scholarly journals A rock-boring and rock-ingesting freshwater bivalve (shipworm) from the Philippines

2019 ◽  
Vol 286 (1905) ◽  
pp. 20190434 ◽  
Author(s):  
J. Reuben Shipway ◽  
Marvin A. Altamia ◽  
Gary Rosenberg ◽  
Gisela P. Concepcion ◽  
Margo G. Haygood ◽  
...  

Shipworms are a group of wood-boring and wood-feeding bivalves of extraordinary economic, ecological and historical importance. Known in the literature since the fourth century BC, shipworms are both destructive pests and critical providers of ecosystem services. All previously described shipworms are obligate wood-borers, completing all or part of their life cycle in wood and most are thought to use wood as a primary source of nutrition. Here, we report and describe a new anatomically and morphologically divergent species of shipworm that bores in carbonate limestone rather than in woody substrates and lacks adaptations associated with wood-boring and wood digestion. The species is highly unusual in that it bores by ingesting rock and is among the very few known freshwater rock-boring macrobioeroders. The calcareous burrow linings of this species resemble fossil borings normally associated with bivalve bioerosion of wood substrates (ichnospecies Teredolites longissimus ) in marginal and fully marine settings. The occurrence of this newly recognized shipworm in a lithic substrate has implications for teredinid phylogeny and evolution, and interpreting palaeoenvironmental conditions based on fossil bioerosion features.

1989 ◽  
Vol 79 ◽  
pp. 103-128 ◽  
Author(s):  
Peter Heather

From the mid-third century, Gothic tribes inhabited lands north of the river Danube; they were destined, however, to play a major role in the destruction of the Roman Empire and the creation of the medieval world order. In the last quarter of the fourth century, in the face of Hun attacks, some Goths (those commonly known as Visigoths) fled into the Roman Empire, winning a famous victory at Hadrianople in 378 and sacking Rome in 410. They later moved further west to found a kingdom in southern Gaul and Spain. Of equal historical importance are those Goths (usually known as Ostrogoths) who remained north of the Danube under Hun domination from c. 375 to c. 450. They too then entered the Empire, and, under Theoderic the Great, established a kingdom in Italy which is known to us through Boethius, Cassiodorus, and Ennodius. Much less well known, however, is the formative stage of their history when the Ostrogoths endured Hun domination, and it is on our sources for this period that this study will concentrate.


2022 ◽  
Vol 3 (6) ◽  
pp. 27-31
Author(s):  
Angel Giovanny Atanacio Pérez ◽  
Tirso J. Hernández Gracia ◽  
Danae Duana Ávila

Some countries in development like China, the Philippines, Nigeria, Pakistan, Bangladesh, Vietnam and Ukraine do an active promotion in order to raise foreign direct investment (FDI) under the proposal of a positive effect in economic growth while implementing this type of fundraising. Thus, it constitutes an important source of external financing, allowing increases in productivity through technologic transfer as well as rises in competitiveness, efficiency in the managerial models, and expand the countries’ exporting capabilities. After the economic crisis experienced in the 80’s, Latin America, specifically countries like Argentina, Brazil and Mexico, that have based their financing in loans, stopped to raise money by these means when the crisis appeared, arising as an alternative the FDI, also on account of the foreign creditors demanding the payment of their issued resources and the warning of not giving any more financing until these countries restructure their economies, it was established the capital stock of the recipient economy. In this context, it was necessary to implement structural reforms, which were contemplated in the “Washington Consensus”, such as price stabilization and fiscal deficit control with the purpose of recovering the trust to investors and reactivating the capital flow through loans or foreign direct investment aimed at Latin America. In 1990, foreign direct investment became the primary source of external financing to peripheral countries (Aitken y Harrison, 1999:1).


2020 ◽  
Vol 39 (3) ◽  
pp. 77-88
Author(s):  
Liladhar R. Pendse

Purpose The access to the rare originals of the early Spanish colonial imprints of the Philippines remains problematic. The reference librarians often are restricted to directing the students and scholars to the secondary resources that are available both in print and as a part of the digital assets within the North American academic libraries. This paper aims to focus on the select primary source editions including select Spanish language colonial imprints that are available electronically on the Web along the Open Access. These Web-based resources serve as the reference tools for the early history of the Philippines and Southeast Asia. As many of these publications are rare and extremely expensive for most libraries, the Open Access resources serve as an aid to building a virtual collection of these items. Design/methodology/approach The author had to create a data set of the early imprints of the Spanish Philippines using several bibliographic resources. The data set will be submitted as an Appendix for this research paper. The author did both qualitative and quantitative analysis of the data set along with the voyant-based digital humanities approach for topic modeling. Findings The goals of this paper were to not only survey the early Spanish printing of the Philippines but also provide the reader with a somewhat complete picture of how the printing began in the Spanish Philippines, what kind of the first books were printed and how one can access them given their rarity and fragility. The collection building paradigms are undergoing significant shifts, and the focus of many academic libraries is shifting toward providing access to these items. As these items high-value low-use items continue to be part of the Special Collections, the access to these is problematic. The virtual collections thus serve as a viable alternative that enables further research and access. While the creators of these works are long gone, the legacy of the Spanish colonial domination, printing and the religious orders in the Philippines remain alive through these works. Research limitations/implications As this is an introductory paper, the author focused on the critical editions rather than providing a comprehensive bibliographic landscape of the presses that produced these editions. He also did not take into consideration many pamphlets that were published in the same period. He also did not consider the Chinese language publications of the Islands. The Chinese had been block printing since medieval times (Little, 1996). In the context of the Spanish Philippines, the Chinese migration and trade have been studied in detail by Chia (2006), Bjork (1998) and Gebhardt (2017). The scope of this paper also was centered toward building a virtual collection of these rare books. Practical implications Rare books are often expensive and out-of-reach for many libraries; the virtual collection of the same along the Open Access model represents an alternative to collect and curate these collections. The stewardship of these collections also acquires a new meaning in the digital milieu. Social implications This research paper will allow scholars to see past the analog editions and help them focus on curating a virtual collection. The questions of electronic access are often ignored when it comes to visiting and using them in a controlled environment of the reading room in the Special Collections. The author argues that one way to enable access to these rare and expensive books is to provide access to their digital counterparts. These digital/virtual surrogates of the originals will facilitate further research. Originality/value The author could not find similar research on the publications of the early Spanish colony of the Philippines.


Author(s):  
Josefina L. Resurreccion ◽  
Maria Victoria U. Sy

The Bangko Sentral ng Pilipinas formulates and implements monetary policies to attain its mandated responsibilities of maintaining price stability and attaining a sustainable and balanced growth.  To concretize these goals, BSP pursues knowledge management practices to accumulate the right kind of information and render timely business services. Furthermore, the Bank adheres to the concept of business continuity to avoid any disruption in the delivery of services if business outages do occur.The primary purpose of this study was to determine the extent to which knowledge management and business continuity practices were implemented among the various regional and branch offices of BSP.  The research was done with the end view of proposing an intervention scheme to strengthen its implementation.  The study made use of the descriptive method of research using the questionnaire as the primary source of data.  The findings revealed that the practices on the two projects were manifested to a great extent that contributed to the improvement of the Bank’s services.  However, it can be gleaned from the results that there is a need to revisit the various components of the two projects periodically to ensure its relevance in attaining sustainable economic and financial objectives.   Keywords - Business Education, Central Bank of the Philippines, monetary policies, knowledge management, business continuity practices, sustainable and balanced growth, descriptive design, Philippines, Asia


Author(s):  
Rolando A. Alimen ◽  
Ralph L. Pador ◽  
Cicero D. Ortizo ◽  
John G. Aspiracion

The study determined the perceptions of JBLFMU-Molo faculty and students and their views on Silver Pompano as a mariculture study. Quantitative method of research was employed through the use of the data-gathering instruments and interview. Respondents of the study were the 75 marine instructors and students at the maritime university in the Philippines. Descriptive statistics used were frequency, percentage, and rank. Results revealed that the Silver Pompano (Trachinotus blochii) mariculture is an attempt to take part in the environment and global warming mitigation issues. Most of the respondents observed that the global warming/extreme heat is the major problem that confronts the environment today. The respondents’ primary source of information regarding global warming mitigation was the news from the media. They also perceived that the major cause of global warming problems was due to man’s act of negligence. Majority of the respondents in the study were involved in environmental-friendly global warming activities. The study concluded that an effort to take part in the activities towards sustainableenvironmental global warming initiatives lead to a willingness to take roles in the planning stage of any program.   Keywords - mariculture project, Siliver Pompano, global warming, maritime university


2006 ◽  
Vol 34 (1) ◽  
pp. 86-102 ◽  
Author(s):  
Raul Pertierra

AbstractThe self-understanding of a national community as a culturally homogeneous and spatiotemporally delimited entity provided the model for a distinct sphere of the social. It was this new understanding of the social as a theoretical category that made sociology possible. The modern nation-state and sociology are intimately linked. But even as social science requires the resources of the nation-state, it is equally dependent on a vigorous civil culture distinct from the state. Society is the ultimate source for the state's legitimacy. Society arises out of an association of which the nation-state, however important, is but one expression.Technological and economic development is now often used as justifications for the nation-state. But in the present global context, the nation-state is no longer the primary source for knowledge or investment, at least for countries such as the Philippines. The boundaries between nation-states have become porous as center and periphery are increasingly intertwined. Under these conditions, identities no longer represent cores but rather intersections of experience.No longer grounded in a local routine of everyday life with its corresponding set of collective images, culture increasingly becomes merely representation or the domain of signifying practices rather than the arena of practical significations. Under these conditions, where culture is not necessarily collectively shared but only synchronically networked, it becomes almost a personal quest rather than a communal affair. The expression of such a diasporal and subjective identity is manifested in the rise of new forms of ethnicities. In these contexts, culture can be visualized as landscapes and experienced as representations.Cartesian space-time assumes the homogeneous nature of extension/duration, such that any point in the system of coordinates can be expressed as a value of a given function. For modernity, the social can be plotted or imagined as one such function, all of whose members are linked to one another spatio-temporally. A nation-state is a collectivity whose functional representation assumes that all its members share a simultaneous present, and hence, a commonly anticipated future. Any point on this set of spatio-temporal coordinates is functionally linked to other points through membership in a common order called the nation-state.Nation-states see themselves as culturally homogeneous to facilitate the rational negotiation of difference. This view of culture is possible (but not necessary) because modernity is based on a sense of simultaneous presentness generating a commonly anticipated future. Modern society is an association of individuals functionally coordinating their actions to this simultaneous present. However, globality is making other presents possible, resulting in a world with an excess of meaning but a lack of sense.A feature of modernity is the crucial role of knowledge for the expression, maintenance and reproduction of power. While knowledge represents a form of power in all societies, certain modes of power can only be expressed through their relationship with knowledge. Hence, the functionalization of society is a pre-condition for power to be exercised through its control of knowledge. Power requires new forms of knowledge, such as social science, for its effectiveness in modern society. A critical social science is necessary to counterbalance modern society's functional goals if social science is also to play an emancipatory role.he indigenization of social science is an attempt to formalize this distinct perspective but its insistence on unproblematically using the nation as its referent limits its usefulness. In the present condition, the nation-state is no longer the primary site for knowledge-production or identity-formation. These practices now involve personal, local, global and other choices, following their increasingly polyvalent nature. In its attempts to imagine the nation through indigenous concepts, a Philippine social science risks essentializing Filipinohood by reducing its differences. Instead, a Philippine social science should explore the rich sources of difference within civil and global society, as well as point out the contingent and narrow interests of nation-states, thereby helping to establish a universal basis for understanding. This understanding sees social science as part of the human quest for emancipation.


2018 ◽  
Author(s):  
Thais L. Brito ◽  
Amanda B. Campos ◽  
F.A. Bastiaan von Meijenfeldt ◽  
Julio P. Daniel ◽  
Gabriella B. Ribeiro ◽  
...  

AbstractTeredinidae is a family of highly adapted wood-feeding and wood-boring bivalves, commonly known as shipworms, whose evolution is linked to the acquisition of cellulolytic gammaproteobacterial symbionts harbored in bacteriocytes within the gills. In the present work we applied metagenomics to characterize microbiomes of the gills and digestive tract ofNeoteredo reynei, a mangrove-adapted shipworm species found over a large range of the Brazilian coast. Comparative metagenomics grouped the symbiotic gammaproteobacterial community of gills of differentN. reyneispecimens, indicating closely related bacterial types are shared, while intestine and digestive glands presented related, and more diverse microbiomes that did not overlap with gills. Annotation of assembled metagenomic contigs revealed that the symbiotic community ofN. reyneigills was a hotspot of woody-polysaccharides degrading hydrolase genes, and Biosynthetic Gene Clusters (BGCs), while in contrast, the digestive tract microbiomes seems to play little role in wood digestion and secondary metabolites biosynthesis. Metagenome binning recovered the nearly complete genome sequences of two symbioticTeredinibacterstrains from the gills, a representative ofTeredinibacter turnerae“clade I” strain, and a yet to be cultivatedTeredinibactersp. type. TheseTeredinibactergenomes, as well as unbinned gill-derived gammaproteobacteria contigs, code for novelty including an endo-β-1,4-xylanase/acetylxylan esterase multi-catalytic carbohydrate-active enzyme, and a trans-acyltransferase polyketide synthase (trans-AT PKS) gene cluster with the gene cassette for generating β-branching on complex polyketides. Multivariate analyzes have shown that the secondary metabolome encoded on the genomes ofTeredinibacterrepresentatives, including the genomes binned fromN. reyneigill’s metagenomes, stand out within the Cellvibrionaceae family by size, and enrichments for polyketide, nonribosomal peptide and hybrid BGCs. Results grouped here add to the growing characterization of shipworm symbiotic microbiomes and indicate that theN. reyneigill gammaproteobacterial community is a prolific source of biotechnologically relevant enzymes for wood-digestion and bioactive compounds production.


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