bluuebunny/crossref_metadata_2025_split huggingface dataset:
Molecular insights into the inhibition of plasmepsins by HIV-1 protease inhibitors: Implications for antimalarial drug discovery
Authors: Mishra Vandana , Rathore Ishan , Deshmukh Anuradha , Patankar Swati , Gustchina Alla , Wlodawer Alexander , Yada Rickey Y. , Bhaumik Prasenjit 
Published: September 2021

1.AbstractMalaria is a deadly disease, and the worldwide emergence of drug resistance in the Plasmodium parasites demands the development of novel and potent antimalarials. HIV-1 protease inhibitors (HIV-1 PIs) alleviate the Plasmodium pathogenesis during malaria/HIV-1 co-infection plausibly by inhibiting vacuolar plasmepsins (PMs), the hemoglobin degrading proteases from P. falciparum. All five FDA-approved HIV-1 PIs tested against PMII exhibit the Ki values in the low micromolar range of which RTV and LPV display the highest inhibition activity. Both inhibitors impede in vitro growth of P. falciparum at low micromolar IC50 values. We report the first crystal structures of PMII complexed with RTV and LPV that reveal the binding mode and interactions of the inhibitors in the active site as well as elucidate the mechanism underlying their differential potency. The conformational flexibility of the P4 group in RTV allows it to explore multiple regions of the S4 pocket. The present study establishes vacuolar PMs as potential drug targets of HIV-1 PIs. The molecular details explaining the inhibitory mechanism of HIV-1 PIs might be crucial in designing novel and potent antimalarial analogs. This work strengthens the prospect of drug repurposing as an alternative strategy towards antimalarial treatments and provides an opportunity to tackle malaria and HIV-1 co-infection.
Cell and circuit origins of fast network oscillations in the mammalian main olfactory bulb
Authors: Burton Shawn D. , Urban Nathaniel N. 
Published: September 2021

ABSTRACTNeural synchrony generates fast network oscillations throughout the brain, including the main olfactory bulb (MOB), the first processing station of the olfactory system. Identifying the mechanisms synchronizing neurons in the MOB will be key to understanding how network oscillations support the coding of a high-dimensional sensory space. Here, using paired recordings and optogenetic activation of glomerular sensory inputs in MOB slices, we uncovered profound differences in principal mitral cell (MC) vs. tufted cell (TC) spike-time synchrony: TCs robustly synchronized across fast- and slow-gamma frequencies, while MC synchrony was weaker and concentrated in slow-gamma frequencies. Synchrony among both cell types was enhanced by shared glomerular input but was independent of intraglomerular lateral excitation. Cell-type differences in synchrony could also not be traced to any difference in the synchronization of synaptic inhibition. Instead, greater TC than MC synchrony paralleled the more periodic firing among resonant TCs than MCs and emerged in patterns consistent with densely synchronous network oscillations. Collectively, our results thus reveal a mechanism for parallel processing of sensory information in the MOB via differential TC vs. MC synchrony, and further contrast mechanisms driving fast network oscillations in the MOB from those driving the sparse synchronization of irregularly-firing principal cells throughout cortex.
Crystal and molecular structures of some phosphane-substituted cymantrenes [(C5H4
X)Mn(CO)LL′] (X = H or Cl, L = CO, L′ = PPh3 or PCy3, and LL' = Ph2PCH2CH2PPh2)
Authors: Sünkel Karlheinz , Klein-Hessling Christian 
Published: September 2021

UV irradiation of tetrahydrofuran solutions of [CpMn(CO)3] (Cp = π-C5H5 or π-C5H4Cl) in the presence of the phosphanes PPh3 or PCy3 (Cy = cyclohexyl) and Ph2PCH2CH2PPh2 yields the substitution products [CpMn(CO)2PR
3] (R = Ph or Cy) and [CpMn(CO)(Ph2PCH2CH2PPh2)], namely, dicarbonyl(η5-cyclopentadienyl)(triphenylphosphane-κP)manganese(I), [Mn(C5H5)(C18H15P)(CO)2], 1a, dicarbonyl(η5-1-chlorocyclopentadienyl)(triphenylphosphane-κP)manganese(I), [Mn(C5H4Cl)(C18H15P)(CO)2], 1b, dicarbonyl(η5-cyclopentadienyl)(tricyclohexylphosphane-κP)manganese(I), [Mn(C5H5)(C18H33P)(CO)2], 2a, dicarbonyl(η5-1-chlorocyclopentadienyl)(tricyclohexylphosphane-κP)manganese(I), [Mn(C5H4Cl)(C18H33P)(CO)2], 2b, carbonyl(η5-cyclopentadienyl)[1,2-bis(diphenylphosphanyl)ethane-κ2
P,P′]manganese(I), [Mn(C5H5)(C26H24P2)(CO)], 3a, and carbonyl(η5-1-chlorocyclopentadienyl)[1,2-bis(diphenylphosphanyl)ethane-κ2
P,P′]manganese(I), [Mn(C5H4Cl)(C26H24P2)(CO)], 3b, The crystal structure determinations show a very small influence of the chlorine substitution and a moderate influence of the phosphane substitution on the bond lengths. The PR
3 groups avoid being eclipsed with the C—Cl bonds. All the compounds employ weak C—H...O interactions for intermolecular association, which are enhanced by C—H...Cl contacts in the chlorinated products.
The shock of lockdown on the spending on wine in the Iberian market: the effects of procurement and consumption patterns
Authors: Compés Raúl , Faria Samuel , Gonçalves Tânia , Rebelo João , Pinilla Vicente , Simon Elorz Katrin 
Published: September 2021

PurposeThis study aims to provide a better understanding of the behaviour of wine consumers in a completely new and unexpected setting, that is, a forced lockdown due to the COVID-19 pandemic. It seeks to explain consumer decisions and the probability of changes occurring in wine expenditure compared to a normal situation.Design/methodology/approachThe empirical analysis, conducted on a representative sample of Iberian consumers and based on the random utility theory, consists in the application of a multinomial logit model, setting the “usual” pattern of expenditure as a baseline category.FindingsThe results show that the coronavirus pandemic could have changed alcohol drinking habits. Consumers generally spent less on wine during the lockdown, maybe due to the uncertainty regarding their future income and professional situation. Those people more likely to spend more on wine were those who increased their wine consumption during the lockdown, those who drank for romantic purposes, those who purchased less wine in supermarkets but more online, those who used a wine app and those living in urban areas. The increased consumption of other alcoholic beverages also increases the probability of spending less than usual on wine. Additionally, the absence of certain reasons for drinking wine other than social purposes, such as wine and food pairing, its taste and relaxing effects, together with the previous consumption pattern leads to a decrease in the probability of spending less per bottle.Originality/valueThis paper makes a significant contribution to the understanding of the determinants of wine consumption in a very abnormal setting, an imposed lockdown and provides important policy implications. The findings show that managers and policymakers should pay attention to the different influence of variables related to behaviour and consumption patterns that may contribute to an increase in the demand for less expensive wines. Specifically, they should focus on new consumption patterns that may arise, adapting the supply chain and defining appropriate marketing strategies to fill new market segments.
Competency framework to integrate lean construction and integrated project delivery on construction megaprojects: towards a future of work global initiatives in multinational engineering organisations
Authors: Evans Martin , Farrell Peter , Elbeltagi Emad , Dion Helen 
Published: September 2021

PurposeBuilt environment organisations face global challenges between business units, especially since the coronavirus pandemic (COVID-19) has profoundly disrupted the construction industry worldwide, including the management of construction megaprojects (CMPs). This research aims to develop a competency framework, for global integrated delivery (GID) transformative initiatives and future of work (FOW) global initiatives, to manage integration between lean construction (LC) practices and integrated project delivery (IPD) on CMPs in contemporary multinational engineering organisations.Design/methodology/approach“Mixed research methods” involves a two-stage quantitative and qualitative research approach. In the context of CMPs, stage one consisted of a qualitative research methodology comprising a literature review to examine competencies, COVID-19 impacts, responses and key drivers (KDs) to integrate LeanIPD&GID; stage one outcomes propose a conceptualisation of LeanIPD&GID, a competency framework and future of work (FOW) global initiatives. Stage two involved an empirical questionnaire survey for a set of 30 KDs arranged into five-factor clusters (FCs), 226 respondents from 23 countries with an extensive cosmopolitan experience; analysis adopted structural equation modelling (SEM), descriptive and inferential statistics, percentage scoring analysis, principal component analysis (PCA) and eigenvalues.FindingsIn the context of CMPs, stage one outcomes delivered a conceptualisation of LeanIPD&GID, a proposed competency framework and FOW global initiatives. Stage two concluded that the most significant KDs are “collaboration in design, construction works and engineering management,” “coordination and planning of construction work,” “senior organisational management support,” “boosting implementation of LC, and integrating project delivery” and “earlier and precise 3D visualisation of designs”. building information modelling (BIM) adoption in the MENA region is higher than LC; the second is still taking its first steps, while IPD has little implementation. LeanBIM is slightly integrated, while LeanIPD integration is almost not present.Originality/valueThe research findings, conceptualised LeanIPD&GID principles, a proposed competency framework and FOW global initiatives, provided future research streams and directions; the study has provided a competency framework and FOW global initiatives for effective practical strategies for enhancing integration of LeanIPD&GID transformative initiatives on CMPs and will allow project key stakeholders to place emphasis on boosting LeanIPD&GID KDs.
High-pass NGD characterization of resistive-inductive network based low-frequency circuit
Authors: Guerin Mathieu , Wan Fayu , Gorshkov Konstantin , Huang Xiaoyu , Tishchuk Bogdana , Sahoa Frank Elliot , Chan George , Baccar Sahbi , Rahajandraibe Wenceslas , Ravelo Blaise 
Published: September 2021

PurposeThe purpose of this paper is to provide the high-pass (HP) negative group delay (NGD) circuit based (RL) network. Synthesis and experimental investigation of HP-NGD circuit are developed.Design/methodology/approachThe research work methodology is organized in three phases. The definition of the HP-NGD ideal specifications is introduced. The synthesis method allowing to determine the RL elements is developed. The validation results are discussed with comparison between the calculated model, simulation and measurement.FindingsThis paper shows a validation of the HP-NGD theory with responses confirming NGD optimal frequency, value and attenuation of about (9 kHz, −1.12 µs, −1.64 dB) and (21 kHz, −0.92 µs, −4.81 dB) are measured. The tested circuits have experimented NGD cut-off frequencies around 5 and 11.7 kHz.Research limitations/implicationsThe validity of the HP-NGD topology depends on the coil self-inductance resonance. The HP-NGD effect is susceptible to be penalized by the parasitic elements of the self.Practical implicationsThe NGD circuit is usefully exploited in the electronic and communication system to reduce the undesired delay effect context. The NGD can be used to compensate the delay in any electronic devices and system.Social implicationsApplications based on the NGD technology will be helpful in the communication, transportation and security research fields by reducing the delay inherent to any electronic circuit.Originality/valueThe originality of the paper concerns the synthesis formulations of the RL elements in function of the expected HP-NGD optimal frequency, value and attenuation. In addition, an original measurement technique of HP-NGD is also introduced.
When disaster management agencies create disaster risk: a case study of the US's Federal Emergency Management Agency
Authors: Clark-Ginsberg Aaron , Easton-Calabria Lena C. , Patel Sonny S. , Balagna Jay , Payne Leslie A. 
Published: September 2021

PurposeDisaster management agencies are mandated to reduce risk for the populations that they serve. Yet, inequities in how they function may result in their activities creating disaster risk, particularly for already vulnerable and marginalized populations. In this article, how disaster management agencies create disaster risk for vulnerable and marginalized groups is examined, seeking to show the ways existing policies affect communities, and provide recommendations on policy and future research.Design/methodology/approachThe authors undertook a systematic review of the US disaster management agency, Federal Emergency Management Agency (FEMA), examining its programs through a lens of equity to understand how they shape disaster risk.FindingsDespite a growing commitment to equity within FEMA, procedural, distributive, and contextual inequities result in interventions that perpetuate and amplify disaster risk for vulnerable and marginalized populations. Some of these inequities could be remediated by shifting toward a more bottom-up approach to disaster management, such as community-based disaster risk reduction approaches.Practical implicationsDisaster management agencies and other organizations can use the results of this study to better understand how to devise interventions in ways that limit risk creation for vulnerable populations, including through community-based approaches.Originality/valueThis study is the first to examine disaster risk creation from an organizational perspective, and the first to focus explicitly on how disaster management agencies can shape risk creation. This helps understand the linkages between disaster risk creation, equity and organizations.
Learning opportunities and diversity of engineering students’ background in interdisciplinary group projects
Authors: Oti Akponanabofa Henry , Farrell Peter , Berrais Abbes , McMahon Paul , Boulbibane Mostapha , Paschalis Spyridon , Osman Yassin , AL-Faraj Furat , Duncan Malcolm 
Published: September 2021

PurposeIn line with business goals of customer satisfaction, higher education institutions of learning consider excellent student experience a priority. Teaching and learning are important aspects of satisfaction that are monitored annually by universities using tools such as the National Student Survey (NSS). The NSS results are useful for educational planning and informing consumer choices. This research measured undergraduate student experiences on an interdisciplinary project using the NSS framework. Hinged on diversity, the purpose was to investigate whether full-time (FT), part-time (PT) and degree apprenticeship students with varied work experience enhance their learning studying together on an interdisciplinary project.Design/methodology/approachThis research has measured, using the NSS criteria, student experiences on an interdisciplinary project on a civil engineering programme. It benchmarks the quality of learning and student understanding and perceptions of learning. The method is based upon a literature review and questionnaire survey of students.FindingsResults indicate good amounts of peer influence on learning in a simulated interdisciplinary team setting supported by a mix of diverse work experience in students’ background.Originality/valueSections of the NSS are extended with additional questions to capture the impact that FT, PT and degree apprenticeship study modes, closely associated with students’ background of job experience, have on teaching and learning.
Social work expertise, best interests and the court of protection
Authors: Lindsey Jaime , O’Reardon Mary 
Published: September 2021

Purpose
The purpose of this paper is to consider the role of social work professional evidence in mental capacity law, specifically Court of Protection proceedings. The authors analyse how social workers perform as evidence givers in this domain and how social work as a profession is perceived alongside other professions within the context of adult social care decision-making in mental capacity law.

Design/methodology/approach
This paper draws on textual evidence from judgments and existing empirical data published elsewhere. The authors consider the contribution of social work professional expertise to best interests decision-making in formal legal proceedings which, in turn, reflects on how social work expertise is relevant in everyday practice.

Findings
The findings of this paper include that social workers are well placed to be experts on best interests decision-making in mental capacity law. However, the authors show that the Court of Protection has not always endorsed this form of social work expertise in its judgments, meaning that social workers can struggle to articulate an expert knowledge base.

Originality/value
Overall, the authors conclude that social work evidence is incredibly valuable as expertise about the person’s best interests, particularly in the domain of welfare cases and care planning.
Real options analysis of revenue risk sharing in post-disaster housing reconstruction
Authors: Vahdatmanesh Mohammad , Firouzi Afshin , Rotimi James Olabode Bamidele 
Published: September 2021

Purpose
Post-disaster housing reconstruction (PDHR) demands a considerable percentage of global property investment, yet the post-disaster environment presents intricate challenges to reconstruction financing for governments and at the same time, revenue uncertainty for private investors. The purpose of this study is to develop a methodology for tackling land shortage and the financial challenges of PDHR in the aftermath of a disaster.

Design/methodology/approach
This study developed a methodology based on a combined minimum revenue guarantee and maximum revenue cap model using a well-established real options analysis (ROA) for revenue risk sharing in PDHR projects and land readjustment (LR) for finance. The applicability of the purported model is demonstrated through an illustrative example.

Findings
The results show that flexibility in the options could increase the PDHR contractor’s risk profile by increasing the expected value of the contractor investment and reducing the probability of investment loss. On the other side, a cap on the contractor revenue stream would allow the government to benefit from any excess in revenue and would counterbalance the value of the option.

Practical implications
The framework proposed in this study could serve as a practical risk-revenue sharing in PDHR projects. Governments and policymakers could use the findings to enable the successful delivery of PDHR projects and consequently bring the quality of life of affected people to pre-disaster conditions.

Originality/value
This study can be considered as a first attempt toward the use of the Australian barrier style options structure, and the trinomial lattice valuation model in PDHR projects, which incorporates LR, public-private partnerships, governmental guarantees and PDHR concepts in one ROA-based framework.
Towards 3D printing of a monocoque transtibial prosthesis using a bio-inspired design workflow
Authors: De Vivo Nicoloso Luca Gabriele , Pelz Joshua , Barrack Herb , Kuester Falko 
Published: September 2021

Purpose
There are over 40 million amputees globally with more than 185,000 Americans losing their limbs every year. For most of the world, prosthetic devices remain too expensive and uncomfortable. This paper aims to outline advancements made by a multidisciplinary research group, interested in advancing the restoration of human motion through accessible lower limb prostheses.

Design/methodology/approach
Customization, comfort and functionality are the most important metrics reported by prosthetists and patients. The work of this paper presents the design and manufacturing of a custom made, cost-effective and functional three-dimensional (3D) printed transtibial prosthesis monocoque design. The design of the prosthesis integrates 3D imaging, modelling and optimization techniques coupled with additive manufacturing.

Findings
The successful fabrication of a functional monocoque prosthesis through 3D printing indicates the workflow may be a solution to the worldwide accessibility crisis. The digital workflow developed in this work offers great potential for providing prosthetic devices to rural communities, which lack access to skilled prosthetic physicians. The authors found that using the workflow together with 3D printing, this study can create custom monocoque prostheses (Figure 16). These prostheses are comfortable, functional and properly aligned. In comparison with traditional prosthetic devices, the authors slowered the average cost, weight and time of production by 95%, 55% and 95%, respectively.

Social implications
This novel digital design and manufacturing workflow has the potential to democratize and globally proliferate access to prosthetic devices, which restore the patient’s mobility, quality of life and health. LIMBER’s toolbox can reach places where proper prosthetic and orthotic care is not available. The digital workflow reduces the cost of making custom devices by an order of magnitude, enabling broader reach, faster access and improved comfort. This is particularly important for children who grow quickly and need new devices every few months or years, timely access is both physically and psychologically important.

Originality/value
In this manuscript, the authors show the application of digital design techniques for fabricating prosthetic devices. The proposed workflow implements several advantageous changes and, most importantly, digitally blends the three components of a transtibial prosthesis into a single, 3D printable monocoque device. The development of a novel unibody transtibial device that is properly aligned and adjusted digitally, greatly reduces the number of visits an amputee must make to a clinic to have a certified prosthetist adjust and modify their prosthesis. The authors believe this novel workflow has the potential to ease the worldwide accessibility crisis for prostheses.
Commentary on “a logic model for the implementation of a regional workforce strategy in positive behavioural support”
Authors: Tomlinson Serena Rose Louisa 
Published: September 2021

Purpose
The purpose of this paper is to provide a commentary on “A logic model for the implementation of a regional workforce strategy in Positive Behavioural Support”.

Design/methodology/approach
This commentary provides a discussion of the importance of evaluating positive behaviour support (PBS) training and key issues relating to this. This provides a springboard from which researchers/practitioners may consider these issues when designing and evaluating PBS training courses.

Findings
Three main issues are explored: the necessary diversity and breadth of PBS training approaches, the outcome domains to be evaluated and wider systemic issues that may influence PBS training and evaluation of its effectiveness.

Originality/value
Effective PBS implementation requires robust training. To achieve this, it will be important for the field to overcome issues relating to the evaluation of training approaches.