The importance of cost considerations in the systems engineering process

This paper examines the question of cost, from the birth of a program to its conclusion, particularly from the point of view of large multi-center programs, and suggests how to avoid some of the traps and pitfalls. Emphasis is given to cost in the systems engineering process, but there is an inevitable overlap with program management. (These terms, systems engineering and program management, have never been clearly defined.) In these days of vast Federal budget deficits and increasing overseas competition, it is imperative that we get more for each research and development dollar. This is the only way we will retain our leadership in high technology and, in the long run, our way of life

Meteorological radar calibration

A meteorological radar calibration technique is developed. It is found that the integrated, range corrected, received power saturates under intense rain conditions in a manner analogous to that encountered for the radiometric path temperature. Furthermore, it is found that this saturation condition establishes a bound which may be used to determine an absolution radar calibration for the case of radars operating at attenuating wavelengths. In the case of less intense rainfall or for radars at nonattenuating wavelengths, the relationship for direct calibration in terms of an independent measurement of radiometric path temperature is developed. This approach offers the advantage that the calibration is in terms of an independent measurement of the rainfall through the same elevated region as that viewed by the radar

An improved empirical model for diversity gain on Earth-space propagation paths

An empirical model was generated to estimate diversity gain on Earth-space propagation paths as a function of Earth terminal separation distance, link frequency, elevation angle, and angle between the baseline and the path azimuth. The resulting model reproduces the entire experimental data set with an RMS error of 0.73 dB

Millimeter wavelength propagation studies

Diversity data obtained using the ATS-5 satellite and available BTL data were compared with optimum diversity gain predictions. This comparison indicates that terminal spacings exceeding 8 km result in values of diversity gain within 1.5 dB of the optimum. The thunderstorm cell modeling technique for predicting attenuation and diversity gain statistics was extended to include ellipsoidal cell models. A three rain gage method for the measurement of cell size, ellipticity, and orientation was developed

The effects of precipitation on radar target identification and imaging

The properties of precipitation which will influence radar system design are discussed. The spatial characteristics of rainfall and the sizes and shapes of raindrops are described. The dielectric behavior of water is combined with these characteristics to determine the effects of rain on electromagnetic waves. These effects include: absorption, scatter, noise emission, phase shift, and depolarization

The Ever-Changing Landscape of Informed Consent and Whether the Obligation to Explain a Procedure to the Patient May Be Delegated

Informed consent is an integral part of the shared decision making process and requires a patient be informed of the benefits, risks and alternatives to a medical procedure. This information, which requirement has been codified into the law and practice of every healthcare provider, helps a patient decide whether to proceed with the recommended treatment plan. Informed consent has its foundation in the ethical notion of patient autonomy and fundamental human rights. After all, it is the patient’s decision to determine what may be done to his or her body and to ascertain the risks and benefits before undertaking a procedure. On the other hand, a physician’s role is to act as a facilitator in the patient’s decision making process by providing information about the planned treatment and to answer questions. While the roles of the patient and physician seem clearly defined, a number of barriers present challenges in creating a process that guarantees a patient understands a test or procedure. This includes ineffective communication between the doctor and patient. The first part of this article will explore the liability of various health care providers who participate in the informed consent process, such as the physician, nurse, physician assistant and hospital. The second section will examine whether the treating physician may delegate the duty to explain the risks and alternatives of a procedure to another. The controversial decision of Shinal v. Toms, which mandates that the doctor must have a one-on–one exchange with the patient in order to secure a valid informed consent, will also be explored. This recent ruling has sent shock waves throughout the medical community causing a reexamination of their informed consent policies

Amplitude scintillations on earth-space propagation paths at 2 and 30 GHz

Amplitude scintillation measurements were made simultaneously at 2.075 and 30 GHz on earth-space propagation paths over elevation angles in the range 0.4 to 44 deg. The experiment was performed as the Applications Technology Satellite (ATS-6) was moved slowly from a synchronous position over Africa to a new synchronous position over the United States. The received signal, variance, level, covariance, spectra and fade distributions are discussed as functions of the path elevation angle. These results are also compared wherever possible with similar measurements made earlier at 20 and 30 GHz

Effects of atmospheric turbulence on microwave and millimeter wave satellite communications systems

A model of the microwave and millimeter wave link in the presence of atmospheric turbulence is presented with emphasis on satellite communications systems. The analysis is based on standard methods of statistical theory. The results are directly usable by the design engineer

Enabling transition into higher education for students with asperger syndrome

This project report provides an insight into the lives of students with Asperger Syndrome (AS) during their transition into higher education. It details the experiences of eight students with AS. Students were interviewed multiple times at various junctures throughout their first academic year. Although they told stories of everyday disabling barriers, they also shared experiences of academic and social successes. The project was primarily focused on students with AS; however, its findings will hopefully help inform inclusive policy and practice within higher education institutions

What Can Be Done About A Disruptive Physician? A Legal Analysis

House, a medical drama about an infectious disease specialist, entertained television audiences for years as the irascible and pill-popping physician solved medical mysteries with the zeal of a modern-day Sherlock Holmes while playing mind games with his coworkers. Uncanny intuition and eccentric thinking earned the physician great respect but his bullish behavior and antisocial tendencies were a distraction at the hospital. Not only did Dr. House clash with his fellow physicians but he also insulted patients, flouted hospital rules and caused great conflict with the hospital administrators. In fact, his actions often crossed the line into obnoxiousness and rage causing the hospital staff to tiptoe around his dysfunctional behavior. In the real world, Dr. House would be labeled a “disruptive physician” and would be subjected to disciplinary action including the loss of his hospital privileges. This article will explore the problems caused by being labeled a disruptive physician in a legal context with a focus on the peer review process and the relevant court cases