Technospheric Mining Towards a Circular Economy

Authors: Richard Diaz Alorro, PhD

Volume: 22 (2018) Issue 2, Page: 5, Category: Natural Sciences

Human activities, such as product manufacturing, mining, and ore extraction, chemical and metallurgical processing, road and building construction, municipal and household activities, and agriculture among others, have relocated and accumulated metal and material resources from geological origins to the technosphere.… More
0   338

Non-CO2 Greenhouse Gas Emissions from Field Burning of Crop Residues in the Philippines: 1990-2015

Authors: Jose Hermis P. Patricio

Volume: 22 (2018) Issue 2, Page: 8, Category: Natural Sciences

About 32% of the Philippine land area is devoted for agriculture. Given this, the agriculture sector is expected to increasingly generate significant emissions of non-carbon dioxide (CO2) greenhouse gases (GHG) and their precursors such as methane (CH4), carbon monoxide (CO),… More
0   565

Litterfall Production and Turnover in the Long-Term Ecological Research Sites in Southern Philippines

Authors: Florfe M. Acma, Victoria T. Quimpang, Victor B. Amoroso, Noel P. Mendez

Volume: 22 (2018) Issue 2, Page: 23, Category: Natural Sciences

Forest litter is an important aspect for healthy forest ecosystems. Hence, this study monitored the litterfall production and turnover in the established two-hectare permanent plots in the three Long Term Ecological Research (LTER) Sites in Mindanao, viz., Mt. Apo, Mt.… More
0   259

Underutilized Senna tora (L.) Roxb. - a highly potential multipurpose species for food, feed, medicine and climate resilience for the Philippines

Authors: Joy M. Jamago, Jean L. Valleser, Gerald N. Galleron, April Grace M. Racines, Bryan U. Bactong, Nora M. Ata

Volume: 22 (2018) Issue 2, Page: 36, Category: Natural Sciences

There are thousands of species in the plant kingdom but less than 200 are recognized as major crops. There is even less when it comes to food crops hence food and nutritional insecurity are major concerns in either developed or… More
1   678

Phytochemical screening and in vitro antibacterial activity of Syzygium sp.("O-on") crude extracts against Pseudomonas aeruginosa and Staphylococcus aureus

Authors: Merced G. Melencion, Chris Rey M. Lituañas, Andrew B. Melencion

Volume: 22 (2018) Issue 2, Page: 48, Category: Natural Sciences

Identification and subsequent isolation of anti-dengue active compounds in medicinal plants are potentially useful for developing antiviral chemical analogues. This study investigated the potential use of aqueous, methanolic, and ethanolic extracts of Syzygium sp. “O-on” against bacterial co-infection of Staphylococcus… More
0   286

Phytochemical and Antioxidant Activity Variation of Processed Edible Ferns

Authors: Domingo P. Lodevico , Melania M. Enot , Rainear A. Mendez , Vince R. Abarquez , Gemma Faith B. Monisit , Fulgent P. Coritico , Victor B. Amoroso

Volume: 22 (2018) Issue 2, Page: 57, Category: Natural Sciences

The main and interaction effects on the total phenolic content (TPC), total flavonoid content (TFC) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical seavenging activity of two edible ferns in various food processing methods were investigated. Factors include fern species (Diplazium eculentum and Stenochlaena… More
0   327

Assessment of Termite Infestation in Academic Infrastructure at Central Mindanao University (CMU)

Authors: Mark Jun A. Rojo

Volume: 22 (2018) Issue 2, Page: 68, Category: Natural Sciences

Knowing the pest species first is necessary for the formulation of pest control method. In this study an assessment of termite infestation in the academic buildings was conducted. All wooden materials both furniture and structural member were inspected for signs… More
0   365

Proximate Composition of Raw and Heat-treated Seriales [Flacourtia jangomas (Lour) Raeusch] Fruit

Authors: Lynette C. Cimafranca

Volume: 22 (2018) Issue 2, Page: 74, Category: Natural Sciences

Seriales fruit is an underutilized wild fruit in the Philippines with promising food production potential, however the usual drawback of processing is the change in the composition or properties of the crop or product. Hence, the study aimed to determine… More
0   525
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