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    Wyświetlanie 1-8 z 8
    Tytuł:
    Nitrogen and phosphorous removal from leachate by duckweed (Lemna minor)
    Autorzy:
    Iqbal, J.
    Baig, M. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/206940.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    climatic conditions
    Islamabad
    Pakistan
    Lemna minor
    nitrogen
    phosphorous
    removal
    biomass production
    uwarunkowania klimatyczne
    usuwanie biogenów
    produkcja biomasy
    azot
    fosfor
    Opis:
    Two separate experiments were conducted during the months of June and September, 2014 to investigate the nutrient (nitrogen and phosphorous) removal from leachate by growing duckweed, Lemna minor in various leachate dilutions under natural climatic conditions of Islamabad, Pakistan. The highest uptake of nitrogen and phosphorous by duckweed was 95% and 90%, respectively, whereas the highest growth rate of duckweed was 6.4 g·m–2·day–1 during both experiments. The highest rates of nitrogen and phosphorous removal from leachate media were 380 and 200 mg·m–2·day–1, respectively, during both experiments. Nutrient uptake by duckweed and its growth rate was rapid at more diluted leachate whereas the nutrient removal rates from leachate media were higher in more concentrated leachate. The duckweed growth and its nutrient uptake ability under natural climatic conditions were directly affected by seasonal climatic variations. Relatively higher temperature and more intense solar radiation were more favorable for the duckweed growth and its nutrient uptake ability. Both parameters can be improved by pre-acclimation of duckweed with leachate which prevents the lag phase of the duckweed growth.
    Źródło:
    Environment Protection Engineering; 2017, 43, 4; 123-134
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Perioperative challenges in a primary hyperparathyroid patient with osteitis fibrosa cystic and borderline QTc: a case-based review and practice analysis
    Autorzy:
    HMR., Karim
    PK., Neema
    Iqbal, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1918899.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Medyczny w Białymstoku
    Tematy:
    Primary hyperparathyroid
    severe hypercalcemia
    torsade de pointes
    Desflurane
    anesthesia
    Opis:
    Introduction: Perioperative care of primary hyperparathyroidism patients is a significant challenge. The challenge increases when the preoperative optimization of the patient is suboptimal due to any reason. Concomitant complications like osteitis fibrosa cystic, renal involvement, and multiple electrolyte abnormalities predispose these patients towards multiple morbidities and even mortality during the perioperative period. It is known that the hypercalcemia causes shortened QT, and the inhalational and intravenous anesthesia drug-induced QT prolongation is likely to be buffered. On the other hand, prolonged QTc in primary hyperparathyroid patients in the presence of hypercalcemia is more uncommon, but an extremely challenging situation for anesthesiologists as these patients are more prone to torsadogenesity. Materials and methods: A case-based review is presented in this paper. To review the current practice and opinions, we searched PubMed and Google Scholar using the advanced search engine with the combination index words of primary hyper-parathyroidism, anesthesia, anaesthesia, anesthesia management, and anaesthesia management with a time frame of January 1, 2000, to August 30, 2018. Results: The results are enumerated in the text. Although anesthetic management of primary hyperparathyroid patients is available in the literature, anesthetic management of primary hyperparathyroid patients with prolonged or borderline QTc is not well described. In this paper, we present a case that was successfully managed using Desflurane based minimal flow anesthesia, which is probably also the first of such. Conclusion: Balanced anesthesia with Propofol induction and modern inhalational agents for maintenance and non-depolarizing neuromuscular blockade appears to be safe method of anesthesia.
    Źródło:
    Progress in Health Sciences; 2019, 2; 57-63
    2083-1617
    Pojawia się w:
    Progress in Health Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multicriteria Decision Making (MCDM) for evaluation of different transportation alternatives: A case of Rawalpindi bypass Pakistan
    Autorzy:
    Shakir, M. K.
    Khurshid, M. B.
    Iqbal, J.
    Adeel, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2140952.pdf
    Data publikacji:
    2018
    Wydawca:
    Fundacja Centrum Badań Socjologicznych
    Tematy:
    Rawalpindi bypass
    multi criteria decision making
    travel time savings
    safety savings
    vehicle operating cost savings
    air quality impact
    Opis:
    Safe, efficient and user-friendly transportation of people and goods have been a premier point of concern for all the developed and the developing countries around the globe. National Highway N-5 or GT road is the most important highway link in Pakistan. It carries about 80% of the country freight traffic. When this heavy traffic passes through the twin cities of Rawalpindi and Islamabad, it causes congestion and environmental hazards particularly in business centers of Rawalpindi city. Because of this heavy traffic volume passing through the cities situated along N-5, bypasses to all of them have been provided however, Rawalpindi is the only city along N5 which is still without a bypass. A bypass to Rawalpindi city is, therefore, inevitable. Besides this, the Bypass will also provide a short access to the traffic on the Motorway (M2) destined for the western part of Rawalpindi. For this research work, Rawalpindi Bypass is taken as a hypothetical scenario and is evaluated for its benefits. Besides addition to the networks of highways across Pakistan, this bypass has many other benefits which include a decrease in congestion from Islamabad and Rawalpindi main arteries (ISB Highway and IJP Road) that results in travel time savings, vehicle operating cost savings, safety savings, and reduced air pollution. This research aims to produce an engineering and scientific comparison of various costs and benefits associated with the road agency and users about the construction of an alternative. The Project involves transportation demand estimation on different segments of the National and Arterial roads, Project Costs, travel time savings, safety saving, vehicle operating cost savings, economic efficiency analysis, Air quality impact and multi criterion transportation decision making. The transportation decision making process usually involves the evaluation of effectiveness and efficiency of an alternative decision with respect to a base case DO-NOTHING Scenario. The authors have taken the existing roadway structure with no improvements as DO-NOTHING Scenario, whereas the construction of Rawalpindi Bypass (60 km) with 2 lanes in each direction is taken as Alternative B and Rawalpindi Bypass (51 km) as Alternative C. Multi criteria decision making technique is used for decision because of multiple options with different dimensions, both monetary and non-monetary. Basing of MCDM this study recommends Alternative C (51 km) for Rawalpindi Bypass.
    Źródło:
    Journal of Sustainable Development of Transport and Logistics; 2018, 3, 3; 38-54
    2520-2979
    Pojawia się w:
    Journal of Sustainable Development of Transport and Logistics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Review of computer codes for modeling corrosion product transport and activity build-up in light water reactors
    Autorzy:
    Rafique, M.
    Mirza, N. M.
    Mirza, S. M.
    Iqbal, M. J.
    Powiązania:
    https://bibliotekanauki.pl/articles/148648.pdf
    Data publikacji:
    2010
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    corrosion product
    light water reactors
    fuel cladding
    radiation field
    Opis:
    The corrosion products are among the leading sources of radiation in primary coolant circuits of pressurized water reactors leading to prolongation of reactor down-time for routine maintenance entailing substantial loss of revenues. These deposits affect adversely coolant flow rates resulting in elevation of fuel and cladding temperature and become activated by high neutron flux in reactor core consequently creating high radiation field by accumulating in the out-of-core reactor components. In the case of light water reactors (LWRs), prevailing corrosion products include 59Fe, 99Mo, 56Mn, 58Co, and 60Co. The 56Mn is the leading corrosion product activity source during operation while cobalt isotopes dominate the activity after reactor shutdown. This paper presents a detailed discussion on some computer codes developed for prediction and transport of corrosion product activity in LWRs.
    Źródło:
    Nukleonika; 2010, 55, 3; 263-269
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of ownership, competition, and management practices on efficiency of banking sector
    Wpływ prawa własności, konkurencji i praktyk zarządzania na wydajność sektora bankowego
    Autorzy:
    Qayyum, A.
    Kasheer, M.
    Haider, J.
    Mehmood, O.
    Iqbal, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/405599.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Częstochowska
    Tematy:
    bank
    ownership structure
    competition
    governance
    management practices
    efficiency
    data envelopment analysis
    struktura własności
    konkurencja
    zarządzanie
    praktyki zarządzania
    efektywność
    analiza otoczenia
    Opis:
    In the 1990s the financial sector of Pakistan underwent massive reforms. The primary aim of restructuring was to privatize state-owned institutions, abolish entry barriers for new players, and consequently increase the efficiency of the whole system. This study uses an unbalanced panel of 21 commercial banks listed at Pakistan stock exchange throughout 2000 to 2017 from “BankFocus” and “Bloomberg”. This research measures the effect of ownership, competition, and management practices on banks efficiency. The authors found a higher efficiency of private banks in comparison to state-owned counterparts. The empirical analysis suggests that an increase in foreign ownership and institutional ownership impact positively on all measures of efficiency. The relationship between competition and efficiency supports “competition-efficiency hypothesis” and proposes regulatory measures to regulate the market further. Additionally, banks with a higher standard of management practices tend to be more efficient. These findings imply that there is a need to regulate the bigger banks and ease the market entry for foreign and institutional owners, who brings superior managerial standards and hence efficiency.
    W latach 90tych XX wieku sektor finansowy w Pakistanie przeszedł ogromne reformy. Głównym celem restrukturyzacji była prywatyzacja państwowych instytucji, zniesienie barier wejścia dla nowych graczy, a w konsekwencji zwiększenie efektywności całego systemu. W przeprowadzonym badaniu wykorzystano niewyważony panel 21 banków komercyjnych notowanych na giełdzie w Pakistanie w latach 2000-2017 z "BankFocus" i "Bloomberg". Badanie to mierzy wpływ własności, konkurencji i praktyk zarządzania na efektywność banków. Autorzy stwierdzili wyższą efektywność banków prywatnych w porównaniu do państwowych odpowiedników. Analiza empiryczna sugeruje, że wzrost własności zagranicznej i własności instytucjonalnej wpływa pozytywnie na wszystkie miary efektywności. Związek między konkurencją a wydajnością wspiera "hipotezę efektywności konkurencji" i proponuje środki regulacyjne w celu dalszego uregulowania rynku. Ponadto banki o wyższym standardzie praktyk zarządzania wydają się być bardziej wydajne. Ustalenia te sugerują, że istnieje potrzeba regulacji większych banków i ułatwienia wejścia na rynek dla zagranicznych i instytucjonalnych właścicieli, którzy wprowadzają lepsze standardy zarządzania, a tym samym efektywność.
    Źródło:
    Polish Journal of Management Studies; 2018, 18, 1; 262-276
    2081-7452
    Pojawia się w:
    Polish Journal of Management Studies
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rapid callogenesis and plant regeneration of fine and coarse varieties of rice
    Autorzy:
    Khokhar, M.I.
    Iqbal, M.Z.
    Teixeira da Silva, J.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/80293.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    rice
    coarse structure
    fine structure
    plant regeneration
    callogenesis
    6-benzyladenine
    callus induction
    root formation
    kinetin
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2017, 98, 4
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A herpetotheriid marsupial from the Oligocene of Bugti Hills, Balochistan, Pakistan
    Autorzy:
    Crochet, J Y
    Antoine, P.O.
    Benammi, M.
    Iqbal, N.
    Marivaux, L.
    Metais, G.
    Welcomme, J.L.
    Powiązania:
    https://bibliotekanauki.pl/articles/22725.pdf
    Data publikacji:
    2007
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Bugti Hills
    classification
    herpetotheriid marsupial
    Balochistan
    Chitarwata Formation
    Pakistan
    Oligocene
    fossil vertebrate
    Asia
    Asiadidelphis akbarbugtii
    paleontology
    Opis:
    Didelphimorph marsupials were widely distributed in Asia during the Cenozoic, but their occurrence in the Indian subcontinent has not so far been demonstrated. Here, we describe a new herpetotheriid marsupial Asiadidelphis akbarbugtiisp. nov. from the early Oligocene Bugti Member of the Chitarwata Formation, Bugti Hills, Pakistan. The discovery of the herpetotheriids in the Oligocene of Pakistan represents the most southern occurrence of the family, which was thought to have occurred only to the north of the Alpine−Himalayan Suture. Our data suggest that episodic faunal exchanges occurred between the Asian mainland and the Indian subcontinent during the late Paleogene, and that the southern Asian faunas were not as completely isolated by the Himalayan chain as formerly believed.
    Źródło:
    Acta Palaeontologica Polonica; 2007, 52, 3
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ethnobotanical investigation of significant seasonal medicinal weeds of Toba Tek Singh District, Punjab, Pakistan
    Autorzy:
    Tufail, M.
    Hussain, K.
    Nawaz, K.
    Iqbal, I.
    Arshad, N.
    Shahzadi, A.
    Javed, A.
    Nazeer, A.
    Bashir, Z.
    Qurban, M.
    Zeb, J.
    Ali, S.S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2049359.pdf
    Data publikacji:
    2021
    Wydawca:
    Instytut Włókien Naturalnych i Roślin Zielarskich
    Tematy:
    weeds
    ethnobotany
    flora
    survey
    chwasty
    etnobotanika
    badanie
    Opis:
    Introduction: Medicinal plants are found throughout the world but most are considered weeds. They are – directly or indirectly – the major source of medicines in pharmaceutical and herbal industries. Formulations used to prepare medicines or the method of use for these plants are mainly based on folk or traditional knowledge. This folk knowledge is not documented in many areas and needs to be explored. Objectives: This study was aimed to enlist the seasonal weed species with traditional medicinal usage in Toba Tek Singh District, Punjab, Pakistan. Methods: Field surveys were arranged in winter and summer 2019–2020 to enlist the important medicinal weeds and traditional knowledge of the local community. Data collected were as follows: local name of weed, medicinal use, method and part used. Results: Numerous wild perennial, biennial and annual plants were identified, 30 of them were ethnomedicinally important in the local community. They were grouped in 16 families. It was found that whole weed is used in many prescriptions (37%). Achyranthes aspera L. (Amaranthaceae) was the most common weed used in treating fevers, respiratory problems and asthma. Cichorium intybus L. (Asteraceae) was used in summer drinks to reduce thirst, improve digestion and liver function. Chenopodium album L. (Amaranthaceae) was used with 0.71 UV and 0.147 RFC values. Medicago polymorpha L. (Fabaceae) was used to treat kidney, intestinal and bladder infections. Its UV was 0.65 and RFC was 0.121. Tribulus terrestris L. (Zygophyllaceae) was used in impotency treatment, and in the removal of kidney stones and urinary tract infections treatment. It has 0.63 UV and 0.21 RFC values. This weed also showed the highest Fidelity Level (FL) (77%), as compared to other weeds. Conclusion: It was concluded that there are many significant medicinal weeds in the Toba Tek Singh District, Punjab, Pakistan that are used in traditional medicines in treating various disorders. These plants also showed herbal or pharmacological importance that can be used to develop medicine at commercial scale.
    Źródło:
    Herba Polonica; 2021, 67, 2; 29-38
    0018-0599
    Pojawia się w:
    Herba Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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