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The Iranian petroleum crisis and United States national security.

The U.S. case against Iran is based on Iran's deceptions regarding nuclear weapons development. This case is buttressed by assertions that a state so petroleum-rich cannot need nuclear power to preserve exports, as Iran claims. The U.S. infers, therefore, that Iran's entire nuclear technology program must pertain to weapons development. However, some industry analysts project an Irani oil export decline [e.g., Clark JR (2005) Oil Gas J 103(18):34-39]. If such a decline is occurring, Iran's claim to need nuclear power could be genuine. Because Iran's government relies on monopoly proceeds from oil exports for most revenue, it could become politically vulnerable if exports decline. Here, we survey the political economy of Irani petroleum for evidence of this decline. We define Iran's export decline rate (edr) as its summed rates of depletion and domestic demand growth, which we find equals 10-12%. We estimate marginal cost per barrel for additions to Irani production capacity, from which we derive the "standstill" investment required to offset edr. We then compare the standstill investment to actual investment, which has been inadequate to offset edr. Even if a relatively optimistic schedule of future capacity addition is met, the ratio of 2011 to 2006 exports will be only 0.40-0.52. A more probable scenario is that, absent some change in Irani policy, this ratio will be 0.33-0.46 with exports declining to zero by 2014-2015. Energy subsidies, hostility to foreign investment, and inefficiencies of its state-planned economy underlie Iran's problem, which has no relation to "peak oil."

Commerce↗

A Trojan horse transition state analogue generated by MgF3- formation in an enzyme active site.

Identifying how enzymes stabilize high-energy species along the reaction pathway is central to explaining their enormous rate acceleration. beta-Phosphoglucomutase catalyses the isomerization of beta-glucose-1-phosphate to beta-glucose-6-phosphate and appeared to be unique in its ability to stabilize a high-energy pentacoordinate phosphorane intermediate sufficiently to be directly observable in the enzyme active site. Using (19)F-NMR and kinetic analysis, we report that the complex that forms is not the postulated high-energy reaction intermediate, but a deceptively similar transition state analogue in which MgF(3)(-) mimics the transferring PO(3)(-) moiety. Here we present a detailed characterization of the metal ion-fluoride complex bound to the enzyme active site in solution, which reveals the molecular mechanism for fluoride inhibition of beta-phosphoglucomutase. This NMR methodology has a general application in identifying specific interactions between fluoride complexes and proteins and resolving structural assignments that are indistinguishable by x-ray crystallography.

Amides↗

Antimalarial quinones for prophylaxis based on a rationale of inhibition of electron transfer in Plasmodium.

Knowledge of the biochemistry of Plasmodium is emerging as a new field. Previous studies showed that the parasite apparently requires electron transfer for energy, and techniques to study such energy mechanisms are available. The discovery of the existence of coenzyme Q(8) in Plasmodium implies an indispensable functionality for this redox entity in the electron transfer of the parasite, as coenzyme Q(n) similarily functions in other forms of life. Effective antimalarial activity in prophylaxis has been demonstrated in sporozoite-induced infections by Plasmodium gallinaceum in chicks by several representatives of 7-alkylmercapto-6-hydroxy-5,8-quinolinequinones. The absence of toxicity in this assay even at greatly elevated dosage underscores the achievement of selectivity and safety to the host for the potential utilization of antimetabolites of coenzyme Q(n) as medicinals. Seven new 7-alkylmercapto-6-hydroxy-5,8-quinoline-quinones were synthesized. The structural variations of the 7-alkylmercapto group in relationship to the antimalarial activities reveal substantial differences in biological activities, which can reflect molecular specificities of enzyme sites and which are not evident from the deceptively minor structural differences in the alkylmercapto groups. These analogs of coenzyme Q(8) having effective antimalarial activity are known to inhibit mammalian coenzyme Q(n) enzymes, and could be useful in elucidation of the basic electron transfer mechanisms of Plasmodium.

Animals↗

Alternative male life histories in bluegill sunfish.

MALE BLUEGILL SUNFISH ARE SHOWN TO HAVE TWO ALTERNATIVE MATING STRATEGIES: cuckoldry or parental care. Cuckolder males first mature at age 2. They follow a developmental sequence of sneaking and then mimicking female behavior to deceptively gain access to spawnings. Males who become parentals (construct nests, attract females, provide brood care) delay maturation until age 7. The parental investment of these males is parasitized by the cuckolders. This system is an example of a truly parasitically dependent mating strategy in vertebrates. A natural selection model is developed to predict the equilibrium frequencies of the two male types. A preliminary test of the model provides qualitative agreement.

Journal Article↗

When can ants discriminate the sex of brood? A new aspect of queen-worker conflict.

The stage in preimaginal ontogeny at which the sexes can first be distinguished has important implications for queen-worker conflict in social insects. If workers are unable to sex larvae at an early instar, their opportunity to control colony reproductive strategies may be limited. In addition, by concealing the sex of her sons for some portion of development, the queen could protect them from the workers' attempts to substitute their own sons or to skew the numerical sex ratio. In a series of choice experiments, workers of the carpenter ant, Camponotus floridanus, failed to discriminate the sex of several stages of larvae but did retrieve female pupae significantly more rapidly than male pupae. Our results suggest that in this species, sex may not become detectable until pupation, which is consistent with sexual deception as an aspect of queen control.

Journal Article↗

Surface plasmon resonance studies resolve the enigmatic endotoxin neutralizing activity of polymyxin B.

Polymyxin B (PMB), a cyclic cationic peptide antibiotic, despite its severe side effects continues to occupy a premiere position for treating endotoxicosis. Its mode of neutralization of endotoxin has remained elusive for the last three decades. Several synthetic peptide mimics of PMB, capable of binding endotoxin, have been made. However, the binding ability alone appears to be a deceptive indicator of endotoxin neutralizing activity as molecules with similar binding propensities could either sequester or opsonize the toxin. Hence identification of additional physical parameters which describe adequately the outcome of PMB-endotoxin interaction become imperative. Surface plasmon resonance (SPR) studies reported here show that several mimics of PMB despite exhibiting lipopolysaccharide binding affinities comparable with it but, unlike it, do not sequester the endotoxin. These studies thus provide a striking illustration of the difference in the behavior of PMB, vis a vis its mimics toward the endotoxin lamellae, and define further, in chemical terms, mechanism of the action of PMB and allow us to posit that the design of molecules as effective antidotes for sepsis should incorporate the ability to sequester endotoxin specifically.

Amino Acid Sequence↗

Detergents as tools in membrane biochemistry.

Detergents are invaluable tools for studying membrane proteins. However, these deceptively simple, amphipathic molecules exhibit complex behavior when they self-associate and interact with other molecules. The phase behavior and assembled structures of detergents are markedly influenced not only by their unique chemical and physical properties but also by concentration, ionic conditions, and the presence of other lipids and proteins. In this minireview, we discuss the various aggregate forms detergents assume and some misconceptions about their structure. The distinction between detergents and the membrane lipids that they may (or may not) replace is emphasized in the most recent high resolution structures of membrane proteins. Detergents are clearly friends and foes, but with the knowledge of how they work, we can use the increasing variety of detergents to our advantage.

Cell Membrane↗

Münchhausen by proxy syndrome in clinical child neuropsychology: a case presenting with neuropsychological symptoms.

Münchhausen by proxy syndrome (MBPS) is a rare but dramatic variant of child abuse. In MBPS adults, mostly the mother, invent, manipulate, or produce the child's illness, and as a consequence the child has to undergo numerous diagnostic or treatment procedures. Typically, valid information about the etiology of the child's illness is withheld by the parents, and reversible symptoms vanish, when the child and the responsible adults are separated. Although valid statistical data about the epidemiology of MBPS are not available, MBPS should be considered more often than normally recognized. Neurological and neuropsychological presentations including developmental delays and learning problems appear to be common among MBPS cases so that clinical child neuropsychologists should be aware of this problem and consider MBPS at least in some of the mysterious cases that come to their attention. The present study describes a case of MBPS in which neurological and neuropsychological symptoms predominate. It presents a MBPS variant that is characterized by developmental delays and learning problems induced by unnecessary isolation at home, hospitalization, and treatment procedures. In the present case MBPS was at first suspected following neuropsychological assessment, since some of the main features of non-authenticity of symptom presentation gave cause for suspecting deceptive behavior on the mother's (and possibly also on the maternal grandmother's) side.

Adult↗

Truth telling in medicine: the Confucian view.

Truth-telling to competent patients is widely affirmed as a cardinal moral and biomedical obligation in contemporary Western medical practice. In contrast, Chinese medical ethics remains committed to hiding the truth as well as to lying when necessary to achieve the family's view of the best interests of the patient. This essay intends to provide an account of the framing commitments that would both justify physician deception and have it function in a way authentically grounded in the familist moral concerns of Confucianism. It reflects on the moral conditions and possibilities for sustaining a Confucian understanding of truth-telling and consent in mainland China.

China↗

Psychophysiological and clinical implications of the coincidence of high hypnotic ability and high neuroticism during threat perception in somatization disorders.

The electrodermal response to cognitive threat of unhypnotized female patients with somatic symptoms and high on both hypnotic ability and neuroticism (H-H) was found to be significantly higher (p < .01) than that of a matched group of female patients moderate on hypnotic ability and low on neuroticism (M-L). On verbal report the H-H and the M-L groups did not differ, but they were significantly different on a measure of self-deception (L scale) or repression. The above findings are consistent with predictions from the High Risk Model of Threat Perception (HRMTP), which states that people in the H-H group are both chronically and acutely more reactive to threat than the people in the M-L group. This finding may have important theoretical, clinical, and financial implications for the diagnosis, therapy, and prevention of somatization disorders seen in primary medical care.

Adult↗

Ethical evaluation of hypnosis research: a survey of investigators and their institutional review boards.

We surveyed hypnosis researchers and Institutional Review Boards (IRBs) with regard to the ethical evaluation of research protocols. Researchers and IRB administrators were independently surveyed within the same institutions. Both objective and free response items were used to address substantive issues such as deception and at-risk populations, as well as practical matters such as paperwork. Parallel questions allowed a point-counterpoint between researchers and IRBs. Overall, the results suggest that IRBs do not treat hypnosis research differently than other types of research. We end with recommendations for facilitating interactions between hypnosis researchers and their IRBs.

Adult↗

Admissibility and per se exclusion of hypnotically elicited recall in American courts of law.

State v. Mack (1980) ruled that hypnotically elicited testimony is per se excluded from Minnesota law courts; this court also ruled that police could employ hypnosis in an attempt to construct an independently corroborated case. In recent years, there have been moves to rescind this exclusion; this raises a question of the probative value of such additional information when it is uncorroborated. This situation is compared with that of the polygraph as an index of deception: Like hypnosis, it is excluded per se in most American jurisdictions. Some legal decisions in Wisconsin are used to illustrate one alternative to the per se exclusion approach. Admissibility of scientific evidence in American courts of law has been based on a criterion of "general acceptability within the relevant scientific community," as first elucidated in Frye v. United States (1923). Recently, the U.S. Supreme Court overturned the Frye decision in Daubert v. Merrell Dow Pharmaceuticals, Inc. (1993), by making general acceptability but one of several admissibility criteria. Three Daubert-based decisions, one involving hypnosis and all concerned with "recovered repressed memories," indicate some problems in law posed by Daubert.

Crime↗

Meaning in life depth in the active married elderly.

To discover if elderly people have developed a deeper meaning in life than younger individuals, a sample of active married elderly people was compared to a group of younger adults. Two dimensions of meaning in life depth were investigated. The first was a self-suitability measure indicating comfort with one's own meaning, measured by Crumbaugh and Maholick's (1969) Purpose in Life Test. The second was an external validation measure derived from a statement about their own strongest meaning in life, written by the participants and rated for depth by two outside judges. The older group scored significantly higher than the younger adults on the self-suitability measure and significantly lower on the external validation measure. Such results could mean that toward the end of life we are better able to appreciate life's beauty though less able to communicate our depth of appreciation to others. An alternative interpretation of the results is that the elderly participants were engaging in self-deception.

Aged↗

Benign essential tremor: features that aid in diagnosis.

Benign essential tremor can be distinguished from parkinsonism by its rapid frequency, the involvement of voice and head, and the common finding of a positive family history. Essential tremor is less incapacitating than parkinsonism and less inexorably progressive. Propranolol (Inderal) is the best therapy available at this time. The transient beneficial effect of alcohol is deceptive. Patients with this disorder, although they find the tremor embarrassing, are generally not incapacitated and are otherwise in excellent health.

Adolescent↗

Factitious illness. Dramatic deceit versus reality.

Patients with factitious illness present a particular challenge. Because they may be clever in their deception, they may be difficult to recognize as the fabricators of their apparent medical problem(s). Findings vary from relatively simple problems such as fever to more complex and often dramatic complaints of bleeding and pain. Differential diagnosis should include other, often more easily managed disorders such as somatoform disorders, malingering, antisocial personality, and schizophrenia. Because no definitive treatment exists, patients often consult many physicians, often in diverse geographical locations.

Diagnosis, Differential↗

Mechanical properties of the gastro-esophageal junction in health, achalasia, and scleroderma.

BACKGROUND: Manometric assessment of the gastro-esophageal junction (GEJ) is deceptive in that ignores key dynamic properties of the junction, such as resistance to flow and compliance. Our aim was to investigate the mechanical properties of the GEJ comprising intraluminal pressure (measured by manometry), resistance to flow and compliance (measured by resistometry). METHODS: We studied 8 healthy subjects, 11 patients with achalasia and 11 patients with scleroderma. We used a pneumatic resistometer, previously developed and validated in our laboratory. The resistometer consists of a flaccid polyurethane 5-cm cylinder connected to an electronically regulated nitrogen-injection system; the instrument records nitrogen flow through the cylinder while maintaining a constant pressure gradient between its proximal and distal ends. By placing the cylinder successively in the proximal stomach and along the GEJ we measured the GEJ-gastric resistance gradient (GEJ resistance minus gastric resistance) and were able to calculate the cumulative resistance (sum of resistance exerted at each pressure level), peak resistance (at any injection pressure), nil resistance point (injection pressure in mmHg at which GEJ resistance equals gastric resistance), and compliance slope (flow/pressure relationship). RESULTS: We found that GEJ resistance to flow (cumulative resistance, peak resistance, and nil resistance point) is significantly increased in achalasia and decreased in scleroderma (P < 0.05 versus health) while GEJ compliance is diminished in achalasia (P < 0.05 versus health) and normal in scleroderma. CONCLUSION: Achalasia is a disease characterized by increased GEJ resistance and rigidity. By contrast, although scleroderma is characterized by decreased GEJ resistance, GEJ compliance may be normal.

Adult↗

Symptom, screen memory, and dream. The complexity of mental representation and disguise.

The relationship between screen memory, symptom and dream is not immediately obvious. All three are mental products to be sure and therefore they must have complex connections with each other, however far apart their genetic origin may be, however discreet they may seem from each other in the mind's archival filing system. A case is presented in which "the content" of a screen memory and a symptom and a subsequent dream shared certain similarities. The "content" became the subject matter of elaborate free associative explication in the context of analytic process and transference neurosis. As all three products began to "converse" with each other in the psychological fugue known as analytic process, the seamlessness of the human mind and its complemental series of complexities unscreened itself, as illusion became its own mirror rather than an exercise in perpetual self deception. A screen memory, a symptom, and a dream were show to be only façades of an architectural complexity they hinted at to be sure, but without analysis were unable to reveal.

Adult↗

PTSD, risk factors, and expectations among women having a baby: a two-wave longitudinal study.

INTRODUCTION: The aim of the study was to evaluate the incidence of chronic post-traumatic stress disorder (PTSD) after childbirth in relation to pre-partum variables (personality characteristics, anamnestic risk factors) and intra-partum obstetrical and neonatal variables. Since expectations before an event could modify the perceptions, reactions, and satisfaction afterward, the representations of the idealized delivery were carefully analyzed. Moreover, the real and desired help perception from physicians and family members were separately considered during pregnancy and after delivery in relation to PTSD. METHOD: The study was carried out submitting a questionnaire to pregnant women twice: firstly when women were in their 38 << 42 gestational week (Time 1) and secondly after 3-6 months from childbirth (Time 2). 93 women were recruited at a University City Hospital in Milan, Italy. PTSD subscales, depression, and anxiety levels were also assessed. RESULTS: 2.4% of women had a complete PTSD, while 32.1% of them resulted in having one or two positive subscales of symptoms: 15.5% (N = 13) had a positive intrusion subscale, 25.0% (N = 21) had a positive arousal subscale, while only 3.6% (N = 3) had a positive avoidance subscale. Pre-delivery depression influences PTSD, but only for the intrusion subscale. Pre-delivery physical risk factors are linked to PTSD on the avoidance subscale. At Time 2 depression and PTSD are often present simultaneously. Given the high percentage of healthy newborns, intra-partum obstetrical variables do not seem to influence PTSD. High trait anxiety distinctively coexists with a specific expected delivery and a 'deception' in desired and real support from professionals. CONCLUSIONS: Childbirth is a risk condition for PTSD, depression during pregnancy influences the intrusion subscale, while having physical problems influences the arousal subscale. Expectations and support are modulated by the anxiety levels and they are not directly related to chronic PTSD.

Adult↗