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The purpose of this paper is to review the current state of research on the various biological agents that could cause deterioration of paper materials and possible intervention strategies against these biotic agents in the tropics.

Recent literature in the tropics is reviewed to gain insight into the problems that confront libraries in the tropics as regards the biological deterioration of library materials.

The paper identifies moulds as the most important biodeteriorating agents of library materials. In addition to destroying, disfiguring and staining books, the moulds have been linked to numerous adverse human health effects that fall into three categories: allergic, toxic and infectious. The other biological agents include bacteria, insects and rodents. The important insects in tropical environment are cockroaches and termites. The warm humid tropical conditions and dirty environment trigger/promote biodeterioration processes and make book deterioration to be more pronounced in the tropics than in the temperate regions.

Physical visits to the libraries were not carried out and the conclusions reached were based on evidence from scientific literature on the subject in the tropics.

A very useful source of information on how to curb the menace of biological agents against the destruction of library materials in the tropics. These include training programmes for library staff on conservation and preservation of library collections, the creation of awareness on the issue among library users, the adoption of good house keeping practices and modification of storage environment to make them unsuitable for the biodeteriogens. It is recommended that libraries and archives in tropical countries should have preservation guidelines and integrated pest management teams and should also cooperate with scientists in relevant disciplines to be able to find lasting solutions to the problem of biodeterioration of library materials.

This paper looks into the neglected area of biological deterioration of papers which is the main information carrier in libraries. It provides very useful and practical suggestions that libraries in the tropics could adopt to tackle the menace of biological agents.

The argument presented in this paper is based on distinctive and exploitable differences which merit putting eco-tourists, eco-resorts and the coastal tropics into categories of their own. Such differences should inform planning and design process when working in this environment, which is both very sensitive and valuable. The paper aims to describe the main characteristics of the coastal tropics as a climate targeted by eco-tourism. Differences between eco-tourists and residents are presented through definition of comfort. Climatic and other factors influencing comfort limits are at the core of discussion, in which passive design is seen as the most appropriate response to challenges of the tropical coast setting. The design opportunities for the desirable climate modifications in eco-friendly resorts together with some passive design features are briefly presented. These architectural design solutions are set against theoretical principles specific to tropical coastal regions. The focus is on human responses to environmental factors, and on their implications. The paper concludes with a few recommendations aimed to deliver indoor conditions consistent with climatic preferences of itinerant environmentally conscious users of buildings in the coastal tropics. Such an approach is expected to minimize impacts the facility will make on the environment.

Weather is one of the main factors affecting labour productivity. Existing weather-productivity models focussed on hot and cold climates paying less attention to the tropics. Many tropical countries are expected to be the most areas affected by accelerated climate change and global warming, which may have a severe impact on labour health and productivity. The purpose of this paper is to assess whether the existing models can be used to predict labour productivity based on weather conditions in the tropics.

Five models are identified from the literature for evaluation. Using real labour productivity data of a high-rise building project in Malaysia, the actual productivity rate was compared with predicted productivity rates generated using the five models. The predicted productivity rates were generated using weather variables collected from an adjusting weather station to the project.

Compared with other models evaluated in this paper, the United States Army Corps of Engineers (USACE) was found to be the best model to predict productivity based on the case study data. However, the result shows only a 57% accuracy level of the USACE model indicating the need to develop a new model for the tropics for more accurate prediction.

The result of this study is perhaps the first to apply meteorological variables to predict productivity rates and validate them using actual productivity data in the tropics. This study is the first step to developing a more accurate productivity model, which will be useful for project planning and more accurate productivity rate estimation.

This research aims to investigate the influence of building design on the thermal comfort of occupants of naturally ventilated hospital (NVH) wards to identify the aspects with the most significant influence on the thermal comfort of hospital buildings during the hot-dry season in the hot-humid tropics of Southeast Nigeria.

Field measurements, physical observations and a questionnaire survey of 60 occupants of the wards of the Joint Presbyterian Hospital, Uburu in Ebonyi State, Nigeria were undertaken. The data were analysed using Humphreys' neutral temperature formula, descriptive statistics and multiple regression analysis.

The results revealed that the neutral temperature for the wards ranges from 26.2 °C to 29.9 °C, the thermal condition in the wards was not comfortable because it failed to meet the ASHRAE Standard 55 as only 65% of the occupants said the thermal condition was acceptable. The number and sizes of windows, building orientation, the presence of high-level windows and higher headroom significantly influenced the occupants' thermal comfort vote.

This research is valuable in estimating comfort temperature and identifying aspects that require attention in enhancing the capacity of NVH wards to effectively meet the thermal comfort needs of occupants in the hot-humid tropics of Southeast Nigeria and other regions that share similar climatic conditions.

To the best of the authors’ knowledge, this is the first study of this nature that provides valuable feedback for building design professionals on the performance of existing hospital buildings in meeting users' thermal comfort needs in the hot-dry season of the hot-humid tropics in Southeast Nigeria.

Nature plays an important role in tourism experiences with more people seeking leisure activities in outdoor settings. Tourism management can facilitate a reduction of impacts and enhancement of experiences but requires sensitivity to individual markets to be effective. This chapter investigate stakeholders’ perspectives for managing Chinese tourism to Wet Tropics. Specifically, it aims to determine overall thoughts as well as individual attitudes toward different futures. Guided by the concept of saturation of ideas in qualitative data, 18 in-depth interviews were conducted with stakeholders in north Queensland. Findings indicate that they are optimistic toward all futures but have different plans for and concerns about individual tourism markets.

The purpose of this paper is to examine the impact of corruption on the size of the shadow economy in countries that differ with respect to income level or geographical location. The underlying idea is that the primary manifestation of corruption might be associated with country characteristics and that different types of corruption might have different consequences.

IV regressions and bootstrapping are applied to a cross‐section of countries to show that geographical location of a country impacts on the relationship between corruption and the shadow economy. An interaction term of the level of corruption and geography is used to capture the differences in the types and consequences of corruption between countries.

Corruption does not seem to affect the size of the shadow economy outside the tropics. Instead, the higher the tropical area fraction of a country, the more a certain level of corruption enlarges the unofficial economy. Moreover, corruption and the shadow economy seem to be substitutes in the tropics.

Different types of corruption may have different consequences.

Unlike most of the previous literature, the paper accounts for the fact that some corrupt practices tend to be commonplace in some parts of the world, while other countries may be plagued by other types of corruption. Therefore, the consequences of corruption might also differ.

The study is carried out to analytically reconnoiter geotechnical index properties of subgrade soils as key variables that shape the cost profile of road infrastructure projects in a tropical geographic setting with starkly heterogenous ground conditions.

Using the Niger Delta region, as a point of reference, data on geotechnical index properties of subgrade soils at spatially dispersed locations for 61 completed highway projects are collated. Exploratory statistical tests were carried out to infer significant associations with final project costs before regression analysis. Regression analysis is principally deployed as an explanatory analytical tool, relevant to quantify the sensitivity of highway project costs to the individual and collective impact of geotechnical variables.

Several parameters of expansivity and compressibility exhibited significantly strong associations with the final costs recorded on the highway projects. The statistical analysis further established a cause-effect relationship, whereby small changes in the geotechnical properties of sub-grade soils at project locations, would result in disproportionately large changes in the cost of road construction.

The study findings provide insight into the sensitivity of road construction costs to geotechnical variables, which can serve as a useful input in financial risk analysis for development appraisal and the generation of location adjustment factors.

The study statistically demonstrates location-induced construction cost profiles, triggered in response to the spatial geotechnical variability and occurrence of problem subgrade soils in the humid tropics, which may be different from those traditionally established in studies of cold and temperate climate soils.

Most of the growth in casino expansion for the foreseeable future will take place in Asia. Western casino operators appreciate the immense opportunities afforded by the Asian markets, but judging by their performance abroad some have not adapted in ways necessary to survive and prosper. The purpose of this paper is to expose key differences between Asian and Western gaming jurisdictions. In light of these differences, it is a serious mistake for Western casino executives to follow an ethnocentric approach when planning marketing activities and customer service initiatives for Asian customers. To rectify this situation, a framework is advanced that will assist Western operators to adapt to Asian markets.

Differences between Asian and Western gamblers in both their game preferences and behaviours are based upon cited data sources and upon the authors' observations during flied trips to various casino jurisdictions. When appropriate, insights gleaned from a series of informal interviews conducted with senior executives in Macau as well as gaming‐related consulting conducted by the authors in both Asia and North America are shared, albeit for legal reasons the sources are confidential. The TROPICS framework presented herein was developed by the lead author and presented to senior gaming executives at the University of Nevada, Reno 2008 executive development program. The seven elements of this framework – now refined – are targeting, retention, organization, people, incentives, culture, and systems.

This paper concludes that in order to better serve Asian markets, there is an urgent need to empirically assess patron behavior and the attendant casino marketing adaptations that will be required to succeed in these markets.

A series of questions and issues related to each of the seven elements in the TROPICS framework are raised. The proposed framework is equally applicable to firms operating in Western countries as well as those in Asia; however, when put into practice, the outcome will be different marketing strategies adapted to each casino's market structure and macro‐environment. Regardless of context, this systematic approach to strategy formulation will ensure consistency and alignment across various elements of strategy.

The paper identifies the differences between Asian and Western gamblers to assist Western operators to adapt to Asian markets.

Numerous researchers proved Vertical Greenery System VGS beneficial to buildings and surroundings. However, it is still not widely applied in the tropics like Malaysia. This paper aims to determine the perceptions of VGS among the end users before it can be improved. A survey was conducted among 40 respondents, the end users of VGS in selected buildings within Klang Valley area. The collected data was analysed using statistical tests. From the findings, the primary benefits of VGS perceived by end users are enhancing visual quality, bringing nature harmony, reducing stress and reducing the urban heat island effects. The perceptions contradict with the results of ANOVA test between reducing the urban heat island effects and other VGS benefits that proves the need and effort to work on VGS in Malaysia.

Three Coupled Model Intercomparison Project Phase 5 models involved in the G4 experiment of the Geoengineering Model Inter-comparison Project (GeoMIP) project were used to investigate the impact of stratospheric aerosol injection (SAI) on the mean surface air temperature and precipitation extremes in Africa.

This impact was examined under G4 and Representative Concentration Pathway (RCP) 4.5 scenarios on the total precipitation, the number of rainy days (RR1) and of days with heavy rainfall (R20 mm), the rainfall intensity (SDII), the maximum length of consecutive wet (CWD) and dry (CDD) days and on the maximum rainfall in five consecutive days (Rx5day) across four regions: Western Africa (WAF), Eastern Africa (EAF), Northern Africa and Southern Africa (SAF).

During the 50 years (2020–2069) of SAI, mean continental warming is −0.40°C lower in G4 than under RCP4.5. During the post-injection period (2070–2090), the temperature continues to increase, but at a lower rate (−0.19°C) than in RCP4.5. During SAI, annual rainfall in G4 is significantly greater than in RCP4.5 over the high latitudes (especially over SAF) and lower over the tropics. The termination of SAI leads to a significant increase of rainfall over Sahel and EAF and a decrease over SAF and Guinea Coast (WAF).

Compared to RCP4.5, SAI will contribute to reducing significantly regional warming but with a significant decrease of rainfall in the tropics where rainfed agriculture account for a large part of the economies. After the SAI period, the risk of drought over the extratropical regions (especially in SAF) will be mitigated, while the risk of floods will be exacerbated in the Central Sahel.

To meet the Paris Agreement, African countries will implement mitigation measures to contribute to keep the surface air temperature below 2°C. Geoengineering with SAI is suggested as an option to meet this challenge, but its implication on the African climate system needs a deep investigation in the aim to understand the impacts on temperature and precipitation extremes. To the best of the authors’ knowledge, this study is the first to investigate the potential impact of SAI using the G4 experiment of GeoMIP on temperature and precipitation extremes of the African continent.