Work Time Required to Perform Diagnostic and Interventional Pediatric Cardiac Catheterizations

1997 ◽  
Vol 80 (4) ◽  
pp. 528-530 ◽  
Author(s):  
Rolando Zamora ◽  
Stanley J Goldberg
Keyword(s):  
Work Time ◽  
Time Required ◽  
Cardiac Catheterizations

Controlling Purple Jewelweed (Impatiens glandulifera): Assessment of Feasibility and Costs

2017 ◽  
Vol 10 (3) ◽  
pp. 254-261
Author(s):  
Michaël Leblanc ◽  
Claude Lavoie
Keyword(s):  
Riparian Vegetation ◽  
Stem Density ◽  
Impatiens Glandulifera ◽  
Work Time ◽  
Exotic Invasive Species ◽  
Exotic Invasive ◽  
Time Required ◽  
Density And Biomass ◽  
The Relationship ◽  
Control Campaign

We experimentally tested the feasibility of a control campaign of purple jewelweed (Impatiens glandulifera), an exotic invasive species in Europe and North America. We evaluated the amount of time and money required to control the plant along riverbanks, with particular attention paid to the recovery of riparian vegetation following hand pulling and bagging. Work time was directly and significantly related to stem density and fresh biomass of the invader, but the relationship was stronger for density. Density and biomass were strongly reduced by the first hand-pulling operation from a mean of 45 to 2 stems m−2 and from a mean of 0.95 kg m−2 to nearly zero, a good performance but not enough to negate the need for a second hand pulling later in the summer. A single hand pulling significantly reduced the cover of purple jewelweed from to 30% to 7%. Riparian vegetation disturbed by the first hand pulling largely recovered during the following 30 d. Expressed over an area of 1 ha, the total amount of time required to control purple jewelweed is 1,400 work hours over 2 yr, or a minimum investment of Can$21,000 (US$17,000). Although controlling a well-established purple jewelweed population is expensive, to properly evaluate the benefits, we must also consider the costs of soil erosion caused by this species.

scholarly journals Characterizing and Mitigating Work Time Inflation in Task Parallel Programs

2013 ◽  
Vol 21 (3-4) ◽  
pp. 123-136 ◽  
Author(s):  
Stephen L. Olivier ◽  
Bronis R. de Supinski ◽  
Martin Schulz ◽  
Jan F. Prins
Keyword(s):  
Poor Performance ◽  
Data Access ◽  
Parallel Applications ◽  
Task Parallelism ◽  
Improve Performance ◽  
Additional Time ◽  
Work Time ◽  
Task Parallel ◽  
Time Required ◽  
Data Access Latency

Task parallelism raises the level of abstraction in shared memory parallel programming to simplify the development of complex applications. However, task parallel applications can exhibit poor performance due to thread idleness, scheduling overheads, andwork time inflation– additional time spent by threads in a multithreaded computation beyond the time required to perform the same work in a sequential computation. We identify the contributions of each factor to lost efficiency in various task parallel OpenMP applications and diagnose the causes of work time inflation in those applications. Increased data access latency can cause significant work time inflation in NUMA systems. Our locality framework for task parallel OpenMP programs mitigates this cause of work time inflation. Our extensions to the Qthreads library demonstrate that locality-aware scheduling can improve performance up to 3X compared to the Intel OpenMP task scheduler.

scholarly journals Productivity of Column Casting Heavy Equipment in the Construction of 31 Sudirman Suites Makassar Apartment

2021 ◽  
Vol 3 (3) ◽  
pp. 10-20
Author(s):  
Fedelia Randan ◽  
Junus Mara ◽  
Lintje Tammu Tangdialla
Keyword(s):  
Construction Projects ◽  
Material Transfer ◽  
Work Time ◽  
Tower Crane ◽  
Heavy Equipment ◽  
Equipment Construction ◽  
Calculation Results ◽  
Real Value ◽  
Time Required ◽  
Equipment Operator

In the world of heavy equipment construction projects it is important to help complete human work. Tower Crane is one of the tools in the implementation of construction projects. In the implementation of the construction of Apartment 31 Sudirman Suites Makassar, there are 2 Tower Crane tools that operate with limited work time due to covid 19. This research was carried out by direct observation in the field and calculating the real value of the specifications to compare productivity. Tower Crane productivity is the result achieved or output, namely the amount of material moved by Tower Crane with all resources or inputs, namely the time required for material transfer. Based on the calculation results that the productivity of the specification is greater than the productivity of observations in the field, this is due to constraints on the weather that occurs and the equipment operator. For productivity, the average obtained on the 4th floor is 71,544 (%) and on the 5th floor it is obtained that is 73,727 (%).

scholarly journals Comparative Analysis Method of Work, Time and Cost of Concrete Spun Pile Work with Bored Pile On Construction of the Light Rail Transit (LRT)

2019 ◽  
Vol 1 (1) ◽  
pp. 63-72
Author(s):  
Yopi Lutfiansyah ◽  
Muhammad Akhsan
Keyword(s):  
Pile Foundation ◽  
Light Rail ◽  
Work Time ◽  
Bored Pile ◽  
Implementation Time ◽  
Supporting Soil ◽  
Lower Structure ◽  
Time Required ◽  
The Cost ◽  
To Receive

Building construction consists of two parts, namely the upper building and lower building. The upper building transmits forces to the lower building, which then from the lower building is channeled to the supporting soil. Pile foundation is a part of the lower structure that is used to receive and distribute the load from the upper structure to the supporting soil which is located at a certain depth determined by the results of the soil investigation. Piles are used as building foundations if the soil under the building base does not have enough bearing capacity to carry the weight of the building working on it. The stake used in this comparison is the Concrete Spun Pile and Bored Pile foundation. The results of the study show that the Bored pile method is slightly more complicated than the Concrete spun pile method. In terms of time required for the Concrete spun work is 6 hours, while for Bored piles per point is 9 hours assuming the work is 3 months In terms of the cost of foundation work of 1000mm diameter and 30m depth using the Concrete spun pile method is Rp. 13,704,241,634.10 for 156 points. whereas for the Bored pile method with a diameter of 1200mm and a depth of 30m is Rp. 14,242,797,932.85 for 78 points. So the foundation work with the Concrete spun pile method is more effective and efficient than the Bored pile method based on the method of implementation, time and cost.

scholarly journals Analisis Produktivitas Tukang Batu Bata Pada Proyek Pembangunan Asrama Puteri Mandala Wangi 2 di Kota Kendari

2021 ◽  
Vol 2 (1) ◽  
pp. 37-45
Author(s):  
Al Mustahyun ◽  
Sunaryo Sunaryo ◽  
La Ode Musa Rahmat ◽  
Sufrianto Sufrianto
Keyword(s):  
Construction Industry ◽  
Labor Productivity ◽  
Labor Cost ◽  
Labor Costs ◽  
Work Time ◽  
Work Activities ◽  
Competitive Prices ◽  
Time Required

Productivity is one of the fundamental factors that influences the ability of performance in the construction industry. Increasedproductivity will reduce work time, and will reduce costs, especiallylabor costs so that the minimum labor cost is obtained (labor costs)to get competitive prices both for auction and implementation. Thepurpose of this study is to analyze the labor productivity time incompleting 1 m2 of masonry bricks and to analyze the productivityvalue of brick masons in completing work activities in the constructionproject of the Mandala Wangi 2 female dormitory. The results showedthat the time required to complete 1 m2 of brick laying work was 41.13minutes on average. The productivity of the artisans working on the 1stfloor is an average of 1.45 m2/hr. Meanwhile, the productivity ofcraftsmen working on the 2nd floor is an average of 1.47 m2/hr.

scholarly journals PERBANDINGAN BIAYA DAN WAKTU PEKERJAAN DINDING PASANGAN BATA MERAH DAN BATU KUMBUNG PERUMAHAN GRIYA PERMATA INSANI

Jurnal CIVILA ◽  
2017 ◽  
Vol 2 (2) ◽  
pp. 6
Author(s):  
Mashudin Mashudin ◽  
Rasio Hepiyanto
Keyword(s):  
Direct Observation ◽  
Building Construction ◽  
Brick Wall ◽  
Work Time ◽  
Daily Record ◽  
The Difference ◽  
Time Required ◽  
The Cost

Contruction expanded rapidly and spread in Lamongan, from fairly simple residential contractor to large developer continuing to explore in building construction. This research aims to know the comparative costs of wall job using material white brick and red brick based on analysis of a contractor with the methodof 2017 SNI job and time of wall job white brick  and red brick per m2 using method Daily Record Sheet that is by direct observation and recording work time couples wall field. The result of the research conducted is found the cost of work required for couples wallwhite stone per m2 using analysis of contractor is Rp. 66.020,-/m2 and a pairof red brick wall is Rp. 75.020,-/m2. The cost of the work required for the pair of wall stone kumbung per m2 based on SNI method 2017 is Rp. 109.910,-/m2 and pair of red brick wall is Rp. 113.100,-/m2. After the comparison then it can be inferred that the couple wall using white brick cheaper than the pair of red brick wall, but the difference is not too significant is Rp 9,000,-per m2 with contractor method and IDR 3,190,-per m2using SNI 2017method. The time it takes to complete the job of couple wall using red brick per m2 is 0.445 hours/m2, whereas the time required on the job of couple wall using white brick is 0.324 hours/m2. So the job of  the couple wall using white brick more efficient 0.121 hours/m2 compared with red brick wall.

The Critical Point Drying Method Applied to Scanning Electron Microscopy of L-929 Cells

1970 ◽  
Vol 28 ◽  
pp. 278-279
Author(s):  
Charles TurnbiLL ◽  
Delbert E. Philpott
Keyword(s):  
Electron Microscopy ◽  
Carbon Dioxide ◽  
Surface Tension ◽  
Critical Point ◽  
Freeze Drying ◽  
Attractive Alternative ◽  
Crystal Formation ◽  
Critical Point Drying ◽  
Time Required ◽  
Scanning Electron

The advent of the scanning electron microscope (SCEM) has renewed interest in preparing specimens by avoiding the forces of surface tension. The present method of freeze drying by Boyde and Barger (1969) and Small and Marszalek (1969) does prevent surface tension but ice crystal formation and time required for pumping out the specimen to dryness has discouraged us. We believe an attractive alternative to freeze drying is the critical point method originated by Anderson (1951; for electron microscopy. He avoided surface tension effects during drying by first exchanging the specimen water with alcohol, amy L acetate and then with carbon dioxide. He then selected a specific temperature (36.5°C) and pressure (72 Atm.) at which carbon dioxide would pass from the liquid to the gaseous phase without the effect of surface tension This combination of temperature and, pressure is known as the "critical point" of the Liquid.

Search mode for rapid detection of virus particles

1991 ◽  
Vol 49 ◽  
pp. 286-287
Author(s):  
O. E. Bradfute
Keyword(s):  
Electron Microscopy ◽  
Rapid Detection ◽  
Plant Virus ◽  
Low Dose ◽  
Search Mode ◽  
Virus Diseases ◽  
Virus Particles ◽  
Focus Image ◽  
Time Required ◽  
Rapid Switching

Electron microscopy is frequently used in preliminary diagnosis of plant virus diseases by surveying negatively stained preparations of crude extracts of leaf samples. A major limitation of this method is the time required to survey grids when the concentration of virus particles (VPs) is low. A rapid survey of grids for VPs is reported here; the method employs a low magnification, out-of-focus Search Mode similar to that used for low dose electron microscopy of radiation sensitive specimens. A higher magnification, in-focus Confirm Mode is used to photograph or confirm the detection of VPs. Setting up the Search Mode by obtaining an out-of-focus image of the specimen in diffraction (K. H. Downing and W. Chiu, private communications) and pre-aligning the image in Search Mode with the image in Confirm Mode facilitates rapid switching between Modes.

Microwaves: Application in Electron Microscopy

1990 ◽  
Vol 48 (3) ◽  
pp. 140-141
Author(s):  
Anthony S-Y Leong ◽  
David W Gove
Keyword(s):  
Electron Microscopy ◽  
Light Microscopy ◽  
Chemical Reactions ◽  
Electromagnetic Waves ◽  
Tissue Fixation ◽  
Primary Method ◽  
Dipolar Molecules ◽  
Wide Range ◽  
Time Required ◽  
Cryostat Sections

Microwaves (MW) are electromagnetic waves which are commonly generated at a frequency of 2.45 GHz. When dipolar molecules such as water, the polar side chains of proteins and other molecules with an uneven distribution of electrical charge are exposed to such non-ionizing radiation, they oscillate through 180° at a rate of 2,450 million cycles/s. This rapid kinetic movement results in accelerated chemical reactions and produces instantaneous heat. MWs have recently been applied to a wide range of procedures for light microscopy. MWs generated by domestic ovens have been used as a primary method of tissue fixation, it has been applied to the various stages of tissue processing as well as to a wide variety of staining procedures. This use of MWs has not only resulted in drastic reductions in the time required for tissue fixation, processing and staining, but have also produced better cytologic images in cryostat sections, and more importantly, have resulted in better preservation of cellular antigens.

Clinical Update: Functional Capacity Evaluations—An Update

1999 ◽  
Vol 4 (5) ◽  
pp. 4-7 ◽  
Author(s):  
Laura Welch
Keyword(s):  
Job Performance ◽  
Functional Capacity ◽  
Injury Risk ◽  
Disability Evaluation ◽  
Time Period ◽  
Submaximal Effort ◽  
Lack Of Sleep ◽  
Overall Performance ◽  
Time Required ◽  
Specific Limitation

Abstract Functional capacity evaluations (FCEs) have become an important component of disability evaluation during the past 10 years to assess an individual's ability to perform the essential or specific functions of a job, both preplacement and during rehabilitation. Evaluating both job performance and physical ability is a complex assessment, and some practitioners are not yet certain that an FCE can achieve these goals. An FCE is useful only if it predicts job performance, and factors that should be assessed include overall performance; consistency of performance across similar areas of the FCE; consistency between observed behaviors during the FCE and limitations or abilities reported by the worker; objective changes (eg, blood pressure and pulse) that are appropriate relative to performance; external factors (illness, lack of sleep, or medication); and a coefficient of variation that can be measured and assessed. FCEs can identify specific movement patterns or weaknesses; measure improvement during rehabilitation; identify a specific limitation that is amenable to accommodation; and identify a worker who appears to be providing a submaximal effort. FCEs are less reliable at predicting injury risk; they cannot tell us much about endurance over a time period longer than the time required for the FCE; and the FCE may measure simple muscular functions when the job requires more complex ones.

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