Bonding-Compatible Corrosion Inhibitor for Rinsing Metals

A corrosion-inhibiting mixture of compounds has been developed for addition to the water used to rinse metal parts that have been cleaned with aqueous solutions in preparation for adhesive bonding of the metals to rubber and rubber-like materials. Prior to the development of this corrosion inhibitor, the parts (made, variously, of D6AC steel and 7075-T73 aluminum) were rinsed by deionized water, which caused corrosion in some places on the steel parts especially in such occluded places as sealing surfaces and threaded blind holes. An integral part of the particular cleaning process is the deposition of a thin layer of silicates and silane primers that increase the strength of the adhesive bond. The corrosion inhibitor is formulated, not only to inhibit corrosion of both D6AC steel and 7075- T73 aluminum, but also to either increase or at least not reduce the strength of the adhesive bond to be formed subsequently. The corrosion inhibitor is a mixture of sodium silicate and sodium tetraborate. The sodium silicate functions as both a corrosion inhibitor and a bond-strength promoter in association with the silane primers. The sodium tetraborate buffers the rinse solution at the optimum pH and functions as a secondary corrosion inhibitor for the steel. For a given application, the concentrations of sodium silicate and sodium tetraborate must be chosen in a compromise among the needs to inhibit corrosion of steel, inhibit corrosion of aluminum, and minimize cosmetic staining of both steel and aluminum. Concentrations of sodium silicate in excess of 150 parts of silicon per million parts of solution (ppm Si) have been determined to enhance inhibition of corrosion; unfortunately, because of the alkalinity of sodium silicate, even a small concentration can raise the pH of the rinse solution to such a level that aluminum becomes corroded despite the inhibiting effect. The pH of a solution that contains a high concentration of sodium silicate can be decreased by adding sodium tetraborate. On the other hand, the addition of sodium tetraborate increases the concentration of dissolved solids to such a high level that cosmetic staining becomes an issue

EVALUASI STABILITAS PARAMETER KALIBRASI KAMERA DJI PHANTOM 4 PRO DALAM MISI PEMOTETRAN (Studi Kasus: Kelurahan Tunggul Wulung, Kec. Lowokwaru, Kota Malang)

Saat ini drone digunakan untuk pemetaan cepat untuk membuat peta dengan wilayah yang relatif kecil atau gambar udara format kecil. Kamera drone memiliki batasan pada Parameter Orientasi Interior (IOP) yang tidak stabil, sama seperti kamera non-metrik lainnya. Kamera non-metrik menghasilkan gambar berkualitas tinggi, tetapi karena performa geometriknya yang buruk, pemosisian gambar yang dihasilkan menjadi kurang tepat. Dengan mengkalibrasi kamera yang digunakan, kualitas geometris foto bisa ditingkatkan. Kalibrasi kamera dilakukan dengan metode self-calibration bundle adjustment dalam sfm (structur from montion) dan metode bundle adjustment klasik. Teknik pemotetran yang digunakan yaitu pemotetran normal dan pemotetran konvergen. Tujuan dari penelitian ini adalah untuk mengetahui kestabilan parameter kalibrasi kamera drone Dji Phantom 4 Pro dan pengaruhnya terhadap akurasi geometris yang diperoleh. Dari hasil penelitian diperoleh Drone Dji Phantom 4 memiliki parameter kalibrasi yang tidak stabil dimana hasil kalibrasi tiap metode pemotetran dan metode kalibrasi memiliki perbedaan yang signifikan. Perbedaan parameter kalibrasi yang dihasilkan mengakibatkan ketelitian geometrik yang dihasilkanpun berbeda. Pemotetran normal dengan metode sfm memperoleh ketelitian geometrik yang paling teliti yaitu 0.27 m

Status of Grauer’s Gorilla and Chimpanzees in Eastern Democratic Republic of Congo: Historical and Current Distribution and Abundance

This report summarises the current state of knowledge on the distribution, densities and trends in abundance of Grauer’s gorilla (Gorilla beringei graueri) and the eastern chimpanzee (Pan troglodytes schweinfurthii) in eastern Democratic Republic of Congo (DRC). It summarises the historical knowledge about the distribution of Grauer’s gorilla across its range and describes the development of a Conservation Action Plan (CAP) for these two ape species. A result of this CAP was funding to undertake an assessment of the current status of these apes across the range of Grauer’s gorilla. Wildlife Conservation Society (WCS) and Fauna & Flora International (FFI) worked with Institut Congolais pour la Conservation de la Nature (ICCN) and the Reserve managers of the Reserve des Gorilles de Punia (RGPU) and local communities to undertake surveys across the region using a variety of methods: line transects, recces along paths and patrol data from data collected by rangers while on patrol and entered into SMART software

Making remote measurement technology work in multiple sclerosis, epilepsy and depression: survey of healthcare professionals

BACKGROUND: Epilepsy, multiple sclerosis(MS) and depression are long term, central nervous system disorders which have a significant impact on everyday life. Evaluating symptoms of these conditions is problematic and typically involves repeated visits to a clinic. Remote measurement technology (RMT), consisting of smartphone apps and wearables, may offer a way to improve upon existing methods of managing these conditions. The present study aimed to establish the practical requirements that would enable clinical integration of data from patients' RMT, according to healthcare professionals. METHODS: This paper reports findings from an online survey of 1006 healthcare professionals currently working in the care of people with epilepsy, MS or depression. The survey included questions on types of data considered useful, how often data should be collected, the value of RMT data, preferred methods of accessing the data, benefits and challenges to RMT implementation, impact of RMT data on clinical practice, and requirement for technical support. The survey was presented on the JISC online surveys platform. RESULTS: Among this sample of 1006 healthcare professionals, respondents were positive about the benefits of RMT, with 73.2% indicating their service would be likely or highly likely to benefit from the implementation of RMT in patient care plans. The data from patients' RMT devices should be made available to all nursing andmedical team members and could be reviewed between consultations where flagged by the system. However, results suggest it is also likely that RMT data would be reviewed in preparation for and during a consultation with a patient. Time to review information is likely to be one ofthe greatest barriers to successful implementation of RMT in clinical practice. CONCLUSIONS: While further work would be required to quantify the benefits of RMT in clinical practice, the findings from this survey suggest that a wide array of clinical team members treating epilepsy, MS and depression would find benefit from RMT data in the care of their patients. Findings presented could inform the implementation of RMT and other digital interventions in the clinical management of a range of neurological and mental health conditions

Grauer’s Gorillas and Chimpanzees in Eastern Democratic Republic of Congo (Kahuzi-Biega, Maiko, Tayna and Itombwe Landscape): Conservation Action Plan 2012–2022

First paragraph: En janvier 2011, l'Institut Jane Goodall (JGI d'après le sigle en anglais), avec le support financier des fondations Arcus et The Word We Want, a réuni ses partenaires pour la conservation de la nature afin de développer un plan d'action pour la conservation des grands singes de l'Est de la République Démocratique du Congo. Le but principal de cette initiative était d'identifier les menaces critiques sur les gorilles et les chimpanzés et leurs habitats et de développer des stratégies de conservation en réponse à ces menaces. L'accent a été mis sur des actions systémiques et stratégiques ayant une valeur ajoutée pour l'effort de planification à grande échelle d'efforts ciblés. Au cours de ce processus, le JGI, en collaboration avec le Ministère de l'Environnement, de la Conservation de la Nature et du Tourisme (MECNT) et l'Institut Congolais pour la Conservation de la Nature (ICCN), a travaillé étroitement avec de nombreuses parties prenantes provinciales et locales et des ONG internationales de conservation. La liste des participants aux ateliers se trouve en Annexe I

The impact of data from remote measurement technology on the clinical practice of healthcare professionals in depression, epilepsy and multiple sclerosis: survey

BackgroundA variety of smartphone apps and wearables are available both to help patients monitor their health and to support health care professionals (HCPs) in providing clinical care. As part of the RADAR-CNS consortium, we have conducted research into the application of wearables and smartphone apps in the care of people with multiple sclerosis, epilepsy, or depression.MethodsWe conducted a large online survey study to explore the experiences of HCPs working with patients who have one or more of these conditions. The survey covered smartphone apps and wearables used by clinicians and their patients, and how data from these technologies impacted on the respondents' clinical practice. The survey was conducted between February 2019 and March 2020 via a web-based platform. Detailed statistical analysis was performed on the answers.ResultsOf 1009 survey responses from HCPs, 1006 were included in the analysis after data cleaning. Smartphone apps are used by more than half of responding HCPs and more than three quarters of their patients use smartphone apps or wearable devices for health-related purposes. HCPs widely believe the data that patients collect using these devices impacts their clinical practice. Subgroup analyses show that views on the impact of this data on different aspects of clinical work varies according to whether respondents use apps themselves, and, to a lesser extent, according to their clinical setting and job role.ConclusionsUse of smartphone apps is widespread among HCPs participating in this large European survey and caring for people with epilepsy, multiple sclerosis and depression. The majority of respondents indicate that they treat patients who use wearables and other devices for health-related purposes and that data from these devices has an impact on clinical practice

Gorilles de Grauer et Chimpanzés de l’Est de la République Démocratique du Congo (Paysage de Kahuzi-Biega, Maiko, Tayna et Itombwe) Plan d’action pour la conservation 2012-2022

First paragraph: En janvier 2011, l'Institut Jane Goodall (JGI d'après le sigle en anglais), avec le support financier des fondations Arcus et The Word We Want, a réuni ses partenaires pour la conservation de la nature afin de développer un plan d'action pour la conservation des grands singes de l'Est de la République Démocratique du Congo. Le but principal de cette initiative était d'identifier les menaces critiques sur les gorilles et les chimpanzés et leurs habitats et de développer des stratégies de conservation en réponse à ces menaces. L'accent a été mis sur des actions systémiques et stratégiques ayant une valeur ajoutée pour l'effort de planification à grande échelle d'efforts ciblés. Au cours de ce processus, le JGI, en collaboration avec le Ministère de l'Environnement, de la Conservation de la Nature et du Tourisme (MECNT) et l'Institut Congolais pour la Conservation de la Nature (ICCN), a travaillé étroitement avec de nombreuses parties prenantes provinciales et locales et des ONG internationales de conservation. La liste des participants aux ateliers se trouve en Annexe I

Isolated Grauer's gorilla populations differ in diet and gut microbiome

The animal gut microbiome has been implicated in a number of key biological processes, ranging from digestion to behavior, and has also been suggested to facilitate local adaptation. Yet studies in wild animals rarely compare multiple populations that differ ecologically, which is the level at which local adaptation may occur. Further, few studies simultaneously characterize diet and gut microbiome from the same sample, despite their likely interdependence. Here, we investigate the interplay between diet and gut microbiome in three geographically isolated populations of the critically endangered Grauer's gorilla, which we show to be genetically differentiated. We find population- and social group-specific dietary and gut microbial profiles and co-variation between diet and gut microbiome, despite the presence of core microbial taxa. There was no detectable effect of age, and only marginal effects of sex and genetic relatedness on the microbiome. Diet differed considerably across populations, with the high-altitude population consuming a lower diversity of plants compared to low-altitude populations, consistent with plant availability constraining diet. The observed pattern of covariation between diet and gut microbiome is likely a result of long-term social and environmental factors. Our study suggests that the gut microbiome is sufficiently plastic to support flexible food selection and hence contribute to local adaptation

The Association Between Home Stay and Symptom Severity in Major Depressive Disorder: Preliminary Findings From a Multicenter Observational Study Using Geolocation Data From Smartphones

BACKGROUND: Most smartphones and wearables are currently equipped with location sensing (using GPS and mobile network information), which enables continuous location tracking of their users. Several studies have reported that various mobility metrics, as well as home stay, that is, the amount of time an individual spends at home in a day, are associated with symptom severity in people with major depressive disorder (MDD). Owing to the use of small and homogeneous cohorts of participants, it is uncertain whether the findings reported in those studies generalize to a broader population of individuals with MDD symptoms. OBJECTIVE: The objective of this study is to examine the relationship between the overall severity of depressive symptoms, as assessed by the 8-item Patient Health Questionnaire, and median daily home stay over the 2 weeks preceding the completion of a questionnaire in individuals with MDD. METHODS: We used questionnaire and geolocation data of 164 participants with MDD collected in the observational Remote Assessment of Disease and Relapse-Major Depressive Disorder study. The participants were recruited from three study sites: King's College London in the United Kingdom (109/164, 66.5%); Vrije Universiteit Medisch Centrum in Amsterdam, the Netherlands (17/164, 10.4%); and Centro de Investigación Biomédica en Red in Barcelona, Spain (38/164, 23.2%). We used a linear regression model and a resampling technique (n=100 draws) to investigate the relationship between home stay and the overall severity of MDD symptoms. Participant age at enrollment, gender, occupational status, and geolocation data quality metrics were included in the model as additional explanatory variables. The 95% 2-sided CIs were used to evaluate the significance of model variables. RESULTS: Participant age and severity of MDD symptoms were found to be significantly related to home stay, with older (95% CI 0.161-0.325) and more severely affected individuals (95% CI 0.015-0.184) spending more time at home. The association between home stay and symptoms severity appeared to be stronger on weekdays (95% CI 0.023-0.178, median 0.098; home stay: 25th-75th percentiles 17.8-22.8, median 20.9 hours a day) than on weekends (95% CI -0.079 to 0.149, median 0.052; home stay: 25th-75th percentiles 19.7-23.5, median 22.3 hours a day). Furthermore, we found a significant modulation of home stay by occupational status, with employment reducing home stay (employed participants: 25th-75th percentiles 16.1-22.1, median 19.7 hours a day; unemployed participants: 25th-75th percentiles 20.4-23.5, median 22.6 hours a day). CONCLUSIONS: Our findings suggest that home stay is associated with symptom severity in MDD and demonstrate the importance of accounting for confounding factors in future studies. In addition, they illustrate that passive sensing of individuals with depression is feasible and could provide clinically relevant information to monitor the course of illness in patients with MDD