Papua New Research Articles

Improving Tax Compliance without Increasing Revenue: Evidence from Population-Wide Randomized Controlled Trials in Papua New Guinea

Improving Tax Compliance without Increasing Revenue: Evidence from Population-Wide Randomized Controlled Trials in Papua New Guinea

A Health Survey Revealing Prevalence of Vector-Borne Diseases and Tuberculosis in Papua New Guinea Defence Force Personnel and Families.

The Papua New Guinean Defence Force (PNGDF) and the Australian Defence Force (ADF) work and train closely. Infectious diseases pose a health threat to both forces, but recent knowledge about the risk at military bases in Papua New Guinea is limited. To improve understanding, a collaborative cross-sectional survey was conducted (March-April 2019) at Lombrum Naval base (Manus province) and Moem Army barracks (Wewak, East Sepik province) plus its Vanimo outpost (Sandaun province). Clinical data, venous blood, and sputum were collected from PNGDF personnel (DF) from the three sites, with point-of-care testing conducted for malaria (microscopy and rapid diagnostic test [RDT]), lymphatic filariasis (RDT), glucose-6-phosphate-dehydrogenase (G6PD) deficiency (RDT), tuberculosis (GeneXpert), and hemoglobin level. Finger prick blood collected from family members residing at the Wewak base was tested for malaria and hemoglobin level. Overall, 235 DF and 793 family members completed the survey. Microscopy revealed malaria prevalence as 0.4% Plasmodium falciparum and 3.1% Plasmodium vivax among DF and 3.5% P. falciparum, 14.3% P. vivax, and 0.3% mixed P. falciparum/P. vivax among family members. Among DF, 3.9% were G6PD deficient and none tested positive for tuberculosis or for lymphatic filariasis antigen. Anemia was present in 6.5% of DF and 47.3% of family members, predominantly females. Results suggest ongoing exposure to malaria, particularly P. vivax, at study sites, whereas infections of lymphatic filariasis and tuberculosis were not detected. Survey results will inform the PNGDF and the ADF regarding vector-borne disease risk for future sustainable health and disease control interventions.

Household food insecurity during the COVID-19 pandemic and associated socioeconomic demographic factors in Papua New Guinea: evidence from the Comprehensive Health and Epidemiological Surveillance System

IntroductionThe COVID-19 pandemic had an unprecedented impact on global food security, but little is known about the impact on food security at the household level. We examined the prevalence and...

Tuberculosis infection prevention and control in rural Papua New Guinea: an evaluation using the infection prevention and control assessment framework

Tuberculosis infection prevention and control in rural Papua New Guinea: an evaluation using the infection prevention and control assessment framework

Kes (Passageway): Cross‐Cultural Considerations of Island Field Containment in the Torres Strait

ABSTRACTSynthetic biology (synbio) scientists have identified islands as potential environments in which to trial the release of approved gene drives in the future for conservation and biosecurity purposes. However, islands, and their interconnected waterscapes, can connect as much as they contain. The Torres Strait Islands stretch between mainland Australia, of which they are a part, and Papua New Guinea. The Straits' water facilitates transport and fosters customary connection and trans/national notions of kin. In this watery world, how might Torres Strait Islanders' understandings complicate and/or contribute to (synbio) scientific concepts of islands as contained, ‘watertight’ field sites? And how is a changing climate and rising sea levels impacting identities in the Torres Strait and relationships in the region? As intra‐ and inter‐national island anthropology, this article considers how synbio approaches to water may engage with the hydro‐history and fluid future of Torres Strait Islander identities and cross‐cultural socio‐environmental responsibilities.

Ecosystem services in coffee agroforestry: their potential to improve labour efficiency amongst smallholder coffee producers

This paper investigates the potential labour efficiencies and socio-cultural benefits of agroforestry for coffee smallholders practising low input production strategies. Employing both qualitative and quantitative methods, our case study of coffee smallholders in the highlands of Papua New Guinea, shows that despite managing very small holdings of coffee trees (< 500 trees), productivity is challenged by labour shortages and by very low levels of farm inputs. Constraints on labour supply include barriers to mobilising women’s labour; competition for labour from alternative livelihoods; the absence of a market in hired labour; and the time, labour and income demands of the indigenous socio-economy. The indigenous social economy draws heavily on smallholders’ time, labour and coffee income, to the extent that there is little labour for coffee garden maintenance and little coffee income invested in other farm inputs. To address these input shortfalls we explore the potential of ecosystem services from shade-grown coffee to generate labour efficiencies to partly fill some of the unmet maintenance requirements of coffee gardens and to partly fill the role of other farm inputs. Coffee extension must become more holistic and consider smallholder families’ diverse livelihoods and recognise the enduring nature of the low input production strategy, its socio-cultural value, its role in determining life quality, and thus its resistance to change. Extension must align with, rather than challenge, the low input production strategy to promote the potential labour efficiencies and benefits of agroforestry to create more resilient, sustainable and culturally-enriching coffee-based farming systems.

Ensuring Security in Economic Freedom: A Cross Case Between Indonesia's Border Neighbors

An open economy allows for partnerships between countries. The urgency of this paper is to dedicate the government's concern to revitalizing weapons in finance, export–import, and empowering the military sector to maintain economic freedom in 8 countries. The objectivity of the study focuses on Indonesia's cross–border countries. Annual published data sourced from the Global Economy is compiled for 6 periods. Then, the comparative linear regression technique serves to articulate the analysis funds. Since 2016–2021, there are indications that there is a strong determination of arms imports, arms exports, GDP of the military, armed forces personnel, and military spending on economic freedom. Interestingly, it was found that variables that influence economic freedom include arms imports in Australia, Papua New Guinea and the Philippines, then arms exports in Indonesia, Australia and Papua New Guinea. In line with the GDP of the military which also affects economic freedom for Indonesia, Papua New Guinea, Singapore and Thailand. Furthermore, only armed forces personnel have a systematic effect on Australia and Vietnam and military spending on Papua New Guinea and Malaysia. Therefore, the research output guides future studies to consider protective national military policy interventions as an alternative to driving national economic independence.

IMPACT OF EXTERNAL DEBT ON FINANCIAL DEVELOPMENT: AN EMPIRICAL ANALYSIS OF SELECTED EAST ASIAN AND PACIFIC COUNTRIES

This article explores the impact of external debt on financial development in a group of fifteen selected East Asian and Pacific countries from 1992 to 2021. These countries include Cambodia, China, Fiji, Indonesia, Lao PDR, Mongolia, Myanmar, Papua New Guinea, the Philippines, Samoa, the Solomon Islands, Thailand, Tonga, Vanuatu, and Vietnam. Data were extracted from the World Bank and International Monetary Fund databases. This study employs random effects and fixed effects models, Driscoll-Kraay standard errors, and the generalized method of moments to test two hypotheses. The results indicate that external debt has a positive impact on the financial development of these East Asian and Pacific countries, where economic growth plays a vital role in promoting financial development. Additionally, a nonlinear impact of external debt on the financial development of these East Asian and Pacific countries is observed. Based on these findings, it is recommended that appropriate financial development policies be implemented in the identified countries.

Provenance of the Papuan Peninsula (Papua New Guinea): Zircon Inheritance from Miocene–Pliocene Volcanics and Volcaniclastics

Plate tectonic reconstructions of Papua New Guinea prior to the late Cenozoic are characterized by a lack of provenance data to constrain the relative origin of the allochthonous terranes. At present, plate tectonic reconstructions of this region infer that the accreted New Guinea terranes at the northern Australian continental margin are likely autochthonous or para-autochthonous in nature. This study presents the results of an investigation into zircons derived from Miocene–Pliocene volcanics and volcaniclastics of the Papuan Peninsula. Results from U-Pb zircon geochronology inform the recent geological history of the Papuan Peninsula, with magmatism active in the late Miocene and early Pliocene, between approximately 9 Ma and 4.5 Ma. More significantly, however, is the recognition of extensive inherited zircon grains within the volcanic and volcaniclastic sequences. These inherited zircon grains are most likely sourced from the Owen Stanley Metamorphics, which form the basement rocks of the Papuan Peninsula. Provenance of the inherited zircon grains imply that the Cretaceous volcaniclastic protolith of the Owen Stanley Metamorphics must have had input from continental detritus, but this cannot be derived from North Queensland, Australia as inferred by current reconstructions. Instead, zircon U-Pb age spectra correlate with probable source regions further to the south, adjacent to the Shoalwater Formation of the Central Queensland margin, and New Caledonia. These findings suggest that late Mesozoic and Cenozoic regional reconstructions of eastern Australia and the Southwest Pacific require major revision and that additional work is undertaken to inform the provenance of such allochthonous terranes.

Factors influencing maternal healthcare utilization in Papua New Guinea: Andersen’s behaviour model

BackgroundPapua New Guinea (PNG) has recorded the highest maternal mortality ratio in the Western Pacific Region and faces major challenges in achieving SDG 3. Antenatal care (ANC), skilled birth attendant (SBA) and postnatal care (PNC) services are critical components of maternal healthcare services (MHS) for reducing maternal mortality and promoting maternal health in PNG. The study sought to assess the prevalence and determinants of ANC, SBA and PNC services amongst women in PNG.MethodsThe study was conducted using the 2016–2018 Papua New Guinea Demographic and Health Survey. A total of 5248 reproductive-age women were considered as the analytical sample. The outcome variables were utilisation of ANC, SBA and PNC services. Chi-square test, multivariable logistic regression and dominance analysis were conducted. Statistical significance was set at p < 0.05.ResultsThe prevalence rates of ANC, SBA and PNC services were 52.3%, 58.7% and 26.6%, respectively. Women’s employment, education, media exposure, distance to health facility, household wealth, region, residence and parity were determinants of MHS utilisation. ANC, SBA and PNC services utilisation were all primarily influenced by enabling factors, followed by predisposing and need factors.ConclusionsThis study demonstrated that enabling factors such as media exposure, distance to health facility, household wealth, region and residence have the greatest impact on MHS utilisation, followed by predisposing (working, education) and need factors (parity). Therefore, enabling factors should be prioritised when developing maternal health programmes and policies. For example, transport and health infrastructure should be strengthened and women’s education and vocational training should be increased, especially in Highlands region, Momase region and rural areas, to increase the utilisation of MHS.

Analysis of the burden and trends of communicable diseases in Pacific Island countries from 1990 to 2019

BackgroundCommunicable diseases contribute substantially to morbidity and death rates worldwide, particularly in low-and middle-income countries. Pacific Island countries face unique challenges in addressing these diseases due to their remote locations and limited resources. Understanding the burden and trends of these diseases in this region is crucial for developing effective public health interventions.ObjectiveThis study aimed to analyze the burden and trends of communicable diseases in Pacific Island countries from 1990 to 2019.MethodsWe utilized data from the 2019 Global Burden of Disease (GBD) study to analyze indicators including incidence, death, and disability-adjusted life years (DALYs). Excel 2016, R 4.2.1, and GraphPad Prism 9 were used to analyze and visualize the data. Joinpoint regression models were used for trend analysis, and the average annual percent change (AAPC) was calculated.ResultsFrom 1990 to 2019, the standardized incidence rate of communicable diseases in Pacific Island countries showed an upward trend (AAPC = 0.198%, 95% CI = 0.0174 ~ 0.221), while the standardized death rate (AAPC = -1.098%, 95% CI = –1.34 ~ 0.86) and standardized DALY rate (AAPC = -1.008%, 95% CI = -1.187 ~ -0.828) showed downward trends. In 2019, the standardized incidence, death, and DALY rates of communicable diseases were higher among males than among females, but the standardized death and DALY rates among males decreased faster than those among females from 1990 to 2019. There were significant differences in the disease burden among different Pacific Island countries. The Solomon Islands had the highest standardized death rate (363.73/100,000), and Guam had the lowest (50.42/100,000). Papua New Guinea had the highest standardized DALY rate (16,041.14/100,000), and the Cook Islands had the lowest (2,740.13/100,000). In 2019, the main attributable risk factors for communicable disease deaths in Pacific Island countries were child and maternal malnutrition (28.32%), followed by unsafe water, sanitation, and handwashing (27.14%), air pollution (16.11%), and unsafe sex (14.96%). There were considerable geographical variations in risk factors.ConclusionThe burden of communicable diseases in Pacific Island countries remains high, despite improvements in mortality and disability-adjusted life-year rates over the past few decades. This study provides valuable insights into the burden and trends of communicable diseases in Pacific Island countries from 1990 to 2019. The findings reveal several important insights and highlight the need for targeted public health interventions in the region.

Climate variability and water-related infectious diseases in Pacific Island Countries and Territories, a systematic review

Background Climate induced changes in water-related infectious disease (WRID) transmission are a growing public health concern. The effects of climate on disease vary regionally, as do key socioeconomic modifiers. Regional syntheses are necessary to develop public health tools like risk maps and early warning systems at this scale. There is a high burden of WRID in the Pacific Island Countries and Territories (PICTs). There has been significant work on this topic in the PICTs, however, to date, there has been no regional systematic review of climate variability and WRID. Methods We searched the PubMed, Web of Science and Scopus scientific databases in September 2022 using a combination of disease, climate, and country terms. We included studies that evaluated the association between climate or weather variability and a WRID in the PICTs using a quantitative epidemiological design. We assessed risk of bias using validated tools. We analysed spatiotemporal publication patterns, synthesised the outcomes of studies in relation to the international literature and identified missing evidence. Results &amp; discussion We identified 45 studies of climate and malaria, dengue, diarrhoea, leptospirosis, and typhoid, which represent major WRIDs of concern in the Pacific Islands. More than half of the studies were set in Papua New Guinea or Fiji. The number of studies published each year increased exponentially over time from the 1980s to present. We found few comparable outcomes per disease and setting across epidemiological studies which limited the potential for meta-analysis. However, we identified consistent increased incidence of diarrhoea, dengue, leptospirosis, and typhoid following extreme weather events, highlighting the necessity for adequate water, sanitation, and hygiene access across the PICTs. Additionally, there were consistent positive associations between temperature and dengue incidence in New Caledonia, highly seasonal malaria in PNG, increased diarrhoea incidence with high and low rainfall, and positive associations between leptospirosis and rainfall. These findings are biologically plausible and consistent with the international literature. Future work on this topic in the PICTs can take advantage of increasingly available health and climate data to consolidate the field across a greater diversity of settings and apply these findings to strengthening climate resilient health systems. Registration This review is registered with the international prospective register of systematic reviews (PROSPERO CRD42022353853), in accordance with PRISMA guidelines.

Population diversity analysis of an underutilized legume, winged bean (Psophocarpus tetragonolobus (L.) DC.) using ISSR markers

Seventy genotypes of winged bean representing five populations, include the, genotypes from India (IN), Thailand (TH), Nigeria (NI), Ghana (GH) and Papua New, Guinea (PNG) were taken for the study. Widely accepted population analysis tools;, POPGene Ver.1.32, GenAlEx Ver. 6.5, Splits Tree Ver.4.15.1, STRUCTURE Ver., 2.3.4 and Structure Harvester Ver.6.0 and MVSP Ver.3.22 were used for data, interpretation. Results revealed that the highest diversity was observed in Thailand, population. Genetic diversity between populations was not related to geography. All the, Indian samples except PT-1 grouped together, one Thailand sample (PT-33) was, totally different from other Thailand samples and PT-69 of PNG highly distinct from, other samples. Cluster analysis revealed that four Thailand samples (PT-31, PT-32, PT-48, and PT-49) two Indian samples (PT-28 and PT-29) and two Thailand samples, (PT-42 and PT-46) are genetically closer with less Euclidean distance of 0, whereas, PT-39 showed a maximum distance of 0.87. From this study, PT-33 (EC 178272), PT-, 69 (EC 38821 P2) and PT-39 (EC 178291) could be labelled as genetic variants.

Revisiting raters’ accent familiarity in speaking tests: Evidence that presentation mode interacts with accent familiarity to variably affect comprehensibility ratings

This controlled experimental study investigated the interaction of variables associated with rating the pronunciation component of high-stakes English-language-speaking tests such as IELTS and TOEFL iBT. One hundred experienced raters who were all either familiar or unfamiliar with Brazilian-accented English or Papua New Guinean Tok Pisin-accented English, respectively, were presented with speech samples in audio-only or audio-visual mode. Two-way ordinal regression with post hoc pairwise comparisons found that the presentation mode interacted significantly with accent familiarity to increase comprehensibility ratings (χ² = 88.005, df = 3, p &lt; .0001), with presentation mode having a stronger effect in the interaction than accent familiarity (χ² = 59.328, df = 1, p &lt; .0001). Based on odds ratios, raters were significantly more likely to score comprehensibility higher when the presentation mode was audio-visual (compared to audio-only) for both the unfamiliar (91% more likely) and familiar speakers (92.3% more likely). The results suggest that semi-direct speaking tests using audio-only or audio-visual modes of presentation should be evaluated through research to ascertain how accent familiarity and presentation mode interact to variably affect comprehensibility ratings. Such research may be beneficial to investigate the virtual modes of speaking test delivery that have emerged post-COVID-19.

A taxonomic revision of the Old World genus Dichoteleas Kieffer (Hymenoptera, Scelionidae).

The genus Dichoteleas Kieffer (Scelionidae: Scelioninae) is known only from the Old World: Kenya, Tanzania, Malawi, South Africa, Madagascar, southern India, the island of New Guinea, and eastern Australia. After revision, 10 species are recognized. Four species were previously recognized and are redescribed: D.ambositrae Risbec (Madagascar), D.indicus Saraswat (India: Kerala), D.rugosus Kieffer (Australia: Queensland), and D.subcoeruleus Dodd (Australia: Queensland). Six species are described as new: D.fulgidussp. nov. (Indonesia: Papua Barat), D.fuscussp. nov. (Papua New Guinea, Australia: Queensland), D.hamatussp. nov. (Kenya, Tanzania, Malawi, South Africa)., D.rubyaesp. nov. (Madagascar), D.striatussp. nov. (Madagascar), and D.umbrasp. nov. (Tanzania). Dichoteleaspappi Szabó is treated as a junior synonym of D.rugosus. An identification key to species of the genus is provided.

Factors influencing the community participation approaches used in Aedes mosquito management in the Torres Strait, Australia

BackgroundAedes-borne disease risk is increasing in tropical and sub-tropical regions across the globe. While Aedes-borne disease continues to disproportionally affect low- and middle-income countries, parts of high-income countries, such as the Torres Strait region in Australia are also at risk. The Torres Strait is a group of islands located between Cape York Peninsula in far north Queensland, Australia and Papua New Guinea. The Torres Strait has both Aedes albopictus and Aedes aegypti and is close to Papua New Guinea where dengue fever is endemic. Managing Aedes-borne disease risk requires a range of strategies, including community participation. Existing research shows that high-income countries tend to favour government-led (top-down) informing approaches when engaging communities in Aedes mosquito management. Little is known about the factors that influence the choice of community participation approaches in Aedes mosquito management particularly in a high-income country setting, such as Australia. This research contributes to filling this knowledge gap by exploring the community participation approaches used in Aedes mosquito management and the factors influencing these choices in the Torres Strait.Methods16 semi-structured interviews were conducted with local government and state government agencies working in Aedes mosquito management in the Torres Strait. Six key mosquito management plans and policies were also reviewed. Thematic analysis was used to identify, analyse and attribute meaning from the data collected.ResultsA range of community participation approaches were used within the two main Aedes mosquito management programs (Aedes albopictus Elimination Program and the Torres Strait Island Regional Council, Environmental Health Program) in the Torres Strait. These approaches included door-to-door inspections, awareness raising strategies, and community clean-up events. Approaches were chosen for reasons related to regulations, attitude and beliefs, and resourcing.ConclusionsThis study revealed the use of both top-down and bottom-up approaches to engaging the community in Aedes mosquito management in the Torres Strait. These findings contribute to a better understanding of why bottom-up approaches are used, which is valuable for shaping future policy decisions. This study also provides suggestions on ways to enhance community participation in the Torres Strait, which could also be considered in other similar tropical regions.

Agroforestry Species Selection for Forest Rehabilitation in the Asia-Pacific Region: A Meta-Analysis on High-Level Taxonomy

Agroforestry is important for forest management and rehabilitation in the southeast Asia-Pacific Region (APR), where economic issues, intensive land use, deforestation, and forest degradation are common. Species selection is a key process in establishing agroforestry systems. In this study, we reviewed the agroforestry literature across eight economies within the southeast APR, documented the species used, and compared the existing systems to better understand the challenges and opportunities for the region’s agroforestry expansion. We conducted rule and Maptree analyses using 108 species, belonging to 95 genera and 49 families of plants, to unravel the various agroforestry practices in this region. We identified the most common plant families used in agroforestry combinations within each economy. We then divided the economies into three groups based on the most commonly used genera: (1) Thailand, Vietnam, Papua New Guinea and Fiji (Hevea, Oryza, Eucalyptus, Acacia, and Zea); (2) Nepal and Yunnan China (Zea, Leucaena, Morus, and Hevea); and (3) Indonesia and the Philippines (Oryza, Hevea, Zea, and Brassica). Although this study focused on high-level taxonomic classification (family and genus), we believe that this work will fill the current knowledge gaps, offering guidance to economies in the southeast APR regarding species selection and the adoption of sustainable agroforestry practices.

Agricultural value chains and food security in the Pacific: Evidence from Papua New Guinea and Solomon Islands

Small island developing states in the Pacific face multiple development challenges driven by rapid population growth and high transportation costs due to remoteness and isolation. Combined with the adverse consequences of extreme weather events and climate change, these challenges exacerbate poverty and food insecurity. Agricultural value chain development presents a pathway to poverty reduction and food security. In this paper, we assess the impacts of two value chain development projects in Papua New Guinea and Solomon Islands on dietary diversity and food security of small-scale producers. Project impacts on dietary diversity are positive and significant in both countries, but improved food security is only observed in Solomon Islands. These impacts are mainly driven by crop yields, value of crop production and sales, crop diversification and share of crop sales. We find that treatment households are more likely to consume less nutritious foods such as sweets and oils. Our findings expand the literature in a data-scarce region and caution that value chain interventions without nutrition-focused components to induce behavioral change may have unintended impacts on healthy diets.

Analysis of insecticides in long-lasting insecticidal nets using X-ray fluorescence spectroscopy and correlation with bioefficacy

BackgroundLong-lasting insecticidal nets (LLINs) are a key vector control tool used for the prevention of malaria. Active ingredient (AI) measurements in LLINs are essential for evaluating their quality and efficacy. The main aim of the present study was to determine the utility of X-ray fluorescence (XRF) spectroscopy as a suitable field-deployable tool for total AI quantification in LLINs.MethodsNew and unused LLIN samples containing deltamethrin (PermaNet® 2.0, n = 35) and alpha-cypermethrin (SafeNet®, n = 43) were obtained from batches delivered to Papua New Guinea (PNG) for mass distribution. Insecticides were extracted from the LLINs using a simple extraction technique and quantified using liquid chromatography mass spectrometry (LC-MS). The LC-MS results were correlated with XRF spectroscopy measurements on the same nets. Operators were blinded regarding the type of net. Bioefficacy of the LLIN samples was tested using WHO cone bioassays and test results were correlated with total AI content.ResultsThe results indicate correlation between quantitative XRF and LC-MS. Interestingly, the total AI content was negatively correlated with bioefficacy in PermaNet® 2.0 (especially in recently manufactured nets). In contrast, AI content was positively correlated with bioefficacy in SafeNet®. These results indicate that the chemical content analysis in predelivery inspections does not always predict bioefficacy.ConclusionXRF is a promising field-deployable tool for quantification of both deltamethrin- and alpha-cypermethrin-coated LLINs. Because total AI content is not always a predictor of the efficacy of LLINs to kill mosquitoes, bioefficacy measurements should be included in predelivery inspections.

‘Time Is Against Us’: Anti-Communism, Decolonisation, and Papua New Guinean Independence

This article traces the importance of anti-communist organisations to the development of early Papua New Guinean political elites. Focusing on Oala Oala-Rarua (1934–80), it shows how his participation in activities organised by the spiritual group Moral Re-Armament and the Australian Association for Cultural Freedom provided avenues and platforms through which to articulate an increasingly nationalist politics. Both groups feared that radical nationalism in the Australian-administered Territory would serve communist purposes, and as such sought to cultivate a liberal political leadership. Following work on non-communist forms of anti-colonial worldmaking, this article shows how Oala-Rarua and his contemporaries saw much of value in the ideas on display and the connections they facilitated. While initially accepting of Australian tutelage, this article shows that, over time, emerging nationalist elites found the realities of slow progress and ongoing racial discrimination in the Territory to be at odds with even the most conservative post-colonial schema.