Digital Commons Network^™

Measurement Of Conductivity And Charge Storage In Insulators Related To Spacecraft Charging, A Robb Frederickson, Jr Dennison

Journal Articles

Improved experimental methods are discussed for laboratory measurement of conductivity and electric field in insulating spacecraft material intended for space radiation and plasma environments. These measurement techniques investigate the following features: 1) Measurements of conductivity are up to four orders of magnitude smaller than those determined by existing standard methods. 2) Conductivity is altered as radiation accumulates and trapping states fill with electrons. 3) With intense keV electron irradiation, electrons are continually emitted for hours from the irradiated surface after the irradiation ceases. 4) Charging induced by electron irradiation is strongly modified by the electron-hole pairs that the irradiation generates …

The Effects Of Anterior Cruciate Ligament Reconstruction On Tibial Rotation During Pivoting After Descending Stairs, Stavros Ristanis, Giannis Giakas, Christos D. Papageorgiou, Constantina O. Moraiti, Nikolaos Stergiou, Anastasios D. Georgoulis

Journal Articles

Recent in vitro research suggests that ACL reconstruction does not restore tibial rotation. This study investigated rotational knee joint stability in vivo during a combined descending and pivoting movement that applies a high rotational load to the knee joint. We studied 20 ACL reconstructed patients (bone–patellar tendon–bone graft) and 15 matched controls with a six-camera optoelectronic system performing the examined movement. In the control group the results showed no significant differences in the amount of tibial rotation between the two sides. No significant differences were also found between the contralateral intact leg of the ACL group and the healthy control. …

Corporation Law After Enron: The Possibility Of A Capitalist Reimagination, David A. Westbrook

Journal Articles

No abstract provided.

In Vitro Analog Of Classical Conditioning Of Feeding Behavior In Aplysia, Riccardo Mozzachiodi, Hilde A. Lechner, Douglas A. Baxter, John H. Byrne

Journal Articles

The feeding behavior of Aplysia californica can be classically conditioned using tactile stimulation of the lips as a conditioned stimulus (CS) and food as an unconditioned stimulus (US). Moreover, several neural correlates of classical conditioning have been identified. The present study extended previous work by developing an in vitro analog of classical conditioning and by investigating pairing-specific changes in neuronal and synaptic properties. The preparation consisted of the isolated cerebral and buccal ganglia. Electrical stimulation of a lip nerve (AT4) and a branch of the esophageal nerve (En2) served as the CS and US, respectively. Three protocols were used: paired, …

Final Justice, Richard W. Garnett

Journal Articles

Richard Garnett reviews Stuart Banner, The Death Penalty: An American History (2002) & Franklin E. Zimring, The Contradictions of American Capital Punishment (2003).

Illustrating A Behaviorally Informed Approach To Antitrust Law: The Case Of Predatory Pricing, Avishalom Tor

Journal Articles

One of the core assumptions of the traditional economic approach to antitrust law is that competitors are perfectly rational, profit-maximizing, decision makers. Sometimes, this assumption serves as a useful simplification of business behavior, providing an effective foundation for antitrust doctrine. At other times, however, assuming strictly rational behavior on the part of competitors is not “approximately right” but, instead, “perfectly wrong.” In these latter cases, the reliance on the perfect rationality assumption can lead scholars to mispredict market behavior and, possibly, advocate erroneous prescriptions for antitrust policy. In contrast, a behaviorally informed approach to antitrust law is based on scientific …

Rifn-Gamma-Mediated Growth Suppression Of Platinum-Sensitive And -Resistant Ovarian Tumor Cell Lines Not Dependent Upon Arginase Inhibition., Bohuslav Melichar, Wei Hu, Rebecca Patenia, Karolina Melicharová, Stacie T Gallardo, Ralph Freedman

Journal Articles

BACKGROUND: Arginine metabolism in tumor cell lines can be influenced by various cytokines, including recombinant human interferon-gamma (rIFN-gamma), a cytokine that shows promising clinical activity in epithelial ovarian cancer (EOC). METHODS: We examined EOC cell lines for the expression of arginase in an enzymatic assay and for transcripts of arginase I and II, inducible nitric oxide synthase (iNOS), and indoleamine 2,3-dioxygenase (IDO) by reverse transcription-polymerase chain reaction. The effects of rIFN-gamma on arginase activity and on tumor cell growth inhibition were determined by measuring [3H]thymidine uptake. RESULTS: Elevated arginase activity was detected in 5 of 8 tumor cell lines, and …

The Aging Human Neuromuscular System Expresses Less Certainty For Selecting Joint Kinematics During Gait, Max J. Kurz, Nikolaos Stergiou

Journal Articles

This investigation quantitatively characterized the certainty of the aging neuromuscular system in selecting a joint range of motion during gait based on the statistical concept of entropy. Elderly and young control groups walked on a treadmill at a self-selected pace. Joint angles were calculated for the ankle, knee and hip. We hypothesized that the aging group would exhibit less certainty in selecting a joint range of motion during gait. Our results supported this hypothesis, and indicated that aged individuals demonstrated statistically less certainty for the knee (16.8%) and hip (24.6%). We suggest that neurophysiological changes associated with aging may result …

Subtalar And Knee Joint Interaction During Running At Various Stride Lengths, Nikolaos Stergiou, Barry T. Bates, Max J. Kurz

Journal Articles

Background: It has been suggested that during running proper coordination between subtalar pronation/supination and knee flexion/extension via tibial rotation is important to attenuate ground reaction impact forces (GRIF). Lack of coordination over time may produce a wide range of injuries. It was hypothesized that increasing stride length would result in higher GRIF. It was also hypothesized that alterations in stride length would result in changes of the subtalar/knee coordination.

Methods: Six subjects ran under three different stride lengths (normal stride, understride and overstride) at their self-selected pace. Sagittal, rear view kinematic data and GRIF kinetic data were collected. The subtalar/knee …

Quantitation Of Contacts Among Sensory, Motor, And Serotonergic Neurons In The Pedal Ganglion Of Aplysia, Han Zhang, Marcy Wainwright, John H. Byrne, Leonard J. Cleary

Journal Articles

Present models of long-term sensitization in Aplysia californica indicate that the enhanced behavioral response is due, at least in part, to outgrowth of sensory neurons mediating defensive withdrawal reflexes. Presumably, this outgrowth strengthens pre-existing connections by formation of new synapses with follower neurons. However, the relationship between the number of sensorimotor contacts and the physiological strength of the connection has never been examined in intact ganglia. As a first step in addressing this issue, we used confocal microscopy to examine sites of contact between sensory and motor neurons in naive animals. Our results revealed relatively few contacts between physiologically connected …

Compensatory Mechanisms In Anterior Cruciate Ligament Deficiency, Anastasios Papadonikolakis, Lance Cooper, Nikolaos Stergiou, Anastasios D. Georgoulis, Panayotis N. Coucacos

Journal Articles

The literature cites numerous studies involving the analysis of movement patterns in anterior cruciate ligament deficient (ACLD) patients. Although several in vivo biomechanical studies have shown that ACLD patients develop protective mechanisms against degenerative diseases, it seems that these adaptations fail to protect the knee from future pathology. Some authors state that ACLD patients adapt to the injury by avoiding quadriceps contraction during gait when the knee is near full extension. However, others have found increased hamstrings and decreased gastrocnemius activity, which normally contribute to the stability of the knee. It seems that further in vivo biomechanical investigation is required …

Nonlinear Dynamics Indicates Aging Affects Variability During Gait, Ugo H. Buzzi, Nikolaos Stergiou, Max J. Kurz, Patricia A. Hageman, Jack Heidel

Journal Articles

Objective. To investigate the nature of variability present in time series generated from gait parameters of two different age groups via a nonlinear analysis.

Design. Measures of nonlinear dynamics were used to compare kinematic parameters between elderly and young females.

Background. Aging may lead to changes in motor variability during walking, which may explain the large incidence of falls in the elderly.

Methods. Twenty females, 10 younger (20–37 yr) and 10 older (71–79 yr) walked on a treadmill for 30 consecutive gait cycles. Time series from selected kinematic parameters of the right lower extremity were analyzed using nonlinear dynamics. The …

State Constitutional Rights As Resistance To National Power: Toward A Functional Theory Of State Constitutions, James A. Gardner

Journal Articles

In the American legal order, constitutional rights are conventionally understood to apply to and restrain the level of government created by the constitution in which those rights appear. Thus, individual rights in a lower-order constitution are understood to apply solely to the lower level government and to have no relevance to the actions of any higher level of government. This article challenges the conventional understanding by arguing that individual rights appearing in state constitutions can in many circumstances play a meaningful role in restraining the exercise of national power. Specifically, the identification and enforcement of state constitutional rights can serve …

Nonlinear Analysis Of The Development Of Sitting Postural Control, Regina T. Harbourne, Nikolaos Stergiou

Journal Articles

The development of sitting postural control in five normal infants was examined longitudinally at three stages of sitting: Stage 1, when infants could hold up their head and upper trunk, but could not sit independently; Stage 2, when infants began to sit independently briefly; and Stage 3, when infants could sit independently. Methods from nonlinear dynamics were used to analyze center of pressure (COP) data during sitting in terms of stability of the neuromuscular system (Lyapunov Exponent), movement dimensionality (Correlation Dimension), and complexity/regularity (Approximate Entropy). Results indicated significant changes in the nonlinear measures over time, with increased stability and increased …

Caesar, Succession, And The Chastisement Of Rulers, Patrick Martin, John M. Finnis

Journal Articles

Julius Caesar's reign as dictator and praefectus morum for life ended with his assassination in 44 B.C. It was preceded by over four hundred years of consular rule, a system of executive government by two consuls, elected for a one-year term. Consular government began in 509 B.C., ending the hundred-year rule of the Tarquin kings. Three works printed in 1594 recalled for English readers the overthrow of the Tarquins and the establishing of consular government. One was dedicated to the Earl of Essex. Another, by William Shakespeare, was dedicated to Essex's close companion, the Earl of Southampton. The third work …

The Spanning Set Indicates That Variability During The Stance Period Of Running Is Affected By Footwear, Max J. Kurz, Nikolaos Stergiou

Journal Articles

Sensory information the foot receives appears to be related to kinematic variability. Since footwear material densities affect sensory information, footwear may be an important factor that dictates variability. This study hypothesized that modifications in footwear would result in changes in kinematic variability during the running stance period. Subjects ran on a treadmill for three conditions: hard shoe, soft shoe and barefoot. The spanning sets of the mean ensemble curves of the knee and ankle changes for each condition were used to define variability. Variability was significantly larger in the barefoot condition in comparison with the two footwear conditions for both …

But Pierre, If We Can't Think Normatively, What Are We To Do?, John Henry Schlegel

Journal Articles

No abstract provided.

Pierre Schlag And The Temple Of Boredom, David A. Westbrook

Journal Articles

No abstract provided.

Bhartia Hijro Ka Dharma: The Code Of India's Hijra, Joseph T. Bockrath

Journal Articles

No abstract provided.

"We Don't Want Advantages": The Woman Lawyer And Her Quest For Power In Popular Culture, Christine Corcos

Journal Articles

No abstract provided.

Three-Dimensional Tibiofemoral Kinematics Of The Anterior Cruciate Ligament-Deficient And Reconstructed Knee During Walking, Anastasios D. Georgoulis, Anastasios Papadonikolakis, Christos D. Papageorgiou, Argyris Mitsou, Nikolaos Stergiou

Journal Articles

Background: It is possible that gait abnormalities may play a role in the pathogenesis of meniscal or chondral injury as well as osteoarthritis of the knee in patients with anterior cruciate ligament deficiency.

Hypothesis: The three-dimensional kinematics of anterior cruciate ligament-deficient knees are changed even during low-stress activities, such as walking, but can be restored by reconstruction.

Study Design: Case control study.

Methods: Using a three-dimensional optoelectronic gait analysis system, we examined 13 patients with anterior cruciate ligament-deficient knees, 21 patients with anterior cruciate ligament-reconstructed knees, and 10 control subjects with uninjured knees during walking.

Results: Normal patterns of knee …

The Need For A Revitalized Common Law Of The Workplace, William R. Corbett

Journal Articles

No abstract provided.

Choosing The Genetic Makeup Of Children: Our Eugenics Past-Present, And Future?, Michael J. Malinowski

Journal Articles

No abstract provided.

The Bridge Of Roebling And Crane, Joseph T. Bockrath

Journal Articles

No abstract provided.

Law On Remote Islands: The Convergence Of Fact And Fiction, Joseph Bockrath

Journal Articles

No abstract provided.

Prosecutors, Prejudices And Justice: Observations On Presuming Innocence In Popular Culture And Law, Christine Corcos

Journal Articles

No abstract provided.

Legal Fictions: Irony, Storytelling, Truth, And Justice In The Modern Courtroom Drama, Christine Corcos

Journal Articles

No abstract provided.

Canonical Remedies In Medieval Marriage Law: The Contributions Of Legal Practice Founding, Richard H. Helmholz

Journal Articles

No abstract provided.

Transfer Regulations And Cost-Effectiveness, Eric Posner

Journal Articles

No abstract provided.

Noncitizen Students And Immigration Policy Post-9/11, Victor C. Romero

Journal Articles

The purpose of this article is to describe the post-9/11 world for noncitizen students and scholars in light of recent federal legislation, specifically focusing on three laws: the USA-PATRIOT Act of 2001, the Border Commuter Student Act of 2002, and the proposed Capital Student Adjustment Act, currently pending in Congress. In all three, Congress is seen trying to walk the fine line between providing fair access to postsecondary education to noncitizen students and guarding against the possibility that such institutions are being used as a springboard for terrorist activity.