182 research outputs found
Introduction to the Minitrack on Platform Ecosystems in Production and Logistics: Technologies, Business Models, and Data-Driven Artifacts
Towards a Taxonomy of API Services in Logistics
Data are a valuable asset for companies in the logistics sector to optimize internally and develop new business models. They can be like a magnifying glass and make previously opaque logistical processes transparent and find previously hidden potentials for optimization. Typical applications are tracking of the transport status, route optimization, or monitoring of pharmaceutical products, or monitoring shocks for fragile cargo along the trade lanes. One way to use data is to tap into publicly or commercially available Application Programming Interfaces. Hereby, logistics service providers can get or provide data automatically via a machine-to-machine interface. However, the landscape of API service providers is vast, unstructured, and intransparent in terms of potential data that companies can leverage. Given their high potential for the logistics industry, the paper proposes a taxonomy of API services in logistics based on the inductive analysis of three API databases
Minoxidil skin delivery from nanoemulsion formulations containing eucalyptol or oleic acid: Enhanced diffusivity and follicular targeting
In this work, we examined enhanced skin delivery of minoxidil applied in nanoemulsions incorporating skin penetration enhancers. Aliquots of fully characterized oil-in-water nanoemulsions (1 mL), containing minoxidil (2%) and the skin penetration enhancer oleic acid or eucalyptol as oil phases, were applied to full-thickness excised human skin in Franz diffusion cells, while aqueous solutions (1 mL) containing minoxidil were used as controls. Minoxidil in the stratum corneum (SC), hair follicles, deeper skin layers, and flux through the skin over 24 h was determined, as well as minoxidil solubility in the formulations and in the SC. The nanoemulsions significantly enhanced the permeation of minoxidil through skin compared with control solutions. The eucalyptol formulations (NE) promoted minoxidil retention in the SC and deeper skin layers more than did the oleic acid formulations, while the oleic acid formulations (NO) gave the greatest hair follicle penetration. Minoxidil maximum flux enhancement was associated with increases in both minoxidil SC solubility and skin diffusivity in both nanoemulsion systems. The mechanism of enhancement appeared to be driven largely by increased diffusivity, rather than increased partitioning into the stratum corneum, supporting the concept of enhanced fluidity and disruption of stratum corneum lipids
Health Risk Associated with Some Trace and Some Heavy Metals Content of Harvested Rainwater in Yatta Area, Palestine
Rainwater is considered a dependable source for domestic purposes within rural areas
in Palestine. Harvested rainwater stored in cisterns is used to leverage deficits from municipal
water supplies. Harvested rainwater in areas surrounded with industrial and agricultural activities
is usually contaminated with heavy and trace metals. To study the effects of human exposure to
heavy and trace metals, 74 harvested rainwater samples of rain-fed cisterns were collected from
different localities in the Yatta area of Palestine in the months of January and February of 2016. The
water samples were analysed for Ca, Mg, Al, Fe, K, Na, Ag, Li, Co, Ba, Bi, Sr, Ga, V, Rb, Mo, Beand
Tl elements utilizing ICP-MS (inductively coupled plasma mass spectrometry). The selected trace
metals were found within the concentration limits of the acceptable values, in accordance with
WHO and Palestinian standards, except for K and Al, which were found above the allowed limits.
The potential risks of the selected trace metals on the health of the local residents, as well as the
possible sources of such heavy metals, were also studied. The Chronic daily intake (CDI) of each
metal and health risk indexes (HRI) were calculated for both adults and children residents. The
oral ingestion pathway was studied, including exposure via drinking water. The values for CDI
were found in the descending order of: Ca > Mg > Na > K > Sr > Fe > Al > Ba > Li > V > Rb > Ag
> Mo > Ga > Co > Bi > TI > Be. The values of HRI were below 1 for most of the selected heavy
metals, expect for Li for children, indicating potential health risk. The study also predicted that
the local residents have a higher chance of developing cancer in their lifetime, especially children,
with respect to the carcinogenic risk (CRing) values for Na, Mg, Al, Ba, K, Ca, Fe and Sr, which were
greater than standardized limits (>106). The rest of the selected elements were within the acceptable
limit in the five different studied locations. Furthermore, univariate, multivariate and statistical
analysis depending on one-way ANOVA, inter-metal correlation, cluster analysis (CA) and principal
component analysis (PCA) results revealed that geogenic and anthropogenic activities were major
sources of drinking water contamination by heavy metals in the Yatta area.The authors would like to thank Yatta municipality for helping in samples collection, the
households that facilitated our sampling, and Al-Quds University where water samples were analysed
HeatMapper: powerful combined visualization of gene expression profile correlations, genotypes, phenotypes and sample characteristics
BACKGROUND: Accurate interpretation of data obtained by unsupervised analysis of large scale expression profiling studies is currently frequently performed by visually combining sample-gene heatmaps and sample characteristics. This method is not optimal for comparing individual samples or groups of samples. Here, we describe an approach to visually integrate the results of unsupervised and supervised cluster analysis using a correlation plot and additional sample metadata. RESULTS: We have developed a tool called the HeatMapper that provides such visualizations in a dynamic and flexible manner and is available from . CONCLUSION: The HeatMapper allows an accessible and comprehensive visualization of the results of gene expression profiling and cluster analysis
Radium Isotopes Across the Arctic Ocean Show Time Scales of Water Mass Ventilation and Increasing Shelf Inputs
The first full transarctic section of 228Ra in surface waters measured during GEOTRACES cruises PS94 and HLY1502 (2015) shows a consistent distribution with maximum activities in the transpolar drift. Activities in the central Arctic have increased from 2007 through 2011 to 2015. The increased 228Ra input is attributed to stronger wave action on shelves resulting from a longer ice-free season. A concomitant decrease in the 228Th/228Ra ratio likely results from more rapid transit of surface waters depleted in 228Th by scavenging over the shelf. The 228Ra activities observed in intermediate waters
Reduced cardiovascular morbidity in patients with hemophilia:results of a 5-year multinational prospective study
Hemophilia is a congenital bleeding disorder caused by low levels of clotting factor VIII or IX. The life expectancy of people with hemophilia (PWH) has increased with the availability of clotting factor concentrates. At the same time, the incidence of cardiovascular disease (CVD) has increased; in retrospective studies, there are conflicting data regarding if, despite this increase, the incidence is still lower than in the general population. We prospectively compared the incidence of CVD in PWH vs the predicted incidence. This prospective, multicenter, observational study included adult PWH (aged >30 years) from The Netherlands and United Kingdom. They were followed up for a 5-year period, and CVD incidence was compared with a predicted event rate based on the QRISK2-2011 CVD risk model. The primary end point was the observed fatal and nonfatal CVD incidence after 5 years compared with the estimated events and in relation to severity of hemophilia. The study included 709 patients, of whom 687 (96.9%) completed 5 years' follow-up or reached an end point. For 108 patients, the QRISK score could not be calculated at inclusion. For the remaining 579, fewer CVD events were observed than predicted: 9 vs 24 (relative risk, 0.38; 95% confidence interval, 0.18-0.80; P 5 .01), corresponding with an absolute risk reduction of 2.4%. Severe hemophilia treated on demand had the highest risk reduction. There was no statistically significant relation between severity of hemophilia and incidence of CVD. In hemophilia, a lower-than-predicted CVD incidence was found, supporting the theory that hemophilia protects against CVD. The study is registered at www.clinicaltrials.gov as #NCT01303900.</p
Prognostically useful gene-expression profiles in acute myeloid leukemia
BACKGROUND: In patients with acute myeloid leukemia (AML) a combination of
methods must be used to classify the disease, make therapeutic decisions,
and determine the prognosis. However, this combined approach provides
correct therapeutic and prognostic information in only 50 percent of
cases. METHODS: We determined the gene-expression profiles in samples of
peripheral blood or bone marrow from 285 patients with AML using
Affymetrix U133A GeneChips containing approximately 13,000 unique genes or
expression-signature tags. Data analyses were carried out with Omniviz,
significance analysis of microarrays, and prediction analysis of
microarrays software. Statistical analyses were performed to determine the
prognostic significance of cases of AML with specific molecular
signatures. RESULTS: Unsupervised cluster analyses identified 16 groups of
patients with AML on the basis of molecular signatures. We identified the
genes that defined these clusters and determined the minimal numbers of
genes needed to identify prognostically important clusters with a high
degree of accuracy. The clustering was driven by the presence of
chromosomal lesions (e.g., t(8;21), t(15;17), and inv(16)), particular
genetic mutations (CEBPA), and abnormal oncogene expression (EVI1). We
identified several novel clusters, some consisting of specimens with
normal karyotypes. A unique cluster with a distinctive gene-expression
signature included cases of AML with a poor treatment outcome.
CONCLUSIONS: Gene-expression profiling allows a comprehensive
classification of AML that includes previously identified genetically
defined subgroups and a novel cluster with an adverse prognosis
Radium Isotopes across the Arctic Ocean show Time Scales of Water Mass Ventilation and Increasing Shelf Inputs
The first full transarctic section of 228Ra in surface waters measured during GEOTRACES cruises PS94 and HLY1502 (2015) shows a consistent distribution with maximum activities in the Transpolar Drift. Activities in the central Arctic have increased from 2007 through 2011 to 2015. The increased 228Ra input is attributed to stronger wave action on shelves resulting from a longer ice‐free season. A concomitant decrease in the 228Th/228Ra ratio likely results from more rapid transit of surface waters depleted in 228Th by scavenging over the shelf.
The 228Ra activities observed in intermediate waters (< 1500m) in the Amundsen Basin are explained by ventilation with shelf water on a time scale of about 15‐18 years, in good agreement with estimates based on SF6 and 129I/236U.
The 228Th excess below the mixed layer up to 1500m depth can complement 234Th and 210Po as tracers of export production, after correction for the inherent excess resulting from the similarity of 228Ra and 228Th decay times. We show with a Th/Ra profile model that the 228Th/228Ra ratio below 1500m is inappropriate for this purpose because it is a delicate balance between horizontal supply of 228Ra and vertical flux of particulate 228Th.
The accumulation of 226Ra in the deep Makarov Basin is not associated with an accumulation of Ba and can therefore be attributed to supply from decay of 230Th in the bottom sediment. We estimate a ventilation time of 480 years for the deep Makarov‐Canada Basin, in good agreement with previous estimates using other tracers
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