ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAmperometric Titration of Mercaptans with Silver Nitrate Using the Rotating Platinum ElectrodeJ.M. Kolthoff and W.E. HarrisCite this: Ind. Eng. Chem. Anal. Ed. 1946, 18, 3, 161–162Publication Date (Print):March 1, 1946Publication History Published online1 May 2002Published inissue 1 March 1946https://pubs.acs.org/doi/10.1021/i560151a002https://doi.org/10.1021/i560151a002research-articleACS PublicationsRequest reuse permissionsArticle...

Reproductive investment decisions form an integral part of life-history biology. Selection frequently favours plasticity in that can generate maternal effects on offspring development. For example, if females differentially allocate resources based mate attractiveness or quality, this create a non-genetic link between and fitness with potential consequences for ecological evolutionary dynamics. It is therefore important to understand under what conditions differential into relation male...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Polarography of Uranium. I. Reduction in Moderately Acid Solutions. Polarographic Determination UraniumW. E. Harris and M. KolthoffCite this: J. Am. Chem. Soc. 1945, 67, 9, 1484–1490Publication Date (Print):September 1, 1945Publication History Published online1 May 2002Published inissue 1 September 1945https://pubs.acs.org/doi/10.1021/ja01225a023https://doi.org/10.1021/ja01225a023research-articleACS PublicationsRequest reuse permissionsArticle...

To explore the perceived unfairness experienced by student nurses during their undergraduate clinical placements.It is important that feel supported practice staff placement education experiences. However, it has been reported learners can ignored, unsupported and bullied others in environment this a detrimental effect on learning. It to understand nurse perspective ways which feelings of belongingness might be enhanced area.A descriptive narrative approach was used qualitative data...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA New Method for the Polarographic Determination of NitrateI. M. Kolthoff, W. E. Harris, and G. MatsuyamaCite this: J. Am. Chem. Soc. 1944, 66, 10, 1782–1786Publication Date (Print):October 1, 1944Publication History Published online1 May 2002Published inissue 1 October 1944https://doi.org/10.1021/ja01238a050RIGHTS & PERMISSIONSArticle Views89Altmetric-Citations94LEARN ABOUT THESE METRICSArticle Views are COUNTER-compliant sum full text article...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Polarography of Uranium. II. in Strongly Acid Solution1I. M. Kolthoff and W. E. HarrisCite this: J. Am. Chem. Soc. 1946, 68, 7, 1175–1179Publication Date (Print):July 1, 1946Publication History Published online1 May 2002Published inissue 1 July 1946https://pubs.acs.org/doi/10.1021/ja01211a011https://doi.org/10.1021/ja01211a011research-articleACS PublicationsRequest reuse permissionsArticle Views152Altmetric-Citations58LEARN ABOUT THESE...

Calcium sulphate has traditionally been used as a filler of dead space arising during surgery. Various complications have described following the use Stimulan bio-absorbable calcium beads. This study is prospective observational to assess safety profile these beads when in revision arthroplasty, comparing complication rates with those reported literature.A total 755 patients who underwent 456 knee arthroplasties (TKA) and 299 hip (THA), mean follow-up 35 months (0 78) were included study.A...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Polarography of Uranium. III. in Very Weakly Acid, Neutral or Basic Solution1W. E. Harris and I. M. KolthoffCite this: J. Am. Chem. Soc. 1947, 69, 2, 446–451Publication Date (Print):February 1, 1947Publication History Published online1 May 2002Published inissue 1 February 1947https://doi.org/10.1021/ja01194a073RIGHTS & PERMISSIONSArticle Views130Altmetric-Citations58LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum full text...

Abstract Sustainability in our food and fiber agriculture systems is inherently knowledge intensive. It more likely to be achieved by using all the knowledge, technology, resources available, including data-driven agricultural technology precision methods, than relying entirely on human powers of observation, analysis, memory following practical experience. Data collected sensors digested artificial intelligence (AI) can help farmers learn about synergies between domains natural that are key...

Hair morphology differs dramatically between human populations: people of East Asian ancestry typically have a coarse hair texture, with individual fibers being straight, large diameter, and cylindrical when compared to European or African origin. Ectodysplasin-A receptor (EDAR) is cell surface the tumor necrosis factor (TNFR) family involved in development follicles, teeth, sweat glands. Analyses genome-wide polymorphism data from multiple populations suggest that EDAR experienced strong...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRetention Temperature and Column Efficiency in Programmed Gas ChromatographyH. W. Habgood E. HarrisCite this: Anal. Chem. 1960, 32, 4, 450–453Publication Date (Print):April 1, 1960Publication History Published online1 May 2002Published inissue 1 April 1960https://pubs.acs.org/doi/10.1021/ac60160a001https://doi.org/10.1021/ac60160a001research-articleACS PublicationsRequest reuse permissionsArticle Views341Altmetric-Citations56LEARN ABOUT THESE...

The early withdrawal of students from healthcare education programmes, particularly nursing, is an international concern and, despite considerable investment, retention rates have remained stagnant. Here, a regional study student used as example to frame the challenge attrition using concept policy development, wicked problem theory. This approach allows consideration complex derived interactions many interrelated factors, avoiding pitfalls small-scale interventions and over-simplistic...

Understanding the ecological traits which predispose species to local or global extinction allows for more effective pre-emptive conservation management interventions. Insect population declines are a major facet of biodiversity crisis, yet even in Europe they remain poorly understood. Here we identify linked trends 'common and widespread' UK moths. Population trend data from Rothamsted Research Survey spanning 40 years was subject classification regression models common among experiencing...

Abstract The rate of emulsion copolymerization butadiene and styrene, with soap as emulsifier potassium persulfate catalyst, is extremely small at 50°C. presence very amounts high‐molecular mercaptans promotes the reaction. promoting effect a maximum for primary, secondary, tertiary dodecyl decreases either higher or lower molecular weight. independent within wide limits amount mercaptan added after minimum quantity has been exceeded. Mercaptans which are poor promoters may be so because...

Abstract A close correlation exists between the modifying effect of mercaptans in emulsion copolymerization butadiene (75 parts) and styrene (25 mercaptan consumption during polymerization. procedure is described for rapid amperometric titration latices. Mercaptan disappearance curves (i.e., used at various conversions) are given a series primary tertiary widely varying molecular weight two secondary mercaptans. The (and modification by) affected to much greater extent by than that pure...

Abstract Olfactometers have been used for more than 100 years and are integral to experimental chemical ecology. Studies utilising olfactometer bioassays form the foundation understanding behavioural responses of invertebrates stimuli under standardised laboratory conditions. Widely olfactometry apparatuses include two‐arm olfactometers binary through four‐ six‐arm arenas evaluate complex behaviours. Despite its prevalence in ecology studies, there has never a review best practice...

Diabet. Med. 29, 1550–1552 (2012) Abstract Aims To compare the Ipswich Touch Test and VibraTip with Neuropathy Disability Score vibration perception threshold for detecting ‘at‐risk’ foot. Methods We directly compared both ≥ 6 25 V indicating feet in 83 individuals. Results The tests exhibited almost perfect agreement each other ( P < 0.001). results were identical also 0.001) Conclusions These two simple efficient are easy to teach, reliable can be used any setting, neither requires an...

In potato (Solanum tuberosum) production, the number of tubers harvested and their sizes are related to plant population. Field maps spatial variation in density can therefore provide a decision support tool for spatially variable harvest timing optimize tuber by allowing densely populated management zones more tuber-bulking time. Computer vision has been proposed enumerate numbers using images from unmanned aerial vehicles (UAV) but inaccurate predictions merged canopies remains challenge....

Ejaculates function as an integrated unit to ensure male fertility and paternity, can have a complex structure, experience multiple episodes of selection. Current studies on the evolution ejaculates typically focus phenotypic variation in sperm number, size, or related traits such testes size adaptations postcopulatory male-male competition. However, nature ejaculate structure depends genetic covariation between component parts. Here we report quantitative study components cockroach...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRetention Indices in Programmed Temperature Gas Chromatography.H. W. Habgood and E. HarrisCite this: Anal. Chem. 1964, 36, 3, 663–665Publication Date (Print):March 1, 1964Publication History Published online1 May 2002Published inissue 1 March 1964https://pubs.acs.org/doi/10.1021/ac60209a035https://doi.org/10.1021/ac60209a035research-articleACS PublicationsRequest reuse permissionsArticle Views154Altmetric-Citations45LEARN ABOUT THESE METRICSArticle...

The purpose of this study is to use machine learning and exploratory data analysis interrogate patterns metrics from a national-level student survey. Analysis over 1.8 million returns detected long-term stability the predictors satisfaction, with survey items relating course management teaching being consistently most influential. All metric outputs increased period; however, rates increase several dimensions including Overall Satisfaction decreased markedly in recent years point levelling...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAmperometric Determination of Primary and Tertiary MercaptansI. M. Kolthoff W. E. HarrisCite this: Anal. Chem. 1949, 21, 8, 963–965Publication Date (Print):August 13, 1949Publication History Published online1 May 2002Published inissue 13 August 1949https://pubs.acs.org/doi/10.1021/ac60032a023https://doi.org/10.1021/ac60032a023research-articleACS PublicationsRequest reuse permissionsArticle Views68Altmetric-Citations20LEARN ABOUT THESE...