Brazil has been focusing on sustainable values in the various market sectors, including
construction. In architecture, reuse of containers represents much more than a differentiated
aesthetic, it represents the re-signification of obsolete materials that contribute to the accumulation
of garbage on the planet. The objective of this research is to present an architectural proposal of a
model of autonomous public sanitary facilities, having as main guideline the reuse of marine
containers and the implantation of sustainable technologies pertinent to the use destined to the
edification. The methodology consists in bibliographic review related to the use of the container, its
characteristics and knowledge of efficient environmental techniques and solutions. As a result the presented project encompasses environmentally friendly technologies that guarantee user comfort,
its transportability and modulation, allowing knowing the possibilities of this solution and its
application in events and public areas
Plant sterols cause macrothrombocytopenia in a mouse model of sitosterolemia
Mutations in either ABCG5 or ABCG8 cause sitosterolemia, an inborn error of metabolism characterized by high plasma plant sterol concentrations. Recently, macrothrombocytopenia was described in a number of sitosterolemia patients, linking hematological dysfunction to disturbed sterol metabolism. Here, we demonstrate that macrothrombocytopenia is an intrinsic feature of murine sitosterolemia. Abcg5-deficient (Abcg5(-/-)) mice showed a 68% reduction in platelet count, and platelets were enlarged compared with wild-type controls. Macrothrombocytopenia was not due to decreased numbers of megakaryocytes or their progenitors, but defective megakaryocyte development with deterioration of the demarcation membrane system was evident. Lethally irradiated wild-type mice transplanted with bone marrow from Abcg5(-/-) mice displayed normal platelets, whereas Abcg5(-/-) mice transplanted with wild-type bone marrow still showed macrothrombocytopenia. Treatment with the sterol absorption inhibitor ezetimibe rapidly reversed macrothrombocytopenia in Abcg5(-/-) mice concomitant with a strong decrease in plasma plant sterols. Thus, accumulation of plant sterols is responsible for development of macrothrombocytopenia in sitosterolemia, and blocking intestinal plant sterol absorption provides an effective means of treatment
Planar digital nanoliter dispensing system based on thermocapillary actuation
We provide guidelines for the design and operation of a planar digital nanodispensing system based on
thermocapillary actuation. Thin metallic microheaters embedded within a chemically patterned glass
substrate are electronically activated to generate and control 2D surface temperature distributions
which either arrest or trigger liquid flow and droplet formation on demand. This flow control is
a consequence of the variation of a liquidâs surface tension with temperature, which is used to draw
liquid toward cooler regions of the supporting substrate. A liquid sample consisting of several
microliters is placed on a flat rectangular supply cell defined by chemical patterning. Thermocapillary
switches are then activated to extract a slender fluid filament from the cell and to divide the filament into
an array of droplets whose position and volume are digitally controlled. Experimental results for the
power required to extract a filament and to divide it into two or more droplets as a function of
geometric and operating parameters are in excellent agreement with hydrodynamic simulations. The
capability to dispense ultralow volumes onto a 2D substrate extends the functionality of microfluidic
devices based on thermocapillary actuation previously shown effective in routing and mixing nanoliter
liquid samples on glass or silicon substrates
Application of an artificial intelligence-based tool in [18F]FDG PET/CT for the assessment of bone marrow involvement in multiple myeloma
Purpose: [18F]FDG PET/CT is an imaging modality of high performance in multiple myeloma (MM). Nevertheless, the inter-observer reproducibility in PET/CT scan interpretation may be hampered by the different patterns of bone marrow (BM) infiltration in the disease. Although many approaches have been recently developed to address the issue of standardization, none can yet be considered a standard method in the interpretation of PET/CT. We herein aim to validate a novel three-dimensional deep learning-based tool on PET/CT images for automated assessment of the intensity of BM metabolism in MM patients. Materials and methods: Whole-body [18F]FDG PET/CT scans of 35 consecutive, previously untreated MM patients were studied. All patients were investigated in the context of an open-label, multicenter, randomized, active-controlled, phase 3 trial (GMMG-HD7). Qualitative (visual) analysis classified the PET/CT scans into three groups based on the presence and number of focal [18F]FDG-avid lesions as well as the degree of diffuse [18F]FDG uptake in the BM. The proposed automated method for BM metabolism assessment is based on an initial CT-based segmentation of the skeleton, its transfer to the SUV PET images, the subsequent application of different SUV thresholds, and refinement of the resulting regions using postprocessing. In the present analysis, six different SUV thresholds (Approaches 1â6) were applied for the definition of pathological tracer uptake in the skeleton [Approach 1: liver SUVmedian
7 1.1 (axial skeleton), gluteal muscles SUVmedian
7 4 (extremities). Approach 2: liver SUVmedian
7 1.5 (axial skeleton), gluteal muscles SUVmedian
7 4 (extremities). Approach 3: liver SUVmedian
7 2 (axial skeleton), gluteal muscles SUVmedian
7 4 (extremities). Approach 4: â„ 2.5. Approach 5: â„ 2.5 (axial skeleton), â„ 2.0 (extremities). Approach 6: SUVmax liver]. Using the resulting masks, subsequent calculations of the whole-body metabolic tumor volume (MTV) and total lesion glycolysis (TLG) in each patient were performed. A correlation analysis was performed between the automated PET values and the results of the visual PET/CT analysis as well as the histopathological, cytogenetical, and clinical data of the patients. Results: BM segmentation and calculation of MTV and TLG after the application of the deep learning tool were feasible in all patients. A significant positive correlation (p < 0.05) was observed between the results of the visual analysis of the PET/CT scans for the three patient groups and the MTV and TLG values after the employment of all six [18F]FDG uptake thresholds. In addition, there were significant differences between the three patient groups with regard to their MTV and TLG values for all applied thresholds of pathological tracer uptake. Furthermore, we could demonstrate a significant, moderate, positive correlation of BM plasma cell infiltration and plasma levels of ÎČ2-microglobulin with the automated quantitative PET/CT parameters MTV and TLG after utilization of Approaches 1, 2, 4, and 5. Conclusions: The automated, volumetric, whole-body PET/CT assessment of the BM metabolic activity in MM is feasible with the herein applied method and correlates with clinically relevant parameters in the disease. This methodology offers a potentially reliable tool in the direction of optimization and standardization of PET/CT interpretation in MM. Based on the present promising findings, the deep learning-based approach will be further evaluated in future prospective studies with larger patient cohorts
Thermocapillary actuation of liquid flow on chemically patterned surfaces
We have investigated the thermocapillary flow of a Newtonian liquid on hydrophilic microstripes which are lithographically defined on a hydrophobic surface. The speed of the microstreams is studied as a function of the stripe width w, the applied thermal gradient |dT/dx| and the liquid volume V deposited on a connecting reservoir pad. Numerical solutions of the flow speed as a function of downstream position show excellent agreement with experiment. The only adjustable parameter is the inlet film height, which is controlled by the ratio of the reservoir pressure to the shear stress applied to the liquid stream. In the limiting cases where this ratio is either much smaller or much larger than unity, the rivulet speed shows a power law dependency on w, |dT/dx| and V. In this study we demonstrate that thermocapillary driven flow on chemically patterned surfaces can provide an elegant and tunable method for the transport of ultrasmall liquid volumes in emerging microfluidic technologies
Analyzing Longitudinal wb-MRI Data and Clinical Course in a Cohort of Former Smoldering Multiple Myeloma Patients: Connections between MRI Findings and Clinical Progression Patterns
The purpose of this study was to analyze size and growth dynamics of focal lesions (FL) as well as to quantify diffuse infiltration (DI) in untreated smoldering multiple myeloma (SMM) patients and correlate those MRI features with timepoint and cause of progression. We investigated 199 whole-body magnetic resonance imaging (wb-MRI) scans originating from longitudinal imaging of 60 SMM patients and 39 computed tomography (CT) scans for corresponding osteolytic lesions (OL) in 17 patients. All FLs >5 mm were manually segmented to quantify volume and growth dynamics, and DI was scored, rating four compartments separately in T1- and fat-saturated T2-weighted images. The majority of patients with at least two FLs showed substantial spatial heterogeneity in growth dynamics. The volume of the largest FL (p = 0.001, c-index 0.72), the speed of growth of the fastest growing FL (p = 0.003, c-index 0.75), the DI score (DIS, p = 0.014, c-index 0.67), and its dynamic over time (DIS dynamic, p < 0.001, c-index 0.67) all significantly correlated with the time to progression. Size and growth dynamics of FLs correlated significantly with presence/appearance of OL in CT within 2 years after the respective MRI assessment (p = 0.016 and p = 0.022). DIS correlated with decrease of hemoglobin (p < 0.001). In conclusion, size and growth dynamics of FLs correlate with prognosis and local bone destruction. Connections between MRI findings and progression patterns (fast growing FLâOL; DISâhemoglobin decrease) might enable more precise diagnostic and therapeutic approaches for SMM patients in the future
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