Regulatory changes, reporting quality and audit fees: the moderating role of firm characteristics

The objective of this study is to investigate the effect of regulatory changes on financial reporting quality and audit fees and to further test whether this effect was moderated by firm characteristics (i.e. abnormal audit fees, political connections and overlapping directorship) in Nigeria. This study utilised the data of 90 companies listed on the Nigerian stock exchange over the periods 2008-2013. Using Generalized Method of Moments (GMM) technique that takes into account the endogeneity nature of financial reporting quality and audit fees model, the results indicated that financial reporting quality improved in the regulatory changes period. However, abnormal audit fees, political connection and overlapping directorship deteriorated the effect. In addition, the study found an increase in the amount paid as audit fees in the regulatory changes periods and this varied with the perceived riskiness of firm characteristics. Specifically, the increase in financial reporting quality in the regulatory changes periods led to a decrease in audit fees while the perceive riskiness of overlapping directorship increased audit fees in the regulatory changes periods. Further, the perceived riskiness of politically connected firms in the regulatory changes periods did not significantly affect audit fees. Accordingly, future regulatory reforms must be cognizant of these factors. Even though there are abundant empirical studies on financial regulatory changes and their effects on financial reporting quality and audit fees, this study provides additional insights into the regulatory change literature by investigating how firms characteristics (abnormal audit fees, political connection and overlapping directorship) moderates the effect of regulatory changes particularly in Nigeria, one of the less developed and under researched capital markets in the world. Further, the findings of this study are robust with respect to the issues of unobserved heterogeneity and endogeneity which previous studies had failed to consider

Microstructure and tensile properties of friction stir processed Al-Si alloy

In this study, a solid state processing tool for microstructure modification and material properties enhancement; friction stir processing (FSP) was applied on the surface of as-cast Al-Si-Cu-Ni aluminium alloy. Samples were subjected to FSP using fixed tool rotation speed 1400 rpm and traverse speed 42 mm/min, with tool angle tilted 3˚.The influence of the FSP on the microstructure and tensile properties of the cast AlSi-Cu-Ni alloy samples were studied. Microstructural evolution of the samples was investigated using optical microscope (OM) and scanning electron microscope (SEM), tensile test carried out at 1 mm/min cross-head speed. The results showed that FSP improved the tensile strength of the samples by decreasing particles size and porosity. FSP improved the alloy strength by about 54%

Relationship between Greenhouse gas emission, energy consumption, and economic growth : evidence from some selected oil-producing African countries

Open access via Springer CompactPeer reviewedPublisher PD

The Design of a Portable Municipal Waste Incinerator with Fuzzy Logic Based Support for Emission Estimation

A fuzzy logic interface system to estimate oxygen requirement for complete combustion as well as the level of pollution from incinerator gas flue in order to manage solid waste from domestic, institutional, medical and industrial sources was designed. The designed incinerator is double chambered operating with a maximum temperature of 760 °C in the lower chamber and 1000°C in the upper chamber. The insulating wall is made up of a refractory brick of 55mm in thickness having a 2mm thickness low carbon steel as the outer wall. Hydrogen Chloride (HCl) and Nitrous oxides (NO)x are the gases was used to demonstrate the Fuzzy Inference System (FIS) model. The FIS was built with five input variables (Food, PVC, Polythene, Paper and Textile) and three input variables with two membership functions. The FIS was developed to estimation the degree of possibility distribution of pollution that should be expected when a certain composition of waste is incinerated. The plots of composition of waste high in food against oxygen require for combustion gives a possibility distribution of about 0.9 which is high according to the fuzzy set definition while the plot of waste composition high in PVC against HCL shows linearity

Genetic gains in grain yield of a maize population improved through marker assisted recurrent selection under stress and non-stress conditions in west Africa

Open Access JournakMarker-assisted recurrent selection (MARS) is a breeding method used to accumulate favorable alleles that for example confer tolerance to drought in inbred lines from several genomic regions within a single population. A bi-parental cross formed from two parents that combine resistance to Striga hermonthica with drought tolerance, which was improved through MARS, was used to assess changes in the frequency of favorable alleles and its impact on inbred line improvement. A total of 200 testcrosses of randomly selected S1 lines derived from the original (C0) and advanced selection cycles of this bi-parental population, were evaluated under drought stress (DS) and well-watered (WW) conditions at Ikenne and under artificial Striga infestation at Abuja and Mokwa in Nigeria in 2014 and 2015. Also, 60 randomly selected S1 lines each derived from the four cycles (C0, C1, C2, C3) were genotyped with 233 SNP markers using KASP assay. The results showed that the frequency of favorable alleles increased with MARS in the bi-parental population with none of the markers showing fixation. The gain in grain yield was not significant under DS condition due to the combined effect of DS and armyworm infestation in 2015. Because the parents used for developing the bi-parental cross combined tolerance to drought with resistance to Striga, improvement in grain yield under DS did not result in undesirable changes in resistance to the parasite in the bi-parental maize population improved through MARS. MARS increased the mean number of combinations of favorable alleles in S1 lines from 114 in C0 to 124 in C3. The level of heterozygosity decreased by 15%, while homozygosity increased by 13% due to the loss of some genotypes in the population. This study demonstrated the effectiveness of MARS in increasing the frequency of favorable alleles for tolerance to drought without disrupting the level of resistance to Striga in a bi-parental population targeted as a source of improved maize inbred lines

Attitude towards psychiatric treatment and referral pattern in the University of Maiduguri Teaching Hospital- A preliminary report

Objective: There is a paucity of literature on consultation-liaison psychiatry, in northern Nigeria. This study aimed to determine both the pattern of psychiatric referrals, and the attitudes of doctors toward the treatment of mental disorders in a teaching hospital, in northeast Nigeria. Method: In this cross-sectional survey, we used a modified version of the self-rated Kumar 12-item questionnaire and a basic socio-demographic questionnaire to assess a non-random convenient sample of 100 postgraduate resident doctors (with a response rate of 70%) from the University of Maiduguri Teaching Hospital (UMTH). We subjected the dataobtained to descriptive statistical analysis, using EPI info (2003), to report averages. Results: A relatively low percentage (57.1%) of doctors acknowledged treating patients with mental disorders in their practice, with a higher proportion acknowledging referral (75%). Nearly one in five (17.6%) of the respondents were unaware that patients with functional illness could have psychological disorders. We found more awareness for psychotherapy (44.1%) than other non-pharmacological treatment interventions, while10.3% were ignorant of non-pharmacological forms of treatment for psychological problems. Conclusion: Although this is a preliminary report, the research reported here demonstrated that doctors in the teaching hospital concerned recognized the need for psychiatric consultation and referral. It is difficult to draw further conclusions because of the limitations of this study.Keywords: Consultation; Liaison; Psychiatry; northern Nigeri

Political Connections of Boards and the Selection of Auditors in Nigeria

The aim of this study is to examine the relationship between the political connections of board members and the selection of auditors by non-financial listed firms in Nigeria. The financial and non-financial information of 94 non-financial companies listed on the Nigerian Stock Exchange from 2008 to 2013 were analysed using a logistic regression model. The results of the logistic regression revealed that listed companies with politically connected board members were unlikely to appoint a Big 4 audit firm to audit their companies. This was likely because of difficulties in influencing such firms to issue an audit report in their favour. Regulatory bodies can use the outcome of this study to make necessary adjustments in codes directed at reducing the influence of political cronyism on the choice of auditor. Keywords: political connections, auditor selection, Nigeria JEL Classifications: M41, M4

Prevalence and Correlates of Extrapyramidal Side Effects Among Patients with Schizophrenia Spectrum Disorders on Typical and Atypical Antipsychotics

Background: Antipsychotic medication for the treatment of schizophrenia spectrum disorders are associated with adverse effects with extrapyramidal side effects constituting one of the most notable effects associated with poor medication adherence and poor quality of life. Aims: The study aims to compare the prevalence of extrapyramidal side effects (EPSE), among patients with schizophrenia spectrum disorders on typical and atypical antipsychotic medications. The secondary aim is to determine the association of extra-pyramidal side effects with socio-clinical variables. Methodology: A cross-sectional hospital-based study with systematic random sampling recruitment of 340 participants and 303 completed the study. Variables with significant association on chi square analysis were subjected to logistic regression analysis. Results: The overall prevalence of extrapyramidal side effects among patients with schizophrenia spectrum disorder on antipsychotic medication was 42.6 %. The prevalence of tardive dyskinesia, parkinsonism and akathisia were 7.9 %, 38.6 and 3.6 %, respectively. The prevalence of extra-pyramidal side effects due to use of typical, atypical and combination drug was 44.4 %, 51.2 % and 34.5 %, respectively with haloperidol (59.4 %) and risperidone (71.4 %) having the greatest effect. Being elderly was associated with tardive dyskinesia, duration of treatment, severity of illness and type of illness with parkinsonism and severity of illness with akathisia. Conclusion: The findings of this study support the high prevalence of extrapyramidal side effects from either using typical and atypical antipsychotic medications. Therefore, Clinicians should discuss on these side effects and proffer possible solutions with their patients prior to commencement of antipsychotic medications in order to promote medication adherence

Building the capacity of policy-makers and planners to strengthen mental health systems in low- and middle-income countries: a systematic review

Background Little is known about the interventions required to build the capacity of mental health policy-makers and planners in low- and middle-income countries (LMICs). We conducted a systematic review with the primary aim of identifying and synthesizing the evidence base for building the capacity of policy-makers and planners to strengthen mental health systems in LMICs. Methods We searched MEDLINE, Embase, PsycINFO, Web of Knowledge, Web of Science, Scopus, CINAHL, LILACS, ScieELO, Google Scholar and Cochrane databases for studies reporting evidence, experience or evaluation of capacity-building of policy-makers, service planners or managers in mental health system strengthening in LMICs. Reports in English, Spanish, Portuguese, French or German were included. Additional papers were identified by hand-searching references and contacting experts and key informants. Database searches yielded 2922 abstracts and 28 additional papers were identified. Following screening, 409 full papers were reviewed, of which 14 fulfilled inclusion criteria for the review. Data were extracted from all included papers and synthesized into a narrative review. Results Only a small number of mental health system-related capacity-building interventions for policy-makers and planners in LMICs were described. Most models of capacity-building combined brief training with longer term mentorship, dialogue and/or the establishment of networks of support. However, rigorous research and evaluation methods were largely absent, with studies being of low quality, limiting the potential to separate mental health system strengthening outcomes from the effects of associated contextual factors. Conclusions This review demonstrates the need for partnership approaches to building the capacity of mental health policy-makers and planners in LMICs, assessed rigorously against pre-specified conceptual frameworks and hypotheses, utilising longitudinal evaluation and mixed quantitative and qualitative approaches