Land Use Dynamics of the Fast-Growing Shanghai Metropolis, China (1979–2008) and its Implications for Land Use and Urban Planning Policy

Through the integrated approach of remote sensing and geographic information system (GIS) techniques, four Landsat TM/ETM+ imagery acquired during 1979 and 2008 were used to quantitatively characterize the patterns of land use and land cover change (LULC) and urban sprawl in the fast-growing Shanghai Metropolis, China. Results showed that, the urban/built-up area grew on average by 4,242.06 ha yr−1. Bare land grew by 1,594.66 ha yr−1 on average. In contrast, cropland decreased by 3,286.26 ha yr−1 on average, followed by forest and shrub, water, and tidal land, which decreased by 1,331.33 ha yr−1, 903.43 ha yr−1, and 315.72 ha yr−1 on average, respectively. As a result, during 1979 and 2008 approximately 83.83% of the newly urban/built-up land was converted from cropland (67.35%), forest and shrub (9.12%), water (4.80%), and tidal land (2.19%). Another significant change was the continuous increase in regular residents, which played a very important role in contributing to local population growth and increase in urban/built-up land. This can be explained with this city’s huge demand for investment and qualified labor since the latest industrial transformation. Moreover, with a decrease in cropland, the proportion of population engaged in farming decreased 13.84%. Therefore, significant socio-economic transformation occurred, and this would lead to new demand for land resources. However, due to very scarce land resources and overload of population in Shanghai, the drive to achieve economic goals at the loss of cropland, water, and the other lands is not sustainable. Future urban planning policy aiming at ensuring a win-win balance between sustainable land use and economic growth is urgently needed

Metal-free electrocatalytic hydrogen oxidation using frustrated Lewis pairs and carbon-based Lewis acids

Whilst hydrogen is a potentially clean fuel for energy storage and utilisation technologies, its conversion to electricity comes at a high energetic cost. This demands the use of rare and expensive precious metal electrocatalysts. Electrochemical-frustrated Lewis pairs offer a metal-free, CO tolerant pathway to the electrocatalysis of hydrogen oxidation. They function by combining the hydrogen-activating ability of frustrated Lewis pairs (FLPs) with electrochemical oxidation of the resultant hydride. Here we present an electrochemical–FLP approach that utilises two different Lewis acids – a carbon-based N-methylacridinium cation that possesses excellent electrochemical attributes, and a borane that exhibits fast hydrogen cleavage kinetics and functions as a “hydride shuttle”. This synergistic interaction provides a system that is electrocatalytic with respect to the carbon-based Lewis acid, decreases the required potential for hydrogen oxidation by 1 V, and can be recycled multiple times

“Working the System”—British American Tobacco's Influence on the European Union Treaty and Its Implications for Policy: An Analysis of Internal Tobacco Industry Documents

Katherine Smith and colleagues investigate the ways in which British American Tobacco influenced the European Union Treaty so that new EU policies advance the interests of major corporations, including those that produce products damaging to health

Language and modern human origins

The evolution of anatomically modern humans is frequently linked to the development of complex, symbolically based language. Language, functioning as a system of cognition and communication, is suggested to be the key behavior in later human evolution that isolated modern humans from their ancestors. Alternatively, other researchers view complex language as a much earlier hominid capacity, unrelated to the origin of anatomically modern Homo sapiens . The validity of either perspective is contingent upon how language is defined and how it can be identified in the paleoanthropological record. In this analysis, language is defined as a system with external aspects relating to speech production and internal aspects involving cognition and symbolism. The hypothesis that complex language was instrumental in modern human origins is then tested using data from the paleontological and archaeological records on brain volume and structure, vocal tract form, faunal assemblage composition, intra-site diversification, burial treatment, ornamentation and art. No data are found to support linking the origin of modern humans with the origin of complex language. Specifically, there are no data suggesting any major qualitative changes in language abilities corresponding with the 200,000-100,000 BP dates for modern Homo sapiens origins proposed by single origin models or the 40,000-30,000 BP period proposed as the time for the appearance of modern Homo sapiens in Western Europe. Instead, there appears to be archaeological and paleontological evidence for complex language capabilities beginning much earlier, with the evolution of the genus Homo . © 1993 Wiley-Liss, Inc.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/37660/1/1330360607_ftp.pd

Long-term hypervitaminosis D-induced hypercalcaemia treated with glucocorticoids and bisphosphonates.

Hypercalcaemia is a common diagnosis with the majority of cases resulting from hyperparathyroidism or malignancy. We report a rare case of persistent symptomatic hypervitaminosis D-induced hypercalcaemia in an individual taking 50 000 IU of vitamin D supplement daily for several months following a diagnosis of vitamin D deficiency. His hypercalcaemia was initially treated with calcitonin and intravenous fluids, but due to recurrent symptomatic hypercalcaemia after discharge, additional treatment with glucocorticoids and bisphosphonates was warranted during his second admission. The pathophysiology of hypercalcaemia from vitamin D intoxication results from the long-term effects of vitamin D storage in adipose tissue. In the present case, we discuss this pathophysiology and treatment approaches in the context of increasing awareness of and testing for vitamin D deficiency, and growing access to over-the-counter supplements

IPASS These Patients To You

Quality, standardized sign-out between medical providers is integral to patient safety on an inpatient service. It has become increasingly important with restrictions to resident work hours. The IPASS handoff structure (i.e., illness severity, patient summary, action items, situational awareness and contingency planning, synthesis by receiver) has previously been established to reduce verbal and written miscommunications and errors when used and implemented within an education bundle (Sectish et al, Pediatrics 2011). Our aim was to utilize the IPASS structure to standardize the written handoff process between day and night teams in the internal medicine residency. We performed seven PDSA cycles. The first PDSA cycle was sending an email to the interns on a single team explaining IPASS and how to use it. Uptake was the main barrier with the interns reporting it was burdensome. Handoffs were scored on a numerical scale correlated to incomplete, partially complete and complete. During the second cycle the resident on a single team interactively provided ongoing education on IPASS. The interns were more receptive to implementation in this cycle and furthermore the sign-outs were more complete (19% improvement). The next PDSA was to explore the impact of IPASS compared to the traditional handoff method on the night float interns, who completed a survey. The night float interns did not notice a large difference between traditional method and IPASS. Our next step was exploring resident uptake through asking two residents on different teams to implement IPASS. They received an email explaining IPASS and were asked to incorporate it into handoff of all new patients to the team. They successfully passed this message onto their interns. However, night float reported it was confusing to have mixed formats on the same team. We next attempted to implement it into the electronic system to reduce barriers to implementation but found this was not readily possible in discussion with IT. Next, in an effort to further justify IPASS, we completed another PDSA cycle of timing verbal handoff which averaged approximately 1 minute per patient. The last completed cycle was implementation of IPASS on an entire team with night float feedback which garnered good responses from the program. In conclusion, these results are promising for the uptake of the validated IPASS sign-out format however implementation into current workflow remains the greatest barrier. Future work is focused on IT incorporation for IPASS

Large prepatellar glomangioma: A case report

Introduction: Glomangiomas are rare, benign tumors derived from the glomus body, typically presenting with the classic triad of pain, tenderness to palpation, and hypersensitivity to cold. Most commonly they present as a solitary lesion in the extremities, especially subungual, but they may present elsewhere. Presentation of case: We describe the case of a large (64 mm × 59 mm × 41 mm) glomangioma on the anteroinferior aspect of a healthy 49 year old male’s knee. Symptoms included constant throbbing pain with intermittent stabbing sensations localized to the mass. The mass was evaluated first by magnetic resonance (MR) imaging and then by histopathology following excision. Discussion: Although rare, clinical diagnosis of glomangiomas may be sufficient in typical cases, however in atypical cases, like the one discussed here, further evaluation is often necessary. Here MR findings were suggestive of a glomangioma with low to intermediate signal strength on T1 and mixed signal strength on T2. Intravenous gadolinium infusion demonstrated marked heterogeneous enhancement of the lesion, as well as serpiginous vascular malformations surrounding the lesion. Histopathology following excision confirmed a benign glomangioma depicting monomorphic small, round eosinophilic cells with minimal atypia which stained positive for smooth muscle actin, and negative for cytokeratin, S-100 and CK-34 via immunohistochemistry. Conclusion: The following case report details an atypical presentation of a benign glomangioma anterior to the knee in a patient experiencing chronic minor trauma to the area. Diagnosis was suggested by clinical presentation and MR imaging, and was confirmed histologically