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Institutions concerned about their employees' and patrons' perceptions of safety should consider installing metal detectors in their EDs.
Based on these results the future prospects of such detectors are very encouraging.
Open accessJournal ArticleDOI
Naoto Yagi, Katsuaki Inoue 
12 Citations
The quality of the images shows that these detectors are suitable for this purpose.
Open accessProceedings ArticleDOI
Tim Menzies, J.S. Di Stefano 
25 Mar 2004
70 Citations
Further, these detectors are inexpensive to use and can be tuned to the specifics of the current business situations.
The detector has similar energy resolution performance to semi-planar detectors, and offers significant improvement over the Coaxial and existing Well detectors.
Results show that it outperforms the conventional detectors.
The sensitivity of the system is practically preferable to that of metal detectors.
The insight given by this paper into metal detectors, will allow those not familiar with such instruments, a better understanding of their potential and limitations.
from a preliminary analysis of even these simple cases explain a number of previous experimental observations, for example, the greater influence of magnetic properties than of electrical conductivity on the performance of metal detectors.

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Diffrent type of sampling in qualitative research ?
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Qualitative research utilizes various sampling methods to select information-rich cases. Two common types of sampling techniques in qualitative research are theoretical sampling and purposeful sampling. Theoretical sampling involves selecting new cases based on emerging theories and concepts during data collection, aiming to refine and develop theoretical explanations. On the other hand, purposeful sampling focuses on selecting cases that can provide in-depth insights into the phenomenon of interest, often chosen for their unique characteristics or relevance to the research question. These sampling techniques are crucial in qualitative research to ensure the selection of cases that can contribute significantly to the study's depth and richness, ultimately enhancing the rigor and validity of the research findings.
What is vignette surveys?
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Vignette surveys are scenarios or short narratives used in research to present hypothetical situations for respondents to evaluate attitudes, beliefs, or behaviors. These vignettes aim to capture responses without directly referencing the participants' personal experiences, allowing for a more objective assessment of various scenarios. Vignettes are utilized in diverse fields such as psychology, social sciences, and health communication research, offering a method to study biases, decision-making variations, and communication program evaluations. The creation of vignettes requires careful consideration of factors like plausibility, clarity, content validity, and analogy to the construct being studied. Vignette surveys play a crucial role in understanding individual-level attitudes, behaviors, and knowledge, highlighting areas for improvement in their validity as research tools.
Amorphous sillicon photodiode'
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An amorphous silicon photodiode is a key component in various optoelectronic devices. It typically consists of a photodiode structure with an amorphous silicon layer, electrodes, and sometimes additional layers for improved performance. The use of amorphous silicon in photodiodes offers advantages such as ease of fabrication and compatibility with large-scale production processes. To enhance the efficiency and reduce dark current in amorphous silicon devices, techniques like incorporating nitrogen-doped indium tin oxide films or barrier metal films made of high-melting point metals have been proposed. These innovations aim to improve the overall performance and reliability of amorphous silicon photodiodes for various applications in light detection and energy conversion technologies.
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To draw a simple random sample, one can utilize the simple random sampling (SRS) method, which involves selecting a sample of n units from a population of N units with equal probability of selection. This process can be implemented without replacement, ensuring each unit has an unbiased chance of being chosen. Various algorithms exist for this task, with some offering optimal space and time complexity for sampling without replacement from a given set. Additionally, the use of random number tables, such as those developed by renowned researchers, can aid in selecting random samples effectively. In cases where a sampling frame is based on a map of the population area, methods exist to draw simple random samples of individuals, ensuring unbiased representation and accurate estimation of population parameters.
What does chemists do?
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Chemists engage in a diverse array of activities, as highlighted in the abstracts. They are involved in exploration, description, synthesis, theorizing, and measurement, with Nobel Prizes in chemistry being distributed evenly among these categories over time. Chemists play a crucial role in understanding how pollutants enter and affect the body, aiming to reduce diseases and fatalities. They work across various sectors such as medicine, pharmaceuticals, nuclear technology, biotechnology, and nanotechnology, showcasing the broad professional domains in which they operate. Additionally, chemistry significantly impacts everyday life and professions, including law enforcement, public health, automobile manufacturing, electronics, waste management, and even international diplomacy, as seen in the investigation of chemical weapon use in Syria.
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Cu{100} may not be detected in X-ray diffraction (XRD) due to various reasons outlined in the provided contexts. For instance, in the study by AlShamaileh et al., the focus was on Cu{100} surfaces with Pt or Pd deposition, not on pure Cu{100} surfaces. Shirokoff and Lewis discussed Cu-implanted SiO2 films and nano-crystalline Cu phases, which may not directly relate to pure Cu{100} surfaces. Additionally, Dooraghi et al. concentrated on CdTe detectors for X-ray computed tomography, which is unrelated to the detection of Cu{100} in XRD. Cappadonia et al. investigated Cu deposition on Au{100}, not Cu{100} itself. Vlieg et al. explored Cu(100)-(2×2)-S systems, which do not directly address the detection of pure Cu{100} in XRD. Therefore, the absence of direct references to pure Cu{100} surfaces in the provided contexts explains why Cu{100} detection in XRD is not discussed.
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The population of study refers to the group of individuals from which a sample is drawn to conduct research. It is crucial to carefully define the study population to ensure that the research findings are applicable and generalizable. The study population can be determined by specific characteristics and criteria, including selection or eligibility criteria such as inclusion and exclusion criteria. Different sampling methods, such as probabilistic or non-probabilistic sampling, are employed to select participants from the study population. Population-based research aims to answer research questions for a defined population, which can be geographically bound or defined by other criteria like membership in specific health organizations. Ultimately, the study population forms the basis for drawing conclusions and making inferences in research studies.
Acceleration of a golf rrl?
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