The data set contains images of leaf venation networks obtained from tree species in Malaysian Borneo. The data set contains 726 leaves from 295 species comprising 50 families, sampled from eight forest plots in Sabah. Image extents are approximately 1 × 1 cm, or 50 megapixels. All images contain a region of interest in which all veins have been hand traced. The complete data set includes over 30 billion pixels, of which more than 600 million have been validated by hand tracing. These images are suitable for morphological characterization of these species, as well as for training of machine-learning algorithms that segment biological networks from images. Data are made available under the Open Data Commons Attribution License. You are free to copy, distribute, and use the database; to produce works from the database; and to modify, transform, and build upon the database. You must attribute any public use of the database, or works produced from the database, in the manner specified in the license. For any use or redistribution of the database, or works produced from it, you must make clear to others the license of the database and keep intact any notices on the original database.
Malaria is the most important parasitic disease with global concern. Plasmodium knowlesi recently has emerged from its natural simian host as a significant cause of human malaria, particularly in Malaysian Borneo. Therefore, it has been added as the fifth human Plasmodium specie which is widely distributed in Southeast Asia. Recent developments of new molecular tools enhanced our understanding about the key features of this malaria parasite. Here, we review some of the ways in which molecular approaches might be used for epidemiology of P. knowlesi and finally lead to an efficient control of malaria.
The taxonomy of the little-known cricket genus Changiola from the subfamily Pteroplistinae is reviewed here. This genus consisted of three species, two from Malay Peninsula and one from Indochina. Here, we describe a new species from Borneo, the first from the island: Changiola sarawakensis n. sp. We also provide a key to the species, although it is likely that more species will be added to this genus with more sampling in the region.
Many lowland rainforests in Southeast Asia are severely altered by selective logging and there is a need for rapid assessment methods to identify characteristic communities of old growth forests and to monitor restoration success in regenerating forests. We have studied the effect of logging on the diversity and composition of lichen communities on trunks of trees in lowland rainforests of northeast Borneo dominated by Dipterocarpaceae. Using data from field observations and vouchers collected from plots in disturbed and undisturbed forests, we compared a taxonomy-based and a taxon-free method. Vouchers were identified to genus or genus group and assigned to functional groups based on sets of functional traits. Both datasets allowed the detection of significant differences in lichen communities between disturbed and undisturbed forest plots. Bark type diversity and the proportion of large trees, particularly those belonging to the family Dipterocarpaceae, were the main drivers of lichen community structure. Our results confirm the usefulness of a functional groups approach for the rapid assessment of tropical lowland rainforests in Southeast Asia. A high proportion of Dipterocarpaceae trees is revealed as an essential element for the restoration of near natural lichen communities in lowland rainforests of Southeast Asia.
Baccaurea pubera is a blood red coloured fruit found exclusively in Borneo. This study was conducted to evaluate the effect of superheated steam treatment on its antioxidant properties and mineral content as well as to determine nutritional values of the fruit. The fruits were treated with superheated steam at 170 °C for 15 min prior to extraction and freeze drying. The results showed that, in comparison to the control, superheated steam treatment enhanced the total phenolic content by 147.8% (287.16 mg GAE/100 g vs. 115.87 mg GAE/100 g) and DPPH radical scavenging activity by 23.7% (66.94% vs. 54.13%). However, there were reductions, as compared to the control treatments, in total flavonoid content by 16.5% (8.29 mg QE/100 g vs. 9.93 mg QE/100 g), lycopene content by 28.6% (0.020 μg/100 g vs. 0.028 μg/100 g) and ferric reducing antioxidant power by 22.2% (844.41 mg TE/100 g vs. 1085.15 mg TE/100 g). The superheated steam treatment was also observed to reduce the mineral content of the fruit, from as little as 3.6% to as high as 52% depending upon the specific mineral.
Borneo has gone through dramatic changes in geology and topography from the early Eocene until the early Pliocene and experienced climatic cycling during the Pleistocene. However, how these changes have shaped the present-day patterns of high diversity and complex distribution are still poorly understood. In this study, we use integrative approaches by estimating phylogenetic relationships, divergence time, and current and past niche suitability for the Bornean endemic land snail genus Everettia to provide additional insight into the evolutionary history of this genus in northern Borneo in the light of the geological vicariance events and climatic fluctuations in the Pleistocene. Our results show that northern Borneo Everettia species belong to two deeply divergent lineages: one contains the species that inhabit high elevation at the central mountain range, while the other contains lowland species. Species diversification in these lineages has taken place before the Pliocene. Climate changes during the Pleistocene did not play a significant role in species diversification but could have shaped contemporary species distribution patterns. Our results also show that the species-rich highland habitats have acted as interglacial refugia for highland species. This study of a relatively sedentary invertebrate supports and enhances the growing understanding of the evolutionary history of Borneo. Species diversification in Everettia is caused by geological vicariance events between the early Miocene and the Pliocene, and the distribution patterns were subsequently determined by climatic fluctuations in the Pleistocene.
Cerebral aneurysm is an exceedingly rare aetiology of neonatal Subarachnoid Haemorrhage (SAH). Detailed history and pattern recognition of the SAH is crucial in suspecting aneurysm.
Darwinisme sosial merupakan sebuah teori yang diagungkan oleh kuasa Barat bagi mewujudkan jurang perbezaan manusia dalam pelbagai aspek dengan mengangkat status mereka sebagai bangsa ‘superior’, manakala bangsa kulit hitam dan berwarna pula dikategorikan sebagai ‘inferior’ atau “lesser breed’’ pada abad ke-19. Justeru kajian ini akan memberi tumpuan kepada analisis bagaimana kuasa barat cuba untuk mengimplementasikan teori ini kepada penduduk di Borneo Utara dengan menggunakan dan menerapkan sistem sosial serta budaya mereka sebagai acuan bagi membentuk masyarakat yang mempunyai ketamadunan moden seperti yang mereka percayai bahawa itu merupakan tanggungjawab mereka menerusi slogan “white man burden”. Bagi mencapai objektif ini, kaedah kajian secara kualitatif telah digunakan dengan merujuk kepada sumber primer dan sekunder sebagai sumber utama. Sumber-sumber tersebut merupakan bahan yang dapat diakses di Arkib Negeri dan perpustakaan, serta terdiri daripada buku dan artikel yang terdapat dalam jurnal. Selain itu, sumber daripada laman sesawang yang releven juga digunakan bagi mengukuhkan hujah dan perbincangannya. Dapatan utama kajian ini mendapati bahawa penjajahan kuasa barat khususnya British dalam menguasai Borneo Utara bukan hanya bermatlamatkan pengeksploitasian ekonomi sahaja, namun mereka juga bertujuan untuk mengubah kehidupan tradisional penduduk tempatan memandangkan mereka beranggapan bahawa itu adalah suatu tanggungjawab yang mereka pikul dalam mendidik bangsa yang lebih rendah dari mereka, banyak berkait rapat dengan status dan maruah mereka sebagai kuasa imperialis yang mempromosikan ketamadunan. Maka, demi mencapai matlamat tersebut, pelbagai transformasi dan perubahan yang telah dilakukan oleh British dalam pelbagai aspek bagi mengubah taraf hidup penduduk tempatan khususnya dalam aspek ekonomi, politik dan sosial. Oleh itu, penulis akan membincangkan secara lebih mendalam mengenai justifikasi teori tersebut, serta dengan lebih lanjut bagi membincangkan apakah aspek dan pendekatan yang digunakan oleh Barat dalam mentamadunkan penduduk di Borneo Utara seperti apa yang mereka percayai menurut Darwinisme Sosial.
Changes in medical research ethics in the past two decades have made the communication of risk to potential participants a legal imperative. Using ethnographic data from two different cultures, we examine the hazards associated with medical research in relation to the respective societal contexts that imbue them with meaning. The Iban, a Dayak people indigenous to Borneo, perceive the hazards of participating in research in terms of danger to the collective. In Australia they are construed in terms of risk to individuals. Risk in medical research is one manifestation of a broader notion of 'risk' that is constitutive of the research enterprise itself and, we argue, fundamental to post-industrial society.
Breeding territoriality plays a role in determining the reproduction outcome of many passerines species. The spot-mapping was used to estimate the breeding territory size of a territorial male of Oriental Magpie robin (Cospychus saularis) at Dahlia College, Universiti Malaysia Sarawak which is located within Kota Samarahan. It was conducted by mapping the song perching locations established by a marked male. The breeding territory size of the male was estimated to be 0.78 hectares. The data analysis was done using Minimum Convex Polygon (MCP) which was constructed by using Google Earth Pro software. Study on breeding territory size of this bird species is crucial to understand more regarding the breeding behaviour of this species. Data on the behavior of this species could be used for future studies of this bird in Borneo.
Tarsius bancanus borneanus (kera hantu) pertama kali dicam oleh Elliot pada
tahun 1990 merupakan spesies endemik yang boleh ditemui di kepulauan Borneo yang
terdiri dari Sabah dan Sarawak (Malaysia), Brunei Darussalam dan Kalimantan, Indonesia.
Sub-spesies ini telah disenaraikan sebagai haiwan yang terlindung sepenuhnya di bawah
Ordinan Perlindungan Hidupan Liar Sarawak (1998) dan disenaraikan sebagai spesies
yang terdedah kepada kepupusan oleh IUCN. Kajian ini telah dijalankan di Universiti Putra
Malaysia Kampus Bintulu Sarawak (UPMKB), dari Oktober 2014 hingga Mac 2015. Menerusi
persampelan tangkap-lepas yang meliputi kawasan seluas 37 ha hutan sekunder dan 7.13
ha hutan yang dipulihara, sebanyak 16 ekor kera hantu telah ditangkap menggunakan jaring
kabut manakala seekor kera hantu telah berjaya ditangkap semula. Kepadatan populasi
kera hantu yang ditangkap menggunakan jaring kabut di dalam hutan sekunder adalah
38 individu/km² manakala 28 individu/km² dicatatkan bagi hutan yang dipulihara. Dengan
menggunakan kaedah penangkapan per satu unit usaha (net-jam), masa purata bagi
seekor kera hantu ditangkap di dalam hutan sekunder adalah 26.6 jam/haiwan dan 30 jam/
haiwan di dalam hutan yang dipulihara. Keputusan membuktikan data mengenai kehadiran
kera hantu di dalam kedua-dua hutan sekunder dan hutan yang dipulihara terutamanya di
kampus UPMKB sekaligus menonjolkan nilai pemuliharaan kawasan hutan tersebut.
This is an epidemiological study on injuries and illnesses among Sabah SUKMA athletes in 2018. This study was done retrospectively using a standardized data registry. Incidence of injuries and illnesses were 16.27 and 16.74 per 100 athletes, respectively. Combat sports showed the highest incidence of injuries (45%), mainly involving the head and neck region. Common injuries included muscle strains and ligament sprains. The concussion rate was 1.85 per 100 full contact athletes. Time loss percentage was 1.4%. There were no reports on any severe head injuries or severe concussions. This could be due to the strict implementation of protective gear during competitions. The concussion rate was lower compared to many other international studies. Muscle strains was seen more in high speed sprinting and kicking athletes. The most significant illness affecting Sabahan athletes was an isolated case of mumps. However, contact tracing was activated immediately and there were no reported Mumps outbreaks among Sabahan athletes.
Sejarah awal negara Malaysia yang terdapat dalam pensejarahan Asia Tenggara telah menjadi sumber rujukan di peringkat sekolah dan juga universiti. Periode dari 100EU hingga 1400EU lazimnya mengandungi naratif ringkas mengenai kerajaan tua. Semenanjung Tanah Melayu mewarisi negeri-kerajaan tua Kataha (Kedah), Langkasuka, Panpan, Chihtu dan Baruas yang telah lama terdapat dalam buku sejarah. Bagaimanapun Sarawak kini tidak mewaris apa-apa sedangkan pesisir pantai Borneo di sebelah barat, selatan dan timur terdapat banyak negeri-kerajaan tua seperti Sambas, Mempawah, Pontianak, Landak, Sukadana, Sampit, Banjarmasin, Kutei, Pasri, Bolongan dan Brunei. Terdapat kekosongan dari segi masa dan ruang dalam pensejarahan negeri Sarawak kini. Kajian yang lebih teliti terhadap beberapa sumber primer peribumi di Arkipelago Melayu seperti Silsilah Raja-Raja Brunei dan karya Jawa, Nagarakertagama, telah membongkar beberapa toponim seperti Sarawak, Samarahan, Saribas, Kalaka dan Malanau yang kini merupakan pusat pentadbiran negeri itu. Sumber primer peribumi telah menyatakan bahawa toponim ini adalah negeri yang pernah menjadi jajahan takluk Majapahit selepas itu di bawah Brunei pula. Karangan ini tuba memaparkan naratif ringkas seperti pendekatan yang terdapat dalam pensejarahan Asia Tenggara dan Semenanjung Malaysia. Akhirnya karangan ini mencadangkan negeri kerajaan awal yang diwarisi oleh negeri Sarawak sekarang dinobatkan ke dalam buku sejarah kurikulum sejarah Negara.
Kajian ini untuk menunjukkan bahawa penentuan tanah air umat Melayu perlu dilihat dalam perspektif pendekatan atau teori yang baru, yakni teori 'The New Malay Homeland'. Ahli Linguistik sejarah pada abad ke-20 dan pada abad ini, iaitu pada abad ke-21 banyak telah melakukan kajian untuk membuktikan bahawa sebenarnya umat Melayu bukan bermigrasi daripada Yunan, sebaliknya daripada Taiwan dan kemudiannya menjadikan Borneo sebagai tanah air kedua umat Melayu. Untuk menjitukan lagi teori ini, maka kajian rekonstruksi dan klasifikasi bahasa Iban di Sarawak dilakukan agar maklumat-maklumat fosil linguistik yang wujud dalam bahasa Iban pada peringkat purbanya dapat membuktikan dan memperkukuhkan hujah bahawa teori di atas adalah benar. Dua kaedah kajian diaplikasi dalam penelitian ini, iaitu kaedah kepustakaan dan kaedah lapangan. Kaedah kajian kepustakaan lebih melihat kepada aspek pembacaan untuk mendapatkan maklumat berkaitan bidang kajian. Kajian-kajian awal ke atas bahasa Iban sejak abad ke-18 sehinga abad ke-21 telah diselidiki. Maklumat berkaitan bidang ilmu linguistik bandingan juga telah dibaca secara seksama. Berkaitan kaedah kajian lapangan, metode semak dan metode cakap dengan pengaplikasian teknik-teknik khas telah dilakukan. Berdasarkan lokasi kajian, tujuh varian bahasa Iban telah diteliti, yakni varian Iban Sri Aman (SA), Betong (BTG), Sarikei (SKEI), Sibu (SBU), Kapit (KPT), Bintulu (BTL) dan Limbang (LMBG) . Hasil penelitian menunjukkan bahawa bahasa Iban Purba Sarawak (IPS) memiliki enam fonem vokal *a, *a, *i, *u, *e, *o; tiga diftong *-uy, *-ay, *-aw dan sembilan belas konsonan, iaitu *p, *b, *t, *d, *k, *g, */, *s, *h, *1, *r, *m, *n, *0, *N, *dZ, *tS, *w, dan *y. Beberapa inovasi fonologi juga diperoleh apabila perbandingan dilakukan antara IPS dengan Bahasa Melayik Purba (BMP), iaitu i) BMP *h > IPS */; ii) BMP *-d > IPS *zero, iii) BMP *-g > IPS *zero, iv), dan BMP *r, *1 > IPS *r. Pada tahap morfologi wujud inovasi dan retensi antara IPS dan BMP, iaitu BMP *ni/di > IPS *ba/ dan morfem BMP *{une (N)}, *{be(R)} dan *ite(R)1 diretensi sepenuhnya dalam IPS. Berdasarkan dapatan daripada kajian ini membuktikan bahawa terdapat ikatan rapat antara BMP dengan IPS dapatan ini juga membuktikan bahawa Borneo adalah tanah air kedua umat Melayu setelah umat ini bermigrasi keluar daripada Taiwan.
Eleven pairs of schistosomes, indistinguishable from the classical Schistosoma japonicum, were found in a monkey (Macaca fascicularis) taken near Ranau in North Borneo. The new locality is within the recorded range of the species which extends from Japan, China, Taiwan, and Philippines through Southeast Asia to the Celebes.
There are now more than 28,000 described orthopterans globally (Cigliano et al., 2018) and this figure is likely to increase in the future. The same is true for Southeast Asia, where we are still at a stage of discovering species new to science, and this is partly an artefact of incomplete sampling (Tan et al., 2017a). In one of the most popular biodiversity hotspots, i.e., Borneo, is the Kuala Belalong Field Studies Centre. It is located in the primary lowland and ridge dipterocarp forests of the Ulu Temburong National Park, Brunei Darussalam. Recent collection of orthopterans in the area led to the discovery of several new species of katydids (Tan et al., 2017b; Tan Wahab, 2017a) and crickets (Tan et al., 2017c; Tan Wahab, 2017b). Here, we describe another new species of katydid, from the genus Tapiena Bolívar, 1906. Tapiena currently consists of 26 species (Tan et al., 2015) and is distributed around Asia and even Africa. In Borneo, only one species is known: Tapiena incisa Karny, 1923 from Sarawak (see Karny, 1923). The new species Tapiena paraincisa sp. nov. represents the second species described from Borneo.