bluuebunny/crossref_metadata_2025 huggingface dataset:
Technique for intraoperatory harvesting of adipose derived stem cells: towards cell treatment of recalcitrant ulcers
Authors: Zollino Ilaria , Sibilla Maria Grazia , Gianesini Sergio , Menegatti Erica , Tessari Mirko , Malagoni Anna Maria
Published: August 2017

Successful wound and ulcer repair remains a major biomedical challenge in the 21st Century. Innovative and alternative treatment options have been investigated over the last decade and stem cells application has been suggested as a possible novel therapy for regenerative medicine. In particular, stem cells derived from adipose tissue have been attracting a lot of attention in recent years as an alternative to the use of cells derived from bone marrow. This technical note describes the procedure introduced by Coleman for intraoperatory harvesting of adipose derived-stem-cells and proposes a rationale for using it in difficult wound healing and recalcitrant ulcers.
The SPOC manual Chapter 2.2 grinding circuit sampling
Authors: Mular A , Larsen C , Laguitton D
Published: September 2017

This chapter of the SPOC manual presents a case study of sampling experiments conducted at the Brenda Mines grinding circuit for modelling purposes. The notions of flowsheet analysis, experimental design, sampling campaign planning and execution, and even
computing of circuit steady-state material balance, are covered in a practical context that provides a most useful supplement to other chapters in which each topic is expanded.
The SPOC manual Chapter 7 model calibration
Authors: Laguitton D , Flament F
Published: September 2017

Phenomenological or empirical models used to describe most mineral and coal process units require extensive calibrations at the development stage as well as for any subsequent update. The range of techniques required for such calibrations goes from simple linear
regression to computation-intensive, multivariable non-linear model calibrations. The SPOC software library contains programs to address these model calibration requirements which are reviewed through selected sample runs. References to the appropriate software are given
The SPOC manual Chapter 7.3 RTD and MIXERS computer programs
Authors: Laguitton D , Leung J , Flament F , Hodouin D , Spring R
Published: September 2017

The transport properties of material through various ore and coal processing units are important factors which control the performance of those units. This manual describes the basic tools for determining the flow pattern for a piece of equipment. The residence
time distribution is defined, as well as three approaches to represent it. Then, several experimental methods based on tracers are presented and compared. The FORTRAN programs used to process the tracer data are fully documented, as are the mathematics on which they are based. All the methods and
programs are illustrated with actual data from industrial grinding and flotation circuits. This manual is directed to plant process engineers. All the necessary definitions are given, and only limited mathematical ability is required to apply the methods and use the programs. For those more familiar
with process modelling, extended appendices give details of the mathematics. This should allow ongoing improvements and modifications to the packages as well as independent programming of the methods for users who want to have their own program in a language other than
FORTRAN.
Destress blasting at Campbell Red Lake mine
Authors: Makuch A , Neumann M , Hedley D G F , Blake W
Published: September 2017

Destress blasting is commonly used in rockburst-prone pillars in thin steeply-dipping orebodies. The purpose is to fracture the rock and reduce the stresses acting on the pillar. Since 1982, four destress blasts have been done in pillars at Campbell Red Lake
Mine, with varying degrees of success. In general a common-sense approach was used in the design of the destress blast. This report is divided into three parts. The first part explores the rock mechanics concepts of destressing. It attempts to identify the parameters which make for a successful
destress blast. The main conclusion is that the major purpose of destressing is to reduce the potential energy of the rock mass. This is achieved by fracturing the pillar and allowing the hanging wall and footwall to converge. The second part of the report describes the first three destress blasts
in cut-and-fill crown pillars and shrinkage boxhole pillars. The reasons for destressing, the design, instrumentation used and post-blast observations are documented. The fourth destress blast was extensively monitored and is described in the third part of the report. Computer modelling was also
undertaken to compare with the in situ measurement of stress and convergence.
Electrokinetics of samples treated by electrocoagulation methods - part 1. concentrated dispersions of clay particles
Authors: Angle C W , Donini J C
Published: September 2017

Electrocoagulation has been used for water treatment without a complete knowledge of the actual mechanism of operation. Process upsets occurring daily in a water treatment operation made it imperative to understand the actual mechanism of operation. The
contending mechanisms proposed in the earlier literature were charge neutralization and dipoledipole interaction explanation. In this study, an attempt was made to determine the actual mechanism of operation by studying the electrokinetics of highly concentrated model clay, and process clay
suspensions, both before and after electrocoagulation. Both electrokinetic sonic amplitude and microelectrophoresis techniques were used for measuring the charge on treated and untreated dispersions, together with controls. Scanning electron microscopy was used to determine whether aluminum ions
were released onto latex and process clays. Some insight into the actual mode of operation was achieved by qualitative experimental observations, electrolcinetic data, and analysis of aluminum-coated particles. In order to obtain further confirmation of a charge neutralization mechanism, studies
dilute dispersions are proposed whereby the 'kinetics' of the interactions are accounted for.
The role of coal preparation plant performance testing in improving clean coal recovery
Authors: Mikail M E , Salama A I A , Humeniuk O E
Published: September 2017

Performance testing of preparation plants is referred to as plant audit. It evaluates plant performance under normal operating conditions and is aimed at improving yield through knowledge of actual process performance and interactions between different processes
in a plant. This paper describes the program to evaluate the performance of several Canadian preparation plants. The performance test requires the planning of a sampling campaign that would include all circuits in the plant. Samples are analyzed to determine washing characteristics (screen and
float-sink), ash and per cent solids of feed and products of separation units in the plant. Performance characteristics are established based on analysis and material balance. Specific recommendations can then be made to improve recovery, and identify and explain potential causes of apparent
deficiencies. The objectives of the program are to reduce the cost of production by improving recovery of clean coal and, in turn, to reduce disposed tailings, establish baseline information on coal preparation plants performance in Canada, and define R&D work needed to optimize plant
operation.
Investigations of the applicability of magnetic resonance imaging methods to CANMET's research interests part two: results from PRI Bruker Biospec 3
Authors: MacConnachie C A , Lam W W
Published: September 2017

This report is part two of a three-part report on the status of the magnetic resonance imaging activity at WRC. Part two discusses in detail the results of the experiments carried out on the Bruker Biospec 3, 2.35 T/100 MHz spectrometer at Petroleum Recovery
Institute (PRI) in Calgary. The images and their analyses are presented. Conclusions on what types of experiments are feasible at PRI's imaging centre; the kind of information that can be learned from the experiments is outlined as well.
The environmental scanning electron microscope (ESEM) - theory and applications
Authors: Payette C
Published: September 2017

The environmental scanning electron microscope (ESEM) allows direct observation of specimens in their natural state, without the need for elaborate sample preparation techniques. Recent technical developments allow the detection of various signals generated by
the specimen, such as secondary and backscattered electrons, cathodoluminescence, and x-rays. Images are formed from these signals, either from individual signals (backscattered electron image) or from combinations of signals (secondary and backscattered electron images). X-ray microanalysis
(energy-dispersive and wavelength-dispersive) is possible, but there is a definite loss of spatial resolution, increasing with higher pressures in the specimen chamber due to interactions between the beam, the gas, and the specimen-generated signals.
Notes on the flowering and pollination of the endemic grassland Aloe reitzii var. reitzii (Asphodelaceae)
Authors: Symes Craig T.
Published: August 2017

Background: Aloe reitzii var. reitzii is a succulent with a restricted distribution in the montane grassland of eastern South Africa. It is a summer (late January–March) flowering succulent that grows on rocky outcrops at 1000 m–1600 m, and the conspicuous inflorescences suggest a pollination system focused towards birds.Objectives: To understand more about the pollination biology of A. reitzii var. reitzii.Methods: Nectar standing crop (flower volume and concentration) and the proportion of plants flowering were recorded. Camera traps and observations were used to record visitors to A. reitzii var. reitzii inflorescences.Results: Nectar volume was 36 μL ± 27 μL per flower (range 6 μL–93 μL; n = 27) and concentration was 16.5% ± 1.7% (range 13.5% – 19.5%). Camera trap observations, where 18.9% of all plants were observed flowering, recorded the three bird species Cape Weaver, Ploceus capensis, Malachite Sunbird, Nectarinia famosa and Greater Double-collared Sunbird, Cinnyris afer (60.4%, 27.1% and 12.5% of plant visits, respectively) visiting inflorescences.Conclusion: Because birds are important pollinators for many Aloe species, it is assumed that the bird species detected visiting A. reitzii var. reitzii are similarly important pollinators. At least 10 invertebrate species and sengi (Elephantulus sp.) were also recorded as visitors to flowers, but they may be less important pollinators than specialist and generalist avian nectarivores. This study provides further insight into the pollination biology of a diverse, and ecologically important, succulent genus in Africa.
Community health workers lensed through a South African backdrop of two peri-urban communities in KwaZulu-Natal
Authors: White Meghan S. , Govender Pragashnie , Lister Helga E.
Published: August 2017

Background: As the South African government re-engineers primary healthcare (PHC), the need for additional information on stakeholders involved in the process has emerged. Of these are community health workers (CHWs), who have been identified as central to PHC success.Objectives: To profile the current CHWs within KwaDabeka and Clermont in KwaZulu-Natal, to describe their roles and to explore the barriers and enablers influencing their service delivery.Method: A convergent mixed methods design was employed with a sample of CHWs with the use of a survey (n = 53) and two focus groups (n = 10) and semi-structured interviews with four ward councillors (n = 4). Data were analysed statistically and thematically.Results: The profile of CHWs reflected only women with a mixed age range and a majority of 59% who had not completed formal schooling. General work experience as a CHW varied. There were diverse opinions expressed towards the CHW role which related to their job title and identity, supervision, remuneration, growth pathways and psychological and emotional issues. Whilst the National Community Health Worker Profile Framework was established for the CHW programme, there are several factors lacking in the current CHW programme such as a formal growth pathway or formal training to align the CHWs with the National Qualifications Framework.Conclusion: The study findings are essential for the monitoring and evaluation as well as development and refinement of policies that will assist in ensuring adequate rollout of PHC with CHWs.
A rediscovery of the priesthood of believers in Ephesians 4:1–16 and its relevance for the Missio Dei and a biblical missional ecumenism
Authors: Lotter George , Van Aarde Timothy
Published: August 2017

This article is dedicated to Professor Sarel van der Merwe as missiologist and what he had done for the cause of the missio Dei in South Africa. The role of the laity in the missio Dei was one of the most significant developments followed by most church denominations. The priesthood of believers was the reformational perspective rediscovered by Martin Luther. The reformed tradition rediscovered the role of the laity in missions, which the Baptist church tradition has now developed most extensively in terms of missions. The Catholic Church has recognised the apostolicity of the laity in a decree called ‘Apostolicam Actuositatem’ at the Second Vatican Council in response to the crises of the church. The charismatics gave recognition to the role of the laity through the spiritual gifts of each believer. The role of the laity and of the priesthood of believers has its biblical precedent and foundation in 1 Peter 2:5, 9 and Ephesians 4:1–16. The contribution of Ephesians is that it provides the church with a missional mandate for the ordinary believer to participate in the missio Dei –, a mandate that has to be rediscovered in every age. The priesthood of believers provides an orientation for a biblical missional ecumenism.
Cathy’s mourning in Emily Brontë’s Wuthering Heights
Authors: Myburgh J. Albert
Published: August 2017

In Emily Brontë’s Wuthering Heights, illness and death cause characters to foresee, fear and react to other characters’ deaths. In this article, I explore the significance of Cathy’s anticipatory mourning of, and response to, the eventual actual deaths of her ailing father, Edgar, and her sickly cousin, Linton. Core 19th-century perspectives and fears relating to illness and death are both evident and contested in the representation of Cathy’s anxiety and suffering. I also investigate how Cathy’s grief is exacerbated by and affects the behaviour of other characters, notably Nelly, Linton, Heathcliff, Zillah and Hareton. The depiction of these characters’ responses to Cathy’s misery enriches their portrayal, implying that Cathy’s fear and grief are integral to both the novel’s plot and its character development.
Ectopic adrenocorticotropic hormone syndrome in a case of duodenal neuroendocrine tumor presenting with liver metastasis
Authors: Khare J , Daga S , Nalla S , Deb P
Published: August 2017

Ectopic adrenocorticotropic hormone (ACTH) syndrome is an uncommon disorder and comprises about 15% of all patients with Cushing's syndrome (CS). Duodenal carcinoids are rare, indolent tumors usually associated with a benign progression. We hereby report a rare case of CS resulting from ectopic ACTH secretion from a duodenal neuroendocrine tumor (NET) presenting with liver metastasis. A 37-year-old female presented with abdominal discomfort and dyspepsia of 1-month duration. Ultrasound abdomen suggested a well-defined hypoechoic lesion in the left lobe of the liver, suggestive of neoplasia. On clinical examination, she had Cushingoid features and persistent hypokalemia. Midnight ACTH and cortisol levels were grossly elevated at 1027 pg/ml (n < 46 pg/ml) and 87.56 μg/dl (n < 7.5 μg/ml), respectively. Both overnight and high-dose dexamethasone suppression test confirmed nonsuppressed cortisol levels - 86.04 and 84.42 μg/dl (n < 1.8 μg/ml), respectively. Magnetic resonance imaging brain showed a structurally normal pituitary gland. Computed tomography scan of the abdomen revealed hepatic lesion with bilateral adrenal enlargement. A diagnosis of ectopic ACTH-dependent CS was made. Intraoperatively, a duodenal lesion of 0.5 cm × 0.5 cm was identified alongside an 8 cm × 6 cm exophytic lesion in segment IV of the liver. Frozen section of the duodenal lesion was positive for NET. She underwent a Whipple's surgery, cholecystectomy, and left hepatic lobectomy. Postoperatively, she showed clinical and biochemical remission. Herewith, we report the third case of duodenal carcinoid tumor presenting as ectopic ACTH syndrome and the first with liver metastasis.
Molecular Composition of Particulate Matter Emissions from Dung and Brushwood Burning Household Cookstoves in Haryana, India
Authors: Fleming Lauren T. , Lin Peng , Laskin Alexander , Laskin Julia , Weltman Robert , Edwards Rufus D. , Arora Narendra K. , Yadav Ankit , Meinardi Simone , Blake Donald R. , Pillarisetti Ajay , Smith Kirk R. , Nizkorodov Sergey A.
Published: September 2017

Abstract. Emissions of airborne particles from biomass-burning are a significant source of black carbon (BC) and brown carbon (BrC) in rural areas of developing countries where biomass is the predominant energy source for cooking and heating. This study explores the molecular composition of organic particles from household cooking emissions, with a focus on identifying fuel-specific compounds and BrC chromophores. Traditional meals were prepared by a local cook with dung and brushwood-fueled cookstoves in a village of Palwal district, Haryana, India. The cooking events were carried out in a village kitchen while controlling for variables including stove type, fuel moisture content, and meal. The particulate matter (PM2.5) emissions were collected on filters, and then analyzed via nanospray desorption electrospray ionization/high resolution mass spectrometry (nano-DESI-HRMS) and high performance liquid chromatography/photodiode array/high resolution mass spectrometry (HPLC-PDA-HRMS) techniques. The nano-DESI-HRMS analysis provided an inventory of compounds present in the particle phase. Although several compounds observed in this study have been previously characterized using gas chromatography methods, a majority of species in nano-DESI spectra were newly observed biomass-burning compounds. Both the stove (chulha or angithi) and the fuel (brushwood or dung) affected the composition of organic particles. The geometric mean PM2.5 emissions factor and the molecular complexity of PM2.5 emissions increased in the following order: brushwood/chulha (4.9 ± 1.7 g kg-1 dry fuel, 93 compounds), dung/chulha (12.3 ± 2.5 g kg-1 dry fuel, 212 compounds), and dung/angithi (16.7 ± 6.7 g kg-1 dry fuel, 262 compounds). The lower limit for the mass absorption coefficient (MAC) at 365 nm and 405 nm for brushwood PM2.5 was 3.4 m2 g-1 and 1.8 m2 g-1, respectively, which was approximately a factor of two higher than that for dung PM2.5. The HPLC-PDA-HRMS analysis showed that, regardless of fuel type, the main chromophores were CxHyOz lignin fragments. The main chromophores accounting for the higher MAC values of brushwood PM2.5 were C8H10O3 (tentatively assigned syringol), possible nitrophenol species C8H9NO4, and C10H10O3 (tentatively assigned methoxycinnamic acid).
Analysis of ionospheric structure influences on residual ionospheric errors in GNSS radio occultation bending angles based on ray tracing simulations
Authors: Liu Congliang , Kirchengast Gottfried , Sun Yueqiang , Zhang Kefei , Norman Robert , Schwaerz Marc , Bai Weihua , Du Qifei , Li Ying
Published: August 2017

Abstract. The Global Navigation Satellite System (GNSS) radio occultation (RO) technique is widely used to observe the atmosphere for applications such as numerical weather prediction and global climate monitoring. The ionosphere is a major error source to RO at upper stratospheric altitudes and a linear dual-frequency bending angle correction is commonly used to remove the first-order ionospheric effect. However, the residual higher-order ionospheric error (RIE) can still be significant so that it needs to be further mitigated for high accuracy applications, especially from 30 km altitude upward where the RIE is most relevant compared to the decreasing magnitude of the atmospheric bending angle. In a previous study we quantified RIEs using an ensemble of about 700 quasi-realistic end-to-end simulated RO events, finding typical RIEs at the 0.1 to 0.5 μrad noise level, but were left with 26 exceptional events with anomalous RIEs at the 1 to 10 μrad level that remained unexplained. In this study, we focused on investigating the causes of the high RIE of these exceptional events, employing detailed along-raypath analyses of atmospheric and ionospheric refractivities, impact parameter changes, and bending angles and RIEs under asymmetric and symmetric ionospheric structures. We found that the main causes of the high RIEs are a combination of physics-based effects, where asymmetric ionospheric conditions play the primary role, more than the ionization level driven by solar activity, and technical ray tracer effects due to occasions of imperfect smoothness in ionospheric refractivity model derivatives. We also found that along-ray impact parameter variations of more than 10 to 20 m are well possible due to ionospheric asymmetries, and depending on prevailing horizontal refractivity gradients are positive or negative relative to the initial impact parameter at the GNSS transmitter. Furthermore, mesospheric RIEs are found generally higher than upper stratospheric ones, likely due to being closer in tangent point heights to the ionospheric E layer peaking near 105 km, which increases RIE vulnerability. In future we will further improve the along-ray modeling system to fully isolate technical from physics-based effects and to use it beyond this work for additional GNSS RO signal propagation studies.
Carbon isotopes of dissolved inorganic carbon reflect utilization of different carbon sources by microbial communities in two limestone aquifer assemblages
Authors: Nowak Martin E. , Schwab Valérie F. , Lazar Cassandre S. , Behrendt Thomas , Kohlhepp Bernd , Totsche Kai Uwe , Küsel Kirsten , Trumbore Susan E.
Published: August 2017

Abstract. Isotopes of dissolved inorganic carbon (DIC) are used to indicate both transit times and biogeochemical evolution of groundwaters. These signals can be complicated in carbonate aquifers, as both abiotic (i.e., carbonate equilibria) and biotic factors influence the δ13C and 14C of DIC. We applied a novel graphical method for tracking changes in the δ13C and 14C of DIC in two distinct aquifer complexes identified in the Hainich Critical Zone Exploratory (CZE), a platform to study how water transport links surface and shallow groundwaters in limestone and marlstone rocks in central Germany. For more quantitative estimates of contributions of different biotic and abiotic carbon sources to the DIC pool, we used the NETPATH geochemical modeling program, which accounts for changes in dissolved ions in addition to C isotopes. Although water residence times in the Hainich CZE aquifers based on hydrogeology are relatively short (years or less), DIC isotopes in the shallow, mostly anoxic, aquifer assemblage (HTU) were depleted in 14C compared to a deeper, oxic, aquifer complex (HTL). Carbon isotopes and chemical changes in the deeper HTL wells could be explained by interaction of recharge waters equilibrated with post-bomb 14C sources with carbonates. However, oxygen depletion and δ13C and 14C values of DIC below those expected from the processes of carbonate equilibrium alone indicate considerably different biogeochemical evolution of waters in the upper aquifer assemblage (HTU wells). Changes in 14C and 13C in the upper aquifer complexes result from a number of biotic and abiotic processes, including oxidation of 14C-depleted OM derived from recycled microbial carbon and sedimentary organic matter as well as water–rock interactions. The microbial pathways inferred from DIC isotope shifts and changes in water chemistry in the HTU wells were supported by comparison with in situ microbial community structure based on 16S rRNA analyses. Our findings demonstrate the large variation in the importance of biotic as well as abiotic controls on 13C and 14C of DIC in closely related aquifer assemblages. Further, they support the importance of subsurface-derived carbon sources like DIC for chemolithoautotrophic microorganisms as well as rock-derived organic matter for supporting heterotrophic groundwater microbial communities and indicate that even shallow aquifers have microbial communities that use a variety of subsurface-derived carbon sources.
REAL-TIME BLOB-WISE SUGAR BEETS VS WEEDS CLASSIFICATION FOR MONITORING FIELDS USING CONVOLUTIONAL NEURAL NETWORKS
Authors: Milioto A. , Lottes P. , Stachniss C.
Published: August 2017

Abstract. UAVs are becoming an important tool for field monitoring and precision farming. A prerequisite for observing and analyzing fields is the ability to identify crops and weeds from image data. In this paper, we address the problem of detecting the sugar beet plants and weeds in the field based solely on image data. We propose a system that combines vegetation detection and deep learning to obtain a high-quality classification of the vegetation in the field into value crops and weeds. We implemented and thoroughly evaluated our system on image data collected from different sugar beet fields and illustrate that our approach allows for accurately identifying the weeds on the field.
OBSTACLE DETECTION SYSTEM INVOLVING FUSION OF MULTIPLE SENSOR TECHNOLOGIES
Authors: Giannì C. , Balsi M. , Esposito S. , Fallavollita P.
Published: August 2017

Abstract. Obstacle detection is a fundamental task for Unmanned Aerial Vehicles (UAV) as a part of a Sense and Avoid system. In this study, we present a method of multi-sensor obstacle detection that demonstrated good results on different kind of obstacles. This method can be implemented on low-cost platforms involving a DSP or small FPGA. In this paper, we also present a study on the typical targets that can be tough to detect because of their characteristics of reflectivity, form factor, heterogeneity and show how data fusion can often overcome the limitations of each technology.
APPLICATION OF SENSOR FUSION TO IMPROVE UAV IMAGE CLASSIFICATION
Authors: Jabari S. , Fathollahi F. , Zhang Y.
Published: August 2017

Abstract. Image classification is one of the most important tasks of remote sensing projects including the ones that are based on using UAV images. Improving the quality of UAV images directly affects the classification results and can save a huge amount of time and effort in this area. In this study, we show that sensor fusion can improve image quality which results in increasing the accuracy of image classification. Here, we tested two sensor fusion configurations by using a Panchromatic (Pan) camera along with either a colour camera or a four-band multi-spectral (MS) camera. We use the Pan camera to benefit from its higher sensitivity and the colour or MS camera to benefit from its spectral properties. The resulting images are then compared to the ones acquired by a high resolution single Bayer-pattern colour camera (here referred to as HRC). We assessed the quality of the output images by performing image classification tests. The outputs prove that the proposed sensor fusion configurations can achieve higher accuracies compared to the images of the single Bayer-pattern colour camera. Therefore, incorporating a Pan camera on-board in the UAV missions and performing image fusion can help achieving higher quality images and accordingly higher accuracy classification results.
ASSESSING THE RELIABILITY AND THE ACCURACY OF ATTITUDE EXTRACTED FROM VISUAL ODOMETRY FOR LIDAR DATA GEOREFERENCING
Authors: Leroux B. , Cali J. , Verdun J. , Morel L. , He H.
Published: August 2017

Abstract. Airborne LiDAR systems require the use of Direct Georeferencing (DG) in order to compute the coordinates of the surveyed point in the mapping frame. An UAV platform does not derogate to this need, but its payload has to be lighter than this installed onboard so the manufacturer needs to find an alternative to heavy sensors and navigation systems. For the georeferencing of these data, a possible solution could be to replace the Inertial Measurement Unit (IMU) by a camera and record the optical flow. The different frames would then be processed thanks to photogrammetry so as to extract the External Orientation Parameters (EOP) and, therefore, the path of the camera. The major advantages of this method called Visual Odometry (VO) is low cost, no drifts IMU-induced, option for the use of Ground Control Points (GCPs) such as on airborne photogrammetry surveys. In this paper we shall present a test bench designed to assess the reliability and accuracy of the attitude estimated from VO outputs. The test bench consists of a trolley which embeds a GNSS receiver, an IMU sensor and a camera. The LiDAR is replaced by a tacheometer in order to survey the control points already known. We have also developped a methodology applied to this test bench for the calibration of the external parameters and the computation of the surveyed point coordinates. Several tests have revealed a difference about 2–3 centimeters between the control point coordinates measured and those already known.
BENDING THE DOMING EFFECT IN STRUCTURE FROM MOTION RECONSTRUCTIONS THROUGH BUNDLE ADJUSTMENT
Authors: Magri L. , Toldo R.
Published: August 2017

Abstract. Structure from Motion techniques provides low-cost and flexible methods that can be adopted in arial surveying to collect topographic data with accurate results. Nevertheless, the so-called “doming effect”, due to unfortunate acquisition conditions or unreliable modeling of radial distortion, has been recognized as a critical issue that disrupts the quality of the attained 3D reconstruction. In this paper we propose a novel method, that works effectively in the presence of a nearly flat soil, to tackle a posteriori the doming effect: an automatic ground detection method is used to capture the doming deformation flawing the reconstruction, which in turn is wrapped to the correct geometry by iteratively enforcing a planarity constraint through a Bundle Adjustment framework. Experiments on real word datasets demonstrate promising results.
UAVS TO ASSESS THE EVOLUTION OF EMBRYO DUNES
Authors: Taddia Y. , Corbau C. , Zambello E. , Russo V. , Simeoni U. , Russo P. , Pellegrinelli A.
Published: August 2017

Abstract. The balance of a coastal environment is particularly complex: the continuous formation of dunes, their destruction as a result of violent storms, the growth of vegetation and the consequent growth of the dunes themselves are phenomena that significantly affect this balance. This work presents an approach to the long-term monitoring of a complex dune system by means of Unmanned Aerial Vehicles (UAVs). Four different surveys were carried out between November 2015 and November 2016. Aerial photogrammetric data were acquired during flights by a DJI Phantom 2 and a DJI Phantom 3 with cameras in a nadiral arrangement. GNSS receivers in Network Real Time Kinematic (NRTK) mode were used to frame models in the European Terrestrial Reference System. Processing of the captured images consisted in reconstruction of a three-dimensional model using the principles of Structure from Motion (SfM). Particular care was necessary due to the vegetation: filtering of the dense cloud, mainly based on slope detection, was performed to minimize this issue. Final products of the SfM approach were represented by Digital Elevation Models (DEMs) of the sandy coastal environment. Each model was validated by comparison through specially surveyed points. Other analyses were also performed, such as cross sections and computing elevation variations over time. The use of digital photogrammetry by UAVs is particularly reliable: fast acquisition of the images, reconstruction of high-density point clouds, high resolution of final elevation models, as well as flexibility, low cost and accuracy comparable with other available techniques.
AKWĒKRÃWAIHKU NÃHÃ ROWASKUZE
Authors: Xerente Silvino Sirnãwẽ
Published: August 2017

ĨSIMÃZUSZE KTURÊKãhã hâisuka ĩt kakuĩkre tô wakrãiwaihku nã kãtô romwaihku aimõ sissumsnã krhêmba mnõ nmẽ, wanĩm akwẽ nõrĩ, kãtô akwẽ wadi aimõ tkrê samãrwaihku psê mnõ pibumã. Ahâmre tô Warã, are tâkãnnĩ tô rowahtuze taimõWarã nõkwakrê wamã krsimãsa. Warã wa tô wawẽ nõrĩ aire kbure rowahduwanĩm aikte nõrai mã tkrê krtmã rowahtukw, are tãkãnnĩ tô rowahtuzemhawi tet aimõ rowahtukwai nõrĩ kbure wanĩm aikte nõrai mã kbureromkmãdâ tkrê tmã rowahtukw. Aikde tô srõwa hawi za dure rowahdu têwaihku nnãkrat, tapari za rowahtuzem hawi aimõ rowahdu tê kmã sizusmnõ pibumã, tahawi za wnĩm aikte nõrĩ wanĩm romkmãdâ tkrê sawikw, aredure krmã simãzukw wat rmẽ kõ pibumã.Damrmẽ ĩkuitabi: Warã, wakrãiwaihkuze, romwaihku, wawẽ nõrĩ,rowahtuze, aikde.
EDUCAÇÃO KUPẼ E COSMOLOGIA PANHĨ: DIFÍCIL RELAÇÃO?
Authors: Apinajé Júlio Kamêr Ribeiro
Published: August 2017

PRĨHÃ KWỲ JARẼNHPẽr hã kagàja kôt kagàjahkrexwỳnhjaja kot mẽpahte amnhĩ nhĩpêx nẽpaxàhpumunh tãnopxar nẽ kôt hakop. Nẽ kupẽ xàhpumunh xàmnênhkutã paxihtỳx nẽ kutã kãm mẽpahte amnhĩ nhĩpêx nẽ pajamaxpẽrho amnhĩ rĩt kamã paxihtỳx nẽ. Pumẽ ma kupẽ xàhpumunh kaêx mãamnhĩ jagjê nẽ paxihtỳx rãhã nẽ paxirerek kêt nẽ. Na pumẽ kormã mẽkuxwar kagàjahkrexàja kôt pajamaxpẽr o mõ nẽ prĩhã ri akop. Kêr pumẽpajamaxpẽr mẽ pahte amnhĩ nhĩpêx kayr o mõ. Mẽh Panhĩjê xàhpumunhnẽ mãanẽn kupẽ xàhpumunhja. Ixkapẽrja kôt “estado” tãm amaxpẽr nẽ mẽ paxujahkreja pumunh nẽ tanhmã harẽnh to kêt. Kot mẽmoj punuj tanhmã kute nhũm kormã mẽ pajarẽ. Tã paxàhpumunhja piitã kamã ãm nhãm ri axpẽn mã pakujate.Kagà pàrkrax: Panhĩ xujahkre nẽ papxà, Kagà pumunh, kupẽ xàhpumunh.
HISTÓRIA DA ORTOGRAFIA KARAJÁ: LUTA PELA SOBREVIVÊNCIA DA LÍNGUA KARAJÁ
Authors: Lariwana Leandro Karajá
Published: August 2017

RYBÈNA BUTÈKaa aõmysỹdỹỹna-ò rèòryrènyra timybo iny rybè rartidỹỹmyhỹrebdèdỹỹnana. Tuu rybè hèka aõni awi rare raerytyhykremy irtidỹỹ irumy inyrybè rarekèmy, kièmy dori irtidỹỹki tiièmy roimy rarekre irèrbi tuu lobxirỹikremy, tai dori irè rybè raruti rỹityhykre irbi tahè tyyrtidu, tiirtidỹỹdumahãdu rièrymy rỹirakremy timybo rybè rèlèmyhỹre bdèdỹỹnana, iwsèmyriwinymy rỹirakre inatxi-my rybèna.Rybèna wèryna: Inyrybè. Rybèrtidỹỹ. Rybèirumyrỹikè.
PROCESSOS E ORNAMENTOS: COMO FORMAR UMA NOVA HÕKREPÔJ (CANTORA) ENTRE OS RÀMKÔKAMẼKRA/CANELA
Authors: Soares Ligia Raquel Rodrigues , Canela Ricardo Kutokre
Published: August 2017

RESUMOApresentam-se reflexões sobre o processo de ensino-aprendizagem presente na escolha e na formação de uma nova cantora entre os Ràmkôkamẽkra/ Canela.Palavras-chave: Cantos. Aprendizagem. Etnomusicologia.
XEKAKOPÃWA E XETANOGÃWA: UM PROCESSO DE CONSTRUÇÃO DA SABEDORIA NO ESPAÇO SOCIOCULTURAL APYÃWA
Authors: Tapirapé Nivaldo Korira’i
Published: August 2017

RESUMOEste artigo demonstra o processo de construção de conhecimento epreparação de ser Apyãwa para a vida da comunidade em seu próprio espaço sociocultural. Trata de uma educação cultural complexa e admirada pelos membros participantes, porém ainda pouco conhecida pelo público geral. A pesquisa aborda duas noções distintas: Xekakopãwa e Xetanogãwa. O artigo tenta responder quais são seus significados e suas diferenças. Busca, assim, uma melhor definição desses termos tão importantes para o processo vital dos Apyãwa.Palavras-chave: Povo Apyãwa. Sabedoria e vida Apyãwa. Definição deconduta, caráter e comportamento de ser Apyãwa.
HISTÓRIAS APYÃWA
Authors: Tapirapé Gilson Ipaxi’awyga , Tapirapé Yrywaxã , Tapirapé Ikatopawyga Daniela , Tapirapé Koxawiri , Tapirapé Koxawiri , Tapirapé Júlio César Tawy’i , Tapirapé Josimar Ieremy’i , Tapirapé Arapaxigi , Tapirapé Klebson Awararawoo’i , Tapirapé Koxamare’i , Tapirapé Kaxowari’i , Tapirapé Xaripe’i , Borges Mônica Veloso
Published: August 2017

APRESENTAÇÃOEsta coletânea de histórias Apyãwa foi feita pelos/as bolsistasda Ação ‘Saberes Indígenas na Escola’, da Rede UFG (UniversidadeFederal de Goiás). O estudo partiu de uma reflexão sobre essa Açãocomo instrumento de análise dos trabalhos dos/as bolsistas. Trata-sede uma investigação realizada com um grupo de professores/as dasséries iniciais do Ensino Fundamental, participantes dessa Ação, eem contexto de trabalho.  O objetivo deste trabalho é fazer uma relação entre essa Ação e a nossa cultura. Diante desse olhar, analisamos como esses saberes são difundidos entre os Apyãwa. A pesquisa sobre as histórias foi realizada pelos/as bolsistas em várias aldeias. O trabalho de pesquisa foi o central, pois ele propiciou a vivência e a compreensão das práticas cotidianas dos Apyãwa. Sem que isso acontecesse, seria dificilmente fortalecida a cultura que estava sendo menos movimentada. Hoje se vê o movimento constante na realidade vivida a partir do nosso trabalho. Assim, é necessário que, desde cedo, os/as jovens aprendam a valorizar sua própria individualidade, inclusive, respeitar os valores da comunidade. Nesse sentido, a importância de conversas sobre as histórias Apyãwa pode ajudar a mostrar ao/à jovem de hoje que somos capazes de envolver os/as nossos/as jovens levando-os/as de fato à prática. Para que essas tarefas possam ser realizadas maisprofundamente, óbvio que é preciso um ambiente plural e intenso dediscussão e reflexão sobre os significados da cultura nativa Apyãwa. Diante dessa preocupação é que trabalhamos sobre as histórias.Acreditamos que as respostas foram encontradas. Nós,autores/as desta obra, temos a expectativa de que ela possa ser ummeio acessível à comunidade para ler o mundo Apyãwa. Queremos que essa coletânea contribua para responder muitosdesafios que hoje enfrentamos. Tão importante quanto compreenderé saber como podemos atuar no mundo em que vivemos.Para nós, autores/as, é preciso nos ajudar a compreender einterpretar o sistema Apyãwa em que vivemos. Para isso neste trabalhomostramos que os conhecimentos não estão separados por disciplinas. Também o foco dessa coletânea é aprender e ampliar os nossos conhecimentos e saberes, ao mesmo tempo respeitando acoexistência da nossa cultura. Assim fizemos o trabalho a partir devárias discussões de ideias e reflexões em prol dos nossos valores. Pesquisadores/as Tapirapé da Ação ‘Saberes Indígenas na Escola’
The Relationship between Motivation, Organisational Commitment and Competence with Job Satisfaction and Lecturers Performance
Authors: Nasir M. Jamal Abdul , Wiyono Bambang Budi , Supriyono . , Supriyanto Achmad
Published: September 2017

The objective of this research is to find out a direct and an indirect relationship between motivation, organisational commitment, and lecturers competence and job satisfaction and lecturers performance. This was non-experimental research using a quantitative approach with ex-post facto designs. Hypotheses of this research aim to prove the relationship between variables. The data were collected by using questionnaire distributed to the randomly-chosen respondents and analyzed using Partial Least Square-Structural Equation Modeling (PLS-SEM) method. The conclusion of the modeling analysis result of these five variables are: (1) lecturers motivation has not a direct relationship with lecturers performance; (2) lecturers commitment has an indirect relationship with lecturers performance; (3) both exogenous variables (lecturers motivation and commitment) need intervening variable (job satisfaction) to be proven to be related to the lecturers performance; and (4) it is only lecturers competence variable having a direct relationship with lecturers performance even though without passing through mediation and lecturers job satisfaction variable.
Meta-Analysis of microRNAs as Potential Biomarkers for Detecting Esophageal Carcinoma in Asian Populations
Authors: Li Mei , Wu Fei , Ji Yu , Yang Lan , Li Feng
Published: September 2017

Background

An Increasing number of studies in the literature have shown that microRNAs (miRNAs) can be used as early diagnostic markers for esophageal carcinoma (EC), but their conclusions remain controversial. Hence, we performed this meta-analysis to evaluate the diagnostic accuracy of using miRNAs in EC and to provide an experimental basis for early diagnosis of the disease.

Methods

This meta-analysis included 39 Asian studies from 18 articles, which covered 3,708 EC patients and 2,689 healthy controls. We used a bivariate random-effects model, the chi-square test and the I2 test to assess sensitivity and heterogeneity.

Results

Pooled sensitivity, specificity, positive likelihood ratio, negative likelihood ratio and diagnostic odds ratio of miRNAs for diagnosis of EC in Asians reached 0.798, 0.785, 3.705, 0.257 and 14.391, respectively. Additionally, the area under the summary receiver operating characteristic curve was 0.86. Subgroup analysis based on research country (China vs. Japan), sample types (plasma vs. serum) and miRNAs (single vs. multiple; singly reported miRNAs vs. repeatedly reported miRNAs) showed no significant difference in accuracy of diagnosis for each subgroup.

Conclusions

MiRNAs can distinguish EC patients from healthy controls. Blood-based miRNAs have better diagnostic value in detecting EC than saliva-based miRNAs, whereas both serum and plasma are recommended for clinical specimens for miRNA detection.
Preparation, bioactivity and mechanism of nano-hydroxyapatite/sodium alginate/chitosan bone repair material
Authors: Liao Jianguo , Li Yanqun , Li Haiyan , Liu Jingxian , Xie Yufen , Wang Jianping , Zhang Yongxiang
Published: September 2017

Background:

As the major inorganic component of natural bone, nano-hydroxyapatite (n-HA) on its own is limited in its use in bone repair, due to its brittleness. Chitosan (CS) and sodium alginate (SAL) are used to reduce its brittleness and tendency to degradation. However, the compressive strength of the composite is still low, and its biological performance needs further study.

Methods:

Nano-hydroxyapatite/sodium alginate/chitosan (n-HA/SAL/CS) composite was prepared via an in situ synthesis method. Further, we prepared the n-HA/SAL/CS self-setting bone repair material by mixing n-HA/SAL/CS powder with a curing liquid (20 wt.% citric acid). In addition, the in vitro bioactivity and cell cytotoxicity were also explored.

Results:

Transmission electron microscopy photos revealed that the n-HA crystals were uniformly distributed throughout the polymer matrix. Infrared IR spectroscopy indicated that the HA interacted with the COO− of SAL and NH2− of CS. The compressive strength of the n-HA/SAL/CS bone cement was 34.3 MPa and matched the demands of weight-bearing bones. Soaking in vitro in simulated body fluid demonstrated that the composite material had reasonably good bioactivity, while cytotoxicity tests indicated that the n-HA/SAL/CS cement could promote cell proliferation and was biocompatible.

Conclusions:

Compressive strength of n-HA/SAL/CS can satisfy the needs of cancellous bone, and in vitro bioactivity and cytotoxicity tests results indicated that the n-HA/SAL/CS composite could act as an optimal bone repair material.
Uma Análise da Dimensão de Governança Corporativa nas Empresas Listadas no ISE 2014 da BM&FBovespa
Authors: Fávero Jéferson Deleon
Published: September 2017

As empresas listadas no Índice de Sustentabilidade Empresarial – ISE se destacam pelo enfoque em sustentabilidade, o que atrai investidores por obterem maior confiança nas informações divulgadas. Nesta direção, as melhores práticas de governança corporativa do IBGC são fundamentais por garantir a longevidade e sustentabilidade das organizações. Esta pesquisa tem por objetivos analisar as práticas de governança corporativa das empresas listadas no ISE de 2014 da BM&FBOVESPA em relação às recomendações do IBGC e compará-las com a participação das empresas no primeiro quadrimestre do ISE de 2014. Como método, utilizou-se a pesquisa quantitativa descritiva, com a pesquisa documental na coleta de dados. Foram analisados 22 questionários divulgados das 40 empresas listadas na carteira do ISE 2014, na dimensão governança corporativa. Utilizou-se dos testes estatísticos descritivos, correlação e regressão linear no software SPSS for windows. Quanto aos resultados, verificou-se a aderência das melhores práticas de governança corporativa sugeridas pelo IBGC (H1), mas a utilização das melhores práticas de governança corporativa não condicionam as empresas à melhor participação no ISE (H2).
Relação da Teoria da Sinalização com o Desempenho das Empresas a partir dos seus Indicadores de Performance de Divulgação Voluntária
Authors: Janiszewski Vanessa Janiszewski , Carrascoso Lívia Albuquerque , Felix Júnior Luiz Antonio , Lagioia Umbelina Cravo Teixeira , Oliveira Marina Fidelis Jerônimo
Published: September 2017

Este estudo objetivou identificar a presença de mecanismos de sinalização no mercado brasileiro, por meio da divulgação de informações nos demonstrativos financeiros anuais.  Para alcançar este objetivo foi desenvolvida inicialmente a análise descritiva dos dados, avaliando o nível de divulgação de índices voluntários incrementais e posteriormente analisou-se os dados coletados, por meio do software Gnu Regression, Econometrics and Time-series Libray (gretL 1.9.92), estimando-se um  modelo de análise de regressão múltipla para identificar a relação entre o percentual da quantidade de indicadores de performance incrementais com variação percentual das variáveis independentes. Como resultados da pesquisa, observou-se um baixo nível de divulgação de índices voluntários incrementais, apresentando um percentual médio de 19% de divulgação, e atingindo um nível máximo de 64% de índices de divulgação incremental voluntária. A pesquisa encontrou uma forte relação dos Indicadores de Divulgação Voluntária com a variação da Rentabilidade e do Tamanho das empresas, em contraste, no que se refere aos níveis de risco não houve associação significativa. O estudo provou que empresas tendem a sinalizar através de seus indicadores de performance voluntários quando ocorre uma queda no desempenho. Assim, através dos resultados do estudo, verificou-se que empresas divulgam informação na busca reduzir a assimetria informacional para convencer aos seus usuários externos que estão agindo de forma otimizada. Palavras - chave: Divulgação. Performance. Sinalização.
O sistema interamericano de direitos humanos e a proteção dos direitos sexuais e reprodutivos
Authors: Wermuth Maiquel Angelo Dezordi , Ghisleni Pâmela Copetti
Published: September 2017

A contemporaneidade inaugurou novas formas de ser e estar no mundo, emprestando especial relevância às experiências concretas dos sujeitos, recusando a igualdade formal e abstrata típica da Modernidade. Nesse contexto de reconhecimento de diferenças e visibilização de demandas identitárias, o caminhar rumo à concretização de direitos humanos passa, necessariamente, pela dimensão da sexualidade e do direito de (não) reprodução. Com isso, categorias como família, casamento, sexo, afeto e desejo são reiteradamente questionadas (e ressignificadas). Quando o direito doméstico não responde adequadamente às demandas que lhe são submetidas, instituições como o Sistema Interamericano de Direitos Humanos (SIDH) revelam-se fundamentais no resgate do ideal universal de direitos humanos, atento às particularidades regionais. Portanto, este artigo trata, empregando o método hipotético-dedutivo, dos direitos sexuais e reprodutivos no direito internacional dos direitos humanos, a partir da análise de casos emblemáticos processados no âmbito do SIDH.
História de usucapião em terras devolutas: percepções oferecidas por uma obra jurídica de 1943
Authors: Grande Júnior Cláudio
Published: September 2017

Resenha da obra Terras Devolutas e Prescrição, de Carlos Castilho Cabral, publicada em 1943.