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\"An authoritative and accessible study of the foundations, development and enduring legacy of the cultures of Greece and Rome centers on 10 locations of seminal importance to the development of Classical civilization, including Troy, Athens and Sparta. By the author of The Ancient Olympics.\"--NoveList.

In the history of diagnostics, breath analysis was one of the first method used until the breakthrough of biochemical testing technology. Today, breath analysis has made a comeback with the development of gas analyzers and e‐noses, demonstrating its power in its applicability for diagnosing a wide range of diseases. The physical basis of multiple chemical sensitivity (MCS), an emerging environmental disease, is difficult to understand because it is based on the scenario of chronic hypoxia, with a complex of chemical compounds that trigger the syndrome and result in multiple symptoms. The aim of this study was to investigate MCS by analyzing exhaled volatile organic compounds (VOCs). The volatile, metabolic picture could be a putative gold standard for understanding and diagnosing the disease. The study was based on recording in resting condition using the noninvasive passive e‐nose contactless breath test, the Olfactory Real‐Time Volatile Organic Compounds (ORT‐VOC) test in MCS, and control samples. The VOCs profile distinguished between disease and health. It also distinguished the gender‐related volatile profile with significant robustness. The results trace a putative compensatory physiological pathway elicited by increased lactate, leading to acidosis, and hyperventilation, resulting in the production of specific VOCs. We conclude that breath testing is a valuable tool to investigate the hypoxia‐related VOC profile, facilitating MCS diagnosis. MCS results in a compensatory physiological pathway elicited by the increase in lactate, leading to acidosis and hyperventilation. ORT‐VOC breath test is a valuable tool to investigate the hypoxia‐related VOC profile. ORT‐VOC breath test is facilitating the MCS diagnosis.

Abstract Background Research suggests that effort-cost decision-making (ECDM), the estimation of work required to obtain reward, may be a relevant framework for understanding motivational impairment in psychotic and mood pathology. Specifically, research has suggested that people with psychotic and mood pathology experience effort as more costly than controls, and thus pursue effortful goals less frequently. This study examined ECDM across psychotic and mood pathology. Hypothesis We hypothesized that patient groups would show reduced willingness to expend effort compared to controls. Study Design People with schizophrenia (N = 33), schizoaffective disorder (N = 28), bipolar disorder (N = 39), major depressive disorder (N = 40), and controls (N = 70) completed a physical ECDM task. Participants decided between completing a low-effort or high-effort option for small or larger rewards, respectively. Reward magnitude, reward probability, and effort magnitude varied trial-by-trial. Data were analyzed using standard and hierarchical logistic regression analyses to assess the subject-specific contribution of various factors to choice. Negative symptoms were measured with a clinician-rated interview. Study Results There was a significant effect of group, driven by reduced choice of high-effort options in schizophrenia. Hierarchical logistic regression revealed that reduced choice of high-effort options in schizophrenia was driven by weaker contributions of probability information. Use of reward information was inversely associated with motivational impairment in schizophrenia. Surprisingly, individuals with major depressive disorder and bipolar disorder did not differ from controls. Conclusions Our results provide support for ECDM deficits in schizophrenia. Additionally, differences between groups in ECDM suggest a seemingly similar behavioral phenotype, reduced motivation, could arise from disparate mechanisms.

Efforts to develop effective disease-modifying drugs to treat osteoarthritis have so far proved unsuccessful with a number of promising drug candidates from pre-clinical studies failing to show efficacy in clinical trials. It is therefore timely to re-evaluate our current understanding of osteoarthritis pathogenesis and the similarities and differences in disease development between commonly used pre-clinical mouse models and human patients. There is substantial heterogeneity between patients presenting with osteoarthritis and mounting evidence that the pathways involved in osteoarthritis (e.g. Wnt signalling) differ between patient sub-groups. There is also emerging evidence that the pathways involved in osteoarthritis differ between the STR/ort mouse model (the most extensively studied mouse model of spontaneously occurring osteoarthritis) and injury-induced osteoarthritis mouse models. For instance, while canonical Wnt signalling is upregulated in the synovium and cartilage at an early stage of disease in injury-induced osteoarthritis mouse models, this does not appear to be the case in the STR/ort mouse. Such findings may prove insightful for understanding the heterogeneity in mechanisms involved in osteoarthritis pathogenesis in human disease. However, it is important to recognise that there are differences between mice and humans in osteoarthritis pathogenesis. A much more extensive array of pathological changes are evident in osteoarthritic joints in individual mice with osteoarthritis compared to individual patients. There are also specified differences in the pathways involved in disease development. For instance, although increased TGF-β signalling is implicated in osteoarthritis development in both mouse models of osteoarthritis and human disease, in mice, this is mainly mediated through TGF-β3 whereas in humans, it is through TGF-β1. Studies in other tissues have shown TGF-β1 is more potent than TGF-β3 in inducing the switch to SMAD1/5 signalling that occurs in osteoarthritic cartilage and that TGF-β1 and TGF-β3 have opposing effects on fibrosis. It is therefore possible that the relative contribution of TGF-β signalling to joint pathology in osteoarthritis differs between murine models and humans. Understanding the similarities and differences in osteoarthritis pathogenesis between mouse models and humans is critical for understanding the translational potential of findings from pre-clinical studies.

Respiratory diseases in birds generate sanitary and economic impacts and may be related to the environment and climate. Mycoplasma gallisepticum, Ornithobacterium rhinotracheale (ORT), Pasteurella multocida, Avibacterium paragallinarum, Escherichia coli, Riemerella anatipestifer, and Bordetella avium are among the most important avian respiratory pathogens. ORT is responsible for causing ornitobacteriosis, a disease characterized by clinical signs ranging from mild to severe respiratory conditions, with high mortality rates, mainly affecting turkeys and chickens. The first report of ornitobacteriosis was in 1981 in Germany. Despite its importance, few studies on ORT have been published. In addition, the presence of this pathogen has been neglected in poultry farms, mainly due to the lack of appropriate diagnostic protocols. The lack of correct isolation and diagnostic protocols along with inappropriate use of antimicrobial agents have been contributing to treatment failure. Due to its economic importance to the poultry industry, ornitobacteriosis should be monitored and included in national programs for the prevention and control of avian respiratory diseases. This review aimed to update and discuss important issues related to ORT since this pathogen has great economic and sanitary implications for the chicken production chain.

This article is based on a series of observations made in the offices of the Dakar Labour Inspectorate between 2020 and 2023 and describes how labour is regulated by the inspection agents. The recent developments in the Labour Code deprived the department of virtually all its sanction powers, and the authority of labour inspectors depends on their ability to maintain people's belief in their power rather on than their actual powers of punishment. The work of inspection agents is a function of the law, of course, but it is also the product of the dynamics of the interactions among these agents, workers and employers. This is the only way the state can hope to impose its authority on the heart of labour relations.

Postoperative opioid-induced respiratory depression (POIRD) is a preventable perioperative cause of morbidity and mortality. A validated POIRD risk stratification tool could reduce these complications. 3 pre-existing validated opioid tools; and specific risk factors identified from these tools; were examined in this retrospective case-control study to determine if they could assess POIRD risk in patients discharged to hospital floors from the Post-Anesthesia Care Unit (PACU). Our dataset includes 126 matched patients who underwent surgery at the University of Tennessee Medical Center from January 2019 to December 2021. All patients that were related to active traumas or burns were excluded from this study. Escalation of care secondary to respiratory failure (an increase in respiratory support with movement to an intensive care unit/stepdown unit or patient expiration secondary to respiratory failure) with and without naloxone administration was the primary endpoint; with the subgroup that received naloxone being the surrogate POIRD endpoint. Escalation of care secondary to respiratory failure; regardless of naloxone use; was a secondary endpoint. There was no association between the 3 opioid tools evaluated with the POIRD surrogate endpoint or escalation of care. Bipolar disorder (OR 3.68; 95% CI 1.11-9.56) and a history of substance abuse (OR 26.33; 95% CI 5.18-119.02) were significant risk factors that contributed to escalation of care secondary to respiratory failure. A history of substance abuse was found to have a significant association with escalation of care secondary to respiratory failure with naloxone administration (OR=6.886; 95% CI 2.02-23.56). While we were unable to identify a tool to stratify POIRD risk; patients with bipolar disorder and a history of substance abuse are at an increased risk of postoperative respiratory failure requiring escalation of care; with a history of substance abuse being associated with POIRD.

Ornithobacterium rhinotracheale (ORT) has been associated with poultry respiratory disease worldwide. The organism is fastidious and isolation is challenging. One TaqMan real-time PCR (qPCR) assay has been developed for the detection of ORT. However, during validating the ORT qPCR, the assay performance was suboptimal. During the in silico evaluation, deviations from the basic parameters for primers and probes designs (e.g., presence of stable undesirable primer-dimers) were observed. The suboptimal design led to low efficiency and low sensitivity of the assay. Initially, modification on the probe was carried out to improve the performance of the assay. However, the assay’s performance (efficiency and sensitivity) was still suboptimal. In this manuscript, we describe the development of a new qPCR assay and the comparison of its performance with the currently available assay. A highly efficient, sensitive, and specific qPCR assay was developed with approximately 1000-folds reduction in the limit of detection (from 3 × 106 plasmid DNA copies/mL to 1 × 103 plasmid DNA copies/mL). Additionally, the efficiency of the new assay (E = 98.70%) was significantly better than the current assay (E = 73.18%). The newly developed assay is an improved diagnostic tool for the sensitive and efficient diagnosis of ORT from clinical samples.

Termed by the Lancet, as “potentially the most important medical advance of the twentieth century,” therapy with oral rehydration solutions (ORSs) has been essential to reducing mortality in children less than 5 years (under five) with infectious gastroenteritis and diarrhea. The target of the diarrhea-control programs in the 1990s was to achieve ORS use in 80% of diarrhea cases by the year 2000. Nevertheless, nearly 20 years later, global uptake remains limited to only a third of the cases. Our analysis shows that from 1990 to 2017, mean ORS coverage in Countdown countries [the 81 Countdown-to-2030 priority countries, which together account for 95% of maternal deaths and 90% of under-five deaths] increased from ~ 30% to nearly 40%. Flawed government policies, inadequate supplies, and lack of awareness among health workers and communities all contributed to this shortfall in coverage. Moreover, imperfect measurement methodology is implicated in questionable coverage data. A multipronged approach focusing on the manufacture, supply, training, and behavioral change is essential to ensure that ORS is used in all epidemic diarrhea cases globally, especially in the under-five population.

We investigate the performance of two commonly used pricing schemes—hourly-rate contract and two-part tariff—in service environments where the buyer’s valuation is invisible to the service provider and the provider’s effort may not be visible to the buyer. In the private effort environment, we further distinguish between situations where the contract may be based on the outcome or on the effort reported by the provider. We show that under the two-part tariff, when effort is private, the provider can achieve the same profit as under public effort by contracting on reported effort and will be worse off by contracting on outcome. Under the hourly-rate contract, compared with the public effort case, the provider may be better or worse off in keeping effort private and contracting on the reported effort, and the trade-off is affected by the degree of outcome uncertainty in a nontrivial way. We find that a provider’s profits under an hourly-rate contract are as good as under a two-part tariff over a sizable parameter regime when contracting on reported effort. The online appendix is available at https://doi.org/10.1287/mnsc.2017.2743 . This paper was accepted by Vishal Gaur, operations management.