Re-evaluating Pleistocene–Holocene occupation of cave sites in north-west Thailand: new radiocarbon and luminescence dating

Established chronologies indicate a long-term ‘Hoabinhian’ hunter-gatherer occupation of Mainland Southeast Asia during the Terminal Pleistocene to Mid-Holocene (45 000–3000 years ago). Here, the authors re-examine the ‘Hoabinhian’ sequence from north-west Thailand using new radiocarbon and luminescence data from Spirit Cave, Steep Cliff Cave and Banyan Valley Cave. The results indicate that hunter-gatherers exploited this ecologically diverse region throughout the Terminal Pleistocene and the Pleistocene–Holocene transition, and into the period during which agricultural lifeways emerged in the Holocene. Hunter-gatherers did not abandon this highland region of Thailand during periods of environmental and socioeconomic change.

La historia de un expediente de litigio de tierra en Chiapas. Una propuesta metodológica

In Chiapas, and particularly in the Highland region, few colonial indigenous documents have been found that are similar to those produced by the neighboring Maya peoples of the Guatemala Highlands and the Yucatan Peninsula. The question of whether or not such sources exist is an legitimate one, considering the importance of these testimonies for linking Postclassic historical processes to the development of indigenous societies in the Colonial era. In this respect, the Chiapa Title is an exception. It is a record that gives us a glimpse of the dynamics and conflicts that unfolded between two large political centers: Chiapa and Zinacantan. Thus, the objective of this article is not to reexamine the content of the document, whose classification as a ''title'' is erroneous, but to analyze the nature and form of this fragment and contextualize it in the framework of the legal discourse of the era and the conflicts between the so-called ''pueblos indios''. To this end, we set forth the methodological guidelines used in our examination of the document, as well as reflections on its complex connection to the still fragmentary archeological corpus from the Postclassic period and its transition to the Colonial era.

Contraceptive discontinuation among women of reproductive age in Papua New Guinea

Background Papua New Guinea has one of the lowest contraceptive prevalence rates among women of reproductive age in the Western Pacific Region and this makes contraceptive discontinuation in this country a critical public health issue worth studying. This study sought to assess factors associated with contraceptive discontinuation among women of reproductive age in Papua New Guinea. MethodsThe data used for the analysis were obtained from Papua New Guinea Demographic and Health Survey which was conducted in 2016–2018. The outcome variable for this study was contraceptive discontinuation among women of reproductive age. Crude odds ratios and adjusted odds ratios with 95% confidence intervals were estimated using binary logistic regression.ResultsAbout 33.26% of the women discontinued injectables, 19.15% discontinued pills and 3.77% discontinued other contraception methods. Women aged 20-24 [aOR=2.12, CI= [=[1.04,4.31] through to those aged 30-34 [aOR=1.98, CI=1.03,3.79] had higher odds to discontinue contraceptive usage compared to those aged 45-49. Women with no information on choice of contraception [aOR=2.85, CI=2.31,3.51], those with two or more births in the last five years [aOR=2.35, CI=1.65,3.35] and those living in the Highland region [aOR=1.71, CI=1.28,2.29] were more likely to discontinue contraceptive usage compared with those with information on contraceptive choices, those with no births and those living in the Island region respectively. However, women in the rural areas [aOR=0.78, CI=0.61,0.99], those who are undecided in their desire for more children [aOR=0.61, CI=0.37,1.00], women using LARC [aOR=0.10, CI=0.06,0.15], injectables [aOR=0.43, CI=0.30,0.63] and other modern methods including condom [aOR=0.22, CI=0.15,0.34] were less likely to discontinue contraceptive usage. ConclusionA nationwide mass education on the benefits of contraception is recommended for the Papua New Guinea National Department Of Health to tackle the key findings of this study which were high contraceptive discontinuation prevalence with lack of information on choice, disproportionately high contraceptive discontinuation rate in the Highland Region and the desire to give birth to more than two children as some factors associated with contraceptive discontinuation in Papua New Guinea.

Prohexadione-calcium on downy mildew and botrytis bunch rot epidemiology, and yield and technological and phenolic parameters of the Merlot vine cultivar in the highland region of southern Brazil

ABSTRACT: Prohexadione-calcium (ProCa) is a gibberellin biosynthesis inhibitor and the objective of this study was to evaluate the effect of ProCa on the downy mildew (DM) and Botrytis bunch rot (BBR) epidemiology, and the yield and technological and phenolic parameters of grape Merlot cultivar. Experiments were carried out in a commercial vineyard in São Joaquim Municipality/SC, Southern Brazil, during the 2017-2018 and 2018-2019 growing seasons. ProCa was applied at four doses and three phenological stages: A) 0 g ha−1 (control); B) 1000 g ha−1 (inflorescence fully developed); C) 500 + 500 g ha−1 (inflorescence fully developeted and full flowering); D) 500 + 500 + 500 g ha−1 (inflorescence fully developed, full flowering, and berries pea-sized). DM and BBR incidence and severity were quantified weekly from the first symptom appearance until harvest, and their epidemiology was compared according to: a) the beginning of symptom appearance; b) the time to reach the maximum disease incidence and severity; c) the maximum value of disease incidence and severity; d) the area under the disease progress curve. In general, there were significant differences in the ProCa doses for all epidemiologic parameters of DM and BBR compared with the control plot; however, there was no significant difference among the ProCa doses. The principal epidemiological variables that differentiated the effect of ProCa on the DM and BBR control were the Smax and AUSDPC. Some yield and technological and phenolic parameters were negatively affected by different doses of ProCa, but it was still a good option for DM and BBR control in highland region of southern Brazil during the 2017-2018 and 2018-2019 growing seasons.

Livelihood Options and Livelihood Security Among Tribal in South Western Plateau and Highland Region in West Bengal

Livelihood resources are varying from one region to another due to natural and human factors. There are no such studies that consider a broad geographical region and tribal livelihood options and livelihood security. So the present study can fulfil such a literature gap. The present study makes an attempt to analyse livelihood options and livelihood security among the tribals. The study was carried out along the south western plateau and highland region in West Bengal. Secondary data and the primary data have been used. Purposive stratified random sampling technique was used to collect the primary data. Sustainable livelihood framework (SLF) has been used for the selection of factors and indicators. The core outcome of the research is that small landholding size and traditional technology are no longer to meet the rising demands of tribal population. Forest resources are also very rapidly declining due to the huge industrial demands and ever-increasing household needs. Now tribal people are travelling long distances to collect forest products than ever before. The better education opportunities to the younger generation could open up new occupational opportunities and economic diversification and that definitely leads to the good economic status of the tribal people.

Evaluation the Performance of Several Gridded Precipitation Products over the Highland Region of Yemen for Water Resources Management

Management of water resources under climate change is one of the most challenging tasks in many arid and semiarid regions. A major challenge in countries, such as Yemen, is the lack of sufficient and long-term climate data required to drive hydrological models for better management of water resources. In this study, we evaluated the accuracy of accessible satellite and reanalysis-based precipitation products against observed data from Al Mahwit governorate (highland region, Yemen) during 1998–2007. Here, we evaluated the accuracy of the Climate Hazards Group Infrared Precipitation with Station (CHIRPS) data, National Centers for Environmental Prediction (NCEP) Climate Forecast System Reanalysis (CFSR), Precipitation Estimation from Remotely Sensed Information Using Artificial Neural Networks-Climate Data Record (PERSIANN-CDR), Tropical Rainfall Measuring Mission (TRMM 3B42), Unified Gauge-Based Analysis of Global Daily Precipitation (CPC), and European Atmospheric Reanalysis (ERA-5). The evaluation was performed on daily, monthly, and annual time steps by directly comparing the data from each single station with the data from the nearest grid box for each product. At a daily timescale, CHIRPS captures the daily rainfall characteristics best, such as the number of wet days, with average deviation from wet durations around 11.53%. TRMM 3B42 is the second-best performing product for a daily estimate with an average deviation of around 34.7%. However, CFSR (85.3%) and PERSIANN-CDR (103%) and ERA-5 (−81.13%) show an overestimation and underestimation of wet days and do not reflect rainfall variability of the study area. Moreover, CHIRPS is the most accurate gridded product on a monthly basis with high correlation and lower bias. The average monthly correlation between the observed and CHIRPS, TRMM 3B42, PERSIANN-CDR, CPC, ERA-5, and CFSR is 0.78, 0.56, 0.53, 0.15, 0.20, and 0.51, respectively. The average monthly bias is −2.9, −5.25, 7.35, −25.29, −24.96, and 16.68 mm for CHIRPS, TRMM 3B42, PERSIANN-CDR, CPC, ERA-5, and CFSR, respectively. CHIRPS displays the spatial distribution of annual rainfall pattern well with percent bias (Pbias) of around −8.68% at the five validation points, whereas TRMM 3B42, PERSIANN-CDR, and CFSR show a deviation of greater than 15.30, 22.90, and 66.21%, respectively. CPC and ERA-5 show Pbias of about −88.6% from observed data. Overall, in absence of better data, CHIRPS data can be used for hydrological and climate change studies on the highland region of Yemen where precipitation is often episodical and measurement records are spatially and temporally limited.

Masters Highland Games and imaginations of home

Purpose This paper aims to explore the journeys of a group of North American Master athletes who travelled to Scotland to compete in the 2014 Masters World Championship Highland Games. Conceptualising, the Masters World Championship Highland Games as a unique form of sport heritage tourism, the paper explores how imaginations of the host venue are caught within individual and collective histories, while also being influenced by the socio-political context of contemporary Scotland. Design/methodology/approach After detailing the histories of the Highland games and Scottish emigration, the study draws upon a qualitative methodology to explore how such histories impact the imaginations of the Highland region. Findings This paper examines the journeys of athletes to the games, how they understood the games venue space and surrounding areas, and also how the Highland region itself was the site of contested meanings. The study concludes with a discussion of the narratives that frame imaginations of the Highlands and Scotland more broadly. Originality/value The paper adds to existing knowledge on sport heritage tourism and considers how conceptualisations of Scotland continue to be renegotiated in light of contemporary political developments.