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THE development of aircraft penumatic equipment has progressed so satisfactorily in recent years that actuation of vital services by means of compressed air is becoming increasingly popular. In this brief review of developments to date an attempt will be made to show how the air which has been made available as a result of compressor improvements is utilized and by way of introduction it may be of interest to recall some of the bold experiments which were made in earlier years.

Under this heading are published regularly abstracts of all Reports and Memoranda of the Aeronautical Research Council, Reports and Techical Memoranda of the United States National Advisory Committee for Aeronautics and publications of other similar Research Bodies as issued

Under this heading are published monthly news of recent professional appointments, industrial developments and business changes, etc.

Airspeed Limited of Christchurch Aerodrome, Hampshire, announces that Major Hereward de Havilland, D.S.O., hasjoined the Board of Directors of the Company and he and Mr J. Liddell arc appointed Joint Managing Directors. They will share the responsibility for the company's administration. Mr A. Townsley, as works director, will devote all his attention to increasing production activities, which include the contribution made to de Havilland manufacture as a whole. The positions of Mr A. E. Hagg, as technical director, Mr P. E. Gordon‐Marshall, as sales director, and Messrs F. T. Hearle and F. E. N. St Barbe, as de Havilland directors on the Airspeed board, remain unchanged.

IN a recent paper1 the author suggested that Lin's reduced penultimate remainder process could still be used to find the real or complex linear factors of polynomials of any degree, even when the process originally described by Lin2 was divergent, provided that the initial approximation to the linear factor being sought, and the two succeeding iterates, could be regarded as differing from the root sought by a small quantity of the first order. The main principle used was that in this linear case the convergence or divergence of the successive iterates to or from the root being sought was purely geometric, so that (for a sufficiently close starting approximation) the root being sought could be deduced from two iterations; complex numbers, however, might be involved in the iteration process.

In a systemic approach, a ship is a system in which people and organizations interact directly and indirectly in all processes from construction, during the route and at the destination, throughout its useful life, until eventual scrapping or disposal process. The purpose of this paper is to take on the UN 2030 Agenda ‒ Goal 14 to propose a management model that meets environmental guidelines for assessing impacts caused by the cruise ships.

To verify the proposed model, a quantitative survey using non-probability purposive sampling was conducted among ports, environmental sustainability experts and ocean cruise companies. The empirical data were analyzed using descriptive statistics and structural equation modeling.

Findings have confirmed five environmental requirements that shipping companies must manage on their cruise ships to meet Goal 14: input management, waste management, air quality, energy management and water management. Adopting and disseminating sustainable development models provides transparent information about actions taken and results of environmental management, and it may change the perception of the organization’s image, which is relevant to win and maintain environment-friendly customers, adding intangible value to the tourism product.

One of the limitations of the study is the research sample, especially ocean cruise companies, which can have biased results, as they are potential sources of environmental impacts. However, this was not the case, since the answers were similar to those of the other two groups surveyed.

The originality of the study is justified by researchers who argue that information provided by shipping companies on sustainability is very limited, as according to previous research, the convergence between strategy formulation model and environmental sustainability as a principle to be incorporated into the management of oceangoing vessels has not been studied.

The prevalence of thyroid abnormalities among 831 sexual, violent, and non‐violent non‐sex offenders was found to be greater than found in the general population. Thyroid abnormalities were most common among violent offenders and among sex offenders who victimized children. Thyroid disorders were associated with psychotic diagnoses, delusions, mania, suicidal thoughts, and showed a trend to more suicide attempts. These disorders were undiagnosed in 49.1% of the cases prior to the present clinical assessment. Of these, 59.3% faced their first criminal charges, and the undiagnosed thyroid abnormalities may be important in the offenders’ treatment and may be possible legal mitigating factors in some offenses. Results indicate that a routine endocrine evaluation with blood tests would be a valuable addition to the assessment of violent and sexual offenders.

This study investigates the impact and role of digital twin technology in building automation (DTBA) from a sustainability viewpoint. It aims to enhance the understanding of how DTBA can boost efficiency, optimize quality and support sustainable practices in contemporary construction. By exploring the integration of DTBA with sustainable practices, the study seeks to demonstrate how DT can revolutionize building management and operations, leading to significant improvements in resource efficiency, environmental impact and overall operational excellence.

This research employs a bibliographic analysis and systematic review of 176 publications from the past five years (January 1, 2019 to December 31, 2023), focusing on the application and development of DTBA. The study methodically analyzes current trends, identifies research gaps and suggests future directions by synthesizing data from various studies, offering a comprehensive overview of the current state of DTBA research. The approach combines quantitative and qualitative analyses to provide robust insights into the advancements and challenges in the field.

The review identifies key development areas in DTBA, such as energy and environmental management, resource utilization within a circular economy and technology integration and interoperability. It highlights the necessity for further research to maximize DTBA’s potential in sustainable building automation. The findings suggest that while significant progress has been made, there is a critical need for innovations in data interoperability, predictive analytics and the integration of renewable energy sources to fully realize the benefits of DTBA in enhancing building sustainability.

This paper provides a thorough review of DTBA from a sustainability perspective, offering valuable insights into its current applications and future development potential. It serves as a crucial resource for researchers and practitioners looking to advance sustainable practices in the construction sector using DT technology. By bridging the gap between theoretical research and practical applications, the paper underscores the transformative potential of DTBA in driving sustainable development and provides a roadmap for future research and innovation in the field.

This study aims to conduct a systematic literature review to investigate the mental health problems during COVID-19 and the role of nutrition in minimizing mental and health-related issues during COVID-19.

A literature search was done electronically on April–May 2022 in the databases Google Scholar, PubMed and Cochrane Library, reviewing all the articles published in English. There were no limitations for the study (such as study design, region or any time frame). The quality assessment was done. The beginning database search picked out a total of 654 articles, 47 in PubMed, 575 in Google Scholar, 22 in Cochrane Library and 10 records from other sources. A total of 565 (duplicates found 89) were found after removing the duplicated articles, after reading the title and abstracts were further decreased to 88 full-text articles. These 88 studies went for full-text analysis, which excluded 56 studies and generated a final 32 articles for systemic analysis. The quality of the included study for the systematic review was assessed in two ways: one is evidence-based and another one on the JBI checklist.

People in social isolation and home quarantine suffer from severe anxiety, stress, depression, loneliness, anger and panic attack. During COVID-19, the vital role of diet and nutrients in mental health has been acknowledged and helps mitigate COVID-19 infection. Many studies showed stress and anxiety due to increased unhealthy eating and lifestyle practices.

This review will explain the interlink between diet and mental health because what we eat and think is interconnected with the gut–brain axis. The dietary elements and psychobiotic help in improving the immune system and psychological distress during the pandemic. This paper describes the role of different nutrients, psychobiotics and phytochemicals, to minimize mental and health issues during the COVID-19 pandemic. This paper also contains a balanced diet plan to withstand COVID-19.