bluuebunny/crossref_metadata_2025 huggingface dataset:
Peran Strategic Foresight dalam Mempertahankan Sustaibable Capability Organisasi Menuju Inovasi Manajemen
Authors: Pratiwi Putri , Juniadhi Soekendar Antonius
Published: March 2024

This study aims to examine the role of strategic foresight and its ability to support the development of management innovation processes within organizations. This study uses a narrative literature review approach involving potential interactions of three main topics, namely: strategic foresight, management innovation, and management cognition. The results of the study explain that each individual has a character from birth to being able to see the future. Then the capability of foresight in this organization must be developed and continuously maintained by both stakeholders in the organization's management and employees. Before implementing a foiresight strategy, it is necessary to understand in depth managerial cognition as the basis for its application. Furthermore, the development of a well-managed strategic foresight will become a management innovation so as to be able to maintain organizational sustainability. This conceptual paper lays a foundation that can be used as further research in determining strategic foresight capabilities in relation to managerial dynamic capabilities. The results of this paper can be used by organizations that have a long history of facing challenges in capturing the challenges of changing business environments in the future.
PERAN SOSIAL MEDIA MARKETING DALAM MENINGKATKAN MARKETING PERFORMANCE MELALUI PEMANFAATAN DIGITAL MARKETING CAPABILITIES PADA PERUSAHAAN KONSTRUKSI DI PROPINSI JAWA TENGAH
Authors: Tobing Wesly Tumbur ML , Santoso Lukman
Published: March 2024

The aim of this research is to examine the role of social media marketing in creating a significant relationship between digital marketing capabilities and marketing performance in construction companies on the island of Java. The research method was carried out quantitatively by collecting data by distributing questionnaires via electronic forms and printed formats which were delivered directly to respondents where the respondents were directors who worked for contractor companies in Central Java province. The sampling technique was carried out purposively based on the criteria of directors who had worked for a minimum of five years at contractor companies in Central Java province. Based on these criteria, there are 225 company directors who have met these criteria. The data was analyzed using AMOS 22 statistical software. The research results showed that digital marketing capabilities had a positive and significant effect on social media marketing. Digital marketing capabilities do not have a positive and significant effect on marketing performance, and social media marketing has a positive and significant effect on marketing performance.
Opinion: Stratospheric ozone – depletion, recovery and new challenges
Authors: Chipperfield Martyn P. , Bekki Slimane
Published: March 2024

Abstract. We summarise current important and well-established open issues related to the depletion of stratospheric ozone and discuss some newly emerging challenges. The ozone layer is recovering from the effects of halogenated source gases due to the continued success of the Montreal Protocol despite recent renewed production of controlled substances and the impact of uncontrolled very short-lived substances. The increasing atmospheric concentrations of greenhouse gases, such as carbon dioxide, methane (CH4) and nitrous oxide (N2O), have large potential to perturb stratospheric ozone in different ways, but their future evolutions, and hence impacts, are uncertain. Ozone depletion through injection of smoke particles has been observed following recent Australian wildfires. Further perturbations to the ozone layer are currently occurring through the unexpected injection of massive amounts of water vapour from the Hunga Tonga–Hunga Ha'apai volcano in 2022. Open research questions emphasise the critical need to maintain, if not expand, the observational network and to address the impending “satellite data gap” in global, height-resolved observations of stratospheric trace gases and aerosols. We will, in effect, be largely blind to the stratospheric effects of similar wildfire and volcanic events in the near future. Complex Earth system models (ESMs) being developed for climate projections have the stratosphere as an important component. However, the huge computational requirement of these models must not result in an oversimplification of the many processes affecting the ozone layer. Regardless, a hierarchy of simpler process models will continue to be important for testing our evolving understanding of the ozone layer and for providing policy-relevant information.
A global dataset of the shape of drainage systems
Authors: He Chuanqi , Yang Ci-Jian , Turowski Jens M. , Ott Richard F. , Braun Jean , Tang Hui , Ghantous Shadi , Yuan Xiaoping , Stucky de Quay Gaia
Published: March 2024

Abstract. Drainage basins delineate Earth's land surface into individual water collection units. Basin shape and river sinuosity determine water and sediment dynamics, affecting landscape evolution and connectivity between ecosystems and freshwater species. However, a high-resolution global dataset for the boundaries and geometry of basins is still missing. Using a 90 m resolution digital elevation model, we measured the areas, lengths, widths, aspect ratios, slopes, and elevations of basins over 50 km2 globally. Additionally, we calculated the lengths and sinuosities of the longest river channels within these 0.67 million basins. We built a new global dataset, Basin90m, to present the basins and rivers, as well as their morphological metrics. To highlight the use cases of Basin90m, we explored the correlations among morphological metrics, such as Hack's law. By comparing with HydroSHEDS, HydroATLAS, and Google Earth images, we demonstrated the high accuracy of Basin90m. Basin90m, available in shapefile format, can be used on various GIS platforms, including QGIS, ArcGIS, and GeoPandas. Basin90m has substantial application prospects in geomorphology, hydrology, and ecology. Basin90m is available at https://doi.org/10.5880/GFZ.4.6.2023.004 (He et al., 2023).
Optimising urban measurement networks for CO2 flux estimation: a high-resolution observing system simulation experiment using GRAMM/GRAL
Authors: Vardag Sanam Noreen , Maiwald Robert
Published: March 2024

Abstract. To design a monitoring network for estimating CO2 fluxes in an urban area, a high-resolution observing system simulation experiment (OSSE) is performed using the transport model Graz Mesoscale Model (GRAMMv19.1) coupled to the Graz Lagrangian Model (GRALv19.1). First, a high-resolution anthropogenic emission inventory which is considered as the truth serves as input to the model to simulate CO2 concentration in the urban atmosphere on 10 m horizontal resolution in a 12.3 km × 12.3 km domain centred in Heidelberg, Germany. By sampling the CO2 concentration at selected stations and feeding the measurements into a Bayesian inverse framework, CO2 fluxes on a neighbourhood scale are estimated. Different configurations of possible measurement networks are tested to assess the precision of posterior CO2 fluxes. We determine the trade-off between the quality and quantity of sensors by comparing the information content for different set-ups. Decisions on investing in a larger number or in more precise sensors can be based on this result. We further analyse optimal sensor locations for flux estimation using a Monte Carlo approach. We examine the benefit of additionally measuring carbon monoxide (CO). We find that including CO as tracer in the inversion enables the disaggregation of different emission sectors. Finally, we quantify the benefit of introducing a temporal correlation into the prior emissions. The results of this study have implications for an optimal measurement network design for a city like Heidelberg. The study showcases the general usefulness of the inverse framework developed using GRAMM/GRAL for planning and evaluating measurement networks in an urban area.
Sensitivity of the WRF-Chem v4.4 simulations of ozone and formaldehyde and their precursors to multiple bottom-up emission inventories over East Asia during the KORUS-AQ 2016 field campaign
Authors: Kim Kyoung-Min , Kim Si-Wan , Seo Seunghwan , Blake Donald R. , Cho Seogju , Crawford James H. , Emmons Louisa K. , Fried Alan , Herman Jay R. , Hong Jinkyu , Jung Jinsang , Pfister Gabriele G. , Weinheimer Andrew J. , Woo Jung-Hun , Zhang Qiang
Published: March 2024

Abstract. In this study, the WRF-Chem v4.4 model was utilized to evaluate the sensitivity of O3 simulations with three bottom-up emission inventories (EDGAR-HTAP v2 and v3 and KORUS v5) using surface and aircraft data in East Asia during the Korea-United States Air Quality (KORUS-AQ) campaign period in 2016. All emission inventories were found to reproduce the diurnal variations of O3 and its main precursor NO2 as compared to the surface monitor data. However, the spatial distributions of the daily maximum 8 h average (MDA8) O3 in the model do not completely align with the observations. The model MDA8 O3 had a negative (positive) bias north (south) of 30° N over China. All simulations underestimated the observed CO by 50 %–60 % over China and South Korea. In the Seoul Metropolitan Area (SMA), EDGAR-HTAP v2 and v3 and KORUS v5 simulated the vertical shapes and diurnal patterns of O3 and other precursors effectively, but the model underestimated the observed O3, CO, and HCHO concentrations. Notably, the model aromatic volatile organic compounds (VOCs) were significantly underestimated with the three bottom-up emission inventories, although the KORUS v5 shows improvements. The model isoprene estimations had a positive bias relative to the observations, suggesting that the Model of Emissions of Gases and Aerosols from Nature (MEGAN) version 2.04 overestimated isoprene emissions. Additional model simulations were conducted by doubling CO and VOC emissions over China and South Korea to investigate the causes of the model O3 biases and the effects of the long-range transport on the O3 over South Korea. The doubled CO and VOC emission simulations improved the model O3 simulations for the local-emission-dominant case but led to the model O3 overestimations for the transport-dominant case, which emphasizes the need for accurate representations of the local VOC emissions over South Korea.
Synthesis of historical reservoir operations from 1980 to 2020 for the evaluation of reservoir representation in large-scale hydrologic models
Authors: Steyaert Jennie C. , Condon Laura E.
Published: March 2024

Abstract. All the major river systems in the contiguous United States (CONUS) (and many in the world) are impacted by dams, yet reservoir operations remain difficult to quantify and model due to a lack of data. Reservoir operation data are often inaccessible or distributed across many local operating agencies, making the acquisition and processing of data records quite time-consuming. As a result, large-scale models often rely on simple parameterizations for assumed reservoir operations and have a very limited ability to evaluate how well these approaches match actual historical operations. Here, we use the first national dataset of historical reservoir operations in the CONUS domain, ResOpsUS, to analyze reservoir storage trends and operations in more than 600 major reservoirs across the US. Our results show clear regional differences in reservoir operations. In the eastern US, which is dominated by flood control storage, we see storage peaks in the winter months with sharper decreases in the operational range (i.e., the difference between monthly maximum and minimum storage) in the summer. In the more arid western US where storage is predominantly for irrigation, we find that storage peaks during the spring and summer with increases in the operational range during the summer months. The Lower Colorado region is an outlier because its seasonal storage dynamics more closely mirrored those of flood control basins, yet the region is classified as arid, and most reservoirs have irrigation uses. Consistent with previous studies, we show that average annual reservoir storage has decreased over the past 40 years, although our analyses show a much smaller decrease than previous work. The reservoir operation characterizations presented here can be used directly for development or evaluation of reservoir operations and their derived parameters in large-scale models. We also evaluate how well historical operations match common assumptions that are often applied in large-scale reservoir parameterizations. For example, we find that 100 dams have maximum storage values greater than the reported reservoir capacity from the Global Reservoirs and Dams database (GRanD). Finally, we show that operational ranges have been increasing over time in more arid regions and decreasing in more humid regions, pointing to the need for operating policies which are not solely based on static values.
A New Method for Calculating Highway Blocking due to High Impact Weather Conditions
Authors: Liu Duanyang , Jing Tian , Yan Mingyue , Gultepe Ismail , Bao Yunxuan , Wang Hongbin , Zu Fan
Published: March 2024

Abstract. Fog, rain, snow, and icing are considered to be the high-impact weather events often lead to the highway blockings, which in turn causes serious economic and human losses. At present, there is no clear calculation method for the severity of highway blocking which is related to highway load degree and economic losses. Therefore, the goal of this work is to develop a method to be used to assess the high impact weather effects on the highway blocking. Based on the K-means cluster analysis and the CRITIC (Criteria Importance through Intercriteria Correlation) weight assignment method, we analyze the highway blocking events occurred in Chinese provinces in 2020. Through cluster analysis, a new method of severity levels of highway blocking is developed to distinguish the severity into five levels. The severity levels of highway blocking due to high-impact weather are evaluated for all weather types. As a part of calculating the degree of highway blocking, a new method is proposed for China, and the highway load in each province is evaluated. The economic losses resulting from highway-blocking events caused by dense fog are specifically assessed. Results suggested that the highway losses caused by dense fog was the main contributor for highway blocking conditions and occur at about 43 %.
Mapping current and future flood exposure using a 5 m flood model and climate change projections
Authors: Darlington Connor , Raikes Jonathan , Henstra Daniel , Thistlethwaite Jason , Raven Emma K.
Published: March 2024

Abstract. Local stakeholders need information about areas exposed to potential flooding to manage increasing disaster risk. Moderate- and large-scale flood hazard mapping is often produced at a low spatial resolution, typically using only one source of flooding (e.g., riverine), and it often fails to include climate change. This article assesses flood hazard exposure in the city of Vancouver, Canada, using flood mapping produced by flood risk science experts JBA Risk Management, which represented baseline exposure at 5 m spatial resolution and incorporated climate-change-adjusted values based on different greenhouse gas emission scenarios. The article identifies areas of both current and future flood exposure in the built environment, differentiating between sources of flooding (fluvial, pluvial, storm surge) and climate change scenarios. The case study demonstrates the utility of a flood model with a moderate resolution for informing planning, policy development, and public education. Without recent engineered or regulatory mapping available in all areas across Canada, this model provides a mechanism for identifying possible present and future flood risk at a higher resolution than is available at a Canada-wide coverage.
Multi-objective calibration of vertical-axis wind turbine controllers: balancing aero-servo-elastic performance and noise
Authors: Brandetti Livia , Mulders Sebastiaan Paul , Merino-Martinez Roberto , Watson Simon , van Wingerden Jan-Willem
Published: March 2024

Abstract. Vertical-axis wind turbines (VAWTs) are considered promising solutions for urban wind energy generation due to their design, low maintenance costs, and reduced noise and visual impact compared to horizontal-axis wind turbines (HAWTs). However, deploying these turbines close to densely populated urban areas often triggers considerable local opposition to wind energy projects. Among the primary concerns raised by communities is the issue of noise emissions. Noise annoyance should be considered in the design and decision-making process to foster the social acceptance of VAWTs in urban environments. At the same time, maximising the operational efficiency of VAWTs in terms of power generation and actuation effort is equally important. This paper balances noise and aero-servo-elastic performance by formulating and solving a multi-objective optimisation problem from a controller calibration perspective. Psychoacoustic annoyance is taken as a novel indicator for the noise objective by providing a more reliable estimate of the human perception of wind turbine noise than conventional sound metrics. The computation of the psychoacoustic annoyance metric is made feasible by integrating it with an accurate and computationally efficient low-fidelity noise prediction model. For optimisation, an advanced partial-load control scheme – often used in industrial turbines – is considered, with the Kω2 controller as a baseline for comparison. Optimal solutions balancing the defined objectives are identified using a multi-criteria decision-making method (MCDM) and are subsequently assessed using a frequency-domain controller analysis framework and mid-fidelity time-domain aero-servo-elastic simulations. The MCDM results indicate the potential application of this controller in small-scale urban VAWTs to attain power gains of up to 39 % on one side and to trade off a reduction in actuation effort of up to 25 % at the cost of only a 2 % power decrease and a 6 % increase in psychoacoustic annoyance on the other side compared to the baseline. These findings confirm the flexible structure of the optimally calibrated wind speed estimator and tip-speed ratio (WSE–TSR) tracking controller, effectively balancing aero-servo-elastic performance with noise emissions and marking the first instance of integrating residential concerns into the decision-making process.
Beauty, Ugliness, and Black Theology
Authors: Moore Jeania Ree V.
Published: March 2024

In this paper, I argue that theological aesthetics speaks powerfully to black experience in light of this very situation. It does so, I find, through the Beauty of the Cross. While the Beauty of the Cross constitutes its own tradition developed through art, architecture, liturgics, and devotion, I use it to gesture broadly to the cruciform character of beauty in theology. The Beauty of the Cross shows how a theological account of beauty necessarily encompasses ugliness. I draw out the implications of this dynamic with regard to three doctrinal areas and related debates in black theology: theological anthropology, soteriology, and eschatology. I aim to show the utility of theological aesthetics for black experience, and center it as a vital resource for black theology.
Hubungan Persepsi Pasien Terkait Kualitas Pelayanan Dengan Minat Kunjungan Ulang di Rawat Jalan RSUP Persahabatan Tahun 2023
Authors: Alvia Amri Zahrani , Indrawati Lili , Sulistyowati Yeny , Susanti Rini
Published: March 2024

Latar belakang. Layanan kesehatan yang diberikan pada pasien di rumah sakit mulai saat penerimaan sampai dengan selesai layanan dapat menimbulkan suatu persepsi pasien. Pasien secara sadar dan tidak sadar dalam tahap purna beli (setelah mendapatkan pelayanan kesehatan) akan mengevaluasi mutu pelayanan yang telah didapatkan dari rumah sakit. Persepsi tentang mutu yang buruk akan mempengaruhi keputusan dalam kunjungan berikutnya dan pasien biasanya mencari tempat pelayanan kesehatan yang lain.Tujuan. Penelitian ini bertujuan mengetahui hubungan persepsi pasien terkait tujuh dimensi mutu pelayanan (keamanan pelayanan, patient centeredness, efektivitas pelayanan, efisiensi pelayanan, aksesibilitas pelayanan, ketepatan waktu pelayanan, dan ekuitas pelayanan) dengan minat kunjungan ulang pasien rawat jalan di RSUP Persahabatan tahun 2023 serta dimensi yang paling berhubungann dengan minat kunjungan ulang.Metode. Penelitian dilakukan di RSUP Persahabatan, disain penelitian cross sectional. Jumlah sampel 66 pasien baru di rawat jalan yang dikirimi kuesioner terkait tujuh dimensi mutu pelayanan. Jawaban pertanyaan dalam skala Likert 1-4, dilakukan perhitungan dengan cut off mean menjadi dua kategori jawaban, kemudian dilakukan uji statistik univariat, bivariat chi square untuk melihat hubungan masing-masing dimensi mutu pelayanan dengan minat kunjungan ulang, kemudian dilakukan uji statistik multivariat regresi logistik berganda untuk mendapatkan dimensi yang paling berhubungan dengan minat kunjungan ulang.Hasil. 66 Responden terdiri dari 23 lelaki dan 43 perempuan, usia terbanyak 26 tahun sd 35 tahun, pendidikan terbanyak SLTA/sederajat 33, status terbanyak adalah menikah 47, pekerjaan terbanyak adalah sebagai karyawan swasta 27. Hubungan masing-masing dimensi mutu pelayanan dengan minat kunjungan ulang didapat hasil terdapat hubungan dengan p < 0.05. Dimensi yang paling berhubungan dengan minat kunjungan ulang dengan CI 95% adalah: aksesibilitas pelayanan (R2 61,7%) dan patient centredness (R2 60,2%).Kesimpulan. Terdapat hubungan bermakna antara persepsi pasien terkait mutu pelayanan di rawat jalan dengan minat kunjungan ulang. Dimensi yang paling berhubungan dengan minat kunjungan ulang adalah aksesibilitas pelayanan .

Kata kunci: Persepi pasien, Tujuh dimensi kualitas pelayanan, Minat Kunjungan Ulang
Hybrid Solar Thermal Energy System for District Heating Application
Authors: Akar Sertac , Kurup Parthiv , Boyd Matthew , McMillan Colin
Published: March 2024

Solar district heating (SDH) systems can be good alternatives to conventional systems when they are optimized with hybrid configurations and thermal energy storage (TES). In this scope, a hybrid renewable thermal energy system (RTES) model has been built combining flat plate collector (FPC) solar system with parabolic trough collector (PTC) system via a heat exchanger and coupled with TES. To undertake the hybridization of the system, System Advisor Model (SAM) software was modified, which allowed control over configurations and more accurate modelling of heat transfer between the collectors. The model is first compared to an existing hybrid solar district heating systems (DHS) system in Taars, Denmark. The results showed a good correlation with an overestimation of only 6.4% compared to most recent heat output. Then the same system configuration was modeled in different geographic locations to investigate the impact of changes in direct normal irradiance (DNI) to the heat sink thermal output of the hybrid system. The results showed that the annual net thermal power output in California, USA can be three times more than the annual net thermal power output in Taars, Denmark. Finally, multiple hybrid configurations with varying solar field sizes were simulated based on the heat demand of two different university campuses DHS. The results showed that, retrofit applications of this hybrid DHS system coupled with TES could reduce the natural gas consumption of the existing systems between 25% and 41%. The use of hybrid RTES highlighted in this paper can be extended to many more opportunities.
Cyclic Thermal and Structural Testing of a Hot Particle Storage Bin
Authors: Sment Jeremy , Plewe Kaden , Schroeder Nathan , Lambert Matthew , Chen Dongmei , Ho Clifford
Published: March 2024

Thermal energy storage is a key element in concentrating solar energy systems. In 2017 a Roadmap toward a third-generation system that could meet the SunSHOT goals of 0.06 $/kWe recommended increasing temperatures to > 700° C for heat transfer media to in-crease thermal efficiencies and lower levelized costs of heat. In 2021, the U.S. Department of Energy selected the particle pathway, G3P3, to build a 1 MWt prototype solar tower with 6 MWh thermal energy storage at the NSTTF in Albuquerque, NM. Of the primary components, the falling particle receiver, and particle-to-sCO2 heat exchanger have been demonstrated at the 250 kWt capacity. The storage component is now being demonstrated as part of the G3P3-USA and G3P3-KSA pilot plants. Storage bin liner materials have been demonstrated by KSU in 2016 and 2019. A flowing particle storage container was demonstrated in 2020 by KSU. The testing presented in this work will be the first to test the particle to wall interactions with mono-lithic refractory insulation, and to validate a transient thermal transport model with the unique kinetics of bulk solids in funnel-flow where cooler particles near the walls flow inward toward a hot central flow channel. This work will also de-risk and characterize the specific design of the G3P3-USA storage bin.
Minimum collisions assignment in interdependent networked systems via defective colorings
Authors: Diamanti Maria , Fryganiotis Nikolaos , Papavassiliou Symeon , Pelekis Christos , Tsiropoulou Eirini Eleni
Published: March 2024

In conjunction with the traffic overload of next-generation wireless communication and computer networks, their resource-constrained nature calls for effective methods to deal with the fundamental resource allocation problem. In this context, the Minimum Collisions Assignment (MCA) problem in an interdependent networked system refers to the assignment of a finite set of resources over the nodes of the network, such that the number of collisions, i.e., the number of interdependent nodes receiving the same resource, is minimized. Given the interdependent networked system's organization in the form of a graph, there already exists a randomized algorithm that converges with high probability to an assignment of resources having zero collisions when the number of resources is larger than the maximum degree of the underlying graph. In this article, differing from the prevailing literature, we investigate the case of a resource-constrained networked system, where the number of resources is less than or equal to the maximum degree of the underlying graph. We introduce two distributed, randomized algorithms that converge in a logarithmic number of rounds to an assignment of resources over the network for which every node has at most a certain number of collisions. The proposed algorithms apply to settings where the available resources at each node are equal to three and two, respectively, while they are executed in a fully-distributed manner without requiring information exchange between the networked nodes.
The use of ecological momentary assessment for family caregivers of adults with chronic conditions: A systematic review
Authors: Han Areum , Malone Laurie A. , Lee Hee Yun , Gong Jiaqi , Henry Ryan , Zhu Xishi , Yuen Hon K.
Published: March 2024

Background

Ecological momentary assessment (EMA) as a real-time data collection method can provide insight into the daily experiences of family caregivers.

Purpose

This systematic review aimed to synthesize studies involving EMA completed by family caregivers of adults with chronic conditions.

Methods

A systematic search was conducted within six databases for articles published from the inception of the database through September 2023. We extracted the characteristics of the included studies and data on EMA-specific methods to determine the quality of the included studies.

Results

A total of 12 studies involving EMA completed by family caregivers of adults with chronic conditions were identified, with almost all studies focused on caregivers of persons with Alzheimer’s or dementia-related conditions. The average compliance rate across the included studies was 75%, below the recommended rate. In addition, most of the included studies did not collect the family caregivers’ daily activities and care contexts in their responses (i.e., affect, stress, well-being, care demand, and fatigue) to the EMA prompts.

Discussion

This review showed that using EMA to collect information on family caregivers of adults with chronic health conditions appeared feasible and acceptable. However, the methodology or design of using EMA to collect caregiver information in this population is still preliminary. The limited number of existing studies that have used EMA to capture the daily experiences of family caregivers does not provide key information that could improve understanding of caregivers’ emotional experiences and well-being in real-life situations. We identified gaps in the literature that warrant additional EMA studies for this population.
Robotic arm-assisted total knee arthroplasty in a patient with osteopetrosis: a case report and review of literature
Authors: Kim Sung Eun , Han Hyuk-Soo
Published: March 2024

Osteopetrosis, a rare condition arising from osteoclast dysfunction, is characterised by increased bony density and obliteration of the intramedullary canal. While total knee arthroplasty (TKA) is preferred for osteoarthritic patients with osteopetrosis, inherent disease characteristics pose surgical challenges. This article presents a patient with osteopetrosis treated with robotic arm-assisted TKA (RA-TKA). This approach provided precise bone resection, obviates the need for intramedullary guides, minimizes saw disposal, and reduces surgical duration, with satisfactory short-term outcomes. RA-TKA may be an effective treatment for osteoarthritis in patients with osteopetrosis.
Incidência dos helmintos causadores da ancilostomíase humana em Santa Maria, Rio Grande do Sul, Brasil
Authors: Azevedo Astrogildo , Silveira Léo , Weinmann Sérgio
Published: March 2024

Pelo estudo morfológico das larvas filarióides obtidas por cultura, foi verificado, em Santa Maria, que a ancilostomíase é causada em 94% dos casos por Necaior, 2% por Ancylostoma e, em 4%, por ambos os gêneros.
Cromoblastomicose em pacientes com Hanseníase
Authors: Campos Evandro Pimenta de , Guerra José Marcelo de Motta , Azevedo Miécio Martiniano de , Ashcar Hassib , Massignani Adriana Manginelli , Cave Januário Delle
Published: March 2024

Um paciente procedente da Amazônia, Brasil, seringueiro, portador de uma forma branqueada de hanseníase, tratado com sulfonas, tendo como seqüelas lesões distróficas das extremidades e manchas hípocrômícas, com perturbações da sensibilidade, apresentou no hipocôndrio esquerdo uma lesão verrucosa extensa, com 'evolução de mais de 10 anos, rebelde aos tratamentos feitos. Foram feitas biópsias para esclarecimento histopatológico da doença, tendo-se concluído tratar-se de der-matite verrucosa cromomícótíca, com presença dos fungos bem caracterizados pelas colorações de rotina, e histoquímicas. A cultura do material obtido da lesão em meio ágar-Sabouraud deu crescimento a colônia gigante com as características típicas do gênero Phialophora: hifas septadas e conidióforos com morfologia de taça. O tratamento, na falta de 5-fluorocitosina, foi feito com infiltrações de anfotericina B, associada a ioclureto de sódio, endovenosamente, estando a lesão em plena regressão. Os exames histopatológicos das lesões díscrômícas mostraram apenas infiltrado linfoplasmocitário e ausência de bacílos álcoolácido resistentes íntegros.
Estudo comparativo da sensibilidade da Neisseriameningitidis, sorogrupos A e C, à sulfadiazina, mediante emprego de discos e de concentrações variadas de sulfadiazina em meio sólido
Authors: Lee Ilka Maria Landgraf , Raskin Mathilde , Esper Maria Regina N. Ramires , Melles Carmo Elias Andrade , Sakata Elena Emiko , Taunay Augusto E. , Pessôa Gil Vital Álvares
Published: March 2024

No boletim nº 588 da OMS, série de Comunicações Técnicas sobre "A luta contra a meningite cérebro-espinhal", 1976, é aconselhada a pesquisa contínua da sensibilidade da Neiseeria meningitidis aos sulfamídicos e recomendada também a exposição da cepa a concentrações crescentes de sulfadiazina incorporada ao meio ágar-Mueller-Hinton, nas quantidades de 0,1; 1,0; 5,0 e 10 mg%. Neste trabalho foi empregada a técnica descrita por H. A. Feldman (1967), que utiliza as concentrações especificadas pela" OMS. Foram testadas 200 cepas de Neieeeriá meningitidis,sendo 100 do sorogrupo A e 100 do sorogrupo C, sendo verificada, simultaneamente, a sensibilidade das cepas à sulfadiazina em discos procedentes dos Laboratórios Difco, U.S.A., impregnados com 0,3 mg% do quimioterápico, segundo o método de Bauer, Kirby et alii.
Importância da pesquisa da Beta-galactosidase na caracterização laboratorial da Neisserialactamica
Authors: Lee Ilka Maria Landgraf , Pessôa Gil Vital Álvares , Esper Maria Regina Novaes Ramires , Melles Carmo Elias Andrade , Simonsen Vera
Published: March 2024

Na pesquisa de portadores de Neisseria meningitidis, a distinção da Neisseria lactamica é da maior importância, pois esta apresenta um perfil antigênico semelhante ao da Neisseria meningitidis o que ocasiona reações cruzadas freqüentes. Em pesquisa realizada em 1.983 voluntários, foram encontradas 431 amostras de Neisséria que se comportaram sorologicamente como Neiseeria meningitidis. Estas cepas foram estudadas em relação ao ataque à lactose (1% em meio C.T.A., Difeo) e quanto à hidrólise do O.N.P.G. (ortho-nitrophenyl-j3-D-galactopyranoside) pela ação da Beta-galactosidase. Das 431 amostras, 70 foram O.N.P.G. positivas e destas apenas 42 atacaram a lactose, após 48 horas (tempo máximo de observação foi de 15 dias). O ataque da lactose revelou o encontro da Neisseria lactamica em apenas 60% das oportunidades e, assim mesmo, após observação por 48 horas na grande maioria dos casos. Em vista destes achados, os autores recomendam a introdução do teste da Beta-galactosidase na rotina da pesquisa de Neisseria. meningitidis pois, além de ser um método simples e rápido, evita erros diagnósticos decorrentes de reações antigênicas cruzadas. Este fato assume maior relevância, pois esta bactéria já foi responsabilizada por um caso de meningite purulenta.
Comparação entre a cultura de material obtido por aspiração transtraqueal e por expectoração para a determinação da flora bacteriana no trato respiratório baixo
Authors: Gimenez Maria Elizabeth , Pereira Luiz Carlos , Gelli Dilma Scala , Pessôa Gil Vital Alvares , Papaleo Manoel Novais
Published: March 2024

Procedeu-se à cultura quantitativa do material obtido por aspiração transtraqueal e do obtido por expectoração espontânea de 27 pacientes hospitalizados, afetados por infecções raqueobrônquicas e pulmonares, agudas ou crônicas. Nenhum dos pacientes havia recebido tratamento antimicrobiano prévio. Os resultados revelam que a cultura do escarro tem valor diagnóstico nos isolados das diluições maiores ou iguais a 10", equiparando-se aos isolamentos do material aspirado. A cultura quantitativa é de utilidade no estabelecimento da etiologia, patogenia e terapêutica para recuperação do paciente.
Sorotipos de Salmonella isolados em Ribeirão Preto, SP, durante o qüinqüênio 1972-1976
Authors: Kaku Mituca , Ito Izabel Yoko , Baracchini Octávio , Pessôa Gil Vital Alvares , Carloni João
Published: March 2024

Durante os anos de 1972 a 1976, foram realizadas no Laboratório I do Instituto Adolfo Lutz, em Ribeirão Preto, 5.169 coproculturas para o isolamento de enterobactérias pertencentes ao gênero Salmonella com material obtido de 1.457 crianças hospitalizadas com idade inferior a 10 anos e de 2.831 pacientes de ambulatório com idade acima de 10 anos. Foram isoladas bactérias pertencentes ao gênero Salmonella de 361 pacientes, sendo 291 (19,97%) de pacientes hospitalizados e 70 (2,47%) de pacientes de ambulatório. O sorotipo prevalente foi sempre S. typhimurium. Um achado importante apresentado neste trabalho foi o númerode sorotipos diferentes encontrados, em número de 16, fato que ainda não havia sido evidenciado em trabalhos de outros autores, realizados na mesma região.
Reações imunológicas para a detecção do antígeno de superfície da hepatiteB (HBsAg)
Authors: Kimura Regina Tomie , Tachibana Clara Fumico , Cury Vera Lúcia , Takeda Augusta Kiyomi
Published: March 2024

399 soros suspeitos de hepatite virótica e 105 soros antígeno HBs positivos provenientes de banco de sangue de São Paulo, SP, foram utilizados para comparar as técnicas de imunoeletroforese cruzada (IEC) e radioimunoensaio (RIE) com hernaglutinação passiva reversa (HAPR). A concordância entre RIE e HAPR foi de 81% e, entre a HAPR e IEC, foi de 58%. As hemácias preparadas em nossos laboratórios para o teste de HAPR não apresentaram diferenças significativas quando comparadas com as hemácias padrão e, guardadas até 6 meses a 4°C, não apresentaram alterações em sua sensibilidade. A reação de HAPR foi preferida pela sua sensibilidade e facilidade de execução.
Ocorrência de bactérias enteropatogênicas em São Paulo no septênio 1970-76. IV - Infecções entéricas múltiplas
Authors: Pessôa Gil Vital Alvares , Irino Kinue , Melles Carmo Elias Andrade , Calzada Chifumi Takeuchi , Kano Elena , Simonsen Vera
Published: March 2024

Neste trabalho é relatada a freqüência de infecções múltiplas por membros da família Enterobacteriaceae no septênio 1970-76. Neste período foram encontradas 1.054 infecções duplas, 45 triplas e 2 quádruplas, correspondendo a 14,86% do total de 7.409 exames positivos. Os autores salientam a predominância de dois sorotipos nas infecções duplas, Salmonella typhimurium e Escherichia coli 0111: B4, a alta prevalência das infecções múltiplas no grupo etário de O a 5 meses (66,85%) e o aumento da incidência no inverno. Chamam a atenção ainda para o fato de ser este material originário, em sua quase totalidade, de hospitais infantis.
Flutuação mensal na densidade de populações malacológicas em criadouros natural do município de Londrina, Estado do Paraná, Brasil
Authors: Chieffi Pedro Paulo , Moretti Itagiba G.
Published: March 2024

Durante o período de um ano, estudou-se a flutuação mensal na densidade de populações de planorbídeos (Biomphalaria tenaçophila e B. glabrata) e de outros moluscos (Pomlzcea sp. e Phisa sp.), em criadouro natural localizado no município de Londrina. Os resultados revelaram tendência semelhante na flutuação da densidade populacional de B, tenagophila e Pomacea sp., que foram as espécies predominantes. As populações malacológicas apresentaram-se mais abundantes nos períodos compreendidos pelos meses de janeiro a março e de outubro a dezembro, ocasião em que se verificaram elevadas temperaturas ambientes e médias pluviométricas. Os dados obtidos sugerem ausência de relação competitiva entre as populações de B. tenagophila e Pomacea sp., nas condições prevalentes neste estudo.
Ancylostoma duodenale e Necator americanus: diagnóstico diferencial das larvas infestantes e prevalência em amostras fecais provenientes da Grande São Paulo
Authors: Corrêa Lúcia de Lacerda , Silva Maria Ivani P. Gonçalves da , Silva Rita Maria da , Dias Rosa Maria Donini Souza
Published: March 2024

A falta de quaisquer dados sobre a prevalência do Ancylostoma duodenale e do Necator americanus entre habitantes da Grande São Paulo foi que motivou a pesquisa que abrangeu 300 amostras fecais. Foi utilizado o método de cultura de larvas de Harada e Mori (1951) e o reconhecimento da espécie foi efetuado através do estudo das larvas filarióides do terceiro estágio, utilizandc o critério diagnóstico estabelecido por G. Matsusaki. Para rigoroso aferimento dos parâmetros diagnósticos utilizados, foram recuperados, após medicação adequada, exemplares adultos de Anculoetoma duodenale e de Necator americanus de alguns dos pacientes estudados. Dentre as 300 amostras fecais cultivadas, 60,30/0 continha larvas de Neeator americanus, 14,70/0 mostrava larvas de l1ncylostoma duodenale e 25,00/0 correspondia a portadores de dupla infestação.
Importância das plantas ornamentais dos aquários como veículos de propagação de vetores de Schistosoma mansoni
Authors: Corrêa Lúcia de Lacerda , Corrêa Marcelo Osvaldo Álvares , Vaz Jorge Faria , Silva Maria Ivani P. Gonçalves da , Silva Rita Maria da , Yamanaka Maria Terumi
Published: March 2024

Em 1970, CORRÊA et alii comprovaram a introdução de Biomphalaria straminea em São Paulo, através de peixes provenientes do Amazonas e Ceará, que foram colocados em tanques de criação em Barra Bonita e Americana em São Paulo. Este fato e a introdução, na Austrália, de vetores de Schistosoma mansoni através da importação de aquários de Hong-Korig, levaram os autores a pesquisar aquários comercializados na cidade de São Paulo, Brasil. Os peixes ornamentais desta pesquisa provêm do exterior, do Norte e do Nordeste do Brasil e as plantas aquáticas, de várias regiões do país. Foram visitadas onze lojas do ramo e, em nove, foi comprovada a existência de vetores de S. mansoni; B. straminea, o mais importante vetor do Nordeste, foi encontrado em oito lojas e B. teruiçophila, em três. Em face da permanente imigração de nordestinos para o Estado de São Paulo, e da atual expansão da esquistossomose mansoni avulta o interesse no encontro de novos mecanismos de dispersão de planorbídeos, a exigir adequadas medidas de vigilância epidemiológica.
Verificação da interferência de carbonato de cálcio na dosagem de iodo em sal refinado
Authors: Silveira Neusa Vitória Valério , Amato Clementina
Published: March 2024

Foi determinado o teor de iodo em 52 amostras de sal refinado exposto à venda no comércio da cidade de São Paulo, coletadas pela fiscalização da Divisão de Alimentação Pública da Secretaria de Estado da Saúde, São Paulo. Observou-se que a maioria das amostras não apresentava o teor de iodo exigido pela legislação brasileira pertinente, que é de 10 mg por 1000 g de sal refinado. Foi verificado que o antiumectante CaCO" não interfere significativamente na dosagem do iodo.
Imunodiagnóstico da leptospirose humana. 2. Estudo comparativo das reações de soroaglutinação microscópica, hemaglutinação passiva e imunofluorescência indireta
Authors: Ribeiro Maricy Alves , Kawarabayashi Massami , Yamada Lúcia Kaoru , Takeda Augusta Kiyomi , Corrêa Marcelo Oswaldo Alvares
Published: March 2024

Foram realizadas provas de hemaglutinação pa.ssiva e de imunefluorescêncía indireta em 98 soros obtidos de 38 pacientes com leptospirose causada presumivelmente pelos soro tipos icterohaemorrhagiae, copenhageni, grippotyphosa ou pomona. Hemácias de carneiro. sensibilizadas com antígeno polissacarfdico F" obtido de leptospira do. sorotípo patoc, foram utilizadas na hemaglutinação passiva. Para a prova de imunofluorescência indireta foram empregados antígenoa íntegros do. mesmo. sorotipo. Os resultados foram comparados com os obtidos através da prova de aglutinação microscópíca, na qual foram empregados .10 soro tipos patogênicos. As reações de hemaglutinação passiva e de imunofluorescência indireta mostraram ser gênero. específicas, sendo. que a primeira caracterizou-se por ser a mais indicada para o. diagnóstico. precoce da leptospirose humana aguda.
Detecção de antígenos polissacarídicos capsulares e tipagem de streptococcus pneumoniae em líquido cefalorraquidiano pela contraimunoeletroforese
Authors: Pires Raquel Bellinati Robert , Takeda Augusta Kiyomi , Melles Carrmo Elias Andrade , Taunay Augusto de Escragnolle
Published: March 2024

Foi estudada a aplicação da contraimunoeletroforese em fitas de acetato de celulose no diagnóstico das meningites por S. pneumoniae e na sorotipagem dos pneumococos responsáveis por esta infecção em nosso meio. Este método foi aplicado em 547 amostras de líquido cefalorraquidiano de pacientes internados no Hospital Emílio Ribas, São Paulo, Brasil. Antígenos polissacarídicos capsulares deste microorganismo foram detectados em 85,18% das 216 amostras positivas na cultura, quando se utilizou soro polivalente contra os 83 tipos de pneumococo. Este índice se elevou a 90,74% quando foram utilizados, separadamente, 9 diferentes pools de soros, contendo cada um anticorpos específicos para 7 até 11 tipos de pneumococo. Sete das 296 amostras de líquido cefalorraquidiano, negativas na cultura e na bacterioscopia, foram positivas na contraimunoeletroforese, e 28 das 35 amostras de líquido cefalorraquidiano, negativas na cultura e positivas na bacterioscopia, foram também positivas na contraimunoeletroforese. Foi verificada acentuada prevalência de pneumococos dos grupos 6 e 18 em crianças de até 9 anos. Nas faixas etárias mais altas, foram freqüentes os tipos 1, 2, 3 e 4, e os grupos 7 e 12. O método clássico (Neufeld) de sorotipagem aplicado em algumas cepasisoladas de líquido cefalorraquidiano apresentou concordância absoluta com a contraimunoeletroforese, quanto aos tipos de pneumococo identificados em cada caso. Na tipagem do pneumococo foi utilizado o sistema de nomenclatura dinamarquês.
Crescimento e termo-resistência da yersinia enterocolitica, sorotipo 03
Authors: Gelli Dilma Scala
Published: March 2024

Foram usados alguns substratos, nos p H 5,0, 7,0 e 9,0, para se verificar a influência sobre ° crescimento e termo-resistência da Yersinia enterocolitica, sorotipo 0" quando relacionados a diferentes temperaturas, tempos de incubação e exposição. Para a avaliação do crescimento, após a inoculação de determinado número de células viáveis, e incubação por 1, 3, 5, 7 e 30 dias, observou-se que, a menos 15°C, a cepa não se multiplica; a 42°C, após 24 horas, encontra-se destruída; a 25°C, o período de adaptação nos diferentes substratos é menor, quando comparado com o das temperaturas de 8 e 37°C; ° pH 5,0 favorece o desenvolvimento desta bactéria, e a pectina de batata é particularmente desfavorável à mesma. Para os testes de termo-resistência, as temperaturas selecionadas foram de 68 e 72°C, por períodos de exposição de 1, 2, 4, 6 e 10 minutos, usando-se os mesmos substratos testados no crescimento. Após estes testes, os tubos expostosà ação térmica foram incubados a 8°C, por 25 dias e, em alguns substratos e pH, a cepa foi capaz de se recuperar da injúria que sofrera com ° calor.
Resíduos de pesticidas organoclorados em leite humano, São Paulo, Brasil, 1979-1981
Authors: Lara Walkyria H. , Barretto Heloisa H. C. , Inomata Odete N. K.
Published: March 2024

Um estudo foi feito na cidade de São Paulo, Brasil, com 25 amostras de leite humano obtido de doadoras no Banco de Leite do Hospital do Servidor Público do Estado de São Paulo, e de algumas voluntárias. Isômeros de HCH e metabolitos de DDT foram encontrados em todas as amostras e, em apenas uma, foi encontrado dieldrin. Os níveis de HCH total (soma dos isômeros alfa, beta e gama) estão entre 3 /Lg/l e 758 /Lg/l, mas 90% das amostras apresentaram valores abaixo de 38 /Lg/l. Para o complexo de DDT (somatória de p-p'DDE e p-p'DDT), os níveis estão entre 10 /Lg/l e 2610 /Lg/l. Este máximo de 2610 /Lg/l é muito mais alto que os outros níveis encontrados, pois 80% das amostras estão abaixo de 318 /Lg/l.
Níveis de nitratos em hortaliças
Authors: Lara Walkyria H. , Takahashi Michiko Y.
Published: March 2024

Para avaliar a variação dos níveis de nitratos existentes em hortaliças frescas, como alface, batata, cenoura, couve e espinafre, foram analisadas amostras dessas hortaliças, coleta das ao acaso em feiras livres da cidade de São Paulo. As amostras ae espinafre apresentaram consistentemente níveis altos de nitratos, com um mínimo de 545 mg /kg e um máximo de 4136 mg Zkg, com uma média de 2030 mg/kg e um 90. 0 percentil de 3306 mg /kg, enquanto que algumas amostras de batata não apresentaram nitratos, havendo um máximo de 748 mg /kg, uma média de 145 mg Zkg e 90. 0 percentil de 370 mg/kg. As amostras de alface, cenoura e couve apresentaram variações consideráveis, não sendo encontrados nitratos em algumas amostras ou atingindo, por vezes, valor bastante alto, como o de uma amostra de couve, o mais alto encontrado neste estudo, 5896 mg/kg.