scholarly journals Correlations between morphology and ultrasound exam in cases with nasal and paranasal sinuses pathology

2015 ◽  
Vol 5 (19) ◽  
pp. 167-172
Author(s):  
Mihai Dumitru ◽  
Daniel Tweedie ◽  
Ion Anghel ◽  
Romica Cergan ◽  
Codrut Sarafoleanu ◽  
...  
Keyword(s):  
Paranasal Sinuses ◽  
Cost Efficiency ◽  
Emergency Departments ◽  
Ultrasound Examination ◽  
Small Scale ◽  
Reducing Costs ◽  
To Receive ◽  
Sinus Tumor ◽  
Conventional Radiology ◽  
Serial Examination

Abstract BACKGROUND. Ultrasonography has been used in rhinology for diagnosing trauma lesions (fractures, hemosinus), second opinion in tumoral pathology, screening for sinusitis, but on a small scale and with future prospects of cost efficiency. OBJECTIVE. We hope to grow awareness of the possible use of ultrasound in screening for nasal and paranasal sinuses pathology at the level of ENT emergency departments. MATERIAL AND METHODS. We describe the technique for ultrasound examination of this region, emphasizing the need for a profound anatomical knowledge characteristic for ENT specialists. Any specialist having access to an ultrasound machine is encouraged to experiment with this imaging procedure. Two cases benefited from the use of ultrasonography in order to receive a better management and a swift treatment. One case presented with a maxillary sinus tumor and another with a paranasal tumor neighbouring the orbit. CONCLUSION. Ultrasonography of nasal and paranasal sinuses permits serial examination without irradiating the patient; it could be implemented as an addition to FAST-like protocols at the level of emergency departments in order to screen for occult head and neck pathology prior to conventional radiology and CT imaging and thus reducing costs

Leslie Burrowes: A Young Dancer in Dresden and London, 1930–34

2010 ◽  
Vol 28 (2) ◽  
pp. 153-178 ◽  
Author(s):  
Larraine Nicholas
Keyword(s):  
Modern Dance ◽  
Small Scale ◽  
Cultural Environment ◽  
Home Studio ◽  
To Receive

Leslie Burrowes (1908–1985) was the first British dancer to receive the full diploma of the Wigman School in Dresden and subsequently became Wigman's official UK representative. The letters she wrote to her benefactor, Dorothy Elmhirst, with the addition of my commentary and annotations, provide a lens through which to view the School as she experienced it. Her return to London brought her into a quite different cultural environment. I argue that she energetically launched her career, performing and teaching in her new style and contesting what she considered to be false charges against modern dance. But it appears that, by the end of this period, she had adjusted her expectations, away from solo theatrical recitals (in the Wigman mode) and more towards the education of children and students, and a small-scale but intense programme centred on her home studio.

scholarly journals Observing Plumes and Overturning Cells with a New Coastal Bottom Drifter

2018 ◽  
Vol 35 (8) ◽  
pp. 1675-1686 ◽  
Author(s):  
Lena M. Schulze Chretien ◽  
Kevin Speer
Keyword(s):  
Ocean Circulation ◽  
Small Scale ◽  
Coastal Environments ◽  
Constant Depth ◽  
Physical Processes ◽  
Apalachicola Bay ◽  
Local Topography ◽  
Tracking Device ◽  
To Receive ◽  
Drifter Trajectory

AbstractA new platform, the Coastal Bottom Drifter, was designed and built to observe near-bottom environments in coastal regions. It is capable of observing properties by drifting near the bottom with a prescribed clearance or at a constant depth of up to 300 m. The platform can observe physical and biochemical parameters, such as temperature, salinity, oxygen, and velocities, and has the capacity to carry additional sensors to measure, for example, pH, turbidity, and nutrients. In addition, it can profile to the surface at chosen intervals and can be deployed for days or up to several months. The integrated Iridium communication allows the user to receive positions and data while the platform is surfaced, as well as send new missions to the instrument. The use of an acoustic bottom-tracking device allows the construction of a drifter trajectory while providing information about ocean circulation. Additionally, the ADCP provides information about suspended particles and possible sediment transport. These measurements are valuable in understanding coastal environments as well as the dominant physical processes that cause mixing and set the conditions for local biological activity. An example deployment in Apalachicola Bay shown in this study demonstrates the ability of the drifter to observe small-scale features, such as overturning cells and plumes of dense water, that are caused by local topography.

scholarly journals The Borax Method of Gold Extraction for Small-Scale Miners

2012 ◽  
Vol 2 (3) ◽  
pp. 5-10 ◽  
Author(s):  
Peter W.U. Appel ◽  
Leoncio Na-Oy
Keyword(s):  
Heavy Metal ◽  
Melting Point ◽  
Scientific Research ◽  
The Philippines ◽  
Toxic Element ◽  
Heavy Mineral ◽  
Small Scale ◽  
Gold Extraction ◽  
Reducing Costs ◽  
Capture Rates

Background. More than ten million small-scale miners (SSM) worldwide use mercury to extract gold, releasing large amounts of the toxic element into the environment. Alternatives to mercury have been suggested over the years to little avail. A group of miners in the Philippines has demonstrated that borax, when used as a flux for smelting gold out of heavy mineral concentrates, is an effective and safer substitute for mercury. Objectives. To present a basic comparison of the mercury amalgamation and borax methods of gold extraction for SSM. Methods. Borax was added to milled ore to reduce the melting point of gold to a level accessible to SSM. The amount of gold captured, and the amount of mercury released into the environment, was compared to two common amalgamation methods: whole ore and heavy metal. Discussion. The borax method appears to capture more gold, as well as eliminate the use of mercury. It is also less expensive. It is important to stop the use of mercury amongst SSM. However, health and environmental arguments alone are not enough to convince miners to switch. The argument of improving gold-capture rates while reducing costs is more compelling, and may help propagate the technique among small-scale miners. Conclusions. Scientific research should continue in order to further establish the uses and limitations of the borax method.

scholarly journals Multipurpose Energy Saving Manual Compressor for Artisans in African Countries

2018 ◽  
Vol 8 (4) ◽  
Author(s):  
Dr.Isaac Ali Kwasu ◽  
Dr.Aje Tokan ◽  
Engr.M A Bawa
Keyword(s):  
Driving Force ◽  
Storage Tank ◽  
Research Work ◽  
Daily Activities ◽  
Small Scale ◽  
Pilot Test ◽  
Prime Mover ◽  
African Countries ◽  
Air Compressor ◽  
To Receive

This Research work involves the design, fabrication and testing of a manually operated compressor for use of artisans and small scale vulcanizing activities. The developed machine consists of chain sprocket arrangement to a flywheel attached to a pulley which powers the compressor as well as a storage tank to receive air by foot pedaling. The article is an innovative product to meet the needs of rural African Artisans that uses air compressor for their daily activities . The design is such that the chain sprocket provides the compressor with a driving force in conjunction with the flywheel thereby replacing the prime mover. Prototype pilot test carried out on the developed manual air compressor could generates 10 Psi ie 0.69bar-volume of air in 60 seconds. A new design with better parameter of the machine was done to improve it’s proficiency after testing for broad application even for the handicap Artisans.

scholarly journals State Laws and Regulations Addressing Nurse-Initiated Protocols and Use of Nurse-Initiated Protocols in Emergency Departments: A Mixed-methods Cross-sectional Survey Study

2020 ◽  
Author(s):  
Jessica Castner ◽  
Lenore Boris
Keyword(s):  
Mixed Methods ◽  
Emergency Care ◽  
Emergency Departments ◽  
New York State ◽  
Scope Of Practice ◽  
Survey Study ◽  
Small Scale ◽  
X Rays ◽  
Cross Sectional Survey ◽  
Cross Sectional

AbstractIntroductionState regulations may impede the use of nurse-initiated protocols to begin life-saving treatments when patients arrive to the emergency department. In crowding and small-scale disaster events, this could translate to life and death practice differences. Nevertheless, research demonstrates nurses do utilize nurse-initiated protocols despite legal prohibitions. The purpose of this study was to explore the relationship of the state regulatory environment as expressed in nurse practice acts and interpretive statements prohibiting the use of nurse-initiated protocols with hospital use of nurse-initiated protocols in emergency departments.MethodsA mixed-methods approach was used with a cross-sectional nationwide survey. The independent variable categorized the location of the hospital in states that have a protocol prohibition. Outcomes included protocols for blood laboratory tests, x-rays, over the counter medication, and electrocardiograms. A second analysis was completed with New York State alone because this state has the strongest language prohibiting nurse-initiated protocols.Results350 surveys from 48 states and the District of Columbia were received. A hospital was more likely to have policies supporting nurse-initiated protocols if they were not in a state with scope of practice prohibitions. Four qualitative categories emerged: advantages, approval, prohibition, and conditions under which protocols can be used. Prohibitive language was associated with less protocol use for emergency care.ConclusionState scope of practice inconsistencies create misalignment with emergency nurse education and training, which may impede timely care and contribute to inequalities and inefficiencies in emergency care. In addition, prohibitive language places practicing nurses responding to emergencies in crowded work environments at risk.

scholarly journals Cholesteatoma of Maxillary Sinus: Mimicking as Sinus Tumor

2011 ◽  
Vol 4 (2) ◽  
pp. 119-121
Author(s):  
Jagveer Singh Yadav ◽  
Mahendra Chouhan ◽  
Jaimanti Bakshi ◽  
Uma Nahar Saikia
Keyword(s):  
Maxillary Sinus ◽  
Paranasal Sinus ◽  
Paranasal Sinuses ◽  
Squamous Epithelium ◽  
Columnar Epithelium ◽  
Rare Occurrence ◽  
Respiratory Mucosa ◽  
Sinus Tumor

ABSTRACT Paranasal sinuses are normally lined by respiratory mucosa which is pseudostratified ciliated columnar epithelium. Cholesteatoma of paranasal sinus is a condition where respiratory mucosa is either partially or totally replaced by hyperkeratotic squamous epithelium which lead to formation of lamellar sheet of keratin and this condition is known as cholesteatoma. We report one such rare occurrence of maxillary sinus cholesteatoma managed endoscopically.

scholarly journals Portable Food Balls Extrusion Machine

2020 ◽  
Vol 9 (4) ◽  
pp. 465-468
Keyword(s):  
Technology Transfer ◽  
Research And Development ◽  
Cost Efficiency ◽  
Significant Variation ◽  
Small Scale ◽  
Business Incubation ◽  
Manual Method ◽  
Production Ratio ◽  
Commercial Value ◽  
Better Than

This study developed a portable extrusion machine for food balls products. The study used the Research and Development (R&D) process for it involved the preparation and construction of a finished product that can be used in the field of education. The extrusion machine’s cost efficiency was 10 times better than the manual method but twice lower compared to the commercial machine. There was significant variation in the weights of the food balls produced by the three methods, and the instructional and commercial value of the machine obtained an overall mean rating of 4.46 or very satisfactory. Thus, it is technically feasible to construct the portable extrusion machine in view of the expected functionality of the designed parts, the availability of supplies and materials and affordability of its cost. The construction of the machine requires procedure to follow for ease and accuracy. The portable extrusion machine is superior over the manual method but inferior to commercial units as to production ratio. Furthermore, it is more economically viable to use the portable extrusion machine for small-scale food balls production than the manual method. Potential for technology transfer/ generation and business incubation should be conducted before its release in the Philippine market

scholarly journals Perceptions of Brazilian small-scale farmers about genetically modified crops

2015 ◽  
Vol 18 (1) ◽  
pp. 193-210 ◽  
Author(s):  
Carla Almeida ◽  
Luisa Massarani ◽  
Ildeu de Castro Moreira
Keyword(s):  
Decision Making ◽  
Focus Groups ◽  
Genetically Modified ◽  
Genetically Modified Crops ◽  
Free Food ◽  
Economic Feasibility ◽  
Small Scale ◽  
Small Scale Farmers ◽  
The Impact ◽  
To Receive

The aim of this paper is to investigate the perceptions of small-scale farmers in Brazil towards genetically modified (GM) crops based on a sample of 15 focus groups involving 111 individuals. The analysis of the corpus shows heterogeneous perceptions regarding these crops, shaped by diverse factors, including economic prospects and concerns with the impact on health and the environment. There are many misgivings about these effects among the farmers, who are keen to receive unbiased information on the topic. These uncertainties affect them more as consumers, as most would prefer eating GM-free food, than as producers, as they consider other aspects, especially economic feasibility, when deciding what to grow. Although most farmers believe they should have a voice in decision-making on agricultural issues, few have made concerted efforts to be heard.

RotoPower – A Real Time Electricity Source Based on Rotational Motion

2015 ◽  
Vol 786 ◽  
pp. 334-339
Author(s):  
Megalingam Rajesh Kannan ◽  
Baburaj Abilash ◽  
Sreekanthan Karthik ◽  
Mattathil Anoop ◽  
H. Anriudh
Keyword(s):  
Mobile Phones ◽  
Major Part ◽  
Small Scale ◽  
Energy Poverty ◽  
Sewing Machine ◽  
Rural Villages ◽  
The North ◽  
North Eastern ◽  
The Masses ◽  
To Receive

Sewing is one of the oldest textile arts which are still popular among the masses of India. Beyond being an art work, sewing serves as a source of livelihood for millions of people. In modern India the major part of the sewing industry is confined to the rural villages spread across the north and the north eastern states of India. Most of these villages are still to receive electricity and those of whom have, are sustaining on the verge of energy poverty. The operation of a sewing machine can be harnessed to produce electricity for small scale purposes. This can be used for charging batteries, mobile phones, lamps, emergency lights. The rotational aspect of the sewing machine wheel can be used to generate power. Power generation is facilitated by using an Alternator. The usage of an Alternator over a DC Motor or Dynamo has added advantages which are described in detail in due course. This paper is intended to present a method to generate power by effectively harnessing the rotational capability of a sewing machine wheel. The paper also deals with the advantages of using an alternator over other electricity generating devices.

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