Nnewi is situated some 30 kilometres South East of Onitsha in Anambra State in the southeastern part of Nigeria. This highly commercial town has undergone rapid urbanisation and industrialisation within the past two decades, since the end of the 1967–1970 Nigerian civil war. The Igbo community of the study area had traditionally employed bioconversion methods and other indigenous technology to process or recycle bio and non-degradable wastes. Industrialisation has enjoyed priority status in this locality as a requirement for modernisation and (...) economic progress. The rapid urbanisation, aggressive industrialisation, and the attendant uncontrolled population growth have had a deleterious impact on the environment. There is now a wide range of industrial wastes that are released daily into the environment. Effects of these activities on the socio-cultural practices of the people, plant genetic resources and the environment are highlighted. In addition to palliative measures suggested here, a call is made to revisit the successful indigenous waste treatment and management technology formerly practised by the Igbo community. The importance of combining modern biotechnological approaches with the indigenous technology, norms and practices of Nwewi people to effect suitable waste treatment and management, as well as improving the living habits and the education of the people about their environment, is recommended. (shrink)

Plutarch, in his work,_ Peri __Deisidaimon_ia_ __,_ presents a striking portrayal of superstition in the First Century. The Philosopher who also served for decades as a priest of Apollo portrays the pernicious effects of some supposed religious practices as worse than the outcome of atheism. His position constitutes a forceful explanation to ostensibly controversial socio-religious behaviours. This article discusses some of the priest’s concerns as well as his rebuff of religious attitudes that are borne out of what he describes as (...) misrepresentation of the gods or superstition. Plutarch’s essay is seen as illustrating a reason for a socio-religious situation in Africa, a continent that shares a similar religious background with the world of the writer. Specifically, with the example of the hard fight against street begging in some parts of Nigeria, the article shows how social reform programmes could fail when effects of traditional African beliefs and cultural practices remain potent. __. (shrink)

In a series of recent papers, Jonathan Schaffer presents a novel framework for understanding grounding. Metaphysical laws play a central role. In addition, Schaffer argues that, contrary to what many have thought, there is no special 'explanatory gap' between consciousness and the physical world. Instead, explanatory gaps are everywhere. I draw out and criticize the methodology for metaphysics implicit in Schaffer's presentation. In addition, I argue that even if we accept Schaffer's picture, there remains a residual explanatory gap between consciousness (...) and the physical. The residual gap does most of the same philosophical work as the original. Schaffer has introduced a troublesome metaphysical methodology that fails to follow through on its biggest promise: to deflate the explanatory gap. (shrink)

Cultural taboos and their sanctionshave helped to check abuse of the environmentat least among the local people. The disregardfor these traditional checks and balancesespecially among Christians has adverselyaffected their enforcement at this time. Theenvironment and culture preservation inAwka-South were investigated. The faithfulobservance of the traditional laws in the studyarea was attributed to the fact that Awka-Southarea had remained occupied by the same peoplefor centuries. The study showed that thepreserved forests and their shrines in Nibotown have largely remained intact. In Nisetown, (...) however, with nine shrines still inexistence, the rules have relaxed a little,mainly because they embraced modernization. Inthis town, the fringes of the forests may beused for farming but no felling of trees wouldbe allowed. The ``god'' of the shrine in Obunaguvillage was much revered until the advent ofChristianity. This religion has had an erodingeffect on the taboos, which were put in placeto protect their forests and streams. Theabandonment of traditional cultural practicesis doing harm that goes beyond the abrogationof traditional cultural practices to seriousthreat to natural environmental structures. Thecultures of the different tribes in Nigerianeed to be revisited for evaluation and studiesto enable their integration into modernpractices that will make the environment moresustainable. This will be more productive thanthe unilateral introduction of programs,execution, and maintenance methods that arecompletely new, or in many cases run contraryto the cultural practices of the local peopleand tribes of Nigeria. (shrink)

Recall that B is PA relative to A if B computes a member of every nonempty $\Pi ^0_1(A)$ class. This two-place relation is invariant under Turing equivalence and so can be thought of as a binary relation on Turing degrees. Miller and Soskova [23] introduced the notion of a $\Pi ^0_1$ class relative to an enumeration oracle A, which they called a $\Pi ^0_1{\left \langle {A}\right \rangle }$ class. We study the induced extension of the relation B is PA relative (...) to A to enumeration oracles and hence enumeration degrees. We isolate several classes of enumeration degrees based on their behavior with respect to this relation: the PA bounded degrees, the degrees that have a universal class, the low for PA degrees, and the ${\left \langle {\text {self}\kern1pt}\right \rangle }$ -PA degrees. We study the relationship between these classes and other known classes of enumeration degrees. We also investigate a group of classes of enumeration degrees that were introduced by Kalimullin and Puzarenko [14] based on properties that are commonly studied in descriptive set theory. As part of this investigation, we give characterizations of three of their classes in terms of a special sub-collection of relativized $\Pi ^0_1$ classes—the separating classes. These three can then be seen to be direct analogues of three of our classes. We completely determine the relative position of all classes in question. (shrink)

Philosophy of Tsong-kha-pa Blo-bzang-grags-pa's Lam rim chen mo.

This article has a double purpose: to argue for some specific points on Cicero's rhythm, and to show how the significance of rhythm for literary understanding is larger than has perhaps been perceived. The piece is based on a reading of the whole of Cicero; but it will make only occasional reference to the letters. The question of rhythm in the letters is particularly involved, and it will be best handled elsewhere.

This article has a double purpose: to argue for some specific points on Cicero's rhythm, and to show how the significance of rhythm for literary understanding is larger than has perhaps been perceived. The piece is based on a reading of the whole of Cicero; but it will make only occasional reference to the letters. The question of rhythm in the letters is particularly involved, and it will be best handled elsewhere.

If we had no idea which parts of Greek literature in a certain period were poetry or prose, we would regard it as our first job to find out. How much of the Greek prose of the Imperial period is rhythmic has excited less attention; and yet the question should greatly affect both our reading of specific texts and our understanding of the whole literary scene. By ‘rhythmic’ prose, this article means only prose that follows the Hellenistic system of rhythm (...) started, it is said, by Hegesias, and adopted by Cicero and by many Latin writers of the Imperial period. Estimates of how much Greek Imperial prose is rhythmic have long varied drastically. Some experts suggest that all or much artistic Greek prose in the period is rhythmic, others that what little there is fades out after the first centurya.d., as part of the victory of Atticism. There has been fairly little substantial work on rhythmic prose in the first three centuriesa.d.for over fifty years. The object of this article is to investigate a large part of one author's work thoroughly, and to establish that that part is rhythmic. It will also aim to show how that conclusion should greatly affect our whole conception of the author as a writer, and our reading of his every sentence. (shrink)

In spite of the labours of Sedlmayer,1 Ehwald2 and Palmer,3 it cannot be said that there exists a completely satisfactory edition of Ovid's Heroides. One or all of these editors sometimes leave a corrupted text, sometimes adhere too closely to a manuscript reading, and sometimes introduce untenable emendations. A new edition is called for, with revised collati ons of the known manuscripts, and an augmented apparatus criticus, exhibiting the large class of what I may term the ‘Vulgate’ manuscripts, which represents (...) a tradition different from, and probably later than that of our chief authority, the excellent but unfortunately incomplete eleventh-century Parisinus , which, like all primary manuscripts of this type, contains many readings or corruptions which should not on account of its mere authority be accepted slavishly. Light is often thrown on the text from less important sources, and the truth may be recovered from manuscripts of the ‘Vulgate’ family, where our better authority fails. In this connexion the study of my own manuscript has led me to some conclusions in certain passages which I venture to set forth as suggestions towards an improved constitution of the text of the Heroides. Though it is clear from the preceding investigation into its nature that O is no primary manuscript, but belongs rather to that large class which has passed through various stages of reproduction involving alterations due either to carelessness of copyists or, more rarely, to deliberate alteration, it presents at the same time a phenomenon not unusual with such manuscripts, inasmuch as it often supports the best tradition, and in some cases preserves a reading which yields the truth, or from which the truth can be elucidated. I have used the following symbols: P = Parisinus 8242 s. xi. E = Etonensis s. xi. G = Gueferbytanus s. xii. V = Schedae Vindobonenses s xii. O = my manuscript s. xiv. D = Dresdensis s. xiii. ω = all or the majonly of the ‘Vulgate’ manuscripts. ζ = some of these manuscripts. (shrink)

In spite of the labours of Sedlmayer,1 Ehwald2 and Palmer,3 it cannot be said that there exists a completely satisfactory edition of Ovid's Heroides. One or all of these editors sometimes leave a corrupted text, sometimes adhere too closely to a manuscript reading, and sometimes introduce untenable emendations. A new edition is called for, with revised collati ons of the known manuscripts, and an augmented apparatus criticus, exhibiting the large class of what I may term the ‘Vulgate’ manuscripts, which represents (...) a tradition different from, and probably later than that of our chief authority, the excellent but unfortunately incomplete eleventh-century Parisinus, which, like all primary manuscripts of this type, contains many readings or corruptions which should not on account of its mere authority be accepted slavishly. Light is often thrown on the text from less important sources, and the truth may be recovered from manuscripts of the ‘Vulgate’ family, where our better authority fails. In this connexion the study of my own manuscript has led me to some conclusions in certain passages which I venture to set forth as suggestions towards an improved constitution of the text of the Heroides. Though it is clear from the preceding investigation into its nature that O is no primary manuscript, but belongs rather to that large class which has passed through various stages of reproduction involving alterations due either to carelessness of copyists or, more rarely, to deliberate alteration, it presents at the same time a phenomenon not unusual with such manuscripts, inasmuch as it often supports the best tradition, and in some cases preserves a reading which yields the truth, or from which the truth can be elucidated. I have used the following symbols:P = Parisinus 8242 s. xi.E = Etonensis s. xi.G = Gueferbytanus s. xii.V = Schedae Vindobonenses s xii.O = my manuscript s. xiv.D = Dresdensis s. xiii.ω = all or the majonly of the ‘Vulgate’ manuscripts.ζ = some of these manuscripts. (shrink)

Dog ownership is believed to benefit owner wellbeing but, contrary to popular belief, there is limited evidence to suggest that simply owning a dog is associated with improved mental health. This mixed-methods study investigates whether dog owners with stronger relationships with their dogs experience better mental health. Participants completed an online survey. Owners’ health was measured using the validated PROMIS questions regarding depression, anxiety, emotional support, and companionship. The dog–owner relationship was measured using the validated MDORS scale, which has three (...) subscales: interaction, emotional closeness, and perceived costs. Univariable and multivariable linear regression analyses were conducted, adjusting for confounding factors. Additionally, positive and negative impacts of dog ownership on mental wellbeing were coded from open questions using thematic analysis. A stronger dog–owner relationship was associated with greater feelings of emotional support and companionship but poorer mental health in terms of anxiety or depression. However, the perceived costs subscale was consistently associated with better mental health outcomes. Direction of causality cannot be inferred as people with poor mental health may acquire dogs to help relieve symptoms, which qualitative analysis supported. Key themes included positive impacts on owner wellbeing and happiness through providing purpose, companionship and self-acceptance, pleasure and distraction, as well as lessening emotional pain and suffering and reducing risk behaviors. However, negative impacts of a strong relationship include anticipatory grief over loss of the dog, and concerns regarding the burden of responsibility and ability to meet dog’s needs. Perceived ability to adequately meet dog’s needs promoted personal growth and positive relationships with others, whereas perceived inability led to feelings of guilt, or anger/frustration, and reduced autonomy and sense of environmental mastery. Dog ownership contributes to both hedonic and eudaimonic wellbeing in multiple ways, including supporting owners through periods of poor mental health and providing purpose. However, the burden of responsibility and owner and dog characteristics can create challenges, and owners may benefit from support in caring for their dogs and reducing problematic behaviors. (shrink)

The objectives of this study were to develop a high-density chromosome bin map of homoeologous group 7 in hexaploid wheat, to identify gene distribution in these chromosomes, and to perform comparative studies of wheat with rice and barley. We mapped 2148 loci from 919 EST clones onto group 7 chromosomes of wheat. In the majority of cases the numbers of loci were significantly lower in the centromeric regions and tended to increase in the distal regions. The level of duplicated loci (...) in this group was 24% with most of these loci being localized toward the distal regions. One hundred nineteen EST probes that hybridized to three fragments and mapped to the three group 7 chromosomes were designated landmark probes and were used to construct a consensus homoeologous group 7 map. An additional 49 probes that mapped to 7AS, 7DS, and the ancestral translocated segment involving 7BS also were designated landmarks. Landmark probe orders and comparative maps of wheat, rice, and barley were produced on the basis of corresponding rice BAC/PAC and genetic markers that mapped on chromosomes 6 and 8 of rice. Identification of landmark ESTs and development of consensus maps may provide a framework of conserved coding regions predating the evolution of wheat genomes. (shrink)

For this, the second of four volumes comprising the papers submitted for publication by the invited participants to the Fifth International Congress of Logic, Methodology, and Philosophy of Science, held at the University of Western Ontario in 1975, the editors have selected papers concerned with "foundational problems" in the physical sciences, biology, psychology, and the social sciences. In spite of the wide range of papers included in the volume, the reader never learns exactly what constitutes a foundational problem in the (...) philosophy of science. Would it be reasonable to suppose that foundational problems focus upon the basic logical, epistemological, and metaphysical issues posed by the special sciences, to the exclusion of purely methodological and strictly historical issues? In fact, the contributions to this volume cover the entire scope of metaphysical, epistemological, logical, methodological, historical, and quasi-historical questions that are conventionally classified under the philosophy of science in contemporary academic discourse. There are essays on the genesis of the universe, the methodology of physics, and quantum mechanics; essays on various topics in the philosophy of biology—including the ontological status of species, theories and observation in developmental biology, determinism and teleology, and genetic information; essays on problems in the philosophy of psychology-including consciousness and the brain, causality and action, and methodological problems in the investigation of human activity; three essays on learning theory; and several essays on problems in the philosophy of social science—including methodology, axiological problems, and four papers on the concept of rationality which are principally concerned with J. Harsanyi’s researches on the contribution of Bayesian decision theory and recent developments in game theory to the understanding of rational behavior. (shrink)

A total of 1918 loci, detected by the hybridization of 938 expressed sequence tag unigenes from 26 Triticeae cDNA libraries, were mapped to wheat homoeologous group 4 chromosomes using a set of deletion, ditelosomic, and nulli-tetrasomic lines. The 1918 EST loci were not distributed uniformly among the three group 4 chromosomes; 41, 28, and 31% mapped to chromosomes 4A, 4B, and 4D, respectively. This pattern is in contrast to the cumulative results of EST mapping in all homoeologous groups, as reported (...) elsewhere, that found the highest proportion of loci mapped to the B genome. Sixty-five percent of these 1918 loci mapped to the long arms of homoeologous group 4 chromosomes, while 35% mapped to the short arms. The distal regions of chromosome arms showed higher numbers of loci than the proximal regions, with the exception of 4DL. This study confirmed the complex structure of chromosome 4A that contains two reciprocal translocations and two inversions, previously identified. An additional inversion in the centromeric region of 4A was revealed. A consensus map for homoeologous group 4 was developed from 119 ESTs unique to group 4. Forty-nine percent of these ESTs were found to be homoologous to sequences on rice chromosome 3, 12% had matches with sequences on other rice chromosomes, and 39% had no matches with rice sequences at all. Limited homology was found between wheat ESTs on homoeologous group 4 and the Arabidopsis genome. Forty-two percent of the homoeologous group 4 ESTs could be classified into functional categories on the basis of blastX searches against all protein databases. (shrink)

A total of 944 expressed sequence tags generated 2212 EST loci mapped to homoeologous group 1 chromosomes in hexaploid wheat. EST deletion maps and the consensus map of group 1 chromosomes were constructed to show EST distribution. EST loci were unevenly distributed among chromosomes 1A, 1B, and ID with 660, 826, and 726, respectively. The number of EST loci was greater on the long arms than on the short arms for all three chromosomes. The distribution of ESTs along chromosome arms (...) was nonrandom with EST clusters occurring in the distal regions of short arms and middle regions of long arms. Duplications of group 1 ESTs in other homoeologous groups occurred at a rate of 35.5%. Seventy-five percent of wheat chromosome 1 ESTs had significant matches with rice sequences, where large regions of conservation occurred between wheat consensus chromosome 1 and rice chromosome 5 and between the proximal portion of the long arm of wheat consensus chromosome 1 and rice chromosome 10. Only 9.5% of group 1 ESTs showed significant matches to Arabidopsis genome sequences. The results presented are useful for gene mapping and evolutionary and comparative genomics of grasses. (shrink)

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