| 1 |
What is hybrid micellar liquid chromatography primarily used for in the study?
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To study vegetable genetic variations. |
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Hybrid micellar liquid chromatography (HMLC) is primarily used in the study for the simultaneous separation and detection of specific pesticides (imidacloprid, chlorpyrifos, profenofos, and cypermethrin) in green leafy vegetables. |
based on the "Abstract" and "1. Introduction" sections of the document "Detection of most commonly used pesticides in green leafy vegetables from sagar, india using direct injection hybrid micellar liquid chromatography". |
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| 2 |
Which pesticide was found most commonly in the vegetable samples?
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Chlorpyrifos |
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Chlorpyrifos (CPS) was found to be the most commonly used pesticide among vegetable growers in Sagar city and was detected in seventy-six percent of the analyzed green leafy vegetable samples. |
based on the "Abstract" and "3.4. Evaluation of pesticide residue in green leafy vegetable" sections of the document "Detection of most commonly used pesticides in green leafy vegetables from sagar, india using direct injection hybrid micellar liquid chromatography". |
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| 3 |
What percentage of the vegetable samples tested were found to contain no detectable pesticides?
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16% |
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Sixteen percent of the collected green leafy vegetable samples were found to be negative for the selected pesticides. |
based on the "Abstract" and "3.4. Evaluation of pesticide residue in green leafy vegetable" sections of the document "Detection of most commonly used pesticides in green leafy vegetables from sagar, india using direct injection hybrid micellar liquid chromatography". |
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| 4 |
Which of the following is NOT a reason for the use of hybrid micellar liquid chromatography (HMLC)?
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It requires extensive solvent use. |
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The document explicitly states the opposite, highlighting HMLC as a "green analytical method" that "uses a low amount of toxic chemicals" and "reduces environmental pollution caused by bulk organic solvents in conventional chromatographic methods." This indicates that HMLC is characterized by low solvent use, not extensive use. |
based on the "Abstract" and "1. Introduction" sections of the document "Detection of most commonly used pesticides in green leafy vegetables from sagar, india using direct injection hybrid micellar liquid chromatography". |
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| 5 |
What was the primary methodological change in the HMLC technique used in the study?
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Use of a micellar mobile phase with reduced solvent usage. |
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This alteration in the mobile phase composition is highlighted as the key factor that facilitates the direct injection of real sample extracts after simple filtration, thereby saving time and money on sample pre-treatment and reducing environmental pollution. |
based on the "1. Introduction" section of the document "Detection of most commonly used pesticides in green leafy vegetables from sagar, india using direct injection hybrid micellar liquid chromatography". |
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| 6 |
According to the study, why might vegetable growers prefer other pesticides over Imidacloprid (ICP)?
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ICP is more expensive. |
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Conventional pesticides (Organophosphates - OPs) are available at significantly lower prices, approximately ten times less than Imidacloprid (ICP). |
based on the "3. Result and discussion" section, specifically "3.1. Pesticide dealer survey," of the document "Detection of most commonly used pesticides in green leafy vegetables from sagar, india using direct injection hybrid micellar liquid chromatography". |
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| 7 |
What is the major benefit of using ICP as a pesticide, according to the study?
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It is less toxic compared to many others. |
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The study states that the mode of action and chemical structure of ICP are similar to nicotine, but its toxicity is 700 folds lower than nicotine and this significantly reduced toxicity makes ICP a good alternative for pesticides that cause higher toxicity. |
based on the "1. Introduction" section of the document "Detection of most commonly used pesticides in green leafy vegetables from sagar, india using direct injection hybrid micellar liquid chromatography". |
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| 8 |
What aspect of the pesticide detection method was focused on during the method validation phase?
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Ensuring it can detect extremely low pesticide levels. |
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This is supported by the validation parameters of Limits of Detection (LOD) and Quantification (LOQ), which specifically address the lowest concentrations that can be reliably detected and quantified. |
based on the "3.3.2. Method validation" section of the document "Detection of most commonly used pesticides in green leafy vegetables from sagar, india using direct injection hybrid micellar liquid chromatography". |
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| 9 |
Considering the environmental impacts discussed, why is the HMLC method considered 'green'?
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It involves less waste and uses low-toxicity solvents. |
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The text states: "The methods used low toxicity solvents and waste in post-analysis is also reduced." |
based on the "1. Introduction" and "4. Conclusions" sections of the document "Detection of most commonly used pesticides in green leafy vegetables from sagar, india using direct injection hybrid micellar liquid chromatography". |
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| 10 |
What is the importance of the photodiode array detector in the HMLC technique used in the study?
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It detects the presence of pesticides across a spectrum of wavelengths. |
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a photodiode array detector (SPD-M20A, 190–800 nm)" and that "The maximum absorbance for ICP was 270 nm, for CPS was 266 nm, PFF was 253 nm and CP was 244 nm." This indicates its ability to detect across a range of wavelengths to identify different compounds |
based on the "2.5. Chromatographic conditions instruments and software processing" section of the document "Detection of most commonly used pesticides in green leafy vegetables from sagar, india using direct injection hybrid micellar liquid chromatography". |
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| 11 |
What is hyperthermia commonly used to treat?
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Cancer |
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Hyperthermia, also known as thermotherapy, is a technique that utilizes elevated body temperature to damage and kill cancerous cells while minimizing injury to normal cells. It is commonly used to treat various types of cancer, often in combination with other therapies. |
from the document "Hyperthermia: Role and Risk Factor for Cancer Treatment" |
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| 12 |
Which method is used to apply heat directly to a tumor in local hyperthermia?
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Microwaves |
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The "Local Hyperthermia" section states: "Different techniques were used to incorporate heat like as microwave, ultrasound and radiofrequency." |
based on the "Local Hyperthermia" and "Instrumentation: Applicator, Temperature Determination, Bolus, and Monitoring" sections of the document "Hyperthermia: Role and Risk Factor for Cancer Treatment" |
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| 13 |
What is the primary benefit of using hyperthermia in cancer treatment?
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It kills cancer cells with minimal damage to normal cells. |
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The primary benefit of using hyperthermia in cancer treatment is its ability to damage and kill cancerous cells with minimal injury to normal cells by elevating body temperature. |
based on the "Introduction," "Hyperthermia in Association With Radiotherapy," and "Hyperthermia in Association With Chemotherapy" sections of the document "Hyperthermia: Role and Risk Factor for Cancer Treatment" |
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| 14 |
Hyperthermia is often used in combination with which of the following treatments?
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Radiotherapy and chemotherapy |
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Successful therapy method in combination with radiation therapy and/or chemotherapy" and that it "is widely applicable with different other forms of cancer therapy, including radiation therapy and chemotherapy. |
based on the "Introduction" section of the document "Hyperthermia: Role and Risk Factor for Cancer Treatment" |
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| 15 |
What is the main challenge of using hyperthermia in cancer treatment?
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It can only be used for brain tumors. |
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The main challenge of using hyperthermia in cancer treatment is achieving uniform and adequate heating of the tumor while minimizing damage to surrounding healthy tissues. |
based on the "Challenges of Hyperthermia" section of the document "Hyperthermia: Role and Risk Factor for Cancer Treatment" |
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| 16 |
Which type of hyperthermia involves heating a larger region or the whole body?
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Whole-body hyperthermia |
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In systemic hyperthermia, the entire body is exposed to elevated temperatures, typically achieved through methods such as warm water immersion or the use of heated blankets. This approach aims to enhance the overall therapeutic effect on cancer cells throughout the body, particularly in cases where multiple tumors are present or when the cancer has metastasized. |
The answer is based on the definitions and classifications of hyperthermia as outlined in the document "Hyperthermia: Role and Risk Factor for Cancer Treatment"
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| 17 |
What type of hyperthermia uses applicators inserted into or near a body cavity to deliver heat?
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Regional hyperthermia |
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This method allows for localized heating of specific areas, such as the abdominal or pelvic cavity, and is often used to treat cancers in those regions, such as ovarian or peritoneal cancers.
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based on the definitions and classifications of hyperthermia as outlined in the document "Hyperthermia: Role and Risk Factor for Cancer Treatment" |
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| 18 |
What is a significant potential side effect of whole-body hyperthermia?
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Systemic stress affecting major organs |
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Whole-body hyperthermia can induce stress responses in the body, which may impact major organs such as the heart, lungs, and kidneys. This systemic stress can lead to complications, especially in patients with pre-existing health conditions.
The other options, such as increased appetite, enhanced mobility, immediate tumor shrinkage, and hair growth, are not typically associated with whole-body hyperthermia as side effects. In fact, some of these may be considered potential benefits or outcomes rather than side effects. |
based on the understanding of the potential side effects and risks associated with whole-body hyperthermia as discussed in the literature on cancer treatment and hyperthermia. |
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| 19 |
Considering the physics of heat transfer, why is controlling hyperthermia challenging during treatment?
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Human tissue has varying thermal conductivities which affect heat distribution. |
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This choice highlights the fundamental issue of uneven heat distribution due to the differing thermal properties of various tissues, which complicates the ability to achieve consistent and effective heating in targeted areas. While the other options also present valid points, the variability in thermal conductivity is a primary factor that directly impacts the effectiveness of hyperthermia treatment. |
based on the principles of heat transfer physics and medical studies related to hyperthermia treatment, which have been researched and published in medical and physics literature. |
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| 20 |
Why is hyperthermia considered a beneficial adjunct to radiotherapy and chemotherapy?
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It makes cancer cells more susceptible to other treatments. |
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Hyperthermia enhances the effectiveness of radiotherapy and chemotherapy by increasing tumor sensitivity to these treatments. It can improve drug delivery, enhance cell death, and disrupt tumor blood flow, leading to better overall treatment outcomes. |
based on medical and scientific studies regarding cancer treatment, particularly the use of hyperthermia as an adjunct to radiotherapy and chemotherapy. This information has been researched and published in medical literature. |
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