bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dynamique Spatio-Temporelle et Intérêt Pour la Conservation de la Forêt Classée de Goin-Débé, Une Aire Protégée Menacée de Disparition à l’Ouest de la Côte d’Ivoire
Authors: Malan Djah François , Kougbo Ménéké Distel , Dogba Mathieu , Konan Amenan Sylvie 
Published: November 2023

La forêt classée de Goin-Débé considérée comme zone d’importance pour la biodiversité, est depuis la crise post-électorale, l’objet d’exploitations agricoles et d’infiltrations par des paysans, mettant ainsi en péril son statut de refuge de la biodiversité. Ainsi, cette étude vise à évaluer l’état de conservation de la végétation et de la flore de cette forêt. Pour ce faire, une étude diachronique a d’abord été effectuée à partir des images satellitaires Landsat TM des années 1988 et 1998 et des images Landsat OLI/TIRS de l‘année 2020. Ensuite, un inventaire floristique a été effectué dans les différentes formations végétales de la forêt classée. L’exploitation des images satellitaires couplée aux analyses des données d’inventaire floristique révèle des dynamiques diamétralement opposées entre les périodes 1988 à 1998 et 1998 à 2020 dans la végétation. La première période a été marquée par un gain considérable en termes de superficie des jachères du sud-ouest au nord-ouest de la forêt classée. Alors que la seconde a vu une régression significative des surfaces des formations végétales au profit des exploitations cacaoyères. Les relevés floristiques ont permis d’inventorier 220 espèces appartenant à 176 genres répartis en 63 familles. Cette flore comporte 15 espèces menacées (1 EN, 13 VU, 1 NT) et 22 espèces endémiques du bloc forestier de la Haute Guinée (GCW). Ces espèces, entre autres éléments, confèrent à cette forêt un intérêt particulier qui devrait susciter plus d’actions pour sa conservation.

Since the post-electoral crisis, the Goin-Débé classified forest, considered as an area of importance for biodiversity, has been subject to agricultural exploitation and infiltration by peasants, thus jeopardizing its status as a biodiversity refuge. The aim of this study is to assess the state of conservation of the forest's vegetation and flora. To do this, a diachronic study was first carried out using Landsat TM satellite images from 1988 and 1998 and OLI/TIRS images from. Next, a floristic inventory was carried out in the different plant formations of the classified forest. Satellite images and floristic inventory data reveal diametrically opposed vegetation dynamics between the periods 1988 to 1998 and 1998 to 2020. The first period was marked by a considerable gain in fallow area from the south-west to the north-west of the classified forest. The second period, on the other hand, saw a significant decline in the area of plant formations in favor of cocoa farms. Floristic surveys have identified 220 species belonging to 176 genera divided into 63 families. This flora includes 15 threatened species (1 EN, 13 VU, 1 NT) and 22 species endemic to the Upper Guinea Forest Block (GCW), among other elements that give this forest a particular interest for conservation.
Caractéristiques de la Régénération Naturelle de la Végétation Contractée des Plateaux de l’Ouest du Niger Suivant les Gradients Pluviométrique et d’Anthropisation
Authors: Aboubacar Amadou , Baggnian Issoufou , Laouvali Abdou , Guimbo Iro Dan 
Published: November 2023

La végétation contractée de l’ouest du Niger est affectée par les effets des changements climatiques, l’expansion des champs et l’exploitation anarchique du bois qui ont fortement impacté son potentiel de production et de régénération. La connaissance des paramètres de régénération est nécessaire à l’aménagement et la sauvegarde de ce milieu perturbé. L’objectif est d’étudier la régénération de la végétation contractée sur trois sites, le long d’un gradient pluviométrique et d’anthropisation. Sur chaque site, l’inventaire des ligneux adultes a été réalisé dans des placettes de 2500 m² (100 m x 25 m) disposées le long de cinq (5) transects, à raison de huit (8) placettes par transect. Chaque placette a été subdivisée en 100 placeaux de 25 m² (5 m x 5 m) pour l’inventaire et la mesure des individus de diamètre inférieur à 4 cm, diamètre minimum d’exploitation, considéré comme appartenant à la régénération. Les résultats ont montré une augmentation de la densité de régénération suivant le gradient pluviométrique et d’anthropisation. La famille des Combretaceae a révélé les meilleures capacités de régénération sur l’ensemble des sites investigués. Les autres espèces ont une importance spécifique de régénération très faible ou nulle selon le site. Malgré la péjoration des conditions climatiques et les pressions anthropiques, le taux de régénération sont supérieurs à 50 %. Ceci traduit une certaine résilience des formations végétales contractées.

The contracted vegetation of western Niger is affected by the effects of climate change, the expansion of fields and the anarchic exploitation of timber, which have had a major impact on its production and regeneration potential. Knowledge of regeneration parameters is necessary for the management and protection of this disturbed environment. The aim is to study the regeneration of contracted vegetation at three sites, along a rainfall and anthropisation gradient. On each site, the inventory of adult woody plants was carried out in 2500 m² plots (100 m x 25 m) arranged along five (5) transects, with eight (8) plots per transect. Each plot was subdivided into 100 plots of 25 m² (5 m x 5 m) for the inventory and measurement of individuals with a diameter of less than 4 cm, the minimum logging diameter considered to belong to the regeneration. The results showed an increase in regeneration density along the rainfall and human settlement gradient. The Combretaceae family showed the best regeneration capacity on all the sites investigated. The other species had little or no specific regeneration potential, depending on the site. Despite worsening climatic conditions and human pressures, regeneration rates are above 50%. This indicates a certain resilience of the contracted plant formations.
Relationship between Ferritin Levels with Calcium Levels in Patients Thalassemia β Major in Hospital in Jember
Authors: Aslamy Fantya Cerebella , Riyanti Rini , Abrori Cholis 
Published: November 2023

Thalassemia β major is a hereditary disorder caused by mutations in the β-globin gene, which regulates the formation of one of the components that make up hemoglobin. This disorder results in the production of β-globin chains being reduced or not formed. The prevalence of thalassemia carriers in Indonesia reached 3.8% of the entire population based on data from the Ministry of Health in 2019. Therapy for thalassemia β major patients is lifelong transfusion, which results in iron overload and triggers hypocalcemia and osteoporosis. The aim of this study was to determine the relationship between ferritin levels and calcium levels in thalassemia β major patients. This study uses an observational analytic research type and a cross-sectional research design. This research was conducted at the RSD dr. Soebandi Jember, Jember Clinic Plantation Hospital, and in December 2019-January 2020. The total sample was 13 patients suffering from thalassemia β major aged 1-18 years. The results of the Pearson analysis showed that p=0.858 showed that there was no ignificant correlation between ferritin levels and calcium levels in Thalassemia β major in Jember.

Keywords: Thalassemia β major, ferritin levels, calcium levels, hypocalcemia
Mortality Rates Of Adult Pulmonary Tuberculosis With Malnutrition: A Case Report And Comprehensive Literature Review
Authors: Rakasiwi Muhammad Ilham Dhiya , Siregar Astrid Mariam Khairani , Saputro Brayanna Infinita Laviashna , Isbaniah Fathiyah , Octovia Lily Indriani 
Published: November 2023

Tuberculosis (TB) and malnutrition are still major public health problems in the world. These two clinical conditions can occur simultaneously and create a vicious cycle that worsens TB infection or nutritional status. This case report aims to examine the relationship between low nutritional status (malnutrition) of patients and death due to pulmonary TB. A 31 year old woman came to the pulmonary clinic of a tertiary hospital in Jakarta for her third month of drug-sensitive anti-TB drug (OAT) treatment control. Three months earlier, the patient underwent a rapid diagnostic test (RDT) to determine OAT resistance. The conclusion of her anthropometric examination was body mass index (BMI) of 15.6 kg/m2. Before being diagnosed with pulmonary TB, she always had difficulty gaining weight. During the course of disease, her weight decreased by 5 kg per month. After undergoing treatment for 6 months, the patient was declared complete after 6 months of therapy, without any improvement in nutritional status. At 1 year follow-up, the patient experienced a relapse of pulmonary TB with a BMI of 13.2 kg/m2. She died 2 months after diagnosis of relapse TB. Improvement in clinical complaints and conversion to bacteriological examination are indications of successful therapy, including improvement in nutritional status. To analyze the relationship between malnutrition and pulmonary TB and death, the authors conducted a comprehensive literature search in the journal databases PubMed, Cochrane, and Scopus, followed by analysis according to the PRISMA 2020 flowchart, for a prognostic cohort study of cases of death in pulmonary TB patients with malnutrition. There is a relationship between BMI and the risk of death in TB patients. Anthropometric measurements, especially BMI, need to be carried out during every physical examination of pulmonary TB cases.
Keywords: Body mass index; Malnutrition; Mortality; Tuberculosis
ANALYSIS OF MESOPLASTIC WASTE COMPOSITION IN TOURISM AREA, MUARA BADAK DISTRICT, KUTAI KARTANEGARA REGENCY, EAST KALIMANTAN
Authors: Nurfadilah Nurfadilah , Eryati Ristiana , Fauzan Akhmad Nur 
Published: November 2023

Waste is one of the problems for people all over the world, marine debris can come from community activities from the mainland or from the coast. Most of the activities of coastal communities may produce waste including fishing and tourism activities. Research on plastic waste in the Tourism Beach area of Muara Badak District was conducted to identify the type of mesoplastic, analyze the total weight, density and proportion of mesoplastic and determine differences in mesoplastic. This research was conducted at two tourist beach locations, namely Panrita Lopi Beach and Jingga Beach. The research method used was Purpusive Sampling method with recycling and making transect lines with a size of 100 m × 20 m, followed by dividing the transect into 5 lanes measuring 5 m x 5 m. Four types of mesoplastic were found, namely film, fiber, fragment and styrofoam. The amount of trash found on both beaches was 53 particles with the number of particles on Panrita Lopi Beach as many as 32 particles and Jingga Beach was 21 particles. The results of the composition of the percentage of waste obtained at Panrita Lopi Beach were 50% for fragment types and at Jingga Beach for 71% for filament types. The most common amount of trash found was at Panrita Lopi Beach, this was due to the fact that the number of visitors was greater than that of Pantau Jingga. The relationship between length and weight of waste at Panrita Lopi Beach was 94% while at Jingga Beach it was 58%.
Can Direct Air Capture Deliver?
Authors: Wright Blake 
Published: November 2023

Carbon removal is one, if not the, hottest topic in today’s battle over correcting the global course of climate change, and direct air capture (DAC) is the current darling of the carbon removal space.
DAC works to gather CO2 directly from the atmosphere with an engineered system, like how trees absorb CO2 for photosynthesis, only faster and with a smaller, but manmade, overall footprint.
Popular systems use chemical reactions to extract CO2 from the captured air. Once captured, the CO2 is compressed and stored in geological formations deep in the ground, or in some cases, used to produce low-carbon-intensity products like diesel or aviation fuel. The rest of the captured air is returned to the atmosphere.
The Biden administration has put its weight behind the expansion of DAC facilities in the US. The recent Inflation Reduction Act included tax credits for DAC CO2 as well as broadening the eligibility of qualified DAC facilities. It decreases the amount of CO2 capture requirements from 100,000 tonnes per year to just 1,000.
In addition, the US Department of Energy (DOE) recently awarded up to $1.2 billion for a pair of DAC facilities in Texas and Louisiana. Energy Secretary Jennifer Granholm called the award a “once-in-a-generation investment.”
When announced in August 2023, it was the world’s largest investment in engineered carbon removal. The projects—Battelle’s Project Cypress and 1PointFive’s South Texas DAC hub—are expected to eventually remove greater than 250 times more CO2 than the largest DAC facility currently operating.
The US government isn’t the only entity putting their money where their mouth is when it comes to DAC. Some of the most active investors read like a who’s who of the tech industry.
Microsoft has signed on to use Climeworks services and agreed to purchase up to 315,000 metric tons of CO2 removal from Heirloom Carbon Technologies. Climeworks operates a DAC plant in Iceland. It is one of the biggest globally, capturing and storing 36,000 mtpa of CO2. Both Climeworks and Heirloom are partners in Project Cypress.
Climeworks’ estimated $12-million Orca plant came online in September 2021 and is due to capture 4,000 tonnes of CO2 from the air every year—equivalent to the emissions from about 870 cars. The captured CO2 is then mixed with water and injected into basalt rock 1 km underground, where it slowly turns into a solid carbonate mineral over a 2-year period.
Amazon is purchasing 250,000 metric tons of carbon removal credits over a 10-year period from 1PointFive’s $1-billion Stratos DAC project in Ector County, Texas, and investing in CarbonCapture Inc. The DAC investment is part of Amazon’s Climate Pledge to reach net-zero carbon emissions by 2040.
In April, online payment firm Stripe teamed up with Google parent Alphabet, Facebook parent Meta, Shopify, and McKinsey to launch an initiative called Frontier, which plans to purchase $925 million worth of carbon removal by 2030 from carbon removal companies in an effort to advance research and development efforts and lower costs.
Technology Focus: Drilling and Completion Fluids (November 2023)
Authors: Soriano Víctor 
Published: November 2023

Today, the industry faces tremendous challenges related to safety, efficiency, sustainability, and socioenvironmental responsibility. At every stage, well-construction projects must be concerned about those aspects to establish measurable barriers for preventing issues. Therefore, drilling and completion fluids are critical for achieving project goals and ensuring operations are executed as planned.
Drilling and completion fluid selection is a complex process in which addressing future downhole conditions for predicting potential problems is vital to eliminating nonproductive time. Conventional deep high-pressure/high-temperature wells in South sub-Andean Bolivia or unconventional long horizontal wells in Argentina are pushing drilling-fluid design to its limits with regard to keeping equivalent circulating density (ECD) as low as possible while preventing formation damage. Paper SPE 211539 describes several successful applications of low ECD organophilic clay-free inverted emulsion fluid in reaching project goals in challenging environments.
On the other hand, constant monitoring of drilling-fluid properties also is necessary. Fluid properties must be monitored so additives can be adjusted to prevent problems. Even though conventional monitoring relies on humans for performing periodic tests, recent technology developments offer a solution for complex drilling operations by allowing continuous real-time monitoring of drilling-fluid properties using sensors and artificial intelligence, as fully described in paper SPE 212443.
Finally, discussion of drilling and completion fluids must mention solids-control equipment. Ensuring that fluid properties are within acceptable ranges without discarding valuable additives is the main objective of any solids-control-equipment arrangement. Things become more complicated when working with low-density drilling fluids, where a comprehensive understanding of solids-removal techniques and their customization for a particular application requires research and laboratory-scale trials, which are rare in the literature.
Paper SPE 212470 provides relevant and novel information through a full-scale test program for solids-control-equipment efficiency optimization focused on treating low-density muds.
Recommended additional reading at OnePetro: www.onepetro.org.
SPE 211509 High-Fluid-Loss Squeeze and Reticulated Foam Lost-Circulation Material Plugs 40,000-Micron Laboratory Simulated Fracture/Vug Opening by Sharath Savari, Halliburton, et al.
SPE 214171 Using Cerium Oxide (6.0 SG) as Weighting Material in HT/HP Drilling Fluids by Gholam Reza Soori, Cahya Mata Oiltools, et al.
A Dynamic Real-Time Optimization Strategy for the Tennessee Eastman Benchmark
Authors: Sahlodin Ali Mohammad , Boozarjomehry Ramin Bozorgmehry , Fakhroleslam Mohammad 
Published: November 2023

Abstract

Conventional real-time optimization (RTO) algorithms provide the steady-state set points at which the process would operate economically. However, the process may suffer from severe transient losses going from the nominal steady state to the optimal one. This may also lead to off-specification production during set point transitions. In this paper, a dynamic RTO strategy accounting for the transient production cost is developed for the Tennessee Eastman process. The economic objective function is defined as the integral of sum of two components over a specified prediction horizon: (i) the transient operating cost and (ii) the cost accrued due to unsalability of the off-specification product during transitions. Furthermore, a predictive model is employed to estimate future process outputs and product quality required to evaluate the objective function and constraints. The results demonstrate significant economic savings (up to 28%) of the proposed strategy over a conventional RTO approach that considers steady-state economics only, especially when the process is subjected to sustained disturbances.
Benefits of Using Tall Wind Turbine Towers in the U.S. Wind-Rich Regions
Authors: Cai Bin , Sritha Sri , Takle Eugene S. , Milliren Chris 
Published: November 2023

Abstract

The wind tower height in the US continues to be between 80 and 90 m. With wind technologies advancing, tall towers are expected to be used more frequently, which will also reduce the levelized cost of energy (LCOE) and increase the profit margin. A previously developed model for estimating energy production is first verified in this paper using measured wind and power generation data from a site in Minnesota. Both the hourly and monthly energy productions are shown to be accurately estimated by the model. To assess the benefits of tall towers, Annual Energy Productions (AEPs) are then estimated at different hub heights for multiple sites using simulated wind data from the National Renewable Energy Laboratory. Results are compared with those obtained from the measured data to confirm the accuracy of the simulated data in predicting AEPs. It is further demonstrated that (1) with a 20-m increase in hub height, the AEP increases by 11% on average, and (2) the LCOE reduces as hub height increases. By combining future turbine technologies with tall towers, it is shown that the LCOE of wind power can be lowered by about 23%, and the profit margin can be increased by more than 40%.
Global Ranking of the Sensitivity of Interaction Potential Contributions within Classical Molecular Dynamics Force Fields
Authors: Coveney Peter , Edeling Wouter , Vassaux Maxime , Yang Yiming , Wan Shunzhou , Guillas Serge 
Published: November 2023

Abstract

Uncertainty quantification (UQ) is rapidly becoming a sine qua non for all forms of computational science out of which actionable outcomes are anticipated. However, much of the microscopic world of atoms and molecules has seemingly remained immune to these developments, and due to the fundamental problems of reproducibility and reliability, it is essential that practitioners do pay attention to the issues concerned. Here a UQ study is undertaken of classical molecular dynamics with a particular focus on uncertainties in the high-dimensional force-field parameters, which affect key quantities of interest, including material properties and binding free energy predictions in drug discovery and personalized medicine. Using scalable UQ methods based on active subspaces that invoke machine learning and Gaussian processes, the sensitivity of the input parameters is ranked. The analyses reveal that the prediction uncertainty is dominated by a small number of the hundreds of interaction potential parameters within the force fields employed. This ranking is of immediate scientific interest as it highlights what forms of interaction control the prediction uncertainty, and enables systematic improvements to be made in future optimizations of such parameters.
Unaccounted natural vegetation loss in Brazilian Amazon
Authors: Messias Cassiano , Almeida Claudio , Silva Daniel , Soler Luciana , Maurano Luiz , Camilotti Vagner , Alves Fábio , Silva Libério , Lima Thiago , Renó Vivian , Correia-Lima Deborah , Belluzzo Amanda , Quadros Camila , Barradas Delmina , Moraes Douglas , Bastos Eduardo Marcelino , Cunha Igor , Souza Jefferson , Barros Lucélia , Gusmão Luiz , de Almeida Rodrigo , Moraes Dayane , Silva Diego , Chrispim Eduardo , Neto Manoel Rodrigues , Matos Marlon , Moreira Noeli , Teixeira Raíssa Caroline Dos Santos , Alves Gabriel , Andrade Ana Carolina , Perez Letícia , Reis Mariane , Bento Bruna , Filho Hugo Castro , Santos Igor , Araújo Liliane , Matias Maira , Silva Murilo , Pinheiro Fábio , Carvalho André , Xaud Haron , Xaud Maristela , Matos Ana Paula , Baumann Luis , Silva Elaine , Ferreira Laerte , Pinto João , Adami Marcos 
Published: November 2023

Abstract

Deforestation in the Brazilian Amazon has been monitored since 1988 by the Brazilian Amazon Satellite Monitoring Program (PRODES Amazonia), and its data has been pivotal in guiding environmental public policies in the country. While forest formations are officially supported by a monitoring program, a significant portion of the Amazon biome (6.6 % or ~280,000 km²) constituted by non-forest (NF) phytophysiognomies (e.g., savanna, grasslands, flood lands) are still unmonitored. To address this information gap, the PRODES NF system was built. First findings based on PRODES NF monitoring indicate that the Brazilian Amazon lost 10.46% (~30,000 km²) of NF area, mostly in the last two decades. The states of Mato Grosso, Roraima and Amapá emerged as the primary hotspots of losses. Among the phytophysiognomies, savannas were the most affected. A strong correlation between NF loss and deforestation was revealed in the Amazon biome, with no statistical differences in terms of relative area, suggesting a continuum of vegetation loss along this biome that does not discriminate between forest and non-forest. Finally, PRODES Amazonia and PRODES NF together provide relevant official data that sum up a total of vegetation loss of ~798.000 km² in the Brazilian Amazon (~19% of the entire biome).